角钢厚度对半刚性梁柱连接性能影响研究  

Influence of angle′s thickness on behavior of semi-rigid beam-column connections

作　　者：李凤霞[1] 

机构地区：[1]洛阳理工学院土木工程系,河南洛阳471023

出　　处：《世界地震工程》2012年第4期63-68,共6页World Earthquake Engineering

基　　金：国家自然科学基金(51278238);河南省高校科技创新人才支持计划项目(2010HASTIT012)

摘　　要：运用有限元ANSYS软件和欧洲规范EUROCODE3给出的钢材在高温环境下的热物理及力学特性参数,建立了3个不同顶底角钢厚度的带双腹板顶底角钢梁柱连接的有限元分析模型。运用热-力耦合分析方法,对双腹板顶底角钢梁柱连接在高温下的抗火性能进行了深入研究,探讨了顶底角钢厚度变化对连接在高温环境下受力机理以及螺栓预紧力受温度影响的规律,所得结果对该类节点的抗火设计具有一定的参考价值。In use of finite element software ANSYS and the thermal physical and mechanical parameters of steels un der high temperature given in Eurocode 3, three finite element models of double web topseat angle beamcolumn connections with different angle＇s thicknesses were established. Based on thermalmechanical analysis method, the fireresistance behavior of the topseatangle with double webangle connections under high temperature was re searched thoroughly. The mechanical characteristic change of this connections and the rule of prestress loss for bolts under high temperature with thickness of angles was obtained. The results can give a reference to fire resistance de sign of this kind of the connections.

关 键 词：热-力耦合 双腹板顶底角钢连接 抗火 

分 类 号：TU375[建筑科学—结构工程] P315.8[天文地球—地震学]