【摘要】 为探讨具有NES的复合摩擦摆隔震性能,采用ABAQUS软件对一幢三层框架结构进行有限元模拟分析,选取EL-Centro波、Accel人工波、Taft波,计算结构在不同震级、不同加速度峰值地震作用下的响应,并对隔震前后结构的动力反应进行对比.分析结果表明:具有NES的复合摩擦摆隔震支座可以有效地减小结构在地震作用下的加速度响应,并使结构产生整体平移,减小了结构的层间位移角,同时增大了结构自振周期,远离了一般场地的卓越周期,结构可以快速有效地吸收消耗地震能,将地震能更多地转化掉,从而达到隔震的效果.更多还原

【Abstract】 In order to investigate the isolation performance of complex FPS based on NES,this paper carried out a finite element analysis on a three-tier framework with ABAQUS software,and the response of structure in different seismic magnitude and peak acceleration was calculated under EL-Centro wave,Accel artificial wave and Taft wave,and the dynamic response of the structure were compared before and after isolation.The results show that isolators of complex FPS based on NES can reduce acceleration response of the structure under earthquake effectively,make the structure generated translation,reduce the structural layer between the displacement angle,increase the structural vibration period as well which is away from the predominant period of the general venue,absorb and consume the seismic energy quickly and effectively,then transform the seismic energy,so as to achieve the effect of isolation.更多还原