摘要
采用摩擦摆隔震体系对昆明团山幼儿园3层钢框架结构进行了基础隔震设计。通过试验获得了摩擦摆隔震支座的竖向刚度,利用SAP2000对结构进行了动力弹塑性分析。分析结果表明,在地震作用下,隔震结构的层间位移角、层间剪力和楼面加速度响应比非隔震结构减小显著;在罕遇地震下,隔震结构仅出现少量梁铰、未出现柱铰,表明上部结构基本处于弹性,减震效果显著。
Base isolation design for three story steel frame structure of Tuanshan kindergarten in Kunming was conducted by adopting friction pendulum system. The vertical stiffness of the friction pendulum isolator was obtained by experiment, and dynamic elastic-plastic analysis was carried out by SAP2000 software. The analytical results show that the responses of story drift, inter story shear force and floor acceleration in isolation structure was significantly reduced than which in non-isolation structure under earthquake action. Few beam hinges appear in isolation structure and without column hinges under rare earthquake action. It means that isolation structure is still in elastic state under rare earthquake and has a remarkable damping effect.
出处
《建筑结构》
CSCD
北大核心
2016年第11期60-65,共6页
Building Structure
基金
国家科技支撑计划(2013BAK13B00)
关键词
基础隔震
摩擦摆
有限元分析
SAP2000
竖向刚度
减震效果
base isolation
friction pendulum
finite element analysis
SAP2000
vertical stiffness
damping effect
