具有NES的复合摩擦摆隔震性能有限元分析  

Finite element analysis of the isolation performance of complex friction pendulum system based on NES

作　　者：杨海旭[1] 马伟文[1] 蔡永明 王巧玲[1] 

机构地区：[1]东北林业大学土木工程学院,黑龙江哈尔滨150040 [2]江苏久信医疗科技股份有限公司,江苏常州213022

出　　处：《辽宁工程技术大学学报（自然科学版）》2015年第9期1031-1036,共6页Journal of Liaoning Technical University (Natural Science)

基　　金：中央高校基本科研业务费专项资金项目(DL12CB01);黑龙江省教育厅科学技术研究基金项目(12513034);中国博士后科学基金第五十批面上基金项目(2011M501080)

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.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.

关 键 词：隔震性能 摩擦摆 非线性能量阱 靶能量传递 立方体刚度 有限元分析 耗能 模态分析 

分 类 号：TU375.4[建筑科学—结构工程]