郭  兵  柳  锋
    （山东建筑工程学院土木工程系  济南 250014）

[提要]  针对门式刚架外伸式无肋端板连接中端板普遍存在初始变形的问题，采用有限元法对有初始变形的典型端板连接做了模拟分析，重点研究了端板初始变形对连接的内力、变形等性能的影响，并结合工程实际提出了设计建议。
[关键词]  门式刚架  初始变形  外伸式端板连接性能

In order to analyze the influence of extended end-plate initial deflection on connection behavior, which commonly exist in portal frame connections, typical specimens of unstiffened end-plate connections are studied through finite element method. Emphases are internal forces and deformation of connections under the influence of initial deflection. Connection behavior and design method are discussed and proposed in design practice.
Keywords: portal frame; initial deformation; extended  end-plate connection; performance