地震工程学报2016，Vol.38Issue(5)：678-684,7.DOI:10.3969/j.issn.1000-0844.2016.05.0678
直接基于位移设计的高强钢组合K形偏心支撑钢框架的抗震性能研究
Seismic Behavior of High Strength Steel Composite K-type Eccentrically Braced Frames with Direct Displacement-based Design Method
摘要
Abstract
Links and braces use Q345 steel,while other structural members use high strength steel (e.g.Q460 steel).In particular,this is used in high strength steel combination eccentrically braced frames (HSS-EBFs ),as it improves economic efficiency due to its weight and high strength.In this paper,in order to study their seismic performance,four groups of HSS-EBFs were designed using the direct displacement-based design (DDBD)method and included 5-,8-, and 12-story structures.Nonlinear pushover analysis and dynamic elastoplastic analysis were per-formed on all designs,and inter-story drift and failure modes under rare earthquake events stud-ied.The results show that the inter-story drifts satisfy the deformation requirement of the seismic code under rare earthquakes and the K-HSS-EBF structure presents an ideal progressively plastic mechanism,proving that this new design method is reasonable and reliable.关键词
偏心支撑钢框架/高强钢/直接基于位移的抗震设计/层间位移/破坏模式Key words
eccentrically braced frames/high strength steel/direct displacement-based seismic design/inter-story displacement/damage mode分类
建筑与水利引用本文复制引用
郑晓伟,苏明周,石鲁,秦瑞,王迪涛,王喆..直接基于位移设计的高强钢组合K形偏心支撑钢框架的抗震性能研究[J].地震工程学报,2016,38(5):678-684,7.基金项目
"十二五"科技支撑计划课题(2013BAJ10B03-0) （2013BAJ10B03-0）
