混凝土连续梁易损性分析及健康监测传感器优化布设  

Vulnerability analysis of a PC continuous girder bridge and optimization of SHM sensor allocation

作　　者：刘冬[1] 孙利民[1] 于刚 

机构地区：[1]同济大学土木工程防灾国家重点实验室,上海200092 [2]OPUS

出　　处：《内蒙古公路与运输》2017年第3期1-5,共5页Highways & Transportation in Inner Mongolia

基　　金：国家科技支撑计划项目(2012BAJ11B00)

摘　　要：以某预应力混凝土连续箱梁桥为工程背景,研究了已建桥梁在发生结构性能退化、车辆超载和船撞等不同损伤下结构的易损性,通过分析得到了易损性较高的构件集合,确定了不同损伤场景下采用健康监测技术时需要重点监测的内容,并就传感器布设方案给出建议。Aiming at a PC continuous box bridge, this paper focuses on the vulnerability of existing structures suffering from various damages, such as structural degradation, vehicle overloading and vessel collisions. By quantitatively analyzing vulnerability of the structures, the authors determine the monitoring contents and propose the optimal scheme for sensors allocation, when a structural health monitoring system is adopted.

关 键 词：易损性 桥梁健康监测系统 传感器优化布设 连续箱梁 超载 混凝土退化 船撞 

分 类 号：U491[交通运输工程—交通运输规划与管理]