施工组织设计外文翻译
摘要：
建筑工程在施工过程中，施工组织方案的优劣不仅直接影响工程的质量，对工期及施工过程中的人员安全也有重要影响。施工组织是项目建设和指导工程施工的重要技术经济文件。能调节施工中人员、机器、原料、环境、工艺、设备、土建、安装、管理、生产等矛盾,要对施工组织设计进行监督和控制,才能科学合理的保证工程项目高质量、低成本、少耗能的完成。
关键词：
项目管理施工组织方案重要性
施工组织设计就是对工程建设项目整个施工过程的构思设想和具体安排，是施工组织管理工作的核心和灵魂。其目的是使工程速度快、质量好、效益高。使整个工程在施工中获得相对的最优效果。
1．编制施工组织设计重要性的原因
建筑工程及其施工具有固定性与流动性、多样性与单件性、形体庞大与施工周期长这三对特点。所以，每一建筑工程的施工都必须进行施工组织设计。这是因为：其它一般工业产品的生产都有着自己固定的、长期适用的工厂。而建筑施工具有流动性的特点，不可能建立这样的工厂，只能是当每一个建筑工程施工时，建立一个相应的、临时性的，如同工厂作用性质的施工现场准备，即工地。施工单件性特点与施工流动性特点，决定了每一建筑工程施工都要选择相应的机具和劳动力组织。选择施工方法、拟定施工技术方案及其劳动力组织和机具配置，统称为施工作业能力配置。施工周期的特点，决定了各种劳动力、机具和众多材料物资技术的供应时间也比较长，这就产生了与施工总进度计划相适应的物资技术的施工组织设计内容。由此可见，施工组织设计在项目管理中是相当重要的。 2．施工组织设计方案的重要性
建筑产品作为一种商品，在项目管理中工程质量在整个施工过程中起着极其重要的作用。工程建设项目的施工组织设计与其工程造价有着密切的关系。施工组织设计基本的内容有：工程概况和施工条件的分析、施工方案、施工工艺、施工进度计划、施工总平面图。还有经济分析和施工准备工作计划。其中,施工方案及施工工艺的确定更为重要,如:施工机械的选择、水平运输方法的选择、土方的施工方法及主体结构的施工方法和施工工艺的选择等等,均直接影响着工程预算价格的变化。在保证工程质量和满足业主使用要求及工期要求的前提下,优化施工方案及施工工艺是控制投资和降低工程项目造价的重要措施和手段。
2.1施工组织方案在很大程度上影响着工程质量，因此合理的施工组织方案不仅是确保工程顺利完成的基础，也是工程安全的依据。施工组织设计是建筑工
程设计文件的重要组成部分，是编制工程投资概预算的主要依据和编制招投标文件的主要参考依据。因此，认真做好施工组织设计，对于正确确定工程造价、降低工程投资，从而有利控制工程造价将有十分重要的作用。
2.2施工组织方案是对施工活动实行科学管理的重要手段，它具有战略部署和战术安排的双重作用。它体现了实现基本建设计划和设计的要求，提供了各阶段的施工准备工作内容，协调施工过程中各施工工区，各施工工种，各项自愿之间的相互关系。施工组织方案必须能够根据工程产品的特点和要求，根据现有的和可能争取到的施工条件，从实际出发，决定各种生产要素的基本结合方式，不切实解决问题，就不可能进行任何生产。
3．施工组织设计的指标计算和分析
目前施工组织设计应建立哪些指标还不统一，计算方法也不规范。由于它是评价施工组织设计整体效果和评价执行状况的尺度，也是对承建工程施工的单位(项目部)生产经营管理水平和效果进行考核的依据。应予重视，提出如下意见。
3．1 指标体系。指标体系的设置要尽量反映施工组织设计目标达到的水平，为评价、考核、执行提供方便。
3．2 指标计算。(1)施工准备期。从现场准备开始到正式工程开工的全部时间。(2)单位工程工期。由单位工程施工进度计划安排的施工期。(3)劳动力不均衡系数。施工期高峰人数与平均人数之比。(4)降低成本额。技术组织措施降低成本的价格成果。(5)降低成本率。降低成本额占承包成本的百分比。(6)施工机械化程度。机械施工完成产值与工程承包造价之比。(7)工厂化施工程度。预制厂(采砂场、采石场)完成的产值与工程承包造价之比。(8)临时工程投资比例。全部临时工程投资与工程承包造价之比。(9)临时工程费用比例。全部临时工程消耗费用减回收费与工程承包造价之比。
