Its role is to support a bridge structure, reaction forces transfer to the pier, and to ensure that the bridge span structure under load to meet the design requirements of the deformation.
它的作用是将桥跨结构的支承反力传递给墩台，并保证桥跨结构在荷载作用下能满足设计要求的变形。
To install the crane span before installation, camber, level of metal structure of main girder bending, trolley rail height difference, gauge deviation, diagonal bridge survey.
安装前要对起重机安装跨度，金属结构主梁的拱度、水平旁弯，小车轨道高低差、轨距偏差，桥架对角线等进行测量。
As widespread construction of long-span Bridges and extensive application of efficient construction materials, the problems of bridge structure vibration have become increasingly prominent.
大跨度桥梁的大量兴建和高效能建桥材料的广泛应用，桥梁结构的振动问题日趋突出。
Relevant conclusions of structure deformation are gotten through the analysis of deformation curve of static load test of bridge span.
通过对该桥梁跨度静荷载检验变形曲线进行分析，得出了其结构变形的有关结论。
There're some specializations of the cable-stayed bridge in its dynamic behavior, because of long span and flexibility of structure than others general engineering structure.
斜拉桥由于其跨度大、结构柔，在动力行为方面有不同于一般工程结构的特殊性。
The long-term deflection of Long Span Prestressed Concrete Box-girder Bridge(LSPCBB) is getting more and more serious in terms of structure safety.
最后，对桥梁设计计算、桥梁混凝土施工及箱梁下挠的防治技术进行论述，并对开展控制结构长期下挠的研究提出了建议。
The paper analyzed the problems of common structure and design for middle and small span bridge, proposed some advice from standards, design methods and common structure characteristics etc.
分析了中小跨径桥梁常用结构及设计中存在的问题，针对问题从规范标准、设计方法、常用结构特点、荷载标准确定等方面提出了建议。
With the finite element software, the influence on the structure is calculated of metro excavation under large span obliquely intersected framed underpass bridge constructed with jacking method.
借助大型有限元分析软件，对大跨度斜交顶进框架式地道桥底板下开挖地铁对地道桥结构的影响进行较深入的探讨。
With the span of bridges becoming longer and longer, the static and dynamic problems of the bridge structure induced by wind are more and more serious.
随着桥梁跨度的不断增大，桥梁结构在风荷载作用下的动、静力问题日益突出。
Cracking is quite common in prestressed concrete continuous box girder bridge, which influences appearance of component, life span of using, and even safety of structure,.
预应力混凝土连续箱梁桥的开裂可以说是“多发病”，影响着构件的外观、使用寿命，甚至结构安全。
Underwater placement of bridge's platform and cradle construction method for multi-span continuous box-girder structure constitute the construction feature of Fuyang bridge in Zhejiang province.
以水下浇筑大桥承台和采用挂篮法施工多跨连续箱梁结构是浙江富阳大桥工程的重头戏。
The long-span hybrid bridge of steel arch and rigid frame is a type of new bridge structure system.
大跨钢拱与刚构协作桥梁是一种新型的组合体系桥梁，张拉系杆是调整这种体系内力与线形的重要方法。
Abutment-a structure that supports the end of a bridge span and provides lateral support for fill material on which the roadway rests immediately adjacent to the bridge.
桥台-指支撑桥跨端部并为承载紧邻桥梁的道路的填方材料提供横向支撑的结构物。
Through observing the experimental bridge, which is designed by combined rigid structure in side span, the expected design effect has been obtained.
通过实桥试验使用，并经长期观测，完全达到预期设计的效果。
The author recommends a brand new long-span bridge structure in high intensity earthquake areas—consecutive box girder rigid frame bridge with hollow abdomen.
对于高烈度地震区大跨桥梁的设计推荐了一种全新的桥式方案——空腹式箱梁连续刚构，该结构是钢管桁架和预应力混凝土板的组合结构。
The cable is the important component of suspension bridge. Determination of initial states of cable of large span suspension bridge is the key part of the upper structure construction.
主缆是悬索桥的重要受力构件，精确计算其空缆线形是悬索桥上部结构施工成败的关键。
In this structure, the natural bridge support bar in the middle of two free pile after a wide span can be achieved.
在这种结构中，天然支架桥在两个自由杆的中间加桩后可达到很宽的跨度。
The average risk of structure in construction period is far higher than one in use period. To make the risk analysis study is very necessary in the construction of large-span cable-stayed bridge.
结构在施工期的平均风险远远高于使用期，开展大跨度斜拉桥施工期间的风险分析研究是十分必要的。
New stiffening girder suspension bridge adopts a castellated steel and concrete composite structure, which has obvious advantages of structural stability in light load span suspension bridge.
新型加劲梁悬索桥采用了蜂窝型加劲梁组合结构，在轻荷载大跨径悬索桥中有较明显的结构稳定性优势。
Suspension bridge as a long span, flexible structure, because of its sensitivity to wind, the stability under wind has become a key factor in design and construction.
悬索桥作为一种大跨径柔性结构，由于其对风作用的敏感性，抗风稳定性已经成为影响悬索桥设计施工的关键控制因素。
The bridge has characteristics of long span and complexity in structure and construction techniques.
该桥具有跨度大，结构和施工工艺复杂等特点。
On the basis of structure reliability principles, this essay studies the reliability of prestressed-concrete rigid-frame bridge with high-pier and large-span during construction period.
本文依据结构可靠度理论，对高墩大跨预应力混凝土刚构桥的施工期桥墩可靠度进行研究。
The underground structure vibration effects of long-span bridge caused by blasting vibration are important factors to affect the safety of bridge.
爆破震动引起的大跨度桥梁地下结构的振动效应是影响桥梁安全的重要因素。
The steel-structure bridge deck is three-span, and each one is welded separately with bolt connection.
三跨的人行桥的桥面为钢结构，总共三段，每段分开焊接制作，通过螺栓连接。
The domestic steel box beam for long-span suspension bridge is mostly welded structure at present, which features complex structure, a great deal of penetration welds, difficult manufacture.
目前，国内大跨径悬索桥钢箱梁大多为全焊结构，具有结构复杂、熔透焊缝多，制造难度大等特点。
In this paper, static load experiments are illustrated and the reliability of CFRP reinforcement technology, used for reinforcing beam slab structure of large span bridge, is discussed.
文章结合对大跨度桥梁的梁板结构加固处理前后的静载试验，探讨了大跨度梁板结构应用粘贴碳纤维加固处理技术的可靠性。
In this paper, static load experiments are illustrated and the reliability of CFRP reinforcement technology, used for reinforcing beam slab structure of large span bridge, is discussed.
文章结合对大跨度桥梁的梁板结构加固处理前后的静载试验，探讨了大跨度梁板结构应用粘贴碳纤维加固处理技术的可靠性。
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