Finite Element Modal Updating of Shibanpo Bridge Using Experiment Test Results

摘要：

The model of the newly constructed Bridge,with the longest main span(330 m)among the continuous rigid bridges,is built and updated by a technique developed by this paper using static and dynamic measurement data.The objective function is built up using the least-squares algorithm and the parameters are chosen mainly based on sensitivity.Then a technique based on the sensitivities of parameters and sequence quadratic programming(SQP)method is presented to update the model.A numeric simulation to the real bridge model demonstrates the parameters can converge to true values only after three times to recalculate the sensitivities.The prediction of the updated model by measurement data has achieved a good correlation with the experiment test results.

关键词： Model updating Parameter optimization SQP Sensitivity

作者: Gang Liu Pu Yang Zongming Huang

作者单位: College of Civil Engineering,Chongqing Univiversity,Chongqing,China

会议类型: 国际会议

会议名称: The World Forum on Smart Materials and Smart Structures Technology(SMSST07)(2007年世界智能材料与智能结构技术论坛)

会议地点: 重庆·南京

会议语种:英文

在线出版日期: 2007-05-01（万方平台首次上网日期，不代表论文的发表时间）