3．3 指标分析。施工组织设计指标与同类工程历史实际水平相比，可以评价施工组织设计效果；不同施工组织设计方案的指标对比，可以优选方案；分析以往历次同类工程的各项指标的加权数值，可以作为今后再次投标的参考依据。 4．施工组织设计的管理
随着社会主义市场经济的建立,建筑市场的竞争日趋激烈,客观形势对施工企业的要求越来越高。不仅在技术装备、人员素质、施工组织者方面提出较高的要求，而且工程经济管理工作中有关工程预结算也面临新的挑战。严谨建筑市场形势下，有些施工企业没有积极采取应对措施,对员工的专业技术没有更新、培训。科学技术管理水平相当落后。加上对编制审核施工组织设计没有引起足够的重视。因此就会出现以下几种常见的情况：
4.1开工前没有编制审核施工组织设计：不搞施工平面布置图,材料乱堆乱放。土方运出运进、机械设备、劳动力需求无计划、工程质量、安全施工无保证措施。造成窝工浪费现象严重,管理水平较低。
4.2是否是专业人员编制施工组织设计：为应付上级部门及监理单位、甲方检查而给施工员或资料员代编施工组织设计。因为资料根本对现在的施工管理不了解而又是领导最近安排的，不得不胡乱编造，应付了事。
4.3施工组织设计编制水平低：有的施工单位，不明白施工组织在施工过程中的重要性，写一写各分项施工工艺、画张平面布置图、工程进度计划表,便认为是施工组织设计了。
4.4要技术弃经济：相当多的施工企业单位在编制施工组织设计时。只重视施工组织当中的各分项工程的技术措施。没有考虑分项工程经济指标方面内容,导致工程竣工结算时纠纷不断,蒙受经济损失。
因此，要对施工组织设计进行管理：
（1）实行动态管理
工程施工过程中，不可避免地会遇到意想不到的各种问题，如设计变更、自然因素等影响，各阶段施工进程的变化造成现场方案的调整，因此必须根据变化了的现场实际进行动态管理，对施工组织设计中不适宜部分进行必须的修改、补充、优化，以达到既定的建设目标。
（2）实行分层管理
项目法施工的推行，管理层与作业层分离，以及固定工人逐步减少的情况，势必引出总承包与分包的现象，中标单位从过去的直接管理、直接技术交底，变为间接管理、间接技术交底，因此应根据施工组织设计进行分层管理，明确总包与分包单位、管理层与作业层的技术权限、职责与工作程序。
5．结语
在项目的施工中，一定要对施工组织设计进行监督和控制，确保项目的施工有序，防止施工组织设计流于形式。施工组织设计是工程质量、安全、进度的保障有力措施。在一定的资源条件下实现工程的技术经济效益，达到施工效益与经济效益双赢的目的。
Importance of construction organization design
Summary:
Construction work in the construction process, the construction organization scheme will not only directly affect project quality, duration and safety also has an important impact in the construction process. Construction organization projects and mentoring in construction of key technical and economic documents. Can regulate the construction people, machines, materials, environment, technology, equipment, construction, installation, management, production and other conflicts , monitoring and control of the construction organization design , scientific and reasonable assurance the completion of project of high quality, low cost, low energy consumption.
