Research on Lateral-torsional Buckling Resistance of Aluminum Beams in Fire

黄力才; 蒋首超

doi:10.13409/j.cnki.jdpme.2015.01.010

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Research on Lateral-torsional Buckling Resistance of Aluminum Beams in Fire

更新时间：2025-12-11

- Research on Lateral-torsional Buckling Resistance of Aluminum Beams in Fire
- Vol. 35, Issue 1, Pages: 57-62(2015)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：10.13409/j.cnki.jdpme.2015.01.010
  CLC： U395
- Published：2015
- 稿件说明：
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[1]黄力才,蒋首超.高温下铝合金受弯构件弯扭稳定承载力研究[J].防灾减灾工程学报,2015,35(01):57-62.

黄力才, 蒋首超. Research on Lateral-torsional Buckling Resistance of Aluminum Beams in Fire[J]. 2015, 35(1): 57-62.
[1]黄力才,蒋首超.高温下铝合金受弯构件弯扭稳定承载力研究[J].防灾减灾工程学报,2015,35(01):57-62. DOI： 10.13409/j.cnki.jdpme.2015.01.010.

黄力才, 蒋首超. Research on Lateral-torsional Buckling Resistance of Aluminum Beams in Fire[J]. 2015, 35(1): 57-62. DOI： 10.13409/j.cnki.jdpme.2015.01.010.

摘要

通过理论分析

得到高温下铝合金梁弯扭稳定承载力计算公式形式。采用有限元方法

分析了不同温度下国产6061-T6铝合金受弯构件的非线性稳定性能。对有限元方法计算得到的54条φb-λ曲线进行拟合

得到用于计算高温下国产铝合金梁整体弯扭失稳的φb-λ关系曲线

并将拟合曲线与试验数据、欧洲规范进行比较。结果表明

本文建议的相关公式可以用于计算高温下国产铝合金受弯构件的弯扭失稳。

Abstract

Through theoretical analysis

the formula of lateral-torsional buckling resistance of aluminum beams in fire is devised.Based on 54 integral stability coefficient versus equivalent slenderness ratio（φb-λ）curves for the beams of 6061-T6 aluminum alloy obtained from numerical simulation analysis at elevated temperatures

a fitting φb-λ curve was proposed to estimate the integral stability coefficient for the flexural-torsional buckling of beams at elevated temperatures.The proposed fitting curve was compared with Eurocode 9.The results show that the suggested method can accurately predict the lateral-torsional buckling resistances of domestic structural aluminum beams in fire.

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references

铝合金结构构件理论和试验研究 [D]. 郭小农. 同济大学 2006

GB 50429-2007. 铝合金结构设计规范 [S]. 2007

钢结构稳定理论与设计[M]. 科学出版社 , 陈骥编著, 2006

铝合金结构[M]. 冶金工业出版社 , (意)马佐拉尼（Mazzolani,FedericoM.）著, 1992

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