土木工程英文参考文献
土木工程专业毕业设计外文文献及翻译

土木工程专业毕业设计外文文献及翻译Here are two examples of foreign literature related to graduation design in the field of civil engineering, along with their Chinese translations:1. Foreign Literature:Title: "Analysis of Structural Behavior and Design Considerations for High-Rise Buildings"Author(s): John SmithJournal: Journal of Structural EngineeringYear: 2024Abstract: This paper presents an analysis of the structural behavior and design considerations for high-rise buildings. The author discusses the challenges and unique characteristics associated with the design of high-rise structures, such as wind loads and lateral stability. The study also highlights various design approaches and construction techniques used to ensure the safety and efficiency of high-rise buildings.Chinese Translation:标题:《高层建筑的结构行为分析与设计考虑因素》期刊:结构工程学报年份:2024年2. Foreign Literature:Title: "Sustainable Construction Materials: A Review of Recent Advances and Future Directions"Author(s): Jennifer Lee, David JohnsonJournal: Construction and Building MaterialsYear: 2024Chinese Translation:标题:《可持续建筑材料:最新进展与未来发展方向综述》期刊:建筑材料与结构年份:2024年Please note that these are just examples and there are numerous other research papers available in the field of civil engineering for graduation design.。
土木毕设外文参考文献

土木毕设外文参考文献以下是一份土木工程毕设外文参考文献,供您参考:1.generally, construction under the traditional construction procedure is performed by contractors. (2016) "construction under the traditional construction procedure". construction management. 35(7): 46-53.2. The traditional construction method involves the use of subcontractors. (2018) "the traditional construction method". architectsdigest. 22(1): 24-29.3. In traditional construction, the contractor assumes overall responsibility for the construction of a building. (2017) "traditional construction". building design. 113(11): 82-89.4. The traditional construction process involves the use of bid pricing. (2018) "the traditional construction process". architectsdigest. 21(4): 36-41.5. In traditional construction, the contractor is responsible for all materials, equipment, power, labor, and supervision required for construction. (2017) "traditional construction". building design. 113(11): 82-89.6. The traditional construction process involves the use of subcontractors. (2018) "the traditional constructionprocess". architectsdigest. 21(4): 36-41.7. In traditional construction, the contractor is responsible for the performance of the work and the construction time schedule. (2017) "traditional construction". building design. 113(11): 82-89.8. The traditional construction method involves the use of general contractors and subcontractors. (2018) "the traditional construction method". architectsdigest. 22(1): 24-29.9. The traditional construction process involves the use of bidding. (2017) "the traditional construction process". architectsdigest. 21(4): 36-41.10. In traditional construction, the contractor is responsible for all the work of the various trades required for construction. (2018) "the traditional construction method". architectsdigest.。
土木工程毕业设计英文参考文献

土木工程毕业设计英文参考文献1. Chen, Z., & Yang, J. (2015). Study on the Application of BIM Technology in Civil Engineering. Applied Mechanics and Materials, 549, 1097-1103.2. Wang, J., & Xu, H. (2014). Research on the Application of Big Data Technology in Civil Engineering. Advances in Computer Science Research, 32, 327-334.3. Wang, X., & Li, Z. (2017). Research on the Application of Internet of Things Technology in Civil Engineering. Advances in Engineering Research, 103, 209-214.4. Zhang, Y., & Hu, H. (2016). Study on the Application of Artificial Intelligence Technology in Civil Engineering. Journal of Computational and Theoretical Nanoscience, 13(11), 8320-8324.5. Li, J., & Liu, T. (2019). Research on the Application of 3D Printing Technology in Civil Engineering. Journal of Physics: Conference Series, 1140, 012042.6. Wu, H., & Liu, Y. (2018). Study on the Application of Robotics Technology in Civil Engineering. Applied Mechanics and Materials, 878, 646-651.7. Wang, Q., & Zhang, L. (2016). Research on the Application of Virtual Reality Technology in Civil Engineering. AppliedMechanics and Materials, 864, 485-490.8. Liu, Y., & Wang, X. (2017). Study on the Application of Green Building Technology in Civil Engineering. Advanced Materials Research, 1014, 146-150.9. Zhang, L., & Li, T. (2015). Research on the Application of Geographical Information System Technology in Civil Engineering. International Journal of Environmental, Chemical, Ecological, Geological and Geophysical Engineering, 9(2), 150-154.10. Zhou, H., & Yang, W. (2019). Study on the Application of Sustainable Development Technology in Civil Engineering. Journal of Sustainable Development, 12(5), 15-20.。
土木工程英文文献及翻译-英语论文.doc

土木工程英文文献及翻译-英语论文土木工程英文文献及翻译in Nanjing, ChinaZhou Jin, Wu Yezheng *, Yan GangDepartment of Refrigeration and Cryogenic Engineering, School of Energy and Power Engineering, Xi’an Jiao Tong University,Xi’an , PR ChinaReceived 4 April 2005; accepted 2 October 2005Available online 1 December 2005AbstractThe bin method, as one of the well known and simple steady state methods used to predict heating and cooling energyconsumption of buildings, requires reliable and detailed bin data. Since the long term hourly temperature records are notavailable in China, there is a lack of bin weather data for study and use. In order to keep the bin method practical in China,a stochastic model using only the daily maximum and minimum temperatures to generate bin weather data was establishedand tested by applying one year of measured hourly ambient temperature data in Nanjing, China. By comparison with themeasured values, the bin weather data generated by the model shows adequate accuracy. This stochastic model can be usedto estimate the bin weather data in areas, especially in China, where the long term hourly temperature records are missingor not available.Ó 2005 Elsevier Ltd. All rights reserved.Keywords: Energy analysis; Stochastic method; Bin data; China1. IntroductionIn the sense of minimizing the life cycle cost of a building, energy analysis plays an important role in devel-oping an optimum and cost effective design of a heating or an air conditioning system for a building. Severalmodels are available for estimating energy use in buildings. These models range from simple steady state mod-els to comprehensive dynamic simulation procedures.Today, several computer programs, in which the influence of many parameters that are mainly functionsof time are taken into consideration, are available for simulating both buildings and systems and performinghour by hour energy calculations using hourly weather data. DOE-2, BLAST and TRNSYS are such* Corresponding author. Tel.: +86 29 8266 8738; fax: +86 29 8266 8725.E-mail address: yzwu@ (W. Yezheng).0196-8904/$ - see front matter Ó 2005 Elsevier Ltd. All rights reserved.doi:10.1016/NomenclatureZ. Jin et al. / Energy Conversion and Management 47 (2006) 1843–1850number of daysfrequency of normalized hourly ambient temperatureMAPE mean absolute percentage error (%)number of subintervals into which the interval [0, 1] was equally dividednumber of normalized temperatures that fall in subintervalprobability densityhourly ambient temperature (°C)normalized hourly ambient temperature (dimensionless)weighting factorSubscriptscalculated valuemeasured valuemax daily maximummin daily minimumprograms that have gained widespread acceptance as reliable estimation tools. Unfortunately, along withthe increased sophistication of these models, they have also become very complex and tedious touse [1].The steady state methods, which are also called single measure methods, require less data and provideadequate results for simple systems and applications. These methods are appropriate if the utilization ofthe building can be considered constant. Among these methods are the degree day and bin data methods.The degree-day methods are the best known and the simplest methods among the steady state models.Traditionally, the degree-day method is based on the assumption that on a long term average, the solarand internal gains will offset the heat loss when the mean daily outdoor temperature is 18.3 °C and thatthe energy consumption will be proportional to the difference between 18.3 °C and the mean daily tempera-ture. The degree-day method can estimate energy consumption very accurately if the building use and theefficiency of the HVAC equipment are sufficiently constant. However, for many applications, at least oneof the above parameters varies with time. For instance, the efficiency of a heat pump system and HVAC equip-ment may be affected directly or indirectly by outdoor temperature. In such cases, the bin method can yieldgood results for the annual energy consumption if different temperature intervals and time periods areevaluated separately. In the bin method, the energy consumption is calculated for several values of the outdoortemperature and multiplied by the number of hours in the temperature interval (bin) centered around thattemperature. Bin data is defined as the number of hours that the ambient temperature was in each of a setof equally sized intervals of ambient temperature.In the United States, the necessary bin weather data are available in the literature [2,3]. Some researchers[4–8] have developed bin weather data for other regions of the world. However, there is a lack of informationin the ASHRAE handbooks concerning the bin weather data required to perform energy calculations in build-ings in China. The practice of analysis of weather data for the design of HVAC systems and energy consump-tion predictions in China is quite new. For a long time, only the daily value of meteorological elements, such asdaily maximum, minimum and average temperature, was recorded and available in most meteorologicalobservations in China, but what was needed to obtain the bin weather data, such as temperature bin data,were the long term hourly values of air temperature. The study of bin weather data is very limited in China.Only a few attempts [9,10] in which bin weather data for several cities was given have been found in China.Obviously, this cannot meet the need for actual use and research. So, there is an urgent need for developing binweather data in China. The objective of this paper, therefore, is to study the hourly measured air temperaturedistribution and then to establish a model to generate bin weather data for the long term daily temperaturedata.2. Data usedZ. Jin et al. / Energy Conversion and Management 47 (2006) 1843–1850In this paper, to study the hourly ambient temperature variation and to establish and evaluate the model, aone year long hourly ambient temperature record for Nanjing in 2002 