Key words:
Project management construction management programme the importance Construction organization design is the idea of the whole construction process of engineering construction project ideas and specific arrangements, organization and management of construction work is the heart and soul. Its aim is to enable high speed, high quality, efficiency. Engineering-best results when working in construction as a whole.
1． Because of the importance of preparation of construction organization design
Architectural engineering and construction with a fixed and liquidity, diversity and one-piece, form a large and long construction period the three characteristics. Therefore, each construction engineering construction organization design of construction must be carried out. This is because other general industrial products have their own fixed, long-term application factories. Building construction is characterized by mobility, impossible to build such a plant, only when each of the construction, and establishing an appropriate, provisional, as factory construction site preparation, namely, site. Construction characteristics and construction of single pieces of mobility features, decided to select appropriate equipment for each construction and labor organizations. Construction technology of construction method of
selecting, developing programmes and labour organizations and equipment configuration, collectively known as operation capacity configuration. Construction cycle features determines the labour supply of many material, equipment and technology is a long time, which raises the total progress plan of construction material that is appropriate for the construction organization design of technology content. It can be seen that is of considerable importance in construction organization design in project management.
2.Importance of construction organization design
Construction products as a commodity and engineering quality in project management plays a vital role in the entire construction process. Construction organization design and engineering cost of construction projects has a close relationship. Construction organization design of basic content: project overview and analysis of construction conditions, implementation plan, construction technology, construction progress plan and general plan of construction. Further economic analysis and construction preparation plans. , Scheme and construction technology in construction of more important , such as : levels of selection, selection of transport method of construction machinery, earth-moving construction method and construction method and construction technology of main structure of choice and so on , are directly affecting the estimated project price changes. In ensuring project quality and meet the owners subject to the requirements and duration requirements , optimizing construction scheme and construction technology are important measures to control investment and reduce project cost and means.
2.1Construction organization scheme is to a large extent affect project quality, reasonable construction programme is not only to ensure that the basis for successful completion of the construction, safety basis. Construction organization design is an important part of construction design documents, is the main basis for preparation of the project investment budget and preparation of tender documents, the main frame of reference. Therefore, good job in construction organization design,
correctly determine project cost, reduce engineering investment, thus enabling to control project cost would have a very important role.
2.2Construction organization plan of construction activities is an important means of implementing scientific management, it has the dual role of strategic deployment and tactical arrangements. It reflects the requirements of implementing the capital master plan and design provides all phases of construction preparation, coordination of construction during the construction project, the construction trade, the relationship between voluntary. Construction organization scheme must be according to the product's characteristics and requirements, based on existing and possible securing construction conditions, realistic, determine how the basic combination of various factors of production, does not solve problems, it is impossible for any production.
3 Construction design calculation and analysis of indicators
Construction organization design should be to establish which indicators are not unified, calculation or specification. Because it is the evaluation of construction organization design of the overall assessment of the effectiveness and the status of implementation, as well as project construction units ( project ) production and management levels and to test the effectiveness of the basis. Must be given to, and made the following comments.
3.1 Index system. Sets as far as possible reflect the construction organization design of index system of the target level of, and to facilitate the evaluation, examination, implementation.
3.2 Index calculation. (1) construction preparation phase. Starting from site preparation to the official project for all time. (2) project duration. Arranged by unit engineering construction progress plan of construction. (3) labour imbalance coefficient. During peak and the average ratio of the number of. (4) reduce the cost amount. Technical measures to reduce the cost of results. (5) reduce the cost rate. Cost reduction percentage of total contract costs. (6) construction mechanization. Mechanical construction completed production and engineering contract cost ratio. (7) the level of industrial construction.
Precast factory ( sand excavation, quarries ) completed production and engineering contract cost ratio. (8) the investment proportion of temporary works. All temporary works investment and engineering contracts cost ratio. (9) cost of temporary works. All temporary works cost recovery fees and contract cost reduction ratio.
