带有偏移角的型钢混凝土梁-柱节点抗震性能研究  

Seismic Performance Study of Steel-Concrete Beam-Column Nodes with Offset Angles

作　　者：段加超 侯天赐 李亚苹 李大华 DUAN Jiachao;HOU Tianci;LI Yaping;LI Dahua(Ma’anshan Shoujian Engineering Quality Inspection Consulting Co.,Ltd.,Ma’anshan Anhui 243000,China;School of Civil Engineering,Anhui Jianzhu University,Hefei 230601,China)

机构地区：[1]马鞍山首建工程质量检测咨询有限公司,安徽马鞍山243000 [2]安徽建筑大学土木工程学院,安徽合肥230601

出　　处：《兰州工业学院学报》2024年第4期7-12,共6页Journal of Lanzhou Institute of Technology

基　　金：马鞍山首建工程咨询有限公司与安徽建筑大学合作基金资助项目(HYB20220091)。

摘　　要：为了研究带有偏移角型钢混凝土梁-柱节点的抗震性能,采用数值模拟方法,以6°为步长,建立了从0°到30°的6个边节点模型,进行了低周往复荷载下的拟静力试验,对各边节点的破坏形态、承载能力、滞回性能等进行了分析。结果表明:在往复荷载作用下,各边节点的梁端都形成了塑性铰并发生了破坏,但等效塑性应变区域向偏移侧转移;边节点偏移角的增加对滞回曲线的形状没有明显影响,但会提高节点的承载能力和耗能能力,导致骨架曲线外扩。In order to study the seismic performance of steel-concrete beam-column nodes with offset angels,utilizing numerical simulation methods with a 6-degree increment,boundary node models are systematically established ranging from 0°to 30°.Subsequent quasi-static tests are conducted under low-cycle reversed loading,allowing for a comprehensive analysis of various parameters pertaining to the boundary nodes,including failure modes,load-bearing capacity,and hysteresis properties.The results indicate that,under the action of cyclic loading,plastic hinges formed at the beam ends of each boundary node,leading to structural damage.However,the equivalent plastic strain zone shifted towards the offset side.In terms of hysteresis performance analysis,an increase in the offset angle did not significantly affect the shape of the hysteresis curve,but it enhanced the nodes’load-bearing capacity and energy dissipation,resulting in the outward expansion of the skeleton curve.

关 键 词：型钢混凝土 梁-柱节点 有限元分析 抗震性能 

分 类 号：TU398[建筑科学—结构工程]