陈晓旭1，何华拓2，陈兆荣3

（1 广东白云学院， 广州 510000； 2 苏交科集团股份有限公司， 南京 210000；3 深圳市力鹏工程结构技术有限公司， 深圳 518034）

［摘要］针对传统钢结构梁柱钢节点截面突变处较易出现应力集中现象展开，选取2个扩翼型节点和1个传统节点，通过ABAQUS有限元软件，采用低周循环位移荷载模拟地震作用，分析了普通节点和扩翼型节点的抗震性能。分析结果表明：扩翼型节点的抗震性能比传统节点较为优越，随着扩翼尺寸的增大其抗震性能呈更好的趋势；建议在强震地区的钢框架结构中优先选用扩翼型节点。

［关键词］扩翼型； 抗震性能； 刚性连接； 低周循环位移荷载

中图分类号： TU352，TU391    文献标识码： A    文章编号： 1002-848X(2015)S2-0441-05

Analysis of the seismic performance on widened beam-column connection in the steel frame

Chen Xiaoxu1， He Huatuo2, Chen Zhaorong3

（1 Guangdong Baiyun University, Guangzhou 510000, China; 2 JSTI, Nanjing 210000, China；

3 Shenzhen Lipeng Structural Engineering Technology Co., Ltd., Shenzhen 518034, China）

Abstract: The severe stress concentrating is obvious in sharp section change of traditional steel frame beam column connections. Two widened beam flange connections and one traditional connections were selected. Anti-seismic property of widened beam flange connections and traditional joints was analyzed by finite element software ABAQUS, at the same time, seismic excitation can be modeled by low cycle displacement loading. The analytical results show that the anti-seismic properties of widened beam flange connections are superior to traditional joints. Meanwhile, anti-seismic properties improve as its size grows. As a result, it is suggested that widened beam flange connections should be adopted preferentially in the region of strong earthquakes.

Keywords: widened beam flange connection; anti-seismic property; rigid coupling; low cycle displacement loading

作者简介：陈晓旭，硕士研究生，Email：719879187@qq.com。