3.3 Indicator analysis. Construction organization design of indicators as compared to similar projects historical actual levels, can assess the impact construction organization design; different indicators of construction organization design in contrast to optimum programme; analysis of the weighted numerical indicator of previous similar projects could serve as a reference for future bidding again.
4 Management of construction organization design
With the establishment of the Socialist market economy , building increasingly fierce market competition , objective conditions on the construction enterprise requirements getting higher and higher. Not only in terms of technical equipment, quality of personnel, organizer of construction put forward higher requirements, but also in engineering economics and management work engineering budget and settlement also faces new challenges. Strict construction market situation, some construction companies do not have a positive response , had no update on staff expertise and training. Science and technology management level quite backward. And for the preparation of construction organization design of audit did not attract enough attention. Therefore, there will be several common scenarios:
4.1 Before commencement of construction organization design of auditing has not been prepared: not to engage in the construction of floor plans , materials of rubble lying around. Earthwork out of transport, machinery and equipment, quality of labor demand planning, engineering, construction without guarantees of security. Caused the serious waste of idling , lower levels of management.
4.2 Is the professional preparation of construction organization design: to cope with higher authorities and supervision units, the customer shall check and construction construction organization design
for information or addendum. Because the information simply don't know about now, construction management and leadership has recently arranged, had to make up indiscriminately to deal with.
4.3 Low levels of construction organization design preparation: some construction units, do not understand the importance of construction organization in the construction process, write about the construction process, draw a floor plan, project schedule , is considered to be construction organization plan.
4.4Abandoned technology economy: a considerable number of units at the time of preparation of construction organization design in construction enterprise. Only importance to the construction of the project of technical measures. Content does not take into account economic indicators , leading to projects completion settlement of disputes continue , causing economic losses.
Therefore, the management of construction organization design:
(1) the introduction of dynamic management
Construction process, inevitably will encounter unexpected problems, such as impact, natural factors such as design changes, change field programmes of each stage of the construction process adjustments must therefore be based on dynamic management of engineering field, not suitable for construction organization design section must be modified, supplemented, optimization, to reach the established goal.
(2) Implementation of hierarchical management
Project law construction of introduced, management layer and job layer separation, and fixed workers gradually reduced of situation, will leads total contract and points package of phenomenon, bid units from past of directly management, and directly technology low-down, becomes indirect management, and indirect technology low-down, therefore should according to construction organization design for tiered management, clear total package and points package units, and management layer and job layer of technology permission, and duties and work program.
5． Closing remarks
In the construction of the project, be sure to oversight and control of the construction organization design to ensure project construction in order to prevent construction organization design of formality. Progress of the construction organization design of project quality, security, strong measures of protection. In conditions of considerable resources to achieve economic benefit of the project and achieve the win-win purpose construction and economic benefit.
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外文文献原文+译文 原文 The study on the design of neuter clothing H ous e W Abstract Social and economic development, social thought, opening up and the progress of science and technology, men and women style presented the diversified pattern of neuter the fuzzy gender differences in style, from the beginning of non-mainstream des ign till n ow has develop ed i nt o on e of the mains t ream fas hi on d es ign style. Fashion brands have launched in recent years, the neutral flavor of fashion, neuter clothing market share of more and more, neutral fashion, with its broad group of sex leads the urban street fashion. Neutralization of free and open way of life style, gave people a comfortable and enjoyable. K ey words: Neut e r; Cl ot hing; Gender roles; Design 1 Introduction The beginning of the 20th century the rise of the feminist movement, make the neutral clothing as a kind of style into the line of sight of people. In the 90 s, the neutral clothing has used by each big brand clothing as one of the fashionable e lement s, s uc h a s dust coa t w i th a ne ut ral style, s ui ts, t-shirt s and j e ans have bec om e people like everyday clothes. Neuter clothing style is a simple, pure; reject all multifarious mincing, personalized style. As a special kind of clothing style, neuter clothing fashion has been intensified in the social life, so it is necessary for us to study the clothing neutralization phenomenon, to study its causes and the development of sociology. This article mainly from the sociological association as well as the relationship between men and women clothing and gender status in the society, which is based on analyzing the change of the study the social basis of the neutral clothing appear; Again from the social system, economic development, cultural trend and fashion designers to the influence of the neutral clothing style, etc., it is concluded that the neuter clothing phenomenon is the development of social consciousness, the sexual role transformation, the new clothing design trends are affecting the results.
