薄壁异形截面铝合金轴心受压柱屈曲模态耦合及承载力计算

薄壁异形截面铝合金构件广泛应用于建筑结构中,但其截面的复杂性导致该类构件的破坏模态更加复杂。有限元模型采用有限元软件ABAQUS建立并经过试验结果验证。通过有限元方法,分析了薄壁异形截面铝合金柱的塑性屈服、局部屈曲与塑性屈服耦合、局部屈曲与整体屈曲耦合、以及整体屈曲等4种破坏模式的构件变形和截面应力发展。将有限元方法计算的薄壁异形截面铝合金轴压柱极限承载力,与国内外铝合金结构设计规范的计算结果进行了对比。结果表明,现行规范的设计方法在计算薄壁异形截面铝合金轴压柱的承载力时都较为保守。...

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Published inJianzhu Gangjiegou Jinzhan pp. 24 - 34
Main Authors 刘梅, 常熤存, 刘昌斌, 郭康瑞
Format Journal Article
LanguageChinese
Published Editorial Department of Progress in Steel Building Structures, Tongji University 01.01.2016
Subjects
屈曲模态耦合
异形截面
承载力
铝合金柱
Online AccessGet full text
ISSN1671-9379
DOI10.13969/j.cnki.cn31-1893.2016.03.004

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Abstract 薄壁异形截面铝合金构件广泛应用于建筑结构中,但其截面的复杂性导致该类构件的破坏模态更加复杂。有限元模型采用有限元软件ABAQUS建立并经过试验结果验证。通过有限元方法,分析了薄壁异形截面铝合金柱的塑性屈服、局部屈曲与塑性屈服耦合、局部屈曲与整体屈曲耦合、以及整体屈曲等4种破坏模式的构件变形和截面应力发展。将有限元方法计算的薄壁异形截面铝合金轴压柱极限承载力,与国内外铝合金结构设计规范的计算结果进行了对比。结果表明,现行规范的设计方法在计算薄壁异形截面铝合金轴压柱的承载力时都较为保守。
AbstractList 薄壁异形截面铝合金构件广泛应用于建筑结构中,但其截面的复杂性导致该类构件的破坏模态更加复杂。有限元模型采用有限元软件ABAQUS建立并经过试验结果验证。通过有限元方法,分析了薄壁异形截面铝合金柱的塑性屈服、局部屈曲与塑性屈服耦合、局部屈曲与整体屈曲耦合、以及整体屈曲等4种破坏模式的构件变形和截面应力发展。将有限元方法计算的薄壁异形截面铝合金轴压柱极限承载力,与国内外铝合金结构设计规范的计算结果进行了对比。结果表明,现行规范的设计方法在计算薄壁异形截面铝合金轴压柱的承载力时都较为保守。
Author 刘昌斌
常熤存
刘梅
郭康瑞
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SubjectTerms 屈曲模态耦合
异形截面
承载力
铝合金柱
Title 薄壁异形截面铝合金轴心受压柱屈曲模态耦合及承载力计算
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