建筑方钢管高强混凝土双枋—柱节点抗震性能分析  

Seismic Performance Analysis of High-strength Concrete-filled Square Steel Tube Double-span Column Joints

作　　者：王培先 Wang Peixian(The Open University of Huizhou,Huizhou Guangdong 516007,China)

机构地区：[1]惠州开放大学,广东惠州516007

出　　处：《科技通报》2022年第5期72-75,80,共5页Bulletin of Science and Technology

摘　　要：考虑到建筑方钢管高强混凝土双枋柱节点存在较大的地震能量,提出了建筑方钢管高强混凝土双枋—柱节点抗震性能分析,为了实现建筑方钢管高强混凝土双枋—柱节点构件的减震,以实现对其抗震性能的有效控制。在设计了2种新构件和1种对比试件的基础上,分别对2种构件进行循环荷载试验,分析了建筑方钢管高强混凝土双枋—柱节点试件的整体受力过程和破坏模式,实验结果表明,2种新材料的抗外荷载能力均明显高于对比试件,耗能能力也明显高于对比试件,滞回曲线显示出非常饱满的特征,骨架曲线的下降阶段处于平缓状态,说明新材料钢管高强混凝土双枋柱节点能有效提高建筑物的力学性能和抗震性能。Considering the large seismic energy of high-strength concrete-filled steel tubular double brace column joints in building, the seismic performance analysis of high-strength concrete-filled steel tubular double brace column joints in building is proposed, in order to realize the seismic reduction of high-strength concrete-filled steel tubular double brace column joints in building, and to realize the effective control of its seismic performance. Based on the design of two new members and one contrast specimen, the cyclic load tests of the two members are carried out respectively, and the overall stress process and failure mode of the specimens are analyzed. The experimental results show that the external load resistance of the two new materials are significantly higher than that of the contrast specimens, and the energy dissipation capacity is also significantly higher than that of the contrast specimens, The hysteretic curve shows a very full feature, and the skeleton curve is in a gentle state in the descending stage, which indicates that the new material high strength concrete filled steel tubular double brace column joint can effectively improve the mechanical properties and seismic performance of buildings.

关 键 词：建筑方钢管 高强混凝土 双枋—柱节点 抗震性能 

分 类 号：TU375[建筑科学—结构工程]