模具毕业设计外文翻译7081204
(此文档为word格式，下载后您可任意编辑修改！) 冷冲模具使用寿命的影响及对策 冲压模具概述 冲压模具--在冷冲压加工中，将材料(金属或非金属)加工成零件(或半成品)的一种特殊工艺装备，称为冷冲压模具(俗称冷冲模)。冲压--是在室温下，利用安装在压力机上的模具对材料施加压力，使其产生分离或塑性变形，从而获得所需零件的一种压力加工方法。 冲压模具的形式很多，一般可按以下几个主要特征分类： 1?根据工艺性质分类 (1)冲裁模沿封闭或敞开的轮廓线使材料产生分离的模具。如落料模、冲孔模、切断模、切口模、切边模、剖切模等。 (2)弯曲模使板料毛坯或其他坯料沿着直线(弯曲线)产生弯曲变形，从而获得一定角度和形状的工件的模具。 (3)拉深模是把板料毛坯制成开口空心件，或使空心件进一步改变形状和尺寸的模具。 (4)成形模是将毛坯或半成品工件按图凸、凹模的形状直接复制成形，而材料本身仅产生局部塑性变形的模具。如胀形模、缩口模、扩口模、起伏成形模、翻边模、整形模等。2?根据工序组合程度分类 (1)单工序模在压力机的一次行程中，只完成一道冲压工序的模具。 (2)复合模只有一个工位，在压力机的一次行程中，在同一工位上同时完成两道或两道以上冲压工序的模具。 (3)级进模(也称连续模) 在毛坯的送进方向上，具有两个或更多的工位，在压力机的一次行程中，在不同的工位上逐次完成两道或两道以上冲压工序的模具。 冲冷冲模全称为冷冲压模具。 冷冲压模具是一种应用于模具行业冷冲压模具及其配件所需高性能结构陶瓷材料的制备方法，高性能陶瓷模具及其配件材料由氧化锆、氧化钇粉中加铝、错元素构成，制备工艺是将氧化锆溶液、氧化钇溶液、氧化错溶液、氧化铝溶液按一定比例混合配成母液，滴入碳酸氢铵，采用共沉淀方法合成模具及其配件陶瓷材料所需的原材料，反应生成的沉淀经滤水、干燥，煅烧得到高性能陶瓷模具及其配件材料超微粉，再经过成型、烧结、精加工，便得到高性能陶瓷模具及其配件材料。本发明的优点是本发明制成的冷冲压模具及其配件使用寿命长，在冲压过程中未出现模具及其配件与冲压件产生粘结现象，冲压件表面光滑、无毛刺，完全可以替代传统高速钢、钨钢材料。 冷冲模具主要零件冷冲模具是冲压加工的主要工艺装备，冲压制件就是靠上、下模具的相对运动来完成的。 加工时由于上、下模具之间不断地分合，如果操作工人的手指不断进入或停留在模具闭合区，便会对其人身安全带来严重威胁。 1
土木工程外文翻译.doc
项目成本控制 一、引言 项目是企业形象的窗口和效益的源泉。随着市场竞争日趋激烈，工程质量、文明施工要求不断提高，材料价格波动起伏，以及其他种种不确定因素的影响，使得项目运作处于较为严峻的环境之中。由此可见项目的成本控制是贯穿在工程建设自招投标阶段直到竣工验收的全过程，它是企业全面成本管理的重要环节，必须在组织和控制措施上给于高度的重视，以期达到提高企业经济效益的目的。 二、概述 工程施工项目成本控制，指在项目成本在成本发生和形成过程中，对生产经营所消耗的人力资源、物资资源和费用开支，进行指导、监督、调节和限制，及时预防、发现和纠正偏差从而把各项费用控制在计划成本的预定目标之内，以达到保证企业生产经营效益的目的。 三、施工企业成本控制原则 施工企业的成本控制是以施工项目成本控制为中心，施工项目成本控制原则是企业成本管理的基础和核心，施工企业项目经理部在对项目施工过程进行成本控制时，必须遵循以下基本原则。 3.1 成本最低化原则。施工项目成本控制的根本目的，在于通过成本管理的各种手段，促进不断降低施工项目成本，以达到可能实现最低的目标成本的要求。在实行成本最低化原则时，应注意降低成本的可能性和合理的成本最低化。一方面挖掘各种降低成本的能力，使可能性变为现实；另一方面要从实际出发，制定通过主观努力可能达到合理的最低成本水平。 3.2 全面成本控制原则。全面成本管理是全企业、全员和全过程的管理，亦称“三全”管理。项目成本的全员控制有一个系统的实质性内容，包括各部门、各单位的责任网络和班组经济核算等等，应防止成本控制人人有责，人人不管。项目成本的全过程控制要求成本控制工作要随着项目施工进展的各个阶段连续 进行，既不能疏漏，又不能时紧时松，应使施工项目成本自始至终置于有效的控制之下。 3.3 动态控制原则。施工项目是一次性的，成本控制应强调项目的中间控制，即动态控制。因为施工准备阶段的成本控制只是根据施工组织设计的具体内容确
机械类毕业设计外文翻译
本科毕业论文(设计) 外文翻译 学院：机电工程学院 专业：机械工程及自动化 姓名：高峰 指导教师：李延胜 2011年05 月10日 教育部办公厅 Failure Analysis，Dimensional Determination And
Analysis，Applications Of Cams INTRODUCTION It is absolutely essential that a design engineer know how and why parts fail so that reliable machines that require minimum maintenance can be designed．Sometimes a failure can be serious，such as when a tire blows out on an automobile traveling at high speed．On the other hand，a failure may be no more than a nuisance．An example is the loosening of the radiator hose in an automobile cooling system．The consequence of this latter failure is usually the loss of some radiator coolant，a condition that is readily detected and corrected．The type of load a part absorbs is just as significant as the magnitude．Generally speaking，dynamic loads with direction reversals cause greater difficulty than static loads，and therefore，fatigue strength must be considered．