土木工程外文翻译--混凝土结构配筋设计

土木工程外文翻译--混凝土结构配筋设计
土木工程外文翻译--混凝土结构配筋设计

英文原文:

Concrete structure reinforcement design

Sheyanb oⅠWangchenji aⅡ

ⅠFoundation Engineering Co., Ltd. Heilongjiang Dongyu

ⅡHeilongjiang Province, East Building Foundation Engineering Co., Ltd. Coal

Abstract:structure in the long-term natural environment and under the use environment's function, its function is weaken inevitably gradually, our structural engineering's duty not just must finish the building earlier period the project work,

but must be able the science appraisal structure damage objective law and the degree,

and adopts the effective method guarantee structure the security use, that the structure reinforcement will become an important work. What may foresee will be the

21st century, the human building also by the concrete structure, the steel structure,

the bricking-up structure and so on primarily, the present stage I will think us

in the structure reinforcement this aspect research should also take this as the main breakthrough direction.

Key word: Concrete structure reinforcement bricking-up structure reinforcement steel structure reinforcement

1 Concrete structure reinforcement

Concrete structure's reinforcement divides into the direct reinforcement and reinforces two kinds indirectly, when the design may act according to the actual condition and the operation requirements choice being suitable method and the necessary technology.

1.1the direct reinforcement's general method

1)Enlarges the section reinforcement law

Adds the concretes cast-in-place level in the reinforced concrete member in bending compression zone, may increase the section effective height, the expansion cross sectional area, thus enhances the component right section anti-curved, the oblique section anti-cuts ability and the section rigidity, plays the reinforcement reinforcement the role.

In the suitable muscle scope, the concretes change curved the component right section supporting capacity increase along with the area of reinforcement and the

intensity enhance. In the original component right section ratio of reinforcement not too high situation, increases the main reinforcement area to be possible to propose the plateau component right section anti-curved supporting capacity effectively. Is pulled in the section the area to add the cast-in-place concrete jacket to increase the component section, through new Canada partial and original component joint work, but enhances the component supporting capacity effectively, improvement normal operational performance.

Enlarges the section reinforcement law construction craft simply, compatible, and has the mature design and the construction experience; Is suitable in Liang, the board, the column, the wall and the general structure concretes reinforcement; But scene construction's wet operating time is long, to produces has certain influence with the life, and after reinforcing the building clearance has certain reduction.

2) Replacement concretes reinforcement law

This law's merit with enlarges the method of sections to be close, and after reinforcing, does not affect building's clearance, but similar existence construction wet operating time long shortcoming; Is suitable somewhat low or has concretes carrier's and so on serious defect Liang, column in the compression zone concretes intensity reinforcement.

3) the caking outsourcing section reinforcement law

Outside the Baotou Steel Factory reinforcement is wraps in the section or the steel plate is reinforced component's outside, outside the Baotou Steel Factory reinforces reinforced concrete Liang to use the wet outsourcing law generally, namely uses the epoxy resinification to be in the milk and so on methods with to reinforce the section the construction commission to cake a whole, after the reinforcement component, because is pulled with the compressed steel cross sectional area large scale enhancement, therefore right section supporting capacity and section rigidity large scale enhancement.

This law also said that the wet outside Baotou Steel Factory reinforcement law, the stress is reliable, the construction is simple, the scene work load is small, but is big with the steel quantity, and uses in above not suitably 600C in the non-protection's situation the high temperature place; Is suitable does not allow in the use obviously to

increase the original component section size, but requests to sharpen its bearing capacity large scale the concrete structure reinforcement.

4) Sticks the steel reinforcement law

Outside the reinforced concrete member in bending sticks the steel reinforcement is (right section is pulled in the component supporting capacity insufficient sector area, right section compression zone or oblique section) the superficial glue steel plate, like this may enhance is reinforced component's supporting capacity, and constructs conveniently.

This law construction is fast, the scene not wet work or only has the plastering and so on few wet works, to produces is small with the life influence, and after reinforcing, is not remarkable to the original structure outward appearance and the original clearance affects, but the reinforcement effect is decided to a great extent by the gummy craft and the operational level; Is suitable in the withstanding static function, and is in the normal humidity environment to bend or the tension member reinforcement.

5) Glue fibre reinforcement plastic reinforcement law

Outside pastes the textile fiber reinforcement is pastes with the cementing material the fibre reinforcement compound materials in is reinforced the component to pull the region, causes it with to reinforce the section joint work, achieves sharpens the component bearing capacity the goal. Besides has glues the steel plate similar merit, but also has anticorrosive muddy, bears moistly, does not increase the self-weight of structure nearly, durably, the maintenance cost low status merit, but needs special fire protection processing, is suitable in each kind of stress nature concrete structure component and the general construction.

This law's good and bad points with enlarge the method of sections to be close; Is suitable reinforcement which is insufficient in the concrete structure component oblique section supporting capacity, or must exert the crosswise binding force to the compressional member the situation.

6) Reeling law

This law's good and bad points with enlarge the method of sections to be close; Is suitable reinforcement which is insufficient in the concrete structure component

oblique section supporting capacity, or must exert the crosswise binding force to the compressional member the situation.

7) Fang bolt anchor law

This law is suitable in the concretes intensity rank is the C20~C60 concretes load-bearing member transformation, the reinforcement; It is not suitable for already the above structure which and the light quality structure makes decent seriously.

