梁柱外伸端板连接节点的计算模型  

Calculation model of beam-to-column extended end plate connections

作　　者：陆铁坚[1] 张建军[1] 余志武[1] 蔡勇[1] 

机构地区：[1]中南大学土木建筑学院,湖南长沙410075

出　　处：《铁道科学与工程学报》2010年第5期6-11,共6页Journal of Railway Science and Engineering

基　　金：国家自然科学基金资助项目(51078354);湖南省重点基金项目(10JJ2034)

摘　　要：钢框架中普遍采用的外伸端板连接是典型的半刚性节点连接,其极限承载力和初始刚度受到多种因素的影响。根据节点的传力特点,分别计算各组件的极限承载力和初始刚度,提出了外伸端板连接节点极限承载力和初始刚度的理论计算方法;通过与试验和有限元结果对比表明该计算方法具有足够的精确性。采用已有的三参数模型,对节点的弯矩-转角关系进行模拟。并对影响外伸端板连接性能的各因素进行了深入的探讨,为工程设计提供参考。The Extended end plate connection in steel frame is a typical semi-rigid nodes connection,whose ultimate load-bearing capacity and initial stiffness are influenced by several factors.Based on its characteristic of transmitting fore,the ultimate load-bearing capacity and initial stiffness of each component were calculated and the calculation method of the ultimate load-bearing capacity and initial stiffness of the joint were generated.By comparing with the finite element results and experiment results,it is verified that the method is accurate.Its momemt-rotation relation relation is simulated by three-parameter power model.Finally,the main influencing factors for the extended end plate connection using proposed method are discussed accordingly,which can provide reference for the engineering design.

关 键 词：外伸端板连接 极限弯矩 初始刚度 弯矩-转角曲线 

分 类 号：TU375.4[建筑科学—结构工程]