The influences of train vibration upon concrete of expressway bridge girders spanning railway line during casting of the concrete are a problem that cannot be neglected.
跨越铁路的高速公路桥梁在灌筑混凝土期间列车振动对桥梁梁体混凝土的影响是一个在施工中不容忽视的问题。
The transverse stiffness of medium-span railway bridge becomes insufficient and its transverse vibration becomes larger commonly under the raised speed freight train.
中等跨度铁路桥梁在提速货车作用下，普遍出现横向刚度不足，横向振动超限问题，严重影响了运营安全和提速计划的顺利实施。
By examining the test results of vibration for a few Bridges, it is found that train formation has a strong effect on bridge vibration responses.
通过对两座桥梁振动测试结果的分析，发现列车编组对桥梁振动响应很有影响，且这一现象过去常常被忽略。
Two parameter optimization formulas of multiple tuned mass dampers(MTMD)was introduced. Vertical vibration of bridge was controlled in the train-bridge coupling vibration by the two methods.
介绍了两种多重调谐质量阻尼器（MTMD）的参数优化公式，并采用两种方法对车桥耦合振动中桥梁的竖向振动进行了控制。
The fundamental problem in the establishment and solution to the spatial vibration equation of train-track (bridge) time-varying system at home and abroad is analyzed in detail.
分析了国内外在列车-轨道（桥梁）时变系统空间振动方程的建立及其求解过程中存在的根本问题。
By simulating the track irregularities with trigonometric series method, the train-bridge coupling vibration equations are established based on the combined modal of train formation and the bridge.
利用三角级数法模拟了轨道的不平顺，采用列车编组和桥梁组合的模型，建立了车桥耦合振动方程。
To obtain rail irregularity samples for train-bridge vibration control and stochastic analyses, a simulation method of irregularities at all axles of a train was investigated.
为获得各轮轴处轨道不平顺，用于列车-桥梁振动控制和随机振动分析，研究了轨道不平顺的模拟方法。
The transverse track irregularity is mostly treated as the exciting source of transverse vibration of train-bridge (or track) time-varying system at home and abroad.
国内外在列车-轨道时变系统横向振动计算中，大多采用轨道横向不平顺作为列车-桥梁(轨道)时变系统横向振动的激振源。
In the paper, a method for spatial vibration analysis of the system of train and long span steel trussed cable-stayed bridge is presented.
本文提出了一种分析列车、大跨度钢桁梁斜拉桥系统空间振动的方法。
By examining the test results of vibration for a few Bridges, it is found that train formation has a strong effect on bridge vibration responses.
利用三角级数法模拟了轨道的不平顺，采用列车编组和桥梁组合的模型，建立了车桥耦合振动方程。
In this paper, the fundamental problems in the calculation of transverse vibration of train bridge and train track time varying system are expounded.
本文论述了车桥及车轨时变系统横向振动计算中存在的根本问题。
In the paper, one of the finite element analytical models for spatial vibration of the train and deck steel plate girder bridge system is presented.
以结构力学为基础，利用加固前对钢板梁桥测得的横向位移，提出了一种通过反算出列车等效横向摇摆力来计算加固后钢板梁桥的横向位移的方法。
In the paper, one of the finite element analytical models for spatial vibration of the train and deck steel plate girder bridge system is presented.
以结构力学为基础，利用加固前对钢板梁桥测得的横向位移，提出了一种通过反算出列车等效横向摇摆力来计算加固后钢板梁桥的横向位移的方法。
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