A Forensic Study of the Collision of a Cargo Ship with the Vincent Thomas Bridge

摘要：

On 27 August 2006,the Vincent Thomas Bridge,a critical 1850-m suspension bridge,located in the metropolitan Los Angeles region had a collision with a large cargo ship,passing under the bridge.This incident left the transportation authorities wondering about the structural integrity of the bridge.Immediately after the accident,the bridge was closed to traffic until structural engineers from the California Department of Transportation completed an analysis of the bridge.A real-time continuous monitoring system has been developed by the researchers at the University of Southern California,and deployed onto the Vincent Thomas Bridge.Using the monitoring system,the dynamic response of the bridge was successfully recorded before and after the incident,as well as during the collision process.The analysis of these valuable data allows the transportation authorities to quantify the effects of the collision on the bridge structural condition,which would otherwise be infeasible with traditional visual bridge inspection approaches.

关键词： structural health monitoring suspension bridges system identification Eigensystem Realization Algorithm Natural Excitation Technique experimental real-time condition assessment

作者: H-B Yun R D Nayeri S F Masri F Tasbihgoo M Wahbeh R Wolfe

作者单位: University of Southern California,Los Angeles,CA.U.S.A.

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）