Another concern is whether the material is ductile or brittle．For example，brittle materials are considered to be unacceptable where fatigue is involved． Many people mistakingly interpret the word failure to mean the actual breakage of a part．However，a design engineer must consider a broader understanding of what appreciable deformation occurs．A ductile material，however will deform a large amount prior to rupture．Excessive deformation，without fracture，may cause a machine to fail because the deformed part interferes with a moving second part．Therefore，a part fails(even if it has not physically broken)whenever it no longer fulfills its required function．Sometimes failure may be due to abnormal friction or vibration between two mating parts．Failure also may be due to a phenomenon called creep，which is the plastic flow of a material under load at elevated temperatures．In addition，the actual shape of a part may be responsible for failure．For example，stress concentrations due to sudden changes in contour must be taken into account．Evaluation of stress considerations is especially important when there are dynamic loads with direction reversals and the material is not very ductile． In general，the design engineer must consider all possible modes of failure，which include the following． ——Stress ——Deformation ——Wear ——Corrosion ——Vibration ——Environmental damage ——Loosening of fastening devices
【最新推荐】印花在服装设计中的应用外文文献
文献出处：A Dehghani. The application of digital printing in fashion design [J]. International Journal of Clothing Science and Technology, 2015, 16(2): 263-271. 原文 The application of digital printing in fashion design A Dehghani Abstract The appearance of digital printing for textiles printing provides a new train of thought, digital printing with the current textile fabric printing a variety of requirements of the market of printing technology, including high quality printing precision, high efficiency of printing on reaction time and the printing of the diverse demand, these advantages directly promoted the digital ink jet printing in the rapid development of textile fabric printing direction. In this paper, the design method of the digital printing design of different style and means of decoration and design method in the fabrics for summary, it is concluded that digital printing design cuttings in fabric printing, clothing apparel printing method and the application of the traditional fabric secondary design and decorative effect. Through the above research, digital printing and garment design and garment style between the relationships between the shapes, thereby further to bring into full play the advantages of
