摘要
结构在强震作用下要进入弹塑性,其地震反应与结构的延性和超强有关。结构的延性和超强能力可用结构影响系数R反映,通过对三个K型偏心支撑钢框架用Pushover方法分析得出了其结构影响系数,就所分析的三个算例而言,现行《建筑抗震设计规范》(GB50011-2001)对K型偏心支撑钢框架的水平地震作用取值偏大。
The structure will come into elastic-plastic state under the intense earthquake and the response in the earthquake is correlated with the structural over-strength and structural ductility which can be reflected by the struc, tural influencing coefficient R which has been obtained by the Pushover analysis of the three eccentrically K-braced steel frames. Based on the three eccentrically K-braced steel frames, the present Code for Seismic Design of Building（GB50011-2001 ）sets higher scale for horizontal earthquake action of the eccentrically K-braced steel frame.
出处
《苏州科技学院学报（工程技术版）》
CAS
2007年第3期10-14,共5页
Journal of Suzhou University of Science and Technology （Engineering and Technology）
基金
国家自然科学基金资助项目(50578099)
关键词
结构抗震
偏心支撑钢框架
结构影响系数
PUSHOVER方法
earthquake resistance
eccentrically K-braced steel frames
structural influencing coefficient
Pushover analysis
