多层封闭式人行斜拉桥风洞试验研究的结构动力特性模拟  

Simulation of Structural Dynamical Characteristic of Multi-storied Closed Passenger Cable-stayed Bridge Tunnel Test Study

作　　者：李文勃[1] 金挺[2] 林志兴[2] 

机构地区：[1]上海市政工程设计研究总院,上海市200092 [2]同济大学,上海市200092

出　　处：《城市道桥与防洪》2007年第8期144-146,共3页Urban Roads Bridges & Flood Control

摘　　要：深港皇岗/落马洲人行通道桥的主梁结构形式较为特殊,为三维空间杆系。在全桥气弹模型风洞试验中,必须采用实用的简化模型,该模型的主要振型应与实桥结构动力特性计算结果相同,相应频率满足相似关系。该文通过对深港人行桥风洞试验研究中结构动力特性模拟过程的分析,为同类复杂结构形式的风洞试验研究中结构动力特性模拟提供了较合理的方法。The main girder structure type of Wanggan / Luomazhou Passenger Bridge in Shengang is special. It is the three-dimensional space bow string. In the full-bridge pneumatic elastic model tunnel test, it must be to use the practical simplified model. The main vibrating type of this model is same as the calculation result of the real bridge structural dynamical characteristics. The corresponding frequency meets the similar relation. Through the analysis of the structural dynamical characteristic simulating course in the study of the footbridge tunnel test in Shengang, the article provides the more reasonable method for the simulation of the structural dynamical characteristics in the tunnel test study of the same type of complex structure.

关 键 词：结构动力特性 刚度 风洞试验 全桥气动弹性模型 

分 类 号：TU313[建筑科学—结构工程]