摘要
通过对一个采用钢框架结构进行增层的工程的振动特性、地震反应、楼层抗剪承载力等参数的分析研究,揭示了钢框架增层对原结构的影响机理,同时判明了原结构需要抗震加固的部位,进而确定原结构的抗震加固方案。通过运用增大截面法及钢支撑加固法,使增层结构的抗震性能满足规范要求,阐明采用钢框架增层是一种安全、经济的增层方法。
Vibration characteristics,seismic response,shear capacity and other parameters of a project with steel-frame structure adding storey were analyzed and studyedt,he influence mechanism of the adding storey on the original structure was revealed.In the same time,in according with the parts of seismic strengthening,the reinforcement measures were confirmed.Through enlarging the section’s method and the external steel-bracing method,the seismic performance of new structure can satisfy the standard requirement.In conclusion,using steel-frame adding storey is a safe and economic method.
出处
《建筑结构》
CSCD
北大核心
2010年第S2期25-29,共5页
Building Structure
关键词
钢框架
增层
抗震验算
抗震加固设计
steel-frame
adding storey
seismic checking
seismic strengthening design