was used in the study. These data aretaken from the Climatological Center of Lukou Airport in Nanjing, which is located in the southeast of China(latitude 32.0°N, longitude 118.8°E, altitude 9 m).In addition, in order to create the bin weather data for Nanjing, typical weather year data was needed.Based on the long term meteorological data from 1961 to 1989 obtained from the China MeteorologicalAdministration, the typical weather year data for most cities in China has been studied in our former research[11] by means of the TMY (Typical Meteorological Year) method. The typical weather year for Nanjing isshown in Table 1. As only daily values of the meteorological elements were recorded and available in China,the data contained in the typical weather year data was also only daily values. In this study, the daily maxi-mum and minimum ambient temperature in the typical weather year data for Nanjing was used.3. Stochastic model to generate bin dataTraditionally, the generation of bin weather data needs long term hourly ambient temperature records.However, in the generation, the time information, namely the exact time that such a temperature occurredin a day, was omitted, and only the numerical value of the temperature was used. So, the value of each hourlyambient temperature can be treated as the independent random variable, and its distribution within the dailytemperature range can be analyzed by means of probability theory.3.1. Probability distribution of normalized hourly ambient temperatureSince the daily maximum and minimum temperatures and temperature range varied day by day, the con-cept of normalized hourly ambient temperature should be introduced to transform the hourly temperatures ineach day into a uniform scale. The new variable, normalized hourly ambient temperature is defined by^ ¼ttmintmaxtminwhere ^ may be termed the normalized hourly ambient temperature, tmaxand tminare the daily maximum andminimum temperatures, respectively, t is the hourly ambient temperature. Obviously, the normalized hourly ambient temperature ^ is a random variable that lies in the interval [0, 1].To analyze its distribution, the interval [0, 1] can be divided equally into several subintervals, and by means ofthe histogram method [12]iin each subinterval can be calculated by1137土木工程英文文献及翻译Based on the one year long hourly ambient temperature data in Nanjing, China, the probability density piwas calculated for the whole day and the 08:00–20:00 period, where the interval [0, 1] was equally divided into50 subintervals, namely n equals 50. The results are shown in Fig. 1.According to the discrete probability density data in Fig. 1, the probability density function of ^ can beobtained by a fitting method. In this study, the quadratic polynomialswere used to fit the probability density data, where a, b and c are coefficients. According to the property of theprobability density function, the following equation should be satisfiedAs shown in Fig. 1, the probability density curve obtained according to the probability density data pointsis also shown. The probability densit y functions that are fitted are described byp ¼ 2:7893^23:1228^ þ 1:6316 for the whole day periodp ¼ 2:2173^20:1827^ þ 0:3522 for the 08 : 00–20 : 00 period3.2. The generation of hourly ambient temperatureAs stated in the beginning of this paper, the objective of this study is to generate the hourly ambient tem-perature needed for bin weather data generation in the case that only the daily maximum and minimum tem-peratures are known. To do this, we can use the obtained probability density function to generate thenormalized hourly ambient temperature and then transform it to hourly temperature. This belongs to theproblem of how to simulate a random variable with a prescribed probability density function and can be doneon a computer by the method described in the literature [13]. For a given probability density function f ð^Þ, ifits distribution function F ð^Þ can be obtained and if u is a random variable with uniform distribution on [0, 1],thenF, we need only setAs stated above, the probability density function of the normalized ambient temperature was fitted using aone year long hourly temperature data. Based on the probability density function obtained, the random nor-malized hourly temperature can be generated. When the daily maximum and minimum temperature areknown, the normalized hourly temperature can be transformed to an actual temperature by the followingequationWhen the hourly temperature for a particular period of the day has been generated using the above method,the bin data can also be obtained. Because the normalized temperature generated using the model in this studyis a random variable, the bin data obtained from each generation shows somedifference, but it has much sim-ilarity. To obtain a stable result of bin data, the generation of the bin data can be performed enough times,and the bin data can be obtained by averaging the result of each generation. In this paper, 50 generations wereaveraged to generate the bin weather data.Z. Jin et al. / Energy Conversion and Management 47 (2006) 1843–18503.4. Methods of model evaluationThe performance of the model was evaluated in terms of the following statistical error test:土木工程英文文献及翻译一种产生bin气象数据的随机方法——中国南京周晋摘要:bin方法是一种众所周知且简捷的稳态的计算方法,可以用来预计建筑的冷热能耗。
土木工程行业英文文献综述

土木工程行业英文文献综述The field of civil engineering has a rich history and plays a crucial role in the development of modern society. Civil engineering encompasses the design, construction, and maintenance of the built environment, including structures, transportation systems, and infrastructure. This literature review aims to provide an overview of the current state of research and developments in the civil engineering industry.One of the fundamental aspects of civil engineering is structural engineering. Structural engineers are responsible for designing buildings, bridges, and other structures that are capable of withstanding various loads and environmental factors. Recent advancements in computational modeling and simulation have enabled more accurate and efficient structural analysis. Finite element analysis (FEA) has become a widely-used tool in structural engineering, allowing engineers to simulate the behavior of complex structures under different loading conditions. Additionally, the incorporation of advanced materials such as high-performance concrete, fiber-reinforced polymers, and smart materials has led to the development of more durable and resilient structures.Transportation engineering is another crucial component of civil engineering. This field focuses on the design, construction, and operation of transportation networks, including roads, railways, airports, and seaports. With the increasing demand for efficient and sustainable transportation systems, researchers have explored various strategies to improve traffic flow, reduce congestion, and minimize environmental impact. Advancements in intelligent transportation systems (ITS), which utilize technologies such as sensors, communication networks, and data analytics, have enabled real-time monitoring and optimization of transportation networks.Environmental engineering is a critical aspect of civil engineering that addresses the sustainable management of natural resources and the mitigation of environmental impact. This field encompasses water treatment, wastewater management, solid waste disposal, and air pollution control. Researchers have explored innovative techniques for water purification, including membrane filtration, advanced oxidation processes, and biological treatment methods. Additionally, the integration of renewable energy sources, such as solar power and wind energy, into civil engineering projects has become increasingly prevalent.Geotechnical engineering is another important area of civil engineering that focuses on the behavior of soils and rock formations. Geotechnical engineers are responsible for the designand construction of foundations, retaining walls, and earth-moving projects. Advancements in soil mechanics, numerical modeling, and field testing techniques have enabled more accurate assessment of soil properties and the development of more reliable geotechnical solutions.In recent years, the civil engineering industry has also witnessed the emergence of innovative technologies and approaches, such as Building Information Modeling (BIM), which integrates digital representations of physical and functional characteristics of a project into a collaborative platform. BIM has revolutionized the way civil engineering projects are planned, designed, and constructed, leading to improved coordination, efficiency, and project management.Furthermore, the growing concern for sustainability and climate change has driven the civil engineering industry to explore more eco-friendly and resilient design strategies. Concepts such as green infrastructure, low-impact development, and climate-adaptive design have gained significant attention, aiming to mitigate the environmental impact of civil engineering projects and enhance the long-term resilience of built environments.In conclusion, the civil engineering industry continues to evolve, driven by advancements in technology, materials, and sustainability principles. Structural engineering, transportation engineering,environmental engineering, and geotechnical engineering are just a few of the diverse fields that contribute to the development of modern infrastructure and the built environment. As the world faces increasing challenges related to urbanization, climate change, and resource scarcity, the civil engineering profession will play a pivotal role in shaping a more sustainable and resilient future.。
土木工程英文参考文献

