橡胶支座隔震与摩擦摆支座隔震效果的对比研究  

Comparative research on isolation effect of rubber bearing and friction pendulum bearing

作　　者：路畅 段昊天 韩家山 郑朋飞 杨康 Lu Chang;Duan Haotian;Han Jiashan;Zheng Pengfei;Yang Kang(CSSC Sunrui(Luoyang)Special Equipment Co.,Ltd.,Luoyang Henan 471000,China)

机构地区：[1]中船双瑞(洛阳)特种装备股份有限公司,河南洛阳471000

出　　处：《山西建筑》2024年第19期65-68,102,共5页Shanxi Architecture

摘　　要：为了对比研究摩擦摆支座、橡胶支座对建筑结构的隔震效果,采用通用有限元软件ETABS建立一栋5层框架结构作为计算模型,基于非线性动力时程分析方法,考虑摩擦摆支座滑动摩擦系数和曲率半径的不同组合,从隔震结构自振周期,隔震支座位移、减震系数和层间位移角方面评估了两种不同产品类型的隔震效果;最后对比了支座隔震性能与外形尺寸。数值模拟结果表明:通过调整摩擦摆支座设计参数,能实现与橡胶支座相当甚至更优的隔震效果,且摩擦摆支座外形尺寸较小,为支座安装提供了充足的空间。In order to compare the isolation effect of Friction Pendulum Bearing(FPB)and rubber bearing on building structures,a 5-story frame structure was established by the general finite element software ETABS as a calculation model.Based on the nonlinear dynamic time history analysis method,considering FPB with different sliding friction coefficients configured in different curvature radius,the isolation effect evaluation on the two bearings included the natural vibration periods,isolation bearing displacements,damping coefficients,and story-drifts.Finally,the isolation performance and size of the two bearings were compared.Numerical results demonstrate that FPB has equal or superior isolation effect than that of the rubber bearing by adjusting design parameters.Moreover,the size of FPB is small,which provides sufficient space for bearing installation.

关 键 词：建筑物 隔震 橡胶支座 摩擦摆支座 摩擦系数 曲率半径 

分 类 号：TU352.12[建筑科学—结构工程]