摘要
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的影响,对不同开孔尺寸节点的力学性能进行了分析比较,探讨了端板厚度、螺栓、开孔参数对端板上应力分布的影响.结果表明,梁柱端板连接腹板开孔型节点的细部构造对其受力影响较大,采用合理的细部构造形式有利于降低应力集中,改善节点的应力分布,使之受力均匀合理.
Beam-to-column end-plate standard connections and connections with web opening are analyzed by using nonlinear FEM. The influence of opening parameter on the stress distribution in connections, the variety of stress and strain in yield and ultimate elastic bearing capacity is also researched in this paper. The mechanical performance of different opening parameter connections is compared. Furthermore, the influence of the end-plate thickness, bolt, opening parameter on the stress distribution in end-plate is discussed. The results indicate the detail configuration of this joint influence the stress characteristics largely and the proper detail configuration may improve the stress distribution and lower the stress concentration.
出处
《北京交通大学学报》
CAS
CSCD
北大核心
2009年第4期78-82,共5页
JOURNAL OF BEIJING JIAOTONG UNIVERSITY
基金
国家自然科学基金杰出青年基金项目(50725826)
关键词
钢结构
梁柱端板连接
腹板开孔
有限元
应力分布
steel structure
beam-to-coluinn end-plate connections
web opening
finite element
stress distribution
