悬索桥的动力模型设计与实验  

Design and Experiment of a Suspension Bridge Model

作　　者：朱宏平[1] 张之勇[2] 

机构地区：[1]华中理工大学土木建筑工程学院 [2]香港科技大学土木及结构工程系

出　　处：《华中理工大学学报》1999年第3期25-27,共3页Journal of Huazhong University of Science and Technology

摘　　要：从理论和实验两个方面分析了一座全长１３５８ｍ的悬索桥的动力特性．动力三维有限单元模型考虑了主梁、塔和索的各阶振型及其耦合振动，通过环境脉动风载荷作用下模型反应的谱分析得到结构动力参数的测试值．The analytical and experimental investigation of dynamic characteristics of a long suspension bridge is described. The vibration modes involving deck, towers and cables in modelling of the three dimensional structure are considered. Ambient test has been used to determine the corresponding measured modes. The good agreement between the theoretical and the test results shows the exactness and correctness of the model design and test.

关 键 词：悬索桥 动力特性 模型实验 模型设计 

分 类 号：U448.25[建筑科学—桥梁与隧道工程]