单调荷载下钢异形柱(T形)框架节点的力学性能研究  

RESEARCH ON MECHANICAL PROPERTY OF FRAME JOINT WITH T SPECIAL SHAPED SECTION COLUMN

作　　者：张爱林[1] 刘显旺[1] 于劲[1,2] 徐敏[1] 

机构地区：[1]北京工业大学建筑工程学院,北京100124 [2]北京市住宅建筑设计研究院有限公司,北京100005

出　　处：《钢结构》2009年第2期15-19,共5页Steel Construction

基　　金：国家自然科学基金资助项目(50878008);北京市拔尖创新人才资助项目(05004311200601)

摘　　要：利用ANSYS有限元软件分析T形钢异形柱框架节点的基本力学性能,对软件分析得出的节点应力分布规律进行初步分析。结果表明,异形柱节点的柱侧翼缘受力复杂,应力呈反对称分布,可承担相当一部分弯矩作用。对翼缘和腹板宽厚比对节点承载能力和转动能力的影响进行研究,通过对比异形柱框架节点和传统的箱形柱节点在单调荷载作用下的承载能力和变形能力,得出异形柱节点的优越性,即承载能力强,节点转动能力大。Basic mechanical property of frame joint with T special shaped column was analysed with the ANSYS computer finite program, including the distribution of stress when the joint is going to fail, the influence of width- thickness ratios of flange and web on the bearing capacity and rotation of the joint. The results show that the stress of lateral flange is complex and with an antisymmetric distribution, the lateral flange supports much of the bending moment. Furthermore the bearing and rotating capacities of the frame joint with T special shaped column were compared to the traditional joint with box column, it shows that the former is much better in both bearing and rotating capacity.

关 键 词：T形 钢异形柱 框架节点 力学性能 

分 类 号：TU391[建筑科学—结构工程]