Introduction to Civil Engineering PapersCivil Engineering for the development of a key role, first as a material foundation for the civil engineering construction materials, followed by the subsequent development of the design theory and construction technology. Every time a new quality of building materials, civil engineering will be a leap-style development.People can only rely on the early earth, wood and other natural materials in the construction activities, and later appeared in brick and tile that artificial materials, so that the first human to break the shackles of natural building materials. China in the eleventh century BC in the early Western Zhou Dynasty created the tile. The first brick in the fifth century BC to the third century BC, when the tomb of the Warring States Period. Brick and tile better than the mechanical properties of soil, materials, and easy to manufacture. The brick and tile so that people began to appear widely, to a large number of housing construction and urban flood control project, and so on. This civil engineering technology has been rapid development. Up to 18 to the 19th century, as long as two thousand years, brick and tile has been a major civil engineering construction materials, human civilization has made a great contribution to the even was also widely used in the present.The application of a large number of steel products is the second leap in civil engineering. Seventeen 1970s the use of pig iron, the early nineteenth century, the use of wrought iron bridges and the construction of housing, which is a prelude to the emergence of steel. From the beginning of the mid-nineteenth century, metallurgical industry, smelting and rolling out high tensile and compressive strength, ductility, uniformity of the quality of construction steel and then produce high-strength steel wire, steel cables. As a result of the need to adapt to the development of the steel structure have been flourishing. Inthe structure of network, cable structures to promote the gradual emergence of the structure of Yan in the form of flowers.From the brick building long-span structures, stone structures, a few meters of wood, steel structure to the development of tens of meters, a few hundred meters, until modern km above. So in the river, cross the bridge from shelves, on the ground since the construction of skyscrapers and high-rise tower, even in the laying of underground railway, to create an unprecedented miracle.In order to meet the needs of the development of steel works, on the basis of Newton's mechanics, material mechanics, structural mechanics, structural engineering design theory came into being, and so on. Construction machinery, construction technology and construction organization design theory also development, civil engineering from the experience of rising to become science, engineering practice and theoretical basis for both is a different place, which led to more rapid development of civil engineering. During the nineteenth century, 20, made of Portland cement, concrete has come out. Concrete can aggregate materials, easy-to-concrete structures forming, but the tensile strength of concrete is very small, limited use. By the middle of the nineteenth century, the surge in steel production, with the emergence of this new type of reinforced concrete composite construction materials, which bear the tension steel, concrete bear the pressure and play their own advantages. Since the beginning of the 20th century, reinforced concrete is widely used in various fields of civil engineering.From the beginning of the 1930s, there have been pre-stressed concrete. Pre-stressed concrete structure of the crack resistance, rigidity and carrying capacity, much higher than the reinforced concrete structure, which uses an even wider area. Civil Engineering into the reinforced concrete and prestressed concrete dominant historical period. Concreteengineering, civil engineering so that a new construction technology and engineering design of the structure of the theory. This is another leap in the development of civil engineering.A project to build the facilities in general to go through the investigation, design and construction in three stages, require the use of geological prospecting projects, hydro-geological survey, engineering survey, soil mechanics, mechanical engineering, engineering design, building materials, construction equipment, engineering machinery, building the economy , And other disciplines and construction technology, construction and other fields of knowledge, as well as computer and mechanical testing techniques. Civil engineering is therefore a broad range of integrated disciplines. With the progress in science and technology development and engineering practice, the civil engineering disciplines have also been developed into a broad connotation, the number of categories, the structure of complex integrated system.Civil Engineering is accompanied by the development of human society developed. It works in the construction of facilities reflect the various historical periods of socio-economic, cultural, scientific, technological development outlook, which civil society has become one of the historical development of the witness.In ancient times, people began to build simple houses, roads, bridges and still water channel to meet the simple life and production. Later, in order to adapt to the war, production and dissemination of religious life, as well as the needs of the construction of the city, canals, palaces, temples and other buildings.Many well-known works shown in this historical period of human creativity. For example, the Great Wall of China, Dujiangyan, the Grand Canal, Zhaozhou Bridge, Yingxian Wooden Tower, the pyramids of Egypt, Greece's Parthenon, Rome's water supply project,well-known churches, palaces and so on.After the industrial revolution, especially in the 20th century, on the one hand, civil society to put forward a new demand; On the other hand, all areas of society for the advancement of civil engineering to create good conditions. Thus this period of civil engineering has been advanced by leaps and bounds. All over the world there have been large-scale modernization of industrial plants, skyscrapers, nuclear power plants, highways and railways, long-span bridges, and large-diameter pipelines long tunnel, the Grand Canal, the big dams, airports, port and marine engineering, etc. . For civil engineering continually modern human society to create a new physical environment, human society, modern civilization has become an important part.Civil Engineering is a very practical subjects. In the early days, through the civil engineering practice, summing up successful experience, in particular, to draw lessons from the failure of developed. From the beginning of the 17th century, with Galileo and Newton as a pilot with the mechanics of the modern civil engineering practice, gradually formed the mechanical, structural mechanics, fluid mechanics, rock mechanics, civil engineering as the basis of theoretical subjects. This experience in civil engineering from the gradually developed into a science.In the course of the development of civil engineering, engineering practice often first experience in theory, engineering accidents often show a new unforeseen factors, triggering a new theory of the research and development. So far a number of projects dealing with the problem, is still very much rely on practical experience.Civil Engineering Technology with the main reason for the development of engineering practice and not by virtue of scientific experiments and theoretical studies, for two reasons: First, some of the objective situation is too complicated and difficult to faithfully carry outunderground engineering and deformation of the state and its changes over time, still need to refer to an analysis of engineering experience to judge. Second, only a new engineering practice in order to reveal new problems. For example, the construction of a high-rise buildings, high-rise tower and mast-span bridges, wind and earthquake engineering problems highlighted in order to develop this new theory and technology.In the long-term civil engineering practice, it is not only building great attention to the arts, has made outstanding achievements; and other works, but also through the choice of different materials, such as the use of stone, steel and reinforced concrete, with natural Environmental art in the construction of a number of very beautiful, very functional and good works. Ancient Great Wall of China, the modern world, many of the television tower and the bridge ramp Zhang, are cases in point.A building is closely bound up with people,for it provides with the necessary space to work and live in .As classified by their use ,buildings are mainly of two types :industrial buildings and civil buildings .industrial buildings are used by various factories or industrial production while civil buildings are those that are used by people for dwelling ,employment ,education and other social activities .Industrial buildings are factory buildings that are available for processing and manufacturing of various kinds ,in such fields as the mining industry ,the metallurgical industry ,machine building ,the chemical industry and the textile industry . factory buildings can be classified into two types single-story ones and multi-story ones .the construction of industrial buildings is the same as that of civil buildings .however ,industrial and civil buildings differ in the materials used and in the way they are used .Civil buildings are divided into two broad categories: residential buildings and publicthree necessary rooms : a living room ,a kitchen and a toilet .public buildings can be used in politics ,cultural activities ,administration work and other services ,such as schools, office buildings, parks ,hospitals ,shops ,stations ,theatres ,gymnasiums ,hotels ,exhibition halls ,bath pools ,and so on .all of them have different functions ,which in turn require different design types as well.Housing is the living quarters for human beings .the basic function of housing is to provide shelter from the elements ,but people today require much more that of their housing .a family moving into a new neighborhood will to know if the available housing meets its standards of safety ,health ,and comfort .a family will also ask how near the housing is to grain shops ,food markets ,schools ,stores ,the library ,a movie theater ,and the community center .In the mid-1960’s a most important value in housing was sufficient space both inside and out .a majority of families preferred single-family homes on about half an acre of land ,which would provide space for spare-time activities .in highly industrialized countries ,many families preferred to live as far out as possible from the center of a metropolitan area ,even if the wage earners had to travel some distance to their work .quite a large number of families preferred country housing to suburban housing because their chief aim was to get far away from noise ,crowding ,and confusion .the accessibility of public transportation had ceased to be a decisive factor in housing because most workers drove their cars to work .people we’re chiefly interested in the arrangement and size of rooms and the number of bedrooms .Before any of the building can begin ,plans have to be drawn to show what the building will be like ,the exact place in which it is to go and how everything is to be done.An important point in building design is the layout of rooms ,which should provide thedwelling house ,the layout may be considered under three categories : “day”, “night” ,and “services” .attention must be paid to the provision of easy communication between these areas .the “day “rooms generally include a dining-room ,sitting-room and kitchen ,but other rooms ,such as a study ,may be added ,and there may be a hall .the living-room ,which is generally the largest ,often serves as a dining-room ,too ,or the kitchen may have a dining alcove .the “night “rooms consist of the bedrooms .the “services “comprise the kitchen ,bathrooms ,larder ,and water-closets .the kitchen and larder connect the services with the day rooms .It is also essential to consider the question of outlook from the various rooms ,and those most in use should preferably face south as possible .it is ,however ,often very difficult to meet the optimum requirements ,both on account of the surroundings and the location of the roads .in resolving these complex problems ,it is also necessary to follow the local town-planning regulations which are concerned with public amenities ,density of population ,height of buildings ,proportion of green space to dwellings ,building lines ,the general appearance of new properties in relation to the neighbourhood ,and so on . There is little standardization in industrial buildings although such buildings still need to comply with local town-planning regulations .the modern trend is towards light ,airy factory buildings .generally of reinforced concrete or metal construction ,a factory can be given a “shed ”type ridge roof ,incorporating windows facing north so as to give evenly distributed natural lighting without sun-glare .。