1.2The indirect reinforcement's general method

1)Pre-stressed reinforcement law

(1)Thepre-stressed horizontal tension bar reinforces concretes member in bending,because the pre-stressed and increases the exterior load the combined action, in the tension bar has the axial tension, this strength eccentric transmits on the component through the pole end anchor (, when tension bar and Liang board bottom surface close fitting, tension bar can look for tune together with component, this fashion has partial pressures to transmit directly for component bottom surface), has the eccentric compression function in the component, this function has overcome the bending moment which outside the part the load produces, reduced outside the load effect, thus sharpened component's anti-curved ability. At the same time, because the tension bar passes to component's pressure function, the component crack development can alleviate, the control, the oblique section anti-to cut the supporting capacity also along with it enhancement.

As a result of the horizontal lifting stem's function, the original component's section stress characteristic by received bends turned the eccentric compression, therefore, after the reinforcement, component's supporting capacity was mainly decided in bends under the condition the original component's supporting capacity 。

(2) After the reinforced concrete component uses under the pre-stressed to support the type tension bar reinforcement decides, forms one by to reinforce the component and under supports the compound ultra statically determinate structure system which the type tension bar is composed, under the outside load and the pre-stressed combined action, in the tension bar has the axial force and through (next supports and pole end anchor spot) with component's combining site transmits for is reinforced the component, has counter-balanced outside the part the load, changed the original component section endogenic force characteristic, thus sharpened

component's bearing capacity.

This law can reduce is reinforced component's stress level, not only causes the reinforcement effect to be good, moreover can also the great scope enhance the structure overall supporting capacity, but after reinforcing, has certain influence to the original structure outward appearance; Is suitable as well as is under the high stress, the high strained condition concretes component's reinforcement in the great span or the heavy structure reinforcement, but in the non-protection's situation, cannot use in the temperature above 600C in the environment, is also not suitable uses in the concrete shrinkage continuous variation big structure.

2)Increases the supporting reinforcement law

The addition pivot reinforcement law is through the reduced member in bending effective span, achieves the reduced function, in is reinforced on the component to carry the effect, raises the structure load bearing level the goal. This law simple reliable, but easy to harm building's original condition and the use function, possibly and reduces uses the space; Is suitable in the concrete term permission concrete structure reinforcement.

1.3 Has generally with the concrete structure reinforcement transformation necessary use's technology

1) The request trades the technology

It is the joist (either truss) opens the column (or wall), the joist terminal and the joist trades technologies and so on column to call generally; Belongs to one kind of comprehensive technology, by the related structure reinforcement, the superstructure goes against rises with to reposition as well as abandons technologies and so on component demolition to be composed; Is suitable in had building's reinforcement transformation; Compares with the traditional practices, has the construction time to be short, the expense low, affects and so on merits slightly to the life and the production, but is high to the specification, must complete by the skilled worker, can ensure the security.

2)Plants the muscle technology

It is one item is simple and direct to the concrete structure, the effective

connection and the anchor technology; May implant the ordinary steel bar, may also implant the bolt type anchor muscle; Has widely applied in had building's reinforcement improvement project, for example: In the construction leaks buries the steel bar or the steel bar deviation designs the position the recovery, the component increases the section reinforcement to make up the muscle, the superstructure expands cross, goes against rises to Liang, column's lengthening by joining, the house superimposed layer terminal and the high-rise construction addition shearing force wall plants the muscle and so on.

3)Crack patching technology

According to the concretes crack's cause, the character and the size, use seal differently protect the method to carry on patching, one kind of skill which causes the structure because to crack reduces the use function which and the durability can restore; Is suitable in had in the building each kind of crack processing, but to the stress crack, besides patching, still should use the corresponding reinforcement measure. The internal patching law is with the forcing pump the cementing material pressure concretes crack, renders the young or up and coming generation to sew up the function, and makes the original structure through its cementation to restore the integrity, this method is suitable for the crack opening is big, and durable and so on is influential to the structure integrity and the security, or has request and so on waterproof anti-seepage crack patching.

4)Carbonized concretes repair technology

It is refers to through restores the concretes the alkalinity (inactivation) or increases its impedance to enable the steel bar corrosion which the carbonization creates to obtain the containment technology.

5)Concretes surface treatment technology

It is refers to uses cleaning up concretes surface stains, the oil mark, the residual as well as the other attachment and so on chemistry method, mechanical method, sand blasting method, vacuum cleaning method, injection method skill.

6)Coagulation mantle of soil seal technology

It is refers to uses flexible methods and so on aquaseal backfill, polymer grouting, paint film to carry on the waterproofing to the concretes, moisture-proof and against

crack processing technology. Like the structure, the component shift the technology, the adjustment structure base frequency technology and so on.

7)Other technologies

Like the structure, the component shift the technology, the adjustment structure base frequency technology and so on.

2Bricking-up structure

Bricking-up structure reinforcement method: The bricking-up structure's reinforcement divides into when the direct reinforcement and reinforces two kinds indirectly, the design, may act according to the actual condition and the operation requirements choice being suitable method.

2.1suitable for the bricking-up structure direct

reinforcement method

1)outside reinforced concrete superimposed layer reinforcement law

This law belongs to the compound section reinforcement method one kind. Its merit is the construction craft simple, compatible, after the bricking-up reinforcement, the supporting capacity has enhances greatly, and has the mature design and the construction experience; Is suitable in the column, the belt wall wall reinforcement; Its shortcoming is the scene construction wet operating time is long, to produces has certain influence with the life, and after reinforcing the building clearance has certain reduction.

2)outside reinforced concrete mortar superimposed layer reinforcement

law

This law belongs to the compound section reinforcement method one kind. Its merit and outside the reinforced concrete the superimposed layer reinforcement law is close, but enhances the supporting capacity to be inferior to the former; Is suitable in the bricking-up wall reinforcement, sometimes also uses in outside the reinforced concrete when the superimposed layer reinforcement belt engaged column wall the both sides put on the wall stirrup the seal.

