基于结构物理特性的不规则建筑抗震控制的传感器布置  

Sensor placement for the seismic control of the irregular building based on structural physical properties

作　　者：王玉梅[1] 

机构地区：[1]中国地震局地震工程与工程振动重点实验室,中国地震局工程力学研究所,黑龙江哈尔滨150080

出　　处：《地震工程与工程振动》2014年第4期182-187,共6页Earthquake Engineering and Engineering Dynamics

基　　金：中央级公益性研究所基本科研业务专项经费项目(2013B17)

摘　　要：结构控制在土木结构抗震中的应用已经在各种文献中有广泛的研究。本文介绍一种对三维不规则隔振建筑进行结构控制的传感器布置法。该法充分利用了结构的各种物理特性,如通过系数矩阵建立不同位置输入输出的结构状态空间方程;通过模态坐标变换,把方程改写成一种模态坐标表示的、物理意义更清晰的形式,使控制力更小更有效;利用能控性和能观性性质,构造了一个位置指数,用以衡量传感器布置,使较少的传感器更有效地捕获并反馈结构的响应信号,等。地震波输入和结构的响应验证了方法的有效性。Structural control in the seismic protection of civil structures has been widely studied in the literature. This paper introduced a sensor placement method for the control of a 3D irregular base-isolated building. Structural physical properties were extensively used in the method, e. g. , construct the state space equations of motion that reflect different input-output locations through factor matrices; re-write the equations to a modal form through modal coordinate transformation, so that physical properties are more explicit and control efforts are less and more efficient; a sensor placement index was formed based on controllability and observability properties, so that fewer sensors could capture and feedback the structural response signals more effectively, etc. The effectiveness of the proposed methods is confirmed by earthquake inputs and structural responses.

关 键 词：不规则3D建筑 能控性和能观性 传感器布置 模态变换 结构控制 

分 类 号：TU352.1[建筑科学—结构工程] TU311.3