节点文献
高铁站房健康监测中传感器优化布置研究
Research on optimal sensor placement of health monitoring on high-speed rail station
【摘要】 高铁站房形式多样,结构复杂,节点众多,其动力及静力特性的获取均有重要意义。本文分别采用基于结构动力性能及静力性能的传感器布置方法,对高铁站房加速度及应变传感器的布置规律进行了研究。针对高铁站房的结构特点,根据杆件位置将其分成主要构件及一般构件,构建位移控制目标函数,采用基于蒙特卡洛法的构件敏感性分析进行应变传感器优化布置,采用有效独立法进行加速度传感器优化布置。结果表明,对主体结构起到主要支撑作用的竖向构件以及水平构件的根部位置布置应变传感器,结构模态位移较大位置布置加速度传感器,体现了结构的模态特征。研究成果可为高铁站房及其他公共建筑的传感器优化布置提供参考。
【Abstract】 High speed railway station building has various forms,complex structure and many joints,so it is important to obtain its dynamic and static characteristics. Therefore,in this paper,the sensor layout method based on the dynamic and static performance of the structure is used to study the layout of acceleration and strain sensors in high-speed rail station. According to the structural characteristics of high-speed railway station building,the components are divided into main components and general components in the light of the positions,and then the displacement control objective function is constructed. The sensitivity analysis method based on Monte Carlo method is used to optimize the layout of strain sensors,and the effective independence method is used to optimize the layout of acceleration sensors. The results show that strain sensors are arranged at the root of vertical members and horizontal members,and acceleration sensors are arranged at the position of larger modal positions,which reflects the modal characteristics of the structure. The research results can provide reference for the optimal sensor layout of high-speed railway station buildings and other public buildings.
【Key words】 high-speed rail station; health monitoring; sensor placement; effective independence method; monte carlo method; sensitive analysis;
- 【文献出处】 建筑科学 ,Building Science , 编辑部邮箱 ,2021年01期
- 【分类号】TU248.1;TU317
- 【被引频次】3
- 【下载频次】277