某框筒结构的摩擦摆隔震设计与参数优化研究  

Research on friction pendulum isolation design and parameter optimization of a frar tuubbee ssttrruuccttuurree

作　　者：曾德民 庞洋 王硕 雒元嘉 王瀚星 Zeng Demin;Pang Yang;Wang Shuo;Luo Yuanjia;Wang Hanxing(School of Civil and Transportation Engineering,Beijing University of Civil Engineering and Architecture,Beijing 100044,China)

机构地区：[1]北京建筑大学土木与交通工程学院,北京100044

出　　处：《建筑科学》2024年第5期1-10,共10页Building Science

摘　　要：一直以来橡胶支座隔震技术在我国建筑隔震结构中占据主流地位,但近年来摩擦摆隔震支座因其通过摩擦耗能和高自复位能力的特点,逐渐受到工程技术人员的关注。本文以8度区某高层框筒办公楼为例,进行了摩擦摆支座的隔震设计分析,并与橡胶隔震支座方案进行了对比。研究结果表明,两种隔震方案的水平向减震系数比较相近,均能取得显著的隔震效果,但摩擦摆方案大震下隔震位移更小,具有一定优势。该研究进一步对摩擦摆支座参数包括曲率半径、摩擦系数优化分析,可为摩擦摆支座隔震设计提供参考。Rubber bearing isolation technology has always occupied the mainstream position in China's building isolation structure.In recent years,friction pendulum isolation bearing has gradually attracted the attention of engineers and technicians because of its characteristics of friction energy dissipation and high self-centering ability.In this paper,a high-rise frame tube office building in 8 degree area is taken as an example to analyze the isolation design of friction pendulum bearing,and compared with the rubber isolation bearing scheme.The results show that the horizontal damping coefficients of the two isolation schemes are similar,and both of them can achieve significant isolation effect.However,the friction pendulum scheme has smaller isolation displacement under large earthquakes and has certain advantages.This study further optimizes the parameters of friction pendulum bearing including curvature radius and friction coefficient,which can provide reference for the isolation design of friction pendulum bearing.

关 键 词：摩擦摆支座 橡胶隔震支座 摩擦系数 隔震设计优化 

分 类 号：TU352.1[建筑科学—结构工程]