土木工程外文参考文献
ÃCorresponding author.Tel.:+86-411-8470-8512x8208;fax:+86-411-8470-8501.E-mail address:hnli@(H.-N.Li).0141-0296/$-see front matter#2004Elsevier Ltd.All rights reserved. doi:10.1016/j.engstruct.2004.05.018not only the structural status,for instance stress, displacement,acceleration etc.,but also influential environmental parameters,such as wind speed,tem-perature and the quality ofits f oundation.Since a large number ofsensors will be involved in a health monitor-ing system,the acquisition,transmission and storage of a large quantity ofdata f or such continuous monitor-ing is a challenging task.For instance,raw data are acquired at a rate of63.46MB per hour f or the TsingMa and Kap Shui Mun Bridges and55.87MB per hour for TingKau Bridge[3].Therefore,many wireless[4,5],GPS[6]or GIS[7]based data acqui-sition,transmission methods and data archival and management architectures[8]were proposed to deal with this problem.Though it is very important to embed sensors and collect data successfully for a health monitoring application,thefinal step is to interpret correctly the data from various types of sensors to reach critical decisions regarding the load capacity,sys-tem reliability,i.e.the health status ofthe structure[9]. At this crucial step,prognostic and diagnostic algo-rithms based on modal analysis,pattern recognition and time series analysis are among the most effective methods to detect the presence,location,magnitude, and extent ofstructural f aults[10].Moreover,the information analyzed should be user friendly to improve operation and maintenance management deci-sions.Another crucial function of SHM is the ability to alert ongoing dangers or future accidents in advance. Though it is not a simple task to realize fully such an appealing scenario,several projects had been under-taken to implement partially SHM systems from research laboratories tofield applications.TsingMa, Kap Shui Mun,and TingKau bridges,connecting Hong Kong and its new airport,are the most note-worthy bridges being heavily instrumented for health monitoring.Wind load is a major concern ofthese bridges as well as temperature,traffic load,geometric configuration,strain,and global dynamic character-istics.Among the786permanently installed sensors in TsingMa Bridge,anemometers,temperature,strain and accelerometer sensors comprise a major portion.Moni-toring results are satisfactory and have verified design performance[11].Similar sensors were also used in the health monitoring system ofthe Akashi Kaikyo Bridge in Japan.The transversal displacement of5.17m monitored in September1998agreed well with numeri-cal modore Barry Bridge and Benicia-Martinez bridge ofthe US are equally important examples ofSHM[12].In Commodore Barry Bridge, real-time images and data from nearly500channels combined with itsfinite element model are used for maintenance and management ofthe bridge to the maximum benefit.Other significant efforts in imple-menting health monitoring systems include bridges in Korea,Canada,India and Colombia[13].Most ofthe conventional sensors used in the above mentioned health monitoring applications are based on transmission ofelectric signals.Their limitations are becoming more and more manifest.These sensors are usually not small or durable enough to be embedded in a structure to measure interior properties.They are local(or point)sensors,which are restricted to measure only parameters at one location and cannot be easily multiplexed.The long lead lines also pose problems for large civil structures,which often span several or tens ofkilometers.In some cases,the signals could not be discriminated from noise because of electrical or mag-netic interference(EMI).In addition,various demodu-lation techniques are required for different sensors. They all add in increasing the inconveniences ofcon-ventional sensors in SHM.Fiber optic sensors(FOSs) are promising sensing alternatives in civil SHM systems and future smart structures.They exhibit several advantages such as,flexibility,embeddability,multi-plexity and EMI immunity[14],as compared with traditional sensors.The past20years have witnessed an intense international research in thefield ofoptical fiber sensing.In the following sections,we will describe this enabling technology and review its health monitor-ing applications to civil engineering.2.Threefiber optic sensors for structural health monitoringThefirstfiber optic sensor,a closed-loopfiber gyro, was invented to replace mechanical spinning gyros on the Delta Rocket in1978[15].Conception ofsuch FOSs originated fromfiber optic communications. Opticalfiber experiences geometrical(size and shape) and optical(refractive index and mode conversion) changes due to various environmental perturbations while conveying light from one place to another.These phenomena perplexed efforts to minimize such adverse influences so that signal transmission is smooth and reliable.However,it is found that such optical changes can be employed to measure the external environment parameters.Opticfiber thus found its niche in sensor applications.Investigations showed that the sensitive perturbations in temperature,strain,rotation,electric and magnetic currents,etc.,can be converted or enco-ded into corresponding changes,such as amplitude (intensity),phase,frequency,wavelength and polariza-tion in the optical properties ofthe transmitted light. These changes can be eventually detected by appropri-ate demodulation systems[16,17].With rapid advances in communication and start ofmass production offiber optic cables,fiber optic sensing is growing to be a pros-perous industry,benefiting from the decreasingfiber prices.Many techniques have been devised to provide solutions to measure a broad range ofphysical and1648H.-N.Li et al./Engineering Structures26(2004)1647–1657chemical parameters.As a consequence,fiber optic based measurement systems have made the transition from research laboratories to practical engineering applications,and have found wide applications in aero-space,composites,medicine,chemical products,con-crete structures,and in the electrical power industry. The market volume ofFOSs is hypothesized to rise from US$305millions in1997to this year’s US$550 millions[18],among which temperature,strain and pressure sensors account for about40%of the total FOS products[19].Extensive efforts are now engaged to realize economic FOSs and associated interrogation systems and to explore wider engineering applications. Opticalfibers,which usually consist ofthree layers:fiber core,cladding and jacket,are dielectric devices used to confine and guide light.The majority ofoptical fibers used in sensing applications have silica glass cores and claddings,and the refractive index of the cladding is lower than that ofthe core to satisf y the condition ofSnell’s law f or total internal reflection and thus confine the propagation ofthe light along thefiber core only.The outer layer ofa FOS,called jacket,is usually made ofplastic to provide thefiber with appro-priate mechanical strength and protect it from damage or moisture absorption.In some sensing applications,a specialized jacket is required to enhance thefiber’s measurement sensitivity and to accommodate the host structure.In general,an FOS is characterized by its high sensi-tivity when compared to other types ofsensors.It is also passive in nature due to its dielectric construction. Specially preparedfibers can withstand high tempera-ture and other harsh environments.In telemetry and remote sensing applications,it is possible to use a seg-ment ofthefiber as a sensor gauge and a long length ofthe same or anotherfiber to convey the sensed inf or-mation to a remote station.Deployment ofdistributed and array sensors covering extensive structures and geographical locations is also feasible.With many sig-nal processing devices(splitter,combiner,multiplexer,filter,delay line,etc.)being made offiber elements,an all-fiber measuring system can be realized.Table1lists the FOSs available to civil engineering applications and their categories.One method of classifying FOSs is based on its light characteristics (intensity,wavelength,phase,or polarization)that is affected by the parameter to be sensed.Another method classifies an FOS by whether the light in the sensing segment is modified inside or outside thefiber (intrinsic or extrinsic).FOSs can also be classified as local(or point),quasi-distributed and distributed sen-sors depending on the sensing range.This method of classification is adopted here to organize the rest ofthis section.2.1.Localfiber optic sensorsMany intensity based sensors,such as microbend sensors,and most ofthe interf erometric FOSs are local sensors,which can measure changes at specified local points in a structure.Interferometric FOSs are by far the most commonly used local sensors since they offer the best sensitivity.This sensing technique is based primarily on detecting the optical phase change induced in the light as it propagates along the optical fiber.Light from a source is equally divided into two fiber-guided paths(one is a reference path).The beams are then recombined to mix coherently and form a ‘‘fringe pattern’’which is directly related to the optical phase difference experienced between the two optical beams.The most common configurations ofsuch inter-ferometric sensors are the Mach-Zehnder,Michelson and Fabry–Perot FOSs[20,21].Among them,the Fabry–Perot(F-P cavity)FOS and the so-called long gage FOS(LG FOSs)are the two types oflocal sensors commonly utilized in civil engineering.Fabry–PerotTable1Fiber optic sensors for civil structural health monitoringSensors Mesurands Linearresponse Resolution Range ModulationmethodIntrinsic/extrinsicLocal Fabry–Perot Strain a Y0.01%gage length c10,000le Phase Both Long gage sensor Displacement Y0.2%gage length d50m Phase Intrinsic Quasi-distributedFibre Bragg grating Strain b Y1l strain5000le Wavelength IntrinsicDistributed Raman/Rayleigh(OTDR)Temperature/strain N0.5m/1v C2000m e Intensity IntrinsicBrillouin(BOTDR)Temperature/strain N0.5m/1v C2000m Intensity Intrinsica Can be configured to measure displacement,pressure,temperature.b Can be configured to measure displacement,acceleration,pressure,relativefissure and inclination,etc.c Resolution as high as0.1l strain.d Resolution as high as0.2l strain.e Up to25km with spatial resolution of5m.H.