| 考虑截面圆角效应的T型方管相贯节点静力承载力研究 |
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| 引用本文： | 吴文奇,卢晋福,吴耀华.考虑截面圆角效应的T型方管相贯节点静力承载力研究[J].钢结构,2005,20(2):21-25. |
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| 作者姓名： | 吴文奇 卢晋福 吴耀华 |
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| 作者单位： | 北京科技大学,北京,100083;中冶集团建筑研究总院,北京,100088 |
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| 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。
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| 关 键 词： | 相贯节点 非线性有限元 极限承载力 |
| 修稿时间： | 2004年10月20 |
RESEARCH ON STATIC BEARING CAPACITY OF RHS-T CONNECTION WITH CORNER RADIUS OF CHORD TAKEN INTO ACCOUNT |
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| Wu Wenqi,Lu Jinfu,Wu Yaohua.RESEARCH ON STATIC BEARING CAPACITY OF RHS-T CONNECTION WITH CORNER RADIUS OF CHORD TAKEN INTO ACCOUNT[J].Steel Construction,2005,20(2):21-25. |
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| Authors: | Wu Wenqi Lu Jinfu Wu Yaohua |
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| Abstract: | 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. |
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| Keywords: | tubular joints non linear FE analysis ultimate bearing capacity |
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