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.
出处
《铁道科学与工程学报》
CAS
CSCD
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)
关键词
外伸端板连接
极限弯矩
初始刚度
弯矩-转角曲线
extended end plate connections
ultimate moment
initial stiffness
moment-rotation curve
