变曲率摩擦摆隔振技术在桥梁抗震中的研究与应用  

Research and application of variable curvature friction pendulum in bridge earthquake

作　　者：项敬辉[1] 冯克岩[1] 孙刚[2] Xiang Jinghui;Feng Keyan;Sun Gang(Tianjin Municipal Engineering Design&Research Institute,Tianjin 300457,China;Tongji University,Shanghai 200092,China)

机构地区：[1]天津市市政工程设计研究院,天津300457 [2]同济大学,上海200092

出　　处：《山西建筑》2018年第8期154-156,共3页Shanxi Architecture

基　　金：天津市城乡建设委员会科技项目(2015-8);天津市交通运输科技发展计划项目(2016A-05)

摘　　要：采用Abaqus软件对摩擦摆支座进行实体建模,分析其低周往复作用下的滞回性能,研究表明,在设计位移范围内骨架曲线基本表现为双线性折线模型,不能体现变曲率摩擦摆支座的强非线性和刚度软化的特点,仅表现为屈服后刚度和有效刚度较小的双线性滞回模型,可以用曲面高度等效的普通摩擦摆支座去模拟变曲率摩擦摆支座。Abaqus was used to analyze the hysteretic behavior o f friction-bearing pendulum bearings under low-cycle reciprocating action.The results show that the skeleton curves in the designed displacem ent r仙ge are basically biline虹.The m odel can not reflect the^and stiffness softening characteristics o f the variable curvature friction pendulum,and it only shows the bilinear hysteresis m odel with low postyield stiffness and effective stiffness,so can use the ordinary frictional stabilizing curve with highly equivalent surface.

关 键 词：滞回性能 骨架曲线 变曲率摩擦摆支座 

分 类 号：U442.55[建筑科学—桥梁与隧道工程]