树状柱框架中钢梁拼接的抗震设计有限元模拟对比  

Modeling Comparison of Steel Beam Splicing in Seismic Design of Column-tree Moment-resisting Frame

作　　者：李启才[1] 顾强[1] 

机构地区：[1]苏州科技学院土木工程系,江苏苏州215011

出　　处：《苏州科技学院学报（工程技术版）》2006年第2期1-5,共5页Journal of Suzhou University of Science and Technology （Engineering and Technology）

基　　金：国家自然科学基金资助项目(59978041)

摘　　要：为了比较树状柱钢框架中各种钢梁拼接设计的抗震性能,对几种常用的拼接设计进行了有限元滞回性能的模拟对比分析。分析采用三维三重非线性有限元,完全考虑了螺栓预拉力、螺栓头(帽)与板的相互作用、螺栓杆与孔壁的相互挤压作用、接触面的摩擦作用。结果表明,按照拼接区的实际受力进行设计,不仅拼接用料和施工用时较少,而且抗震性能有所提高。In order to compare the seismic characteristics of different steel beam splicing in column-tree moment-resisting frame, six commonly used splice joints are modeled and analyzed using finite element method （FEM）. The analysis adopts three-dimensional triple-nonlinear FEM, factors such as bolt pretension, interaction of bolt he＇,rd, nut with plates, compressing between bolt shanks and holes, fraction between faying surfaces and welding connections. Results show that splicing joints designed according to the actual force at splice joint center can not only save connection materials and construction time, hut also improve its seismic property.

关 键 词：树状柱框架 钢梁拼接 设计方法 高强螺栓 

分 类 号：TU392[建筑科学—结构工程]