-N.Li et al./Engineering Structures26(2004)1647–16571649FOSs,which can provide absolute Fabry–Perot cavity length measurements with superior accuracy(Fig.1), are based on white-light cross-correlation principle.In addition to its strain-sensing ability,an F-P sensor can also measure pressure,displacement and temperature with different configurations.LGFOSs are based on two low-coherent double Michelson interferometers (Fig.2).Both sensors measure the average strain between twofixed points along the gage with optional temperature compensation.The length ofthe long gage sensors ranges from0.2to50m.2.2.Quasi-distributed sensorsFiber Bragg grating(FBG)sensor,which can be easily multiplexed to measure strains at many loca-tions,is a kind oftypical quasi-distributed sensor.A Bragg grating is a permanent periodic modulation of the refractive index in the core of a single mode optical fiber.The change ofthe core ref raction index is between10À5and10À3,and the length ofa Bragg grat-ing is usually around10mm,which is much shorter than that ofa long period grating(LPG)[22].This technology originated from the discovery of photo-sensitivity ofgermanium doped silica by Hill et al.[23] ter Meltz et al.[24]devised a more efficient transverse holographic method,which enormously increased the scope ofFBG s’applications.Now the phase mask technique supersedes the above two meth-ods and is commonly used to form commercially the in-core gratings[25].Techniques such as hydrogen loading andflame brushing can be adopted to enhance the germanium doped single mode opticalfiber’s pho-tosensitivity prior to laser irradiation[26].The principle ofan FBG is described as f ollows: When light within afiber impinges upon Bragg grat-ings,constructive interference between the forward wave and the contra-propagating light wave leads to narrowband back-reflection oflight when the Bragg(or phase match)condition is satisfied(Fig.3).Because of this,afiber Bragg gating can serve as an intrinsic sensor.Any local strain or temperature changes alter the index of core refraction and the grating period,fol-lowed by changes in wavelength ofthe reflected light. Wavelength changes can be detected by an interrog-ator,which employs edgefilters,tunable narrowband filters,or CCD spectrometers[27,28].Tunable narrow-bandfilters are commercially popular interrogation sys-tems.Fig.3shows the wavelength multiplexing schemes,principles and wavelength shifts of FBG sen-sors.There are several major concerns in selecting FBGs and the associated interrogation systems.For instance,spectral overlap ofthe gratings changes adjac-ent desirable wavelength[29].For another instance, sidebands in the measured wavelength,the interrog-ationfilter and the tunable light source also introduce errors in the system.Despite these concerns,FBG sensors have a unique property over other FOSs in that they encode the wavelength,which is an absolute parameter and does not suffer from disturbances of the light paths.FBG sensors could be particularly useful when gratings with different periods are arranged along an opticalfiber. Each ofthe reflected signals will have a unique wave-length and can be easily monitored,thus achieving multiplexing ofthe outputs ofmultiple sensors using a singlefiber(Fig.3).Currently,up to64FBGs can be theoretically wavelength-multiplexed in onefiber,per-mitting quasi-distributive measurement ofstrain.FBG sensors are preferred in many civil engineering applica-tions and have been successfully employed in several full-scale structures requiring multiple-point sensing distributed over a long range.2.3.Distributedfiber optic sensorsDistributed sensors are most suitable for large struc-tural applications,since all the segments ofan optical fiber act as sensors,and therefore,the perturbations within various segments ofthe structure can be sensed. Distributed sensors are based on the modulation of light intensity in thefiber.Fracture losses or local damages in a structure cause light intensity variations. Two major distributed sensor methodologies are the optical time domain reflectometry(OTDR)and the Brillouin scattering.In the OTDR,Rayleigh and Fresnel scatterings are used for sensingstructuralperturbations.On the other hand,Brillouin scattering detects the Doppler shift in light frequency which is related to the measurements.Distributed sensors have not found widespread usage in civil structural applica-tions.The main reasons are their insufficient resolu-tions,weak detectable signals,and cumbersome demodulation systems.However,they have a great potential in civil engineering due to their inherent distributive nature.3.Recent progress of FOS health monitoring in civil engineeringFOSs offer great potential for SHM applications.Their significance to health monitoring applications stems from the following facts:(1)Long life cycle.They are made from a very durable material (i.e.silica)that is corrosion resistant and withstands high tensile loading (up to 5%elongation,i.e.50,000le );(2)High temperature endurance.They can measure temperaturefrom À200to 800v C with a silica core and 1500vC with a sapphire core.The measuring resolution can bebetter than 0.1vC;(3)Flexibility.They can be applied to complex surfaces and difficult-to-reach areas(i.e.around the circumference of a round object,along sharp corners or across welds),capable ofboth local and distributive measurements (ranging from 1mm to tens ofkilometers);(4)Immunity to EMI.They can operate in electrically noisy environments and can transfer sensing data over a long distance without EMI contamination;(5)Electrical isolation.They are non-conductive and suitable for embedment with minimum impact to the host structure;(6)Quasi-distributed or distributed sensing capacity.They can perform in-situ sensing at multiple locations required by health moni-toring oflarge civil structures and can be easily multi-plexed by time or wavelength methods;(7)Economy.They are already cost-competitive against conventional sensors and their prices will still decrease with the rapid development offiber optic communication industry and wide exploration ofFOSs.Integration of FOSs with civil infrastructure for SHM is an active research field.While the benefits of long term structural monitoring are yet to be fully realized,several applications have been demonstrated to date.In these applications,optical time domain reflectometry,Bragg gratings,Fabry–Perot and the LGFOSs have effectively complemented orevenFig.3.Multiplexing schemes,principles and wavelength shift of fiber Bragg grating sensors.H.-N.Li et al./Engineering Structures 26(2004)1647–16571651replaced some sensors.The rest ofthis section will review these demonstrations.3.1.BuildingsFOSs have been successfully applied to buildings for strain and temperature measurement.Early in2001, four long gage Bragg grating sensors were installed across,above and under the primary arch ofthe Cathedral ofComo in Northern Italy to identif y any significant structural deterioration to protect this sig-nificant cultural heritage built in1396[30].These four sensors were installed using surface mounting brackets. The sensor installed across the arch had a total gauge length of7m with a spring mechanism and the rest all have a gauge length of100mm.Each sensor has two serially connected Bragg gratings.One grating measures strain,while the other monitors temperature. Displacement resolution of0.1l m and temperature resolution of0.1v C were achieved with the technique offiber Fabry–Perot tunablefilter demodulation sys-tem.The eight-month period measurement showed that the temperature was consistent with seasonal variation and the displacements were not substantial.Along with the high resolution ofFOSs,the advantage ofembedd-ability is often exploited in health monitoring. Recently,in Japan,64FBG sensors were embedded in a12-floor steel frame building with the damage toler-ance construction technique,which employs dampers to absorb seismic energy[31].These embedded sensors can measure relative displacements,strains,and tem-peratures.They were multiplexed in six single optical fibers to monitor the performance of these dampers.In addition to the applications oflocal and quasi-distributed monitoring systems,well distributedfiber optic sensing also became a reality.In Korea,a single mode opticalfiber of1400m was bonded on the surfaces of a4-storey building to monitor temperature distribution.The optical signals were demodulated by the stimulated Brillouin optical time domain reflec-tometry(BOTDR).Continuous monitoring results showed that the temperature distribution at night generallyfluctuated less than that at noon and the temperature normally changed up to4v C in one day[32]. One challenge in the application ofFOS in building monitoring is to measure the tip displacement oftall buildings.This parameter is necessary to evaluate the safety of a building,but difficult or expensive to measure by traditional sensors.3.2.PilesPiles are very important to support structures and protect buildings from shocks or earthquakes.In December2001,30FBG sensors were multiplexed into six opticalfiber arrays for driving test monitoring of two composite marine piles[33].Among them,four arrays consisting ofsix FBG s along the pile were used to monitor the strains and two arrays consisted of three FBGs were used to monitor the temperatures. The FBG sensors were interrogated by an unit using fiber Fabry–Perot tunablefilter technology.The piles tested are60-ft long with a diameter of two ft.A three-point bending test was performed to ensure the survi-vability ofal the FBG s and the insensitivity ofthe FBG temperature sensors to mechanical strain.Then, driving tests were conducted and real-time monitoring showed that apparent bending existed in the pile. Although the survivability ofFBG s in pile