节点初始转动刚度对门式刚架平面内屈曲荷载影响研究  

RESEARCH ON INFLUENCE OF INITIAL ROTATIONAL STIFFNESS OF NODE ON BUCKLING LOAD ON GABLED FRAME

作　　者：张文耀[1] 林宏伟[1] 黄祖华[1] 赖苍林[1] 宋振森[2] 

机构地区：[1]福建省建筑科学研究院,福州350025 [2]上海交通大学船舶海洋与建筑工程学院,上海200240

出　　处：《建筑技术》2012年第8期726-727,共2页Architecture Technology

基　　金：福建省科技计划重点项目(2008Y0013)

摘　　要：门式刚架一般均采用端板式连接,属半刚性连接,通过分析柱脚铰接与柱脚刚接两种情况的刚架稳定承载力随节点相对转动刚度以及梁柱线刚度比变化的关系曲线,得出在梁柱线刚度比相同情况下,刚架稳定承载力随转动刚度增大而增大,最后给出了刚架柱的计算长度系数表格以便工程应用。Gabled frame usually adopts end-plate of relation curve for stable bearing capacity of hinge after relative rotational stiffness of node and stiffness connection, which is semi-rigid connection. After analysis connection and rigid connection of column feet changing ratio of beam column, it is obtained that stable bearing capacity of rigid frame is in direct proportion to rotational stiffness. Finally, a table of coefficients for length calculation of rigid frame column is given for engineering application.

关 键 词：门式刚架 半刚性 屈曲荷载 计算长度系数 端板式连接 

分 类 号：TU328[建筑科学—结构工程]