三维多级复合摩擦摆隔震结构有限元分析  

Finite element analysis of isolation structure with three-dimensional multiple composite friction pendulum

作　　者：杨海旭[1] 王巧玲[1] 马伟文[1] 董尘 蔡永明 

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10期1155-1160,共6页Journal of Liaoning Technical University (Natural Science)

基　　金：黑龙江自然科学基金面上项目(E2015057);中央高校基本科研业务费专项资金项目(DL12CB01);黑龙江省教育厅基金项目(12513034);中国博士后科学基金第五十批面上项目(2011M501080)

摘　　要：为考察一种新型三维多级复合摩擦摆的隔震性能,采用Abaqus有限元软件对结构进行时程动力分析,计算罕遇地震下结构的加速度、层间位移等.对比结构隔震前后的地震响应,该复合摩擦摆既有多级摩擦摆可根据抗震设防目标适时调整结构自振周期的特性,又有碟簧的竖向变刚度、隔震耗能能力.研究结果表明:隔震结构基本自振周期被延长,变形主要集中在隔震层;可在水平和竖向同时达到上部结构"整体平动"的良好隔震效果;经分析可忽略水平和竖向隔震的耦合作用,各自分开计算.In order to investigate the isolation performance of a new type of three-dimensional composite friction pendulum, the structure is analyzed using the time-history analysis method with Abaqus, and the acceleration and displacement are provided. Comparing with seismic dynamic response, the friction pendulum not only adjust national vibration periods timely like multiple friction pendulum, but also has variable stiffness and energy dissipation ability of disc spring. The results prove that the basic natural vibration period of base-isolation structure is extended, and its deformation is mainly focused on the isolation layer; the system achieves a good isolation effect that make structure translate integrally in both directions; the coupling effect of horizontal and vertical isolation can be neglected and the dynamic response could be calculated separately.

关 键 词：隔震 三维复合摩擦摆 有限元分析 基本自振周期 耦合 

分 类 号：TU352.12[建筑科学—结构工程]