Technology and Application for Modal testing of Cable-stayed Bridge

摘要：

　　In the cable-stayed bridge damage identification index based on the dynamic characteristics, it is the key and premises for cable-stayed bridge damage identification using dynamic index, how to extract the modal of structure exactly through optimal placement of sensors.This article uses simulated annealing, In line with the modal assurance criterion, extract mechanical analysis data of Zhangzhen cable-stayed bridge ANSYS finite element model and obtain optimized acceleration sensor layout scheme of main beam.Based on this optimization scheme we carry out a dynamic characteristics test on Zhangzhen cable-stayed bridge.Through the comparison between observation results and calculation results, we find they are very closely.To verify that the simulated annealing algorithm based on modal assurance criterion used in cable-stayed bridge acceleration sensors optimized is effective, viable, and correct.

关键词： Modal assurance criterion Simulated annealing algorithm Acceleration sensor placement optimization Field dynamic characteristics test

作者: Yi Song Zou Quan Hui Chang Wei Peng

作者单位: School of civil engineering and architecture,Chongqing Jiao tong University,Chongqing,China School of civil engineering and architecture,Chongqing Jiao tong University,Chongqing,China;Institut Institute of Technology,Zhejiang University,Ningbo,China

会议类型: 国际会议

会议名称: the 2012 International Conference on Vibration, Structural Engineering and Measurement (2012年振动、结构工程与测量国际会议(ICVSEM2012))

会议地点: 上海

会议语种:英文

页码: 396-400

在线出版日期: 2012-10-19（万方平台首次上网日期，不代表论文的发表时间）