摘要
基础隔震时上部结构水平地震作用分布和层间地震剪力分布与基础固定时的分布不同，结构最大剪力有上移的现象，文中提出用水平地震作用分布系数来描述这种情况，并作为一种对隔震结构层间地震剪力分布的简化计算方法，还分别研究了基础滑动摩擦隔震和（铅芯）钢板－橡胶叠层垫块隔震两种方法的不同隔震参数对上部结构层间地震剪力分布的影响．
The results of dynamic analysis of base isolation structures show that the maximum shear force occurs in high levels of the isolated structures than that of the normal structures, so an earthquake force distribution parametre is proposed to quantify this difference and a simple method which estimates the earthquake force distributions and the interstorey shear force distributions is presented. The effects of parametres of two isolation systems, the sliding base isolation and the steel-plate laminated rubber pad (with or without lead plug) base isolation, on t,he interstorey shear distributions are also studied.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
1996年第1期1-5,共5页
Journal of Tongji University:Natural Science
关键词
隔震结构
地震剪力
基础
分布
Earthquake shear force distribution
Base isolation
Simple method
