|本期目录/Table of Contents|

[1]田炜烽,郝际平,王先铁.变轴力悬臂柱稳定性的简便计算方法[J].建筑科学与工程学报,2010,27(01):122-126.
　TIAN Wei-feng,HAO Ji-ping,WANG Xian-tie.Simple Calculation Method for Stability of Cantilever Column with Varying Axial Force[J].Journal of Architecture and Civil Engineering,2010,27(01):122-126.
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
27卷
期数:
2010年01期
页码:
122-126
栏目:
出版日期:
2010-03-20

文章信息/Info

Title:
Simple Calculation Method for Stability of Cantilever Column with Varying Axial Force
作者:
田炜烽,郝际平,王先铁
西安建筑科技大学 西建大-莱钢建筑钢结构研发中心,陕西 西安 710055
Author(s):
TIAN Wei-feng, HAO Ji-ping, WANG Xian-tie
Steel Structure R.D. Center, Xi'an University of Architecture and Technology, Xi'an 710055, Shaanxi, China
关键词:
等效负刚度;  变轴力;  悬臂柱;  稳定性
Keywords:
equivalent negative stiffness;  varying axial force;  cantilever column;  stability
分类号:
TU311.2
DOI:
-
文献标志码:
A
摘要:
基于等效负刚度相等的原则,建立了悬臂柱柱顶力与柱中力之间的等效关系; 通过该等效关系将柱中力折算成柱顶力来对变轴力悬臂柱进行稳定问题解答,给出了实用计算公式; 将该计算方法推广到多次变轴力问题,解决了多次变轴力悬臂柱的稳定问题,给出了简便的实用计算公式,并通过有限元软件进行了验证。研究结果表明:该公式具有一定的精度和准确性且偏于安全,可供工程设计及理论计算使用。
Abstract:
Based on the concept that the axial load could be equivalent to a negative stiffness, the stability problem of cantilever column was solved by converting the column middle load to a column top load and a practical formula was suggested. Generalizing the calculation formulas to the stability problem of cantilever column with multiple-varying axial force, a more universal practical formula was built and was validated by finite element software. The result shows that the formula is safer than the exact solution and is precise in a certain level, so it can be used for engineering design and theoretical calculations.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2009-07-14
作者简介:田炜烽(1985-),男,浙江杭州人,工学硕士研究生,E-mail:xiaotianhao@126.com。
更新日期/Last Update: 2010-03-20