3)the addition holds the engaged column reinforcement law

This law belongs enlarges the section reinforcement method one kind. Its merit

the superimposed layer reinforcement law is also close with the reinforced concrete outside, but the supporting capacity enhances limitedly, and difficult to satisfy the earthquake resistance request, generally only in peneseismic country application.

2.2suitable for the bricking-up structure indirect

reinforcement method

1)non-caking outsourcing section reinforcement law

This law belongs to the traditional reinforcement method, its merit is the construction is simple, the scene work load and the wet work are few, the stress is more reliable; Is suitable in does not allow to increase the original component section size, actually requests to enhance the section supporting capacity large scale the bricking-up column's reinforcement; Its shortcoming is high for the reinforcement expense, and must use the similar steel structure the protective measure.

2) pre-stressed stay rod reinforcement law

This law can the great scope sharpen the bricking-up column's bearing capacity, and the reinforcement effect is reliable; Is suitable processes the high stress, the high strained condition bricking-up structure reinforcement in the reinforcement; Its shortcoming cannot use in the temperature in the 600C above environment.

2.3 bricking-up structure constructivity reinforcement and patching

1) addition grid reinforcement

When the grid establishment does not meet the present design code requirement, either the vertical cross wall interface point nips rubs has the obvious flaw, when either the house integrity is bad, should additionally build the grid to carry on the reinforcement

2)additionally builds the Liang pad reinforcement

When under the summer beam the brick setting the wall presents by under the partial squash or the summer beam the partial vertical split, should additionally build Liang the pad to carry on the reinforcement.

3)the bricking-up opens partially builds

When house partial breakage but after investigating thoroughly its breakage

reason when not yet affects load-bearing and the security, may burst the wall partial demolition, and according to enhances the mortar strength first-level to fill in with the full sized brick builds.

4)bricking-up crack patching

Before carrying on crack patching, should act according to bricking-up component's stressful condition and crack factors and so on characteristic, determined that creates the bricking-up crack the reason, with the aim of carrying on crack patching target-oriented or using the corresponding reinforcement measure.

3 steel structures

Steel structure reinforcement method: The steel structure reinforcement's main method includes: Reduces the load, the change structure computation graph, to enlarge the original structural unit section and the joint strength, the impediment fracture growth and so on. When has the mature experience, may also use other reinforcement method.

1) changes the structure computation graph

The change structure computation graph's reinforcement method is refers to uses the change load spread condition, the power transmission way, the node nature and the boundary condition, the addition attachment member and the support, exerts the pre-stressed that measures and so on consideration space joint operation to carry on the reinforcement to the structure the method

2)enlarges the component section the reinforcement

Uses enlarges when the section reinforces the steel lumber, chooses the section form to be advantageous in the reinforcement specification and considered already has the flaw and the damage condition.

3)connection reinforcement and reinforcing member connection

The steel structure connection method, namely the welded joint, the rivet, the ordinary bolt and the high strength bold fastening method's choice, should the reason which, the goal, the stress condition, the structure and the execution conditions needs to reinforce according to the structure, and considers the structure original connection method determination.

The steel structure reinforcement general uses the welded joint connection, the friction high strength bold fastening suitably, has when the basis may also use the welded joint and the friction high strength bolt's mixed connection. When uses the welded joint connects, should use after the evaluation approval welding process and the connection material.

4) crack repair and reinforcement

Because the structure the load affects and the choice of material, the structure, the manufacture, the work repeatedly improper and so on produces has the extension or breaks time crisply the tendentious crack damage, should try to repair. Before the repair, must analyze has the crack reason and the influence gravity, adopts the improvement structure practical work target-oriented or carries on the reinforcement the measure, to is not suitable uses the repair reinforcement the component, should give the demolition replacement.

中文翻译:

混凝土结构配筋设计

SheyanboⅡⅠWangchenjia

Ⅰ基础工程有限公司黑龙江东宇

Ⅱ黑龙江省东建筑地基基础工程有限公司煤

摘要:在长期的自然的环境下使用环境的功能结构,其功能减弱不可避免地渐渐地,我们的结构工程的责任不只是必须完成建设前期项目工作,但必须能够科学评价结构的破坏目标法律和程度,并采用有效的方法保证结构的安全使用,该结构加固将成为一个重要的工作。什么可以预见将是21世纪,人类建筑的混凝土结构,钢结构,砌体式结构等为主另外,现阶段我会觉得在结构加固我们这方面的研究也应借此作为主要的突破方向。

关键词:混凝土结构加固,砌体式结构,钢筋结构加固

1混凝土结构加固

混凝土结构的加固分为直接加固,并加强间接两种,在设计时可根据实际条件和使用要求选择适宜的方法和必要的技术。

1.1直接加固的一般方法

1)放大段加固法

添加混凝土现浇钢筋发生水平弯曲受压区混凝土构件,可能会增加部分有效高度,扩大截面面积,从而提高了组件的右侧部分反弯,斜截面抗切割能力部分刚度,起到加固补强的作用。

在适当的肌肉范围,改变混凝土弯曲的组件的右侧部分配套能力,随着钢筋面积和强度的提高增加。在原来的组件的右侧部分钢筋的比例不太高的情况,增加了主要加固面积有可能提出的高原组件的右侧部分抗弯曲能力,有效地支持。拉一节中,通过新的加拿大部分和原构件共同工作的领域添加现浇现浇混凝土外套组成部分增加,但提高了有效成分的配套能力,改善正常的经营业绩。

