钢结构梁柱端板连接腹板开孔型节点的延性分析  

DUCTILITY ANALYSIS OF BEAM-TO-COLUMN END-PLATE CONNECTIONS WITH WEB OPENING IN STEEL STRUCTURES

作　　者：樊宝锋[1] 章梓茂[1] 杨庆山[1] 杨娜[1] 

机构地区：[1]北京交通大学土木建筑工程学院,北京100044

出　　处：《工程力学》2009年第3期140-147,共8页Engineering Mechanics

基　　金：国家自然科学基金杰出青年基金项目(50725826)

摘　　要：利用有限元分析软件ANSYS对梁柱端板连接标准型和腹板开孔型节点进行了非线性有限元分析,研究了腹板开孔参数对节点区应力分布、屈服时应力-应变发展变化及节点的弹性极限承载力和刚度的影响,揭示了节点根部塑性铰外移的根本原因,对不同开孔尺寸节点的力学性能进行了分析比较,着重探讨了端板厚度、螺栓、开孔参数对节点延性性能的影响。结果表明:梁柱端板连接腹板开孔型节点是一种值得推广的新型抗震节点。The Beam-to-column end-plate standard connections with web opening are analyzed by Finite Element Program （FE-program） ANSYS. The influence of the opening parameter on the stress distribution in connections, the variety of stress and strain in yield and ultimate elastic bearing capacity are also investigated, and the basic reason for the movement of plastic hinge is revealed. The mechanical performance of different opening parameter connections are compared, in addition, the influence of the end-plate thickness, bolt and opening parameter on the ductility performance of connections are also discussed. The results indicate that the beam-to-column end-plate connection with web opening is a new type aseismic connection, which can be generalized widely.

关 键 词：钢结构:梁柱端板连接 腹板开孔 有限元 延性分析 

分 类 号：TU392.1[建筑科学—结构工程]