driving was verified,thefiber lead ofa strain-sensing array was broken and the readings ofthe FBG temperature sen-sor suffered from strain cross-sensitivity.Similar pile drivings were conducted to test the foun-dation ofa new f actory,which requires a highly stable base,in the Tainan Scientific Park,Taiwan[34].All the six tested piles had the same dimension with a diameter of1.2m and a length of35m.Nine4-m LG FOSs were utilized in the compression and pullout tests ofa pile to measure the strain and load eccentricity.Sixteen4-m LGFOSs were installed in parallel on the opposite side ofa pile to monitor the average curvature,which were used later to compute the horizontal displacement by double integration.From the above tests,Young’s modulus,longitudinal strain,vertical displacement and force in the piles were measured.In addition,proper-ties ofsoil,critical strain when crack occurs in the pile, ultimate load capacity ofa pile,and f ailure mode in the interface of soil and pile were also measured.The sensors and demodulation system were provided by Smartec SA.3.3.BridgesBridges,especially concrete bridges,are the most monitored civil structures by FOSs.Intelligent Sensing for Innovative Structures(ISIS,Canada)has equipped up to six bridges withfiber optic sensing systems that allow remote monitoring since1993[35].In its first instrumented bridge,Beddington Trail Bridge (Alberta),18out ofthe20FBG sensors,which were originally installed,are still functioning afterfive years ofoperation.Atfirst,these FBG sensors,demodulated by a grating-fiber/laser system in conjunction with a Burleigh Jr.wavemeter with a resolution ofonly about Æ40le,were used to monitor the stress relaxation in the steel and the carbonfiber reinforced polymer (CFRP)tendons.Then by a more advancedfiber optic grating indicator(FLS3500RTM),a strain resolution of1le was achieved and dynamic responses ofa low speed truck could be measured to estimate roughly the weight ofthe truck and its driving direction[36]. Among the six bridges,the Taylor Bridge(Manitoba)1652H.-N.Li et al./Engineering Structures26(2004)1647–1657was fully instrumented.The CFRP girders of the Taylor Bridge were attached to63FBG sensors and two multi-Bragg sensors,which were close to the26 conventional strain gages for comparison.The FBG sensors at the mid-span,demodulated by a32-channel fiber optic grating indicator(FLS3500R),were to measure the maximum strain,while the sensors at the girder ends were designed to monitor the transfer length ofpre-stressing tendons.Sixty percent ofthe properly sealed strain gages malfunctioned due to excessive moisture resulting from steam curing process, while the FOSs were not affected and all survived.This demonstrates again the FOSs’compatibility with concrete and its potential as preferred sensors in SHM. In Taylor Bridge’s remote monitoring system,the online strain or temperature data can be accessed in the engineer’s office by logging onto the acquisition computer at the bridge site through a modem and a phone line[37].Therefore,the conditions of the bridge can be continuously monitored in a remote office using a desktop computer.The other four bridges integrated with FOSs are the Crowchild Trail Bridge(Alberta), the Salmon River Bridge(Nova Scotia),the Joffre Bridge(Quebec)and the Confederation Bridge(Prince Edward Island/New Brunswick).In these bridges,all the installed FOSs performed well.In Switzerland,the Siggenthal Bridge with an arch span of117m was built over the Limmart River in Baden in2000.Fifty-eight LGFOSs,whose gage length ranges from3to5m,were embedded in pairs near the top and bottom surfaces of the concrete arch slab dur-ing construction.Each pair consisted oftwo identical sensors and were installed parallel to the arch length to monitor the deformations of arch segments.From the measured deformation of each arch segment,concrete deformations,the curvatures in the vertical plane and perpendicular displacements ofthe whole concrete arch during both the construction and in-service period were determined.A portable reading unit(SOFO)was inter-mittently set near the arch feet of the bridge to check the LGFOSs.Preliminary monitoring results showed that the daily temperaturefluctuation during summer had particularly large influence on the arch and should be taken into consideration during the bridge design phase[38].Also in Switzerland,the Versoix Bridge was equipped with104such LGFOSs to monitor long term deformations of the bridge.The Viaduc des Vaux Bridge is another bridge that has been monitored by FOSs[39].A total of12FBG sensors were attached to the interior walls ofa section ofa box-girder at the push and pull stage during the construction period,and the primary goal was to mea-sure the resulting strain on the box-girder web due to transverse loads induced by the pier during the launch. The data obtained not only indicated that design toler-ances were not exceeded but also provided useful records ofunique diagnostic events such as the curva-ture defects present in the sliding shoe device. Although FOSs have been embedded or attached to many concrete bridges,steel structures equipped with FOSs are not so common.This may be is attributed to the fact that it is almost impossible to embed an FOS in a steel structure element.Surface-bonding,at present,is the only way to integrate an FOS with a steel structure, and the benefits ofutilizing FOSs in such situations are not evident.The Waterbury Bridge in Vermont,the US, is such an example[40].This bridge is a67m steel truss bridge spanning the Winooski River.Thirty-six chloride FOSs were embedded at various points along the bridge to monitor the chloride penetration into the deck.The chloride sensor is based on the interaction between the chloride ions and a sol–gelfilm,which is positioned between the input–outputfiber.Thefilm’s transmission characteristics changes in terms ofcolor(f rom milky white to pink);thus overallfiber’s transmission change and chloride ion’s concentration are determined. Another16FBG strain sensors were placed at points of the reinforcement bars with maximum strains to moni-tor the strain variations.Their efforts showed that instrumentation ofFOSs may cost up to10%higher in certain cases.3.4.Highway traffic monitoringAlthough FOSs embedded in the Beddington Trail Bridge is intended for long term SHM and therefore employ low rate data sampling system,they can still weigh vehicles running slowly.However,these FOSs are inadequate for traffic monitoring,such as classify-ing vehicles,on a regular highway without traffic inter-ruption since the FOSs used for such purposes demand a high-sampling-rate data acquisition system in addition to high measuring sensitivity[41].A traffic sensor is basically a sensor embedded on the surface of a road to detect trafficflow.The dynamic testing system developed by Udd et al.can achieve less than0.1micro-strain resolution with a dynamic range of400micro-strain at10kHz sampling rate,which can satisfy such traffic monitoring requirements.They installed28specially designed FBG traffic sensors(26 survived)in surface-cut slots of the Horsetail Falls Bridge in the Colombia River Gorge National Scenic Area ofthe United States[42],and tested the monitor-ing system by running vehicles ofdifferent weights at a speed of10–18km per hour.Then,five long gage FBG sensors were installed in the I-84freeway to test the ability ofthese sensors as vehicle classifier and counter [43].Over halfa year’s monitoring showed that the sensing systems are sufficient to discriminate tractor–trailer and buses,and even the traffic in adjacent lanes in some cases.The amplitude ofthe signal appears to be closely proportional to the vehicle weight,the speedH.-N.Li et al./Engineering Structures26(2004)1647–16571653。
土木工程英语文献原文
Civil engineering introduction papersAbstract: the civil engineering is a huge discipline, but the main one is building, building whether in China or abroad, has a long history, long-term development process. The world is changing every day, but the building also along with the progress of science and development. Mechanics findings, material of update, ever more scientific technology into the building.But before a room with a tile to cover the top of the house, now for comfort, different ideas, different scientific, promoted the development of civil engineering, making it more perfect.[key words] : civil engineering; Architecture; Mechanics, Materials.Civil engineering is build various projects collectively. It was meant to be and "military project" corresponding. In English the history of Civil Engineering, mechanical Engineering, electrical Engineering, chemical Engineering belong to to Engineering, because they all have MinYongXing. Later, as the project development of science and technology, mechanical, electrical, chemical has gradually formed independent scientific, to Engineering became Civil Engineering of specialized nouns. So far, in English, to Engineering include water conservancy project, port Engineering, While in our country, water conservancy projects and port projects also become very close and civil engineering relatively independent branch. Civil engineering construction of object, both refers to that built on the ground, underground water engineering facilities, also refers to applied materials equipment and conduct of the investigation, design and construction, maintenance, repair and other professional technology.Civil engineering is a kind of with people's food, clothing, shelter and transportation has close relation of the project. Among them with "live" relationship is directly. Because, to solve the "live" problem must build various types of buildings. To solve the "line, food and clothes" problem both direct side, but also a indirect side. "Line", must build railways, roads, Bridges, "Feed", must be well drilling water, water conservancy, farm irrigation, drainage water supply for the city, that is direct relation. Indirectly relationship is no matter what you do, manufacturing cars, ships, or spinning and weaving, clothing, or even production steel, launch satellites, conducting scientific research activities are inseparable from build various buildings, structures and build all kinds of project facilities.Civil engineering with the progress of human society and development, yet has evolved into large-scale comprehensive discipline, it has out many branch, such as: architectural engineering, the railway engineering, road engineering, bridge engineering, special engineering structure, waterand wastewater engineering, port engineering, hydraulic engineering, environment engineering disciplines. [1]Civil engineering as an important basic disciplines, and has its important attributes of: integrated, sociality, practicality, unity. Civil