半刚性柱脚连接门式钢架的几何非线性分析  

Advanced Analysis of Portal Frames with Semirigid Base Connections

作　　者：宗丽杰[1] 赵滇生[1] 

机构地区：[1]浙江工业大学建筑工程学院,浙江杭州310032

出　　处：《应用能源技术》2007年第2期1-4,共4页Applied Energy Technology

摘　　要：对带缺陷半刚性连接门式钢架进行了弹塑性大变形有限元分析。分析考虑了半刚性柱脚连接、几何缺陷等的影响,采用精炼塑性铰法分析截面塑性,通过特征屈曲分析考虑轴力和初始几何缺陷对门式钢架受力性能的影响。A robust finite element procedure for large deflection and inelastic analysis of imperfect steel frames with semirigid base is proposed and the nonlinear behavior of sem - ifigid frames with various initial imperfections axe studied. The refined plastic hinge method is used for modeling of the section plastification and both the notional force and the initially imperfect geometry of the frames obtained by an eigenvalue buckling analysis axe used for modeling the geometrical imperfections.

关 键 词：半刚性 几何缺陷 门式钢架 精炼塑性铰法 

分 类 号：TP39[自动化与计算机技术—计算机应用技术]