FE MODEL UPDATING OF BRIDGE BASED ON HIGH ORDER RESPONSE SURFACE METHOD

摘要：

In this paper,based on high order response surface method,the FE model updating of bridge structures were considered and conducted. The following works were included: (1) The basic concepts,calculation method and steps of finite element model updating using response surface method were systematically introduced. (2) The ambient vibration testing on a three-span continuous girder model bridge were conducted,and the modal parameters,such as the frequencies,damping ratios,and modal shapes were extracted from the testing.(3) The three order response surface model of the three-span continuous girder model bridge were proposed,and the model updating was conducted.(4) Based on the three order response surface model,the initial FE model of the model bridge with three-spans were updated and the results from the updated model were compared with those from the testing. It can be concluded that the updated FE model has high precision and more practical,and the updated model can be used as the reference for the further model validation process,health monitoring and safety valuation.

关键词： Response surface method Finite element model updating Ambient vibration testing Continuous model bridge with three-spans Design of experiments Parameter screening Response surface model verification

作者: Zong Zhou-Hong Lin Xiao-Song Xia Zhang-Hua

作者单位: College of Civil Engineering,Southeast University,Nanjing 210096,P.R.China Departmentof Civil Engineering, FuJian University of Technology, Fuzhou 350108,P.R.China College of Civil Engineering,Fuzhou University,Fuzhou 350108,P.R.China

会议类型: 国际会议

会议名称: The Eleventh International Symposium on Structural Engineering(第十一届结构工程国际研讨会)

会议地点: 广州

会议语种:英文

页码: 1341-1347

在线出版日期: 2010-12-01（万方平台首次上网日期，不代表论文的发表时间）