放大段加固法施工工艺简单,兼容,并具有成熟的设计和施工经验,在梁,板,柱,墙和一般结构用混凝土加固;但现场施工的湿作业时间长,对生产与生活有一定的影响,并加强建筑清拆后有一定减少。

2)置换混凝土加固法

该法与放大优点的部分方法被关闭,并经过加强的,不影响建筑物的清拆,但同样存在施工湿作业时间长的缺点;适合偏低或有混凝土承运人等严重缺陷梁,柱受压区混凝土强度的钢筋。

3)粘结外包段加固法

外包头钢铁厂强化是在部分或钢板包裹是钢筋构件的外,境外包头钢铁厂强化钢筋混凝土梁使用湿外包法律一般,即采用环氧树脂化中的牛奶等上与方法,以加强段施工委员会蛋糕一个整体,加固后的组件,因为是压缩钢横截面面积大幅度提高拉,所以右侧部分配套能力和部分刚性大幅度的提高。

该法还表示,包头钢铁厂外湿加固法,应力可靠,施工简便,现场工作量小,但与钢材数量大,不宜在上面,在非600℃用途,保护的形势高温场所;适合不允许在使用明显增加原构件截面尺寸,但要求以增强其承载能力的大型混凝土结构的加固。

4)粘钢加固法

外面的钢筋弯曲混凝土构件粘钢加固是(右边部分被拉到在组件配套能力不足,扇形的面积,右侧部分受压区或斜截面)表面胶钢板,这样可以提高是增强组件的配套能力,和施工方便。

该法施工速度快,现场工作或不湿上只有少数湿抹灰工程等,对生产与生活的影响小,经过加强的,是不显着原有结构的外观和原定清拆影响,但加固效果是决定由胶粘工艺和操作水平很大程度上,是在合适的承受静态函数,而在正常的湿度环境是弯曲或拉构件加固。

5)粘胶纤维增强塑料加固法

外贴纤维加固与胶结材料粘贴在该组件是加强该地区的拉纤维增强复合材料,使其与一节加强联合工作,达到磨练组件承载能力的目的。除了具有类似胶水的钢板的优点,又具有防腐泥泞,耐潮湿,不增加自身结构重量近,耐用,维护费用低等优点,但需要特殊的防火处理,是适合各种应力混凝土结构构件的性质和一般建设。

此法的优点和缺点与扩大部分将接近法是适用于钢筋混凝土结构构件的斜截面承载力不足,或必须施加横向约束力的挤压成员的情况。

6)缫丝法

此法的优点和缺点与扩大部分将接近法是适用于钢筋混凝土结构构件的斜截面承载力不足,或必须施加横向约束力的挤压成员的情况。

7)锚杆锚固法方

这项法律是在合适的混凝土强度等级为C20的混凝土?C60的承重成员改造,加固,它已经不适合上述结构,素质结构,光认真适合很体面。

1.2间接加固的一般方法

1)预应力加固法

(1)Thepre,强调加强横向拉杆弯曲混凝土的成员,因为前强调,增加外部装

入拉杆的共同作用,有轴向张力,通过杆结束这一部分的人数上的偏心传输锚(当拉杆与梁底部表面紧密贴合板,拉杆可以寻找调整与组件一起,这股热潮已分压传输组件底部表面直接),在组件中的偏心压缩功能,这个功能已经克服弯矩以外的部分负荷生产外荷载效应降低,从而激化组件的抗弯曲能力。同时,由于拉杆传递给组件的压力的作用,组件裂纹的发展可以缓解,控制,斜截面反减的配套能力也增强与它一起。

作为水平提升干的函数的结果,原来的组件的部分由收到弯曲应力的特点变成了偏心受压,因此,在加固,组件的配套能力,主要是在弯曲决定的条件下,原始组件的配套能力。

(2)在钢筋混凝土构件在使用前强调,要支持类型拉杆加固决定,形成一个由组件和加强支持下的复合超静定结构体系的类型拉杆组成,下外荷载和预应力的综合作用,在拉杆具有轴力,并通过与组件的结合的是增强了组件站点发送(未来支持和极端锚固点),已超出部分的负载反平衡,改变了原有构件截面内生力特性,从而激化组件的承载能力。

此法可减少是钢筋构件的应力水平,不仅使加固效果好,而且还能大范围提高结构的整体配套能力,但经过加固,有一定的影响,对原结构外观,适合作为以及在高压力,高紧张状态混凝土构件的加固,在大跨度或重型结构加固,但在非保护的情况下,不能使用在上述环境中的600℃的温度,也没有合适的用途不断变化的混凝土收缩大结构。

2)增加配套加固法

此外支点加固法的通过在弯曲有效跨度减少成员,达到减少功能,是在组件上进行效果增强,提高了结构承载水平的目的。该法简单可靠,但容易损害建筑物的原貌和使用功能,可能并减少使用空间;是在混凝土结构加固混凝土许可期限合适。

1.3与混凝土结构加固改造配套使用的技术

1)行业的技术要求

这是托梁(或桁架)打开列(或墙),终端的托梁和托梁和柱行业的技术叫一般左右;属于一种综合技术由相关结构加固,上层建筑违背与上升重新定位以及放弃等部件拆卸组成技术,适合在有建筑物的加固改造;与传统做法相比,具有施工时间短,费用低,影响和对案情非常轻微对生活和生产,但高到规范,必须完成由熟练的工人,可以确保安全。

2)植物的肌肉技术

这是一项很简单和直接的混凝土结构,有效连接和锚固技术;可植入普通钢筋,

也可植入螺栓式锚肌肉;已广泛应用在了建筑物的加固改造工程,例如:在施工中泄漏埋钢筋或钢筋偏离设计位置的复苏,组件增加了段加固来弥补肌肉,上层建筑扩大交叉,对上升去梁,柱的通过加入延长,房子叠加终端和层高层建筑剪力墙除了植物的肌肉等。

