建筑结构学报2012，Vol.33Issue(8)：41-50,10.
矩形钢管混凝土异形柱-钢梁框架节点抗震性能试验研究
Experimental study on seismic performance of joints between concrete-filled square steel tubular special-shaped columns and steel beams
摘要
Abstract
In order to investigate the failure modes and seismic behavior of the joints between concrete-filled square steel tubular special-shaped columns and steel beams,9 specimens were tested under reversed cyclic loading.The failure process and patterns were obtained.The failure characteristics,mechanical behavior such as the load-displacement hysteretic loops,load carrying capacity,degradation of strength and rigidity,inter-story drift,ductility and energy dissipation of the joints were analyzed.It is shown that the main failure patterns are shear failure of web in joint zone,vertical weld fracture between the web of the joint and the flange of the column.The hysteretic loops of the joints are in plump-shape.The story displacement ductility factors are between 1.44 and 2.74.The ultimate elasto-plastic inter-story drift is about 1/43 to 1/21.The equivalent viscous damping coefficient is about 0.227 to 0.316,indicating that the joint has good energy dissipation capacity.When the ratio of height to thickness of column section is 3 and 4,the shear deformation of joint core is about 0.01 to 0.03 at joint failure.When the ratio of height to thickness of column section is 2,the shear deformation of joint core is about 0.08 to 0.10 at joint failure.关键词
矩形钢管混凝土/异形柱/框架节点/拟静力试验/抗震性能Key words
concrete-filled square steel tubular/special-shaped column/frame joint/quasi-static test/seismic behavior分类
建筑与水利引用本文复制引用
周鹏,薛建阳,陈茜,葛广全,葛鸿鹏,侯文龙..矩形钢管混凝土异形柱-钢梁框架节点抗震性能试验研究[J].建筑结构学报,2012,33(8):41-50,10.基金项目
国家自然科学基金项目 （）
教育部高等学校博士学科点专项科研基金项目 （）
陕西省留学人员科技活动择优资助项目 （）
长江学者和创新团队发展计划资助项目 （）
中建股份有限公司科技研发课题资助项目 （）