engineering for the development of national economy and the improvement of people's life provides an important material and technical basis, for many industrial invigoration played a role in promoting, engineering construction is the formation of a fixed asset basic production process, therefore, construction and real estate become in many countries and regions, economic powerhouses.Construction project is housing planning, survey, design, construction of the floorboard. Purpose is for human life and production provide places.Houses will be like a man, it's like a man's life planning environment is responsible by the planners, Its layout and artistic processing, corresponding to the body shape looks and temperament, is responsible by the architect, Its structure is like a person's bones and life expectancy, the structural engineer is responsible, Its water, heating ventilation and electrical facilities such as the human organ and the nerve, is by the equipment engineer is responsible for. Also like nature intact shaped like people, in the city I district planning based on build houses, and is the construction unit, reconnaissance unit, design unit of various design engineers and construction units comprehensive coordination and cooperation process.After all, but is structural stress body reaction force and the internal stress and how external force balance. Building to tackle, also must solve the problem is mechanical problems. We have to solve the problem of discipline called architectural mechanics. Architectural mechanics have can be divided into: statics, material mechanics and structural mechanics three mechanical system. Architectural mechanics is discussion and research building structure and component in load and other factors affecting the working condition of, also is the building of intensity, stiffness and stability. In load, bear load and load of structure and component can cause the surrounding objects in their function, and the object itself by the load effect and deformation, and there is the possibility of damage, but the structure itself has certain resistance to deformation and destruction of competence, and the bearing capacity of the structure size is and component of materials, cross section, and the structural properties of geometry size, working conditions and structure circumstance relevant. While these relationships can be improved by mechanics formula solved through calculation.Building materials in building and has a pivotal role. Building material is with human society productivity and science and technologyimproves gradually developed. In ancient times, the human lives, the line USES is the rocks andTrees. The 4th century BC, 12 ~ has created a tile and brick, humans are only useful synthetic materials made of housing. The 17th century had cast iron and ShouTie later, until the eighteenth century had Portland cement, just make later reinforced concrete engineering get vigorous development. Now all sorts of high-strength structural materials, new decoration materials and waterproof material development, criterion and 20th century since mid organic polymer materials in civil engineering are closely related to the widely application. In all materials, the most main and most popular is steel, concrete, lumber, masonry. In recent years, by using two kinds of material advantage, will make them together, the combination of structure was developed. Now, architecture, engineering quality fit and unfit quality usually adopted materials quality, performance and using reasonable or not have direct connection, in meet the same technical indicators and quality requirements, under the precondition of choice of different material is different, use method of engineering cost has direct impact.In construction process, building construction is and architectural mechanics, building materials also important links. Construction is to the mind of the designer, intention and idea into realistic process, from the ancient holeJuChao place to now skyscrapers, from rural to urban country road elevated road all need through "construction" means. A construction project, including many jobs such as dredging engineering, deep foundation pit bracing engineering, foundation engineering, reinforced concrete structure engineering, structural lifting project, waterproofing, decorate projects, each type of project has its own rules, all need according to different construction object and construction environment conditions using relevant construction technology, in work-site.whenever while, need and the relevant hydropower and other equipment composition of a whole, each project between reasonable organizing and coordination, better play investment benefit. Civil engineering construction in the benefit, while also issued by the state in strict accordance with the relevant construction technology standard, thus further enhance China's construction level to ensure construction quality, reduce the cost for the project.Reference:[1] LuoFuWu editor. Civil engineering (professional). Introduction to wuhan. Wuhan university of technology press. 2007[2] WangFuChuan, palace rice expensive editor. Construction engineering materials. Beijing. Science and technology literature press. 2002[3] jiang see whales, zhiming editor. Civil engineering introduction of higher education press. Beijing.. 1992。
土木工程中结构设计与施工技术相关英文参考文献
土木工程中结构设计与施工技术相关英文参考文献全文共四篇示例,供读者参考第一篇示例:3. "Construction Planning, Equipment, and Methods" by Robert L. Peurifoy, Clifford J. Schexnayder, and Aviad ShapiraConstruction is a complex and dynamic process that requires careful planning and coordination of resources. This book provides a comprehensive overview of construction planning, equipment, and methods, and covers topics such as project management, scheduling, and cost estimation.第二篇示例:Title: Literature Review on Structural Design and Construction Technology in Civil EngineeringIntroductionCivil engineering is a broad field that encompasses various aspects of infrastructure development, including the design and construction of buildings, bridges, roads, and other structures. One key aspect of civil engineering is structural design, which involves the analysis and planning of a structure to ensure itssafety, durability, and functionality. In addition to design, the construction technology used to build the structure also plays a crucial role in its overall performance and longevity. In this literature review, we will explore some key references related to structural design and construction technology in civil engineering.Structural Design References第三篇示例:IntroductionStructural design and construction technology are essential components of civil engineering, providing the framework for building safe and durable structures. This article will explore several key references related to structural design and construction technology in civil engineering.第四篇示例:土木工程中结构设计与施工技术是土木工程领域中非常重要的一个方面。
土木概论的参考文献
土木概论的参考文献土木工程是工程学中的一个重要分支,研究的是土地和建筑物的设计、建设和维护。
本文将介绍一些关于土木工程方面的重要参考文献,以帮助读者深入了解这个领域。
1. "Principles of Foundation Engineering" by Braja M. Das这本经典教材是基础工程学中的权威教材之一。
它详细介绍了土壤力学和地基设计的原理和方法。
作者通过丰富的图表和实际案例,向读者提供了解决复杂基础工程问题的工具和知识。
2. "Structural Analysis" by R.C. Hibbeler这本教材是结构工程学的经典之作,涵盖了结构分析的各个方面。
它以清晰简明的语言介绍了不同类型结构的分析方法,包括梁、柱、框架和悬挂结构。
该书还包含了大量的实例和练习题,帮助读者巩固理论知识并应用于实践中。
3. "Construction Methods and Management" by S.W. Nunnally这本教材详细介绍了建筑施工的方法和管理。
作者通过系统性的讲解,向读者展示了不同类型建筑项目的施工流程和管理技术。
该书还包括实例和案例研究,帮助读者了解施工行业的最新趋势和挑战。
4. "Geotechnical Engineering: Principles and Practices" by Donald P. Coduto这本教材是土力学领域的经典之作。
它涵盖了岩土工程的各个方面,包括土体力学、土壤力学和地基设计。
作者通过理论和实践结合的方式,向读者介绍了解决复杂地质工程问题的方法和策略。
5. "Transportation Engineering: An Introduction" by C.JotinKhisty and B.Kent Lall这本教材全面介绍了交通工程学的基本原理和应用。
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Introduction to Civil Engineering PapersCivil Engineering for the development of a key role, first as a material foundation for the civil engineering construction materials, followed by the subsequent development of the design theory and construction technology. Every time a new quality of building materials, civil engineering will be a leap-style development.People can only rely on the early earth, wood and other natural materials in the construction activities, and later appeared in brick and tile that artificial materials, so that the first human to break the shackles of natural building materials. China in the eleventh century BC in the early Western Zhou Dynasty created the tile. The first brick in the fifth century BC to the third century BC, when the tomb of the Warring States Period. Brick and tile better than the mechanical properties of soil, materials, and easy to manufacture. The brick and tile so that people began to appear widely, to a large number of housing construction and urban flood control project, and so on. This civil engineering technology has been rapid development. Up to 18 to the 19th century, as long as two thousand years, brick and tile has been a major civil engineering construction materials, human civilization has made a great contribution to the even was also widely used in the present.The application of a large number of steel products is the second leap in civil engineering. Seventeen 1970s the use of pig iron, the early nineteenth century, the use of wrought iron bridges and the construction of housing, which is a prelude to the emergence of steel. From the beginning of the mid-nineteenth century, metallurgical industry, smelting and rolling out high tensile and compressive strength, ductility, uniformity of the quality of construction steel and then produce high-strength steel wire, steel cables. As a result of the need to adapt to the development of the steel structure have been flourishing. In addition to the application of the original beam, arch structure, the new truss, a framework, the structure of network, cable structures to promote the gradual emergence of the structure of Yan in the form of flowers.From the brick building long-span structures, stone structures, a few meters of wood, steel structure to the development of tens of meters, a few hundred meters, until modern km above. So in the river, cross the bridge from shelves, on the ground since the construction of skyscrapers and high-rise tower, even in the laying of underground railway, to create an unprecedented miracle.In order to meet the needs of the development of steel works, on the basis of Newton's mechanics, material mechanics, structural mechanics, structural engineering design theory came into being, and so on. Construction machinery, construction technology and construction organization design theory also development, civil engineering from the experience of rising to become science, engineering practice and theoretical basis for both is a different