L形钢管混凝土轴压短柱力学性能研究

本文进行了四根有加劲和二根无加劲的L形钢管混凝土短柱轴压试验。对试件破坏过程及结果进行了较为详细的描述,在此基础上,考察了不同宽厚比和内部有无加劲肋对试件承载力和延性的影响。结果表明:L形钢管混凝土柱延续了钢管混凝土的特性,有良好的受力性能;当钢管宽厚比不大于60（即短肢柱）时,加劲肋虽然对L形钢管混凝土的承载力没有明显的贡献,但是可以有效地提高其延性;而当钢管宽厚比大于60（即长肢柱）时,加劲肋对L形钢管混凝土柱的承载力及延性均无明显影响。最后,在选择合理的钢材和核心混凝土本构关系基础上,采用大型通用有限元分析程序ABAQUS建立了轴压荷载下L钢管混凝土柱的三维非线性有限元分析模型,分析了构...

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Published inJianzhu Gangjiegou Jinzhan Vol. 11; pp. 