摘要
采用时程分析法对上海外滩的一幢历史建筑进行了弹塑性分析,以结构的层间位移和主要构件的承载力需求作为性能目标,通过设置防屈曲耗能支撑控制结构在小震和大震下的性能指标,分析表明采用防屈曲耗能支撑后结构的整体性能指标能够满足"小震不坏、中震可修、大震不倒"的抗震设防目标,主要构件的加固量大幅度减少,对原结构的破坏和影响降到最低。
The time history analysis method is used in elasto-plastic analysis for a historical building at Shanghai Bund.With structural storey drift and loading requirement of main components as the character aim,the character index of buckling restrained brace is set with the assumption of under small and large earthquakes.The analysis result showed that by using buckling restrained brace,the integrity of whole structure could realize the anti-seismic aim of 'low damage in small earthquake,repairable under moderate earthquake,low collapsing under strong earthquake'.The amount of reinforcement work on main components is greatly reduced,and the destruction and influence of earthquake on original structure decrease to minimum.
出处
《建筑结构》
CSCD
北大核心
2010年第S2期124-127,共4页
Building Structure
关键词
防屈曲支撑
历史建筑
弹塑性分析
加固修复
buckling restrained brace
historical building
elasto-plastic analysis
strengthening and renovation
