摘要
不同结构体系的设计地震作用与结构影响系数有关。结构影响系数取决于结构延性、强度储备等。采用ANSYS软件及大量的地震波记录,对基于《建筑抗震设计规范》(GB50011-2001)设计的9个单斜杆偏心支撑钢框架结构进行增量动力分析,进而对其结构影响系数进行研究,分析结构层数、跨度、跨数和自振周期变化与结构影响系数的关系,提出结构影响系数建议值,为工程设计提供参考。
The design earthquake action of various structural systems is affected by the seismic behaviour factor,and the factor depends on the structural ductility and overstrength.Using the ANSYS software and the records of seismic waves,the incremental dynamic analysis is made on the nine single sway rod eccentrically braced steel frames which are based on Code for Seismic Design of Building（GB5001-2001）,and the seismic behaviour factor is thereafter investigated.The paper also studies the relation between the seismic behaviour factor and other factors such as the number of storey,span,span numbers and change of the fundamental period.Finally the paper presents the tentative R values of the seismic behaviour factor,which will provide some reference for the engineering design.
出处
《苏州科技学院学报（工程技术版）》
CAS
2010年第2期26-31,共6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
单斜杆偏心支撑钢框架
增量动力分析
结构影响系数
single sway rod eccentrically braced steel frame
the incremental dynamic analysis
seismic be-haviour factor
