摘要
拟建办公楼位于高烈度区,首层柱底采用铅芯橡胶隔震支座,应用时程分析法,得出隔震结构设防烈度下的层剪力和倾覆力矩,与非隔震结构设防烈度下的相应值比较,进一步得出隔震后的水平地震影响系数最大值,并验算了罕遇地震下上部隔震结构的变形和支座应力。分析结果表明,采用基础隔震措施可有效减小地震力对上部结构的影响。
The proposed office building is located in a high earthquake intensity region,LRBs are applicated at the bottoms of the columns of the first floor,the time-history analysis program was adopted in seismic isolation design,the horizontal shear force and moment from both the seismic isolation and non-isolation structure during normal earthquake were calculated,also the displacement and stress of the bearing during rare earthquake were investigated.The results show that the horizontal earthquake action upon the super-structure can be obviously reduced by the application of isolated technique of the foundation.
出处
《建筑结构》
CSCD
北大核心
2017年第S1期629-632,共4页
Building Structure
关键词
高层建筑
基础隔震
铅芯橡胶支座(LRB)
时程分析
high-rise building
seismic isolation of foundation
lead rubber bearing(LRB)
time-history analysis
