Dynamic test methods for natural frequency of footbridge  

作　　者：王彩锋 高世桥 金磊 

机构地区：[1]School of Mechatronical Engineering,Beijing Institute of Technology

出　　处：《Journal of Measurement Science and Instrumentation》2013年第3期218-222,共5页测试科学与仪器（英文版）

基　　金：Ministry of Science and Technology of China for sponsoring the"Cooperation Research on the Dynamic Safety and Serviceability of Public Structures Servicing for Human"(No.2010DFB74280)between Beijing Institute of Technology and Ruhr-University Bochum

摘　　要：Using environmental random vibration as the excitation,traditional accelerometer method,non-contact video method and non-contact laser method were employed to determine the natural frequency of Kunyu River footbridge.All the results of these three methods are close to 2.70 Hz,which are concordant with each other and hence credible.

关 键 词：test method NON-CONTACT natural frequency amplitude-frequency curveCLC number：TU997 Document code：AArticle ID：1674-8042（2013）03-0218-05 

分 类 号：U446.1[建筑科学—桥梁与隧道工程]