结构薄弱层基于EIMD的控震性能研究

Research on seismic control performance of structural weak layer based on EIMD

本文基于滑移模态控制算法提出一种可行的新型电磁质量阻尼器(Electromagnetic Inertial Mass Damper,EIMD)—不规则结构体系的半主动控制策略。以含薄弱层刚度竖向不规则结构的两种不同结构模型作为研究对象,验证地震作用下所提控制策略的有效性和可行性,仿真结果表明:①对比薄弱层及相邻层放置一个阻尼器和两个阻尼器的控制效果,阻尼器数量和位置优化会提高含结构的整体控震性能;②采用滑模控制算法对结构进行半主动控制后,结构的震动响应大幅度减小,表明该类阻尼器基于滑移模态控制算法的半主动控震策略的可行性和有效性。

In this paper,a feasible semi-active control strategy of EIMD—irregular structure system is proposed based on the sliding mode control algorithm.With weak layer stiffness of two different structure model of vertical irregular structure as the research object,under the action of earthquake to verify the feasibility and effectiveness of the control strategy,the simulation results show that:①compared to the weak layer and adjacent layer placed a damper control effect,and the two dampers damper number and location optimization to enhance the overall control of the containing structure seismic performance;②After the semi-active control of the structure is carried out by the sliding mode control algorithm,the vibration response of the structure is greatly reduced,which indicates the feasibility and effectiveness of the semi-active control strategy based on the sliding mode control algorithm.