3)裂缝修补技术

根据混凝土裂缝的原因,性质和规模,使用印章不同的保护方法进行修补,一种技能,会导致结构,因为打击减少使用功能,和耐久性能恢复;适合于有在建筑物裂缝处理每一种,但对应力裂纹修补之外,还应该使用相应的加固措施。内部修补法与强制泵压混凝土胶凝材料的裂纹,呈现年轻或行动和未来一代缝合功能,使得通过其胶结恢复原来的结构的完整性,这种方法是合适的裂缝开口大,耐用等有影响的结构完整性和安全性,或有防水防渗修补裂缝要求等。

4)碳化混凝土修复技术

它是指通过恢复到混凝土的碱度(灭活)或增加其阻抗,使钢筋产生腐蚀,碳化技术得到遏制。

5)混凝土表面处理技术

它是指采用混凝土表面的污渍清理,油痕,残以及其他附件和化学法,机械法,喷砂法,真空清洗方法,注射的方法技巧等。

6)凝血地幔土壤密封技术

它是指用灵活的方法和密封剂回填等,聚合物灌浆,漆膜进行的混凝土防水,防潮和防止裂缝处理技术。像结构,组件技术的转移,调整结构基频技术等。

7)其他技术

像结构,组件技术的转移,调整结构基频技术等。

2砌体式结构

砌体式结构加固方法:砌体式结构的加固补强到时直接和间接地分为两种强化,设计,可根据实际条件和使用要求选择适宜的方法。

2.1适合于砌体式结构直接加固方法

1)外部钢筋混凝土叠合层加固法

该法属于复合段加固方法的一种。其优点是施工工艺简单,兼容,后砌体式加固,配套能力已大大提高,并具有成熟的设计和施工经验,在列,带墙壁加固合适,它的缺点是现场施工湿作业时间长,对生产与生活有一定的影响,并加强建筑清拆后有一定减少。

2)在境外的钢筋混凝土叠合层砂浆加固法

该法属于复合段加固方法的一种。它的优点和外部的钢筋混凝土叠合层加固法相近,但提高配套能力不如前者;是在砌体式挡土墙加固合适,有时还使用钢筋混

凝土外的加层加固时带从事柱壁在墙上的两个马镫把密封面。

3)除持有从事柱加固法

该法扩大了部分属于一种加固方法。其优点是加层加固法也是密切与钢筋混凝土以外,但配套能力增强局限的,难以满足抗震要求,一般只在peneseismic国家申请。

2.2适合于砌体式结构的间接加固方法

1)非结块外包段加固法

该法属于传统的加固方法,其优点是结构简单,现场的工作负荷和湿工作少,强调的是更可靠;适合在不允许增加原构件截面尺寸,其实要求提高部分配套能力的大型砌体式柱的加固,其缺点是费用高的钢筋,而必须使用类似钢结构的防护措施。

2)预应力加固法撑杆跳高

此法可大范围锐化砌体式柱的承载能力,加固效果可靠,适用于处理高压力,高紧张状态砌体,在钢筋结构加固,其缺点不能使用的温度600℃以上的环境中。

2.3砌体式结构构造性加固和修补

1)除了加强电网

当电网的设立不符合现行设计规范要求,无论是垂直的横墙界面点咬搓有明显的缺陷,诚信的房子时,无论是不好的,应该另外建立电网进行加固

2)增设梁垫加固

当在大梁砖壁设置提出了在部分壁球或大梁部分垂直分割,应加建梁垫进行加固。

3)砌体式开启部分基础

当房子部分破损,但经过深入调查时,其断裂的原因尚未影响承重和安全性,可以燎原墙部分拆除,并根据对提高砂浆强度的第一级,以填补与全尺寸砖基础。4)砌体行动修补裂缝

前裂缝修补携带,应根据砌体式组件的受力状态和裂缝等因素的特点,确定创建砌体式裂纹与裂纹修补目标导向或使用相应的账面目标的原因,加固措施。

3钢结构

钢结构加固方法:钢结构加固的主要方法包括:减少负荷,改变结构计算图,放大部分和原结构单元的联合力量,裂隙发育障碍等。当有成熟的经验,也可使用其他加固方法。

1)改变了结构计算图

这项改变结构计算图形的加固方法是指使用更改负载传播的情况,电力传输方式,节点性质和边界条件,除附件成员和支持,发挥了预应力的考虑,措施等空

间联合行动进行了加固,结构的方法

2)加大构件截面的加固

使用时,加大强化了部分钢材木材,断面形式选择要在加强规范的优势,并认为已经有缺陷和损坏情况。

3)连接加固,加强成员连接

钢结构连接方法,即焊缝,铆钉,普通螺栓和高强度螺栓连接方法的选择,应该的原因其中,目标,应力状态,结构和执行条件的需要,以加强根据结构,并考虑了结构的原始连接方法测定。

钢结构加固一般采用焊接接头连接,高强度螺栓连接摩擦适当的,有基础的时候也可以使用摩擦焊接接头和高强度螺栓的混合连接。当采用焊接接头连接,应使用后评价审批焊接工艺及连接材料。

4)裂纹修复与加固

由于结构的负载影响和材料的选择,结构,制造,工作一再不当等生产,并有休息时间延长或清脆的倾向性裂纹损伤,应尽量修复。在修复之前,必须分析了裂缝的原因和影响的严重性,采取切实可行的治理结构的工作目标为导向或进行加固措施,对不适合使用的维修加固的组成部分,应给予拆除更换

