|
|||||
|
|
| 支井河特大桥考虑结构-地基相互作用模态分析 | |
| 引用本文： | 王学哲,张波,袁长春,李术才,陈亚楼,张庆松,魏建军,李传夫.支井河特大桥考虑结构-地基相互作用模态分析[J].铁道建筑技术,2008(4):17-18,24. |
| 作者姓名： | 王学哲 张波 袁长春 李术才 陈亚楼 张庆松 魏建军 李传夫 |
| 作者单位： | 1. 中铁十三局集团有限公司,长春,130033 2. 山东大学岩土与结构工程研究中心,济南,250061 3. 中国矿业大学,江苏徐州,221008 |
| 基金项目： | 国家科委973资助项目 |
| 摘 要： | 用有限元计算软件ANSYS对支井河特大桥进行了模态分析，考虑了结构-地基的相互作用，地基有限计算区域的人工边界用粘弹性边界实现。结果表明，全桥纵向刚度远大于侧向刚度，前十阶振动主要发生在侧向；考虑了结构-地基相互作用后，与传统假设刚性地基时模态分析结果相比，结构各阶模态的固有频率均有降低，但降低程度不大，说明该桥基础刚度较大，满足刚性基地的假设。 |
| 关 键 词： | 特大桥 结构-地基相互作用 ANSYS 模态分析 |
Zhijinghe Extra-Large Bridge Modal Analysis Considering Structure-Foundation Interaction |
|
| Wang Xuezhe,Zhang Bo,Yuan Changchun,Li Shucai,Chen Yalou,Zhang Qingsong,Wei Jianjun,Li Chuanfu.Zhijinghe Extra-Large Bridge Modal Analysis Considering Structure-Foundation Interaction[J].Railway Construction Technology,2008(4):17-18,24. | |
| Authors: | Wang Xuezhe Zhang Bo Yuan Changchun Li Shucai Chen Yalou Zhang Qingsong Wei Jianjun Li Chuanfu |
| Institution: | Wang Xuezhe, Zhang Bo, Yuan Changchun, Li Shucai, Chen Yalou, Zhang Qingsong, Wei Jianjun, Li Chuanfu(1 China Railway 13th Bureau Group Co. Ltd. , Changehun 130033, China; 2. Oeoteehnieal and Structural Engineering Research Center, Shandong University, Jinan 250061, China; 3. China University of Mining and Technology, Xuzhou 221008, China) |
| Abstract: | The modal analysis of Zhijinghe extra-large bridge uses the finite element calculation software ANSYS, and the structure-foundation interaction is taken into account, in which the artificial boundary is made with the viscous-spring artificiall boundary. Most vibrations occurred in the side direction, which showed that the longitudinal rigidity is greater than the crossrange one ; with the structure-foundation interaction taken into account, the frequencies of bridge are a bit less than traditional ones without taking the structure-foundation interaction into account, which shows that the rigidity of structure is great enough for rigid structure assumption. |
| Keywords: | ANSYS |
| 本文献已被 维普 万方数据 等数据库收录！ | |