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| 佛山东平大桥静动力分层次有限元模型修正研究 | |
| 引用本文： | 田仲初,彭涛,陈政清. 佛山东平大桥静动力分层次有限元模型修正研究[J]. 振动与冲击, 2007, 26(6): 162-165 |
| 作者姓名： | 田仲初 彭涛 陈政清 |
| 作者单位： | 1. 中南大学土木建筑学院,长沙,410075;长沙理工大学桥梁与结构工程学院,长沙,410076;湖南大学土木工程学院,长沙,410082 2. 长沙理工大学桥梁与结构工程学院,长沙,410076 3. 湖南大学土木工程学院,长沙,410082 |
| 摘 要： | 提出一种适用于大型桥梁结构联合静动力的分层次有限元模型修正方法，并在佛山东平大桥成桥静载试验和模态试验据的基础上，借助于ANSYS软件中的优化设计平台对该桥进行了静动力分层次有限元模型修正，结果表明该方式物理概念清晰，能充分利用静动力试验信息，减小优化规模．修正后的有限元模型的静力特性和动力特性与试验结果吻合良好，建立了该桥结构健康监测与安全评估的基准有限元模型。 |
| 关 键 词： | 钢箱拱桥 有限元 环境振动 模型修正 静动力试验 |
| 修稿时间： | 2007-04-022007-04-17 |
Study on Dynamic and Static Stratified Finite Element Model Updating for Foshan Dongping Bridge |
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| Tian Zhongchu,Peng Tao,Chen Zengqing. Study on Dynamic and Static Stratified Finite Element Model Updating for Foshan Dongping Bridge[J]. Journal of Vibration and Shock, 2007, 26(6): 162-165 | |
| Authors: | Tian Zhongchu Peng Tao Chen Zengqing |
| Abstract: | A hierarchical modified FE model method adapting to dynamic and static combined analysis for long-span bridges is introduced.Based on the test data on Foshan Dongping bridge,the static and dynamic FE models are modified hierarchically,making use of the optimization function of ANSYS.It indicates that the method has definite physical concept and can fully utilize the test information and reduce the optimization scale.The static and dynamic characteristics of the modified FE model are in good coincidence with the test results.Taking advantage of the method,the baseline FE model of the structural health monitoring and safety evaluation o Foshan Dongping bridge is established. |
| Keywords: | steel box arch bridge finite element method ambient vibration model updating dynamic and static testing |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |