部分斜拉桥的动力性能分析  

Dynamic Analysis of Partial Cable-stayed Bridges

作　　者：李世光[1] 颜志华[1] 

机构地区：[1]铁道第三勘察设计院桥梁处,天津300142

出　　处：《铁道标准设计》2005年第2期41-42,共2页Railway Standard Design

摘　　要：对一座塔梁固结、梁墩分设的部分斜拉桥进行动力性能研究。根据该桥特点 ,分析上、下部结构共同作用和混凝土弹性模量变化对部分斜拉桥动力特性的影响 ,并将分析结果与该桥静动载试验的结果作对比 ,从而得出研究部分斜拉桥动力特性时应综合考虑上下部结构共同作用 ,可以忽略弹性模量变化 (动弹性模量 )影响的结论。A partial cable\|stayed bridge’s dynamic behaviors were analyzed. According to the characteristic of girder fixing with the towers and separating from the piers, a study was conducted on the impact of joint act ion of superstructure and substructure and the change of elastic modulus of conc rete on partial cable\|stayed bridge’s dynamic behaviors. The results are compa red with those obtained by experiment, the conclusion are made from comparison. When partial cable\|stayed bridge’s dynamic behaviors were analyzed, joint ac tion of superstructure and substructure should be taken into account and the cha nge of elastic modulus of concrete can be neglected.

关 键 词：部分斜拉桥 动力特性分析 ANSYS 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]