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    郭  兵  柳  鋒
    （山東建筑工程學(xué)院土木工程系  濟(jì)南 250014）

[提要]  針對(duì)門式剛架外伸式無肋端板連接中端板普遍存在初始變形的問題，采用有限元法對(duì)有初始變形的典型端板連接做了模擬分析，重點(diǎn)研究了端板初始變形對(duì)連接的內(nèi)力、變形等性能的影響，并結(jié)合工程實(shí)際提出了設(shè)計(jì)建議。
[關(guān)鍵詞]  門式剛架  初始變形  外伸式端板連接性能

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