有摇摆柱时框架柱的稳定系数

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Strength Reduction Factor of Framed Columns Supporting Leaning Columns

Institute of High Performance Structures, Zhejiang University, Hangzhou 310058, China

摘要: 介绍了对摇摆柱提供支持的框架柱的稳定性设计。存在摇摆柱的情况下,框架柱的稳定系数,除了采用放大了的长细比确定外,还要降低柱子曲线。在摇摆柱的轴力和框架柱的轴力相等的情况下,从b曲线下降到欧洲钢结构规范的c曲线。最后采用Jezek模型对上述结论进行了验证。
- 柱子 /
- 摇摆柱 /
- 屈曲 /
- 框架
Abstract: This paper investigated the stability coefficient of columns which provide lateral support to leaning columns. The present paper revealed that, the stability coefficient of framed columns should not only be determined by an amplified effective length, but also the column curve used should be lower, in the case of the leaning column carrying the same axial load as the framed column, the column curve should be changed from the curve b to the curve c in Eurocode 3. Using the well-known Jezek model, the above conclusions were verified.
- column /
- leaning column /
- buckling /
- frame

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[2]	童根树.钢结构的平面内稳定[M].北京:中国建筑工业出版社,2005.
[3]	European Committee for Standardization (CEN). Eurocode 3:design of steel structures-part 1-1:general rules and rules for buildings:EN 1993-1-1[S]. Brussels:CEN,2022.
[4]	Jezek K. Die festigkeit von druckstaeben aus stahl[M]. Vienna:Verlag von Julius Springer, 1937.