山东建筑大学学报2011，Vol.26Issue(4)：317-321,326,6.
偏心支撑半刚性连接钢框架的动力特性研究
Study on dynamic characteristics of eccentrically braced semi-rigid steel frames
摘要
Abstract
Semi-rigid steel frame combined with eccentric braces is a new type of seismic structural system. In order to investigate its dynamic characteristics and influence factors,large scale tests and finite element modal analysis are conducted. The results show that, dynamic characteristics of eccentrically braced semi-rigid steel frames are different from traditional frames. With the decrease of rotation stiffness of beam-column connections, structural natural vibration period gradually extends, and the damping ratio increases. The relevant provisions of the existing codes do not apply to such structural system. The simplified calculation method of natural period and the reference value of damping ratio for eccentrically braced semi-rigid steel frames are provided according to the research results.关键词
动力特性/自振周期/阻尼比/偏心支撑半刚性连接钢框架Key words
dynamic characteristics/natural vibration period/damping ratio/eccentrically braced semirigid steel frames分类
建筑与水利引用本文复制引用
郭兵,吴永清..偏心支撑半刚性连接钢框架的动力特性研究[J].山东建筑大学学报,2011,26(4):317-321,326,6.基金项目
国家自然科学基金项目(50778106) （50778106）
教育部新世纪优秀人才支持计划(NCET-08-0880) （NCET-08-0880）