土木工程外文翻译.doc

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姓名: 学号: 10447425 X X 大学 毕业设计(论文)外文翻译 (2014届) 外文题目Developments in excavation bracing systems 译文题目开挖工程支撑体系的发展 外文出处Tunnelling and Underground Space Technology 31 (2012) 107–116 学生XXX 学院XXXX 专业班级XXXXX 校内指导教师XXX 专业技术职务XXXXX 校外指导老师专业技术职务 二○一三年十二月

开挖工程支撑体系的发展 1.引言 几乎所有土木工程建设项目(如建筑物,道路,隧道,桥梁,污水处理厂,管道,下水道)都涉及泥土挖掘的一些工程量。往往由于由相邻的结构,特性线,或使用权空间的限制,必须要一个土地固定系统,以允许土壤被挖掘到所需的深度。历史上,许多挖掘支撑系统已经开发出来。其中,现在比较常见的几种方法是:板桩,钻孔桩墙,泥浆墙。 土地固定系统的选择是由技术性能要求和施工可行性(例如手段,方法)决定的,包括执行的可靠性,而成本考虑了这些之后,其他问题也得到解决。通常环境后果(用于处理废泥浆和钻井液如监管要求)也非常被关注(邱阳、1998)。 土地固定系统通常是建设项目的较大的一个组成部分。如果不能按时完成项目,将极大地影响总成本。通常首先建造支撑,在许多情况下,临时支撑系统是用于支持在挖掘以允许进行不断施工,直到永久系统被构造。临时系统可以被去除或留在原处。 打桩时,因撞击或振动它们可能会被赶入到位。在一般情况下,振动是最昂贵的方法,但只适合于松散颗粒材料,土壤中具有较高电阻(例如,通过鹅卵石)的不能使用。采用打入桩系统通常是中间的成本和适合于软沉积物(包括粘性和非粘性),只要该矿床是免费的鹅卵石或更大的岩石。 通常,垂直元素(例如桩)的前安装挖掘工程和水平元件(如内部支撑或绑回)被安装为挖掘工程的进行下去,从而限制了跨距长度,以便减少在垂直开发弯矩元素。在填充情况下,桩可先设置,从在斜坡的底部其嵌入悬挑起来,安装作为填充进步水平元素(如搭背或土钉)。如果滞后是用来保持垂直元素之间的土壤中,它被安装为挖掘工程的进行下去,或之前以填补位置。 吉尔- 马丁等人(2010)提供了一个数值计算程序,以获取圆形桩承受轴向载荷和统一标志(如悬臂桩)的单轴弯矩的最佳纵筋。他们开发的两种优化流程:用一个或两个直径为纵向钢筋。优化增强模式允许大量减少的设计要求钢筋的用量,这些减少纵向钢筋可达到50%相对传统的,均匀分布的加固方案。 加固桩集中纵向钢筋最佳的位置在受拉区。除了节约钢筋,所述非对称加强钢筋图案提高抗弯刚度,通过增加转动惯量的转化部分的时刻。这种增加的刚性可能会在一段时间内增加的变形与蠕变相关的费用。评估相对于传统的非对称加强桩的优点,对称,钢筋桩被服务的条件下全面测试来完成的,这种试验是为了验证结构的可行性和取得的变形的原位测量。 基于现场试验中,用于优化的加强图案的优点浇铸钻出孔(CIDH)在巴塞罗那的

土木工程专业外文文献及翻译

( 二 〇 一 二 年 六 月 外文文献及翻译 题 目: About Buiding on the Structure Design 学生姓名: 学 院:土木工程学院 系 别:建筑工程系 专 业:土木工程(建筑工程方向) 班 级:土木08-4班 指导教师:

英文原文: Building construction concrete crack of prevention and processing Abstract The crack problem of concrete is a widespread existence but again difficult in solve of engineering actual problem, this text carried on a study analysis to a little bit familiar crack problem in the concrete engineering, and aim at concrete the circumstance put forward some prevention, processing measure. Keyword:Concrete crack prevention processing Foreword Concrete's ising 1 kind is anticipate by the freestone bone, cement, water and other mixture but formation of the in addition material of quality brittleness not and all material.Because the concrete construction transform with oneself, control etc. a series problem, harden model of in the concrete existence numerous tiny hole, spirit cave and tiny crack, is exactly because these beginning start blemish of existence just make the concrete present one some not and all the characteristic of quality.The tiny crack is a kind of harmless crack and accept concrete heavy, defend Shen and a little bit other use function not a creation to endanger.But after the concrete be subjected to lotus carry, difference in temperature etc. function, tiny crack would continuously of expand with connect, end formation we can see without the

土木工程毕业设计外文文献翻译修订版

土木工程毕业设计外文文献翻译修订版 IBMT standardization office【IBMT5AB-IBMT08-IBMT2C-ZZT18】

外文文献翻译 Reinforced Concrete (来自《土木工程英语》) Concrete and reinforced concrete are used as building materials in every country. In many, including the United States and Canada, reinforced concrete is a dominant structural material in engineered construction. The universal nature of reinforced concrete construction stems from the wide availability of reinforcing bars and the constituents of concrete, gravel, sand, and cement, the relatively simple skills required in concrete construction, and the economy of reinforced concrete compared to other forms of construction. Concrete and reinforced concrete are used in bridges, buildings of all sorts underground structures, water tanks, television towers, offshore oil exploration and production structures, dams, and even in ships. Reinforced concrete structures may be cast-in-place concrete, constructed in their final location, or they may be precast concrete produced in a factory and erected at the construction site. Concrete structures may be severe and functional in design, or the shape and layout and be whimsical and artistic. Few other building materials off the architect and engineer such versatility and scope. Concrete is strong in compression but weak in tension. As a result, cracks develop whenever loads, or restrained shrinkage of temperature changes, give rise to tensile stresses in excess of the tensile strength of the concrete. In

土木工程外文翻译参考3篇

学校 毕业设计(论文)附件 外文文献翻译 学号: xxxxx 姓名: xxx 所在系别: xxxxx 专业班级: xxx 指导教师: xxxx 原文标题: Building construction concrete crack of prevention and processing 2012年月日 .