模具专业外文文献最新
济南大学泉城学院 毕业设计外文资料翻译 题目现代快速经济制造模具技术 专业机械制造及其自动化 班级专升本1302班 学生刘计良 学号2013040156 指导教师刘彦 二〇一五年三月十六日
Int J Adv Manuf Technol ,(2011) 53:1–10DOI 10.1007/s00170-010-2796-y Modular design applied to beverage-container injection molds Ming-Shyan Huang & Ming-Kai Hsu Received: 16 March 2010 / Accepted: 15 June 2010 / Published online: 25 June 2010 # Springer-Verlag London Limited 2010 Modular design applied to beverage-container injection molds The Abstract: This work applies modular design concepts to designating beverage-container injection molds. This study aims to develop a method of controlling costs and time in relation to mold development, and also to improve product design. This investigation comprises two parts: functional-ity coding, and establishing a standard operation procedure, specifically designed for beverage-container injection mold design and manufacturing. First, the injection mold is divided into several modules, each with a specific function. Each module is further divided into several structural units possessing sub-function or sub-sub-function. Next, dimen-sions and specifications of each unit are standardized and a compatible interface is constructed linking relevant units. This work employs a cup-shaped beverage container to experimentally assess the performance of the modular design approach. The experimental results indicate that the modular design approach to manufacturing injection molds shortens development time by 36% and reduces costs by 19 23% compared with the conventional ap-proach. Meanwhile, the information on
土木工程外文文献翻译
专业资料 学院： 专业：土木工程 姓名： 学号： 外文出处：Structural Systems to resist (用外文写) Lateral loads 附件：1.外文资料翻译译文；2.外文原文。
附件1：外文资料翻译译文 抗侧向荷载的结构体系 常用的结构体系 若已测出荷载量达数千万磅重，那么在高层建筑设计中就没有多少可以进行极其复杂的构思余地了。确实，较好的高层建筑普遍具有构思简单、表现明晰的特点。 这并不是说没有进行宏观构思的余地。实际上，正是因为有了这种宏观的构思，新奇的高层建筑体系才得以发展，可能更重要的是：几年以前才出现的一些新概念在今天的技术中已经变得平常了。 如果忽略一些与建筑材料密切相关的概念不谈，高层建筑里最为常用的结构体系便可分为如下几类： 1.抗弯矩框架。 2.支撑框架，包括偏心支撑框架。 3.剪力墙，包括钢板剪力墙。 4.筒中框架。 5.筒中筒结构。 6.核心交互结构。 7. 框格体系或束筒体系。 特别是由于最近趋向于更复杂的建筑形式，同时也需要增加刚度以抵抗几力和地震力，大多数高层建筑都具有由框架、支撑构架、剪力墙和相关体系相结合而构成的体系。而且，就较高的建筑物而言，大多数都是由交互式构件组成三维陈列。 将这些构件结合起来的方法正是高层建筑设计方法的本质。其结合方式需要在考虑环境、功能和费用后再发展，以便提供促使建筑发展达到新高度的有效结构。这并
不是说富于想象力的结构设计就能够创造出伟大建筑。正相反，有许多例优美的建筑仅得到结构工程师适当的支持就被创造出来了，然而，如果没有天赋甚厚的建筑师的创造力的指导，那么，得以发展的就只能是好的结构，并非是伟大的建筑。无论如何，要想创造出高层建筑真正非凡的设计，两者都需要最好的。 虽然在文献中通常可以见到有关这七种体系的全面性讨论，但是在这里还值得进一步讨论。设计方法的本质贯穿于整个讨论。设计方法的本质贯穿于整个讨论中。 抗弯矩框架 抗弯矩框架也许是低，中高度的建筑中常用的体系，它具有线性水平构件和垂直构件在接头处基本刚接之特点。这种框架用作独立的体系，或者和其他体系结合起来使用，以便提供所需要水平荷载抵抗力。对于较高的高层建筑，可能会发现该本系不宜作为独立体系，这是因为在侧向力的作用下难以调动足够的刚度。 我们可以利用STRESS，STRUDL 或者其他大量合适的计算机程序进行结构分析。所谓的门架法分析或悬臂法分析在当今的技术中无一席之地，由于柱梁节点固有柔性，并且由于初步设计应该力求突出体系的弱点，所以在初析中使用框架的中心距尺寸设计是司空惯的。当然，在设计的后期阶段，实际地评价结点的变形很有必要。 支撑框架 支撑框架实际上刚度比抗弯矩框架强，在高层建筑中也得到更广泛的应用。这种体系以其结点处铰接或则接的线性水平构件、垂直构件和斜撑构件而具特色，它通常与其他体系共同用于较高的建筑，并且作为一种独立的体系用在低、中高度的建筑中。
