桥梁上部结构落梁是桥梁最严重的震害形式之一。
The unseating of bridge superstructure is one of the most serious earthquake damage of girder Bridges.
桥梁上部结构的综合花车，以提供稳定的和额外的浮力。
The bridge superstructure is integrated with floats to provide stability and additional buoyancy.
文章将分析桥梁上部结构贴钢法加固的原理和设计方法。
This article analyzes the principles and design of the binding steel strengthening method in the superstructure strengthening of bridge.
在加快基础建设的新形势下，桥梁上部结构的冬季施工势在必行；
Under the new situation of accelerating the construction of foundation, the winter construction of the top structure of the bridge is imperative;
体外预应力加固法由于众多的优点而成为桥梁上部结构加固的首选方法。
The external prestressing strengthening method has become the first-selected method in the bridges upper structure strengthen because of its numerous advantages.
摘要近年，超高车辆撞击桥梁上部结构问题成为城市交通安全的重要威胁。
Recently the collisions between over-high trucks and bridge superstructures have become a serious threaten to the safety of city traffic.
摘要：近年，超高车辆撞击桥梁上部结构问题成为城市交通安全的重要威胁。
Abstract: Recently the collisions between over-high trucks and bridge superstructures have become a serious threaten to the safety of city traffic.
并从试验及理论计算中获取一些描述梁式RC桥梁上部结构技术状态的数据。
In addition, some graphs describing the technical states of the RC beam bridge superstr…
并从试验及理论计算中获取一些描述梁式RC桥梁上部结构技术状态的数据。
In addition, some graphs describing the technical states of the RC beam bridge superstruct…
在设计中，桥梁上部结构的计算着重分析了桥梁在施工过程中，恒载内力的计算。
In the design, in construction process of the structural calculation of the upper part in the continuous bridge, the permanent load were simulated and calculated.
由于周围大气温度的变化，桥梁上部结构产生的温度变形是一个客观存在的事实。
Due to the atmosphere temperature change, the bridge superstructures' thermal deformation exist impersonality which is a fact.
车辆动力作用引起桥梁上部结构的振动可能使结构构件产生疲劳，降低其强度和稳定性；
The upper structure vibration of bridge caused by the vehicles driving force may lead the structural component fatigue or reduction of the strength and stability.
介绍对梁体进行的检测、荷载试验，以及对桥梁上部结构及开裂截面的实际受力状况的分析。
In this paper, the inspection, load tests for the beams and analysis of actual mechanical behavior of the superstructure and cracked sections thereof are presented.
近年，超高车辆撞击桥梁上部结构的事故频繁发生，严重威胁桥梁结构安全与城市交通运行。
Recently, accidents of collisions between over-high trucks and bridge superstructures happen frequently, which seriously threaten the safety of Bridges and city traffic system.
提出将响应面方法和非线性有限元分析结合起来对桥梁上部结构的体系可靠度进行分析的新方法。
A new method aiming to incorporate the response surface method into the computation of system reliability for composite Bridges is proposed in this paper.
为了防止桥梁结构的倒塌和保护桥梁上部结构不发生破坏，桥墩结构的抗震性能凸显的尤为重要。
To prevent collapse of the bridge structure and protect security of superstructure, the anti-seismic capability of bridge piers become particularly important.
随着预应力在桥梁施工中的普遍应用，预应力张拉控制已成为桥梁上部结构施工中的一道重要工序。
With the common application of prestress in bridge construction, the strain-pull controlling has become an important working procedure during the upper structure construction of bridge.
将桥梁上部结构中常见的混凝土腹板更新为波纹钢腹板，以达到减轻梁体自重和充分发挥各种材料性能优势的目的。
Replacing the usual concrete web with the corrugate steel web in the upper part construction of Bridges can both reduce the dead weight of beams and bring the function of all materials into full play.
进而通过忽略次要影响因素，对车辆、桥梁受力行为进行合理简化，建立了超高车辆-桥梁上部结构碰撞的简化计算模型。
Then by ignoring the unimportant influencing factors, a simplified model for the collision between over-high trucks and bridge superstructures is developed.
分析结果表明，超高车辆撞击使桥梁上部结构产生整体变形损伤、局部破坏甚至落梁破坏，撞击荷载包括撞击冲量和局部冲击力，不同车型撞击荷载差别较大。
Study results show that the damage modes of bridge superstructures impacted by over-high trucks include global deformation damage, local damage and girder-falling.
因此，桥梁上部采用先简支后连续梁结构越来越多。
Therefore, the upper bridge with simply supported continuous beam structure more and more.
因此，桥梁上部采用先简支后连续梁结构越来越多。
Therefore, the upper bridge with simply supported continuous beam structure more and more.
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