建筑施工混凝土裂缝的预防与处理1 摘要 混凝土的裂缝问题是一个普遍存在而又难于解决的工程实际问题,本文对混凝土工程中常见的一些裂缝问题进行了探讨分析,并针对具体情况提出了一些预防、处理措施。 关键词:混凝土裂缝预防处理 前言 混凝土是一种由砂石骨料、水泥、水及其他外加材料混合而形成的非均质脆性材料。由于混凝土施工和本身变形、约束等一系列问题,硬化成型的混凝土中存在着众多的微孔隙、气穴和微裂缝,正是由于这些初始缺陷的存在才使混凝土呈现出一些非均质的特性。微裂缝通常是一种无害裂缝,对混凝土的承重、防渗及其他一些使用功能不产生危害。但是在混凝土受到荷载、温差等作用之后,微裂缝就会不断的扩展和连通,最终形成我们肉眼可见的宏观裂缝,也就是混凝土工程中常说的裂缝。 混凝土建筑和构件通常都是带缝工作的,由于裂缝的存在和发展通常会使内部的钢筋等材料产生腐蚀,降低钢筋混凝土材料的承载能力、耐久性及抗渗能力,影响建筑物的外观、使用寿命,严重者将会威胁到人们的生命和财产安全。很多工程的失事都是由于裂缝的不稳定发展所致。近代科学研究和大量的混凝土工程实践证明,在混凝土工程中裂缝问题是不可避免的,在一定的范围内也是可以接受的,只是要采取有效的措施将其危害程度控制在一定的范围之内。钢筋混凝土规范也明确规定:有些结构在所处的不同条件下,允许存在一定宽度的裂缝。但在施工中应尽量采取有效措施控制裂缝产生,使结构尽可能不出现裂缝或尽量减少裂缝的数量和宽度,尤其要尽量避免有害裂缝的出现,从而确保工程质量。 混凝土裂缝产生的原因很多,有变形引起的裂缝:如温度变化、收缩、膨胀、不均匀沉陷等原因引起的裂缝;有外载作用引起的裂缝;有养护环境不当和化学作用引起的裂缝等等。在实际工程中要区别对待,根据实际情况解决问题。 混凝土工程中常见裂缝及预防: 1.干缩裂缝及预防 干缩裂缝多出现在混凝土养护结束后的一段时间或是混凝土浇筑完毕后的一周左右。水泥浆中水分的蒸发会产生干缩,且这种收缩是不可逆的。干缩裂缝的产生主要是由于混凝土内外水分蒸发程度不同而导致变形不同的结果:混凝土受外部条件的影响,表面水分损失过快,变形较大,内部湿度变化较小变形较小,较大的表面干缩变形受到混凝土内部约束,产生较大拉应力而产生裂缝。相对湿度越低,水泥浆体干缩越大,干缩裂缝越易产 1原文出处及作者:《加拿大土木工程学报》

土木工程毕业设计外文翻译最终中英文

7 Rigid-Frame Structures A rigid-frame high-rise structure typically comprises parallel or orthogonally arranged bents consisting of columns and girders with moment resistant joints. Resistance to horizontal loading is provided by the bending resistance of the columns, girders, and joints. The continuity of the frame also contributes to resisting gravity loading, by reducing the moments in the girders. The advantages of a rigid frame are the simplicity and convenience of its rectangular form.Its unobstructed arrangement, clear of bracing members and structural walls, allows freedom internally for the layout and externally for the fenestration. Rig id frames are considered economical for buildings of up to' about 25 stories, above which their drift resistance is costly to control. If, however, a rigid frame is combined with shear walls or cores, the resulting structure is very much stiffer so that its height potential may extend up to 50 stories or more. A flat plate structure is very similar to a rigid frame, but with slabs replacing the girders As with a rigid frame, horizontal and vertical loadings are resisted in a flat plate structure by the flexural continuity between the vertical and horizontal components. As highly redundant structures, rigid frames are designed initially on the basis of approximate analyses, after which more rigorous analyses and checks can be made. The procedure may typically inc lude the following stages: 1. Estimation of gravity load forces in girders and columns by approximate method. 2. Preliminary estimate of member sizes based on gravity load forces with arbitrary increase in sizes to allow for horizontal loading. 3. Approximate allocation of horizontal loading to bents and preliminary analysis of member forces in bents. 4. Check on drift and adjustment of member sizes if necessary. 5. Check on strength of members for worst combination of gravity and horizontal loading, and adjustment of member sizes if necessary. 6. Computer analysis of total structure for more accurate check on member strengths and drift, with further adjustment of sizes where required. This stage may include the second-order P-Delta effects of gravity loading on the member forces and drift.. 7. Detailed design of members and connections.