机械类毕业设计外文文献翻译
沈阳工业大学工程学院 毕业设计（论文）外文翻译 毕业设计（论文）题目：工具盒盖注塑模具设计 外文题目：Friction , Lubrication of Bearing 译文题目：轴承的摩擦与润滑 系（部）：机械系 专业班级：机械设计制造及其自动化0801 学生姓名：王宝帅 指导教师：魏晓波 2010年10 月15 日
外文文献原文： Friction , Lubrication of Bearing In many of the problem thus far , the student has been asked to disregard or neglect friction . Actually , friction is present to some degree whenever two parts are in contact and move on each other. The term friction refers to the resistance of two or more parts to movement. Friction is harmful or valuable depending upon where it occurs. friction is necessary for fastening devices such as screws and rivets which depend upon friction to hold the fastener and the parts together. Belt drivers, brakes, and tires are additional applications where friction is necessary. The friction of moving parts in a machine is harmful because it reduces the mechanical advantage of the device. The heat produced by friction is lost energy because no work takes place. Also , greater power is required to overcome the increased friction. Heat is destructive in that it causes expansion. Expansion may cause a bearing or sliding surface to fit tighter. If a great enough pressure builds up because made from low temperature materials may melt. There are three types of friction which must be overcome in moving parts: (1)starting, (2)sliding, and(3)rolling. Starting friction is the friction between two solids that tend to resist movement. When two parts are at a state of rest, the surface irregularities of both parts tend to interlock and form a wedging action. To produce motion in these parts, the wedge-shaped peaks and valleys of the stationary surfaces must be made to slide out and over each other. The rougher the two surfaces, the greater is starting friction resulting from their movement . Since there is usually no fixed pattern between the peaks and valleys of two mating parts, the irregularities do not interlock once the parts are in motion but slide over each other. The friction of the two surfaces is known as sliding friction. As shown in figure ,starting friction is always greater than sliding friction . Rolling friction occurs when roller devces are subjected to tremendous stress which cause the parts to change shape or deform. Under these conditions, the material in front of a roller tends to pile up and forces the object to roll slightly uphill. This changing of shape , known as deformation, causes a movement of molecules. As a result ,heat is produced from the added energy required to keep the parts turning and overcome friction. The friction caused by the wedging action of surface irregularities can be overcome