place, which led to more rapid development of civil engineering. During the nineteenth century, 20, made of Portland cement, concrete has come out. Concrete can aggregate materials, easy-to-concrete structures forming, but the tensile strength of concrete is very small, limited use. By the middle of the nineteenth century, the surge in steel production, with the emergence of this new type of reinforced concrete composite construction materials, which bear the tension steel, concrete bear the pressure and play their own advantages. Since the beginning of the 20th century,reinforced concrete is widely used in various fields of civil engineering.From the beginning of the 1930s, there have been pre-stressed concrete. Pre-stressed concrete structure of the crack resistance, rigidity and carrying capacity, much higher than the reinforced concrete structure, which uses an even wider area. Civil Engineering into the reinforced concrete and prestressed concrete dominant historical period. Concrete buildings to bring about the emergence of new economic, aesthetic structure in the form of engineering, civil engineering so that a new construction technology and engineering design of the structure of the theory. This is another leap in the development of civil engineering.A project to build the facilities in general to go through the investigation, design and construction in three stages, require the use of geological prospecting projects, hydro-geological survey, engineering survey, soil mechanics, mechanical engineering, engineering design, building materials, construction equipment, engineering machinery, building the economy , And other disciplines and construction technology, construction and other fields of knowledge, as well as computer and mechanical testing techniques. Civil engineering is therefore a broad range of integrated disciplines. With the progress in science and technology development and engineering practice, the civil engineering disciplines have also been developed into a broad connotation, the number of categories, the structure of complex integrated system.Civil Engineering is accompanied by the development of human society developed. It works in the construction of facilities reflect the various historical periods of socio-economic, cultural, scientific, technological development outlook, which civil society has become one of the historical development of the witness.In ancient times, people began to build simple houses, roads, bridges and still water channel to meet the simple life and production. Later, in order to adapt to the war, production and dissemination of religious life, as well as the needs of the construction of the city, canals, palaces, temples and other buildings.Many well-known works shown in this historical period of human creativity. For example, the Great Wall of China, Dujiangyan, the Grand Canal, Zhaozhou Bridge, Yingxian Wooden Tower, the pyramids of Egypt, Greece's Parthenon, Rome's water supply project, colosseum amphitheater (Rome large animal fighting Field), as well as many other well-known churches, palaces and so on.After the industrial revolution, especially in the 20th century, on the one hand, civil society to put forward a new demand; On the other hand, all areas of society for the advancement of civil engineering to create good conditions. Thus this period of civil engineering has been advanced by leaps and bounds. All over the world there have been large-scale modernization of industrial plants, skyscrapers, nuclear power plants, highways and railways, long-span bridges, and large-diameter pipelines long tunnel, the Grand Canal, the big dams, airports, port and marine engineering, etc. . For civil engineering continually modern human society to create a new physical environment, human society, modern civilization has become an important part.Civil Engineering is a very practical subjects. In the early days, through the civil engineering practice, summing up successful experience, in particular, to draw lessons from the failure of developed. From the beginning of the 17th century, with Galileo andNewton as a pilot with the mechanics of the modern civil engineering practice, gradually formed the mechanical, structural mechanics, fluid mechanics, rock mechanics, civil engineering as the basis of theoretical subjects. This experience in civil engineering from the gradually developed into a science.In the course of the development of civil engineering, engineering practice often first experience in theory, engineering accidents often show a new unforeseen factors, triggering a new theory of the research and development. So far a number of projects dealing with the problem, is still very much rely on practical experience.Civil Engineering Technology with the main reason for the development of engineering practice and not by virtue of scientific experiments and theoretical studies, for two reasons: First, some of the objective situation is too complicated and difficult to faithfully carry out laboratory or field testing and analysis. For example, the foundation, tunnel and underground engineering and deformation of the state and its changes over time, still need to refer to an analysis of engineering experience to judge. Second, only a new engineering practice in order to reveal new problems. For example, the construction of a high-rise buildings, high-rise tower and mast-span bridges, wind and earthquake engineering problems highlighted in order to develop this new theory and technology.In the long-term civil engineering practice, it is not only building great attention to the arts, has made outstanding achievements; and other works, but also through the choice of different materials, such as the use of stone, steel and reinforced concrete, with natural Environmental art in the construction of a number of very beautiful, very functional and good works. Ancient Great Wall of China, the modern world, many of the television tower and the bridge ramp Zhang, are cases in point.A building is closely bound up with people,for it provides with the necessary space to work and live in .As classified by their use ,buildings are mainly of two types :industrial buildings and civil buildings .industrial buildings are used by various factories or industrial production while civil buildings are those that are used by people for dwelling ,employment ,education and other social activities .Industrial buildings are factory buildings that are available for processing and manufacturing of various kinds ,in such fields as the mining industry ,the metallurgical industry ,machine building ,the chemical industry and the textile industry . factory buildings can be classified into two types single-story ones and multi-story ones .the construction of industrial buildings is the same as that of civil buildings .however ,industrial and civil buildings differ in the materials used and in the way they are used .Civil buildings are divided into two broad categories: residential buildings and public buildings .residential buildings should suit family life .each flat should consist of at least three necessary rooms : a living room ,a kitchen and a toilet .public buildings can be used in politics ,cultural activities ,administration work and other services ,such as schools, office buildings, parks ,hospitals ,shops ,stations ,theatres ,gymnasiums ,hotels ,exhibition halls ,bath pools ,and so on .all of them have different functions ,which in turn require different design types as well.Housing is the living quarters for human beings .the basic function of housing is to provide shelter from the elements ,but people today require much more that of theirhousing .a family moving into a new neighborhood will to know if the available housing meets its standards of safety ,health ,and comfort .a family will also ask how near the housing is to grain shops ,food markets ,schools ,stores ,the library ,a movie theater ,and the community center .In the mid-1960’s a most important value in housing was sufficient space both inside and out .a majority of families preferred single-family homes on about half an acre of land ,which would provide space for spare-time activities .in highly industrialized countries ,many families preferred to live as far out as possible from the center of a metropolitan area ,even if the wage earners had to travel some distance to their work .quite a large number of families preferred country housing to suburban housing because their chief aim was to get far away from noise ,crowding ,and confusion .the accessibility of public transportation had ceased to be a decisive factor in housing because most workers drove their cars to work .people we’re chiefly interested in the arrangement and size of rooms and the number of bedrooms .Before any of the building can begin ,plans have to be drawn to show what the building will be like ,the exact place in which it is to go and how everything is to be done.An important point in building design is the layout of rooms ,which should provide the greatest possible convenience in relation to the purposes for which they are intended .in a dwelling house ,the layout may be considered under three categories : “day”, “night” ,and “services” .attention must be paid to the provision of easy communication between these areas .the “day “rooms generally include a dining-room ,sitting-room and kitchen ,but other rooms ,such as a study ,may be added ,and there may be a hall .the living-room ,which is generally the largest ,often serves as a dining-room ,too ,or the kitchen may have a dining alcove .the “night “rooms consist of the bedrooms .the “services “comprise the kitchen ,bathrooms ,larder ,and water-closets .the kitchen and larder connect the services with the day rooms .It is also essential to consider the question of outlook from the various rooms ,and those most in use should preferably face south as possible .it is ,however ,often very difficult to meet the optimum requirements ,both on account of the surroundings and the location of the roads .in resolving these complex problems ,it is also necessary to follow the local town-planning regulations which are concerned with public amenities ,density of population ,height of buildings ,proportion of green space to dwellings ,building lines ,the general appearance of new properties in relation to the neighbourhood ,and so on . There is little standardization in industrial buildings although such buildings still need to comply with local town-planning regulations .the modern trend is towards light ,airy factory buildings .generally of reinforced concrete or metal construction ,a factory can be given a “shed ”type ridge roof ,incorporating windows facing north so as to give evenly distributed natural lighting without sun-glare .。