土木工程外文翻译5

PROJECTCOSTCONTROL INTRODUCTION project a corporate image window and effectiveness of the source. With increasingly fierce market competition, the quality of work and the construction of civilizations rising material prices fluctuations. uncertainties and other factors, make the project operational in a relatively tough environment. So the cost of control is through the building of the project since the bidding phase of acceptance until the completion of the entire process, It is a comprehensive enterprise cost management an important part, we must organize and control measures in height to the attention with a view to improving the economic efficiency of enterprises to achieve the purpose. 2, outlining the construction project cost control, the cost of the project refers to the cost and process of formation occurred, on the production and operation of the amount of human resources, material resources and expenses, guidance, supervision, regulation and restrictions, in a timely manner to prevent, detect and correct errors in order to control costs in all project costs within the intended target. to guarantee the production and operation of enterprises benefits. 4, the construction cost control measures cost control measures. Reduce the cost of construction projects means, we should not only increase revenue is also reducing expenditure, or both also increase savings. Cutting expenditure is not only revenue, or revenue not only to cut expenditure, it is impossible to achieve the aim of reducing costs, at least there is no ideal lower cost effective.

土木工程毕业设计中英文翻译

附录:中英文翻译 英文部分: LOADS Loads that act on structures are usually classified as dead loads or live loads are fixed in location and constant in magnitude throughout the life of the the self-weight of a structure is the most important part of the structure and the unit weight of the density varies from about 90 to 120 pcf (14 to 19 KN/m)for lightweight concrete,and is about 145 pcf (23 KN/m)for normal calculating the dead load of structural concrete,usually a 5 pcf (1 KN/m)increment is included with the weight of the concrete to account for the presence of the reinforcement. Live loads are loads such as occupancy,snow,wind,or traffic loads,or seismic may be either fully or partially in place,or not present at may also change in location. Althought it is the responsibility of the engineer to calculate dead loads,live loads are usually specified by local,regional,or national codes and sources are the publications of the American National Standards Institute,the American Association of State Highway and Transportation Officials and,for wind loads,the recommendations of the ASCE Task Committee on Wind Forces. Specified live the loads usually include some allowance for overload,and may include measures such as posting of maximum loads will not be is oftern important to distinguish between the

土木工程岩土类毕业设计外文翻译

学号: 10447425 X X 大学 毕业设计(论文)外文翻译 (2014届) 外文题目 Developments in excavation bracing systems 译文题目开挖工程支撑体系的发展 外文出处 Tunnelling and Underground Space Technology 31 (2012) 107–116 学生 XXX 学院 XXXX 专业班级 XXXXX 校内指导教师 XXX 专业技术职务 XXXXX 校外指导老师专业技术职务 二○一三年十二月

开挖工程支撑体系的发展 1.引言 几乎所有土木工程建设项目(如建筑物,道路,隧道,桥梁,污水处理厂,管道,下水道)都涉及泥土挖掘的一些工程量。往往由于由相邻的结构,特性线,或使用权空间的限制,必须要一个土地固定系统,以允许土壤被挖掘到所需的深度。历史上,许多挖掘支撑系统已经开发出来。其中,现在比较常见的几种方法是:板桩,钻孔桩墙,泥浆墙。 土地固定系统的选择是由技术性能要求和施工可行性(例如手段,方法)决定的,包括执行的可靠性,而成本考虑了这些之后,其他问题也得到解决。通常环境后果(用于处理废泥浆和钻井液如监管要求)也非常被关注(邱阳、1998)。 土地固定系统通常是建设项目的较大的一个组成部分。如果不能按时完成项目,将极大地影响总成本。通常首先建造支撑,在许多情况下,临时支撑系统是用于支持在挖掘以允许进行不断施工,直到永久系统被构造。临时系统可以被去除或留在原处。 打桩时,因撞击或振动它们可能会被赶入到位。在一般情况下,振动是最昂贵的方法,但只适合于松散颗粒材料,土壤中具有较高电阻(例如,通过鹅卵石)的不能使用。采用打入桩系统通常是中间的成本和适合于软沉积物(包括粘性和非粘性),只要该矿床是免费的鹅卵石或更大的岩石。 通常,垂直元素(例如桩)的前安装挖掘工程和水平元件(如内部支撑或绑回)被安装为挖掘工程的进行下去,从而限制了跨距长度,以便减少在垂直开发弯矩元素。在填充情况下,桩可先设置,从在斜坡的底部其嵌入悬挑起来,安装作为填充进步水平元素(如搭背或土钉)。如果滞后是用来保持垂直元素之间的土壤中,它被安装为挖掘工程的进行下去,或之前以填补位置。 吉尔- 马丁等人(2010)提供了一个数值计算程序,以获取圆形桩承受轴向载荷和统一标志(如悬臂桩)的单轴弯矩的最佳纵筋。他们开发的两种优化流程:用一个或两个直径为纵向钢筋。优化增强模式允许大量减少的设计要求钢筋的用量,这些减少纵向钢筋可达到50%相对传统的,均匀分布的加固方案。 加固桩集中纵向钢筋最佳的位置在受拉区。除了节约钢筋,所述非对称加强钢筋图案提高抗弯刚度,通过增加转动惯量的转化部分的时刻。这种增加的刚性可能会在一段时间内增加的变形与蠕变相关的费用。评估相对于传统的非对称加强桩的优点,对称,钢筋桩被服务的条件下全面测试来完成的,这种试验是为了验证结构的可行性和取得的变形的原位测量。 基于现场试验中,用于优化的加强图案的优点浇铸钻出孔(CIDH)在巴塞罗那的几个非对称加强桩的施工过程中观察到混凝土桩沿与测得的变形的结果在常规和描述优化桩。实验证据表明,非对称地增强桩变形比观察到在常规增强那些小。两桩类型(对称和非对称)具有相同的直径,并设计为抵抗基于极限强度设计相同的弯曲力矩;离散杆的尺寸和使用的条全数字的,导致类似的名义抗弯强度。

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