考虑截面圆角效应的T型方管相贯节点静力承载力研究

英文篇名：RESEARCH ON STATIC BEARING CAPACITY OF RHS-T CONNECTION WITH CORNER RADIUS OF CHORD TAKEN INTO ACCOUNT
中文刊名：钢结构
英文刊名：Steel Construction
作者：吴文奇 ; 吴耀华 ; 卢晋福
英文作者：Wu Wenqi Lu Jinfu (Beijing University of Science and Technology Beijing 100083) Wu Yaohua (Central Research Institute of Building and Construction ; MCC Group Beijing 100088)
中文关键词：相贯节点 ; 非线性有限元 ; 极限承载力
英文关键词：tubular joints non linear FE analysis ultimate bearing capacity
出版日期：2005-04-22
机构：北京科技大学,中冶集团建筑研究总院,北京科技大学北京100083 ,北京100088 ,北京100083
年：2005
期：02
出版单位：钢结构

摘要

CIDECT的T型方管相贯节点静力承载力公式忽略了弦杆截面圆角效应,有限元计算表明弦杆截面圆角效应对节点极限承载力有一定的影响,尤其对于较大β的节点和弦杆截面圆角外半径较大的冷弯薄壁管材节点的影响更明显。为此将考虑弦杆截面圆角效应,并提出关于T型方管节点静力承载力的修正公式。
For RHS T connection,the formula in CIDECT design guide to calculate the yield of strength neglects the corner radius of chord. Analysis of FE shows that the corner radius of chord had noticeable effect on a joint’s carrying capacity,especially for larger β or larger corner radius of cold formed RHS T connection. In this paper,the revisory formula of static carrying capacity of RHS T connection is suggested with the corner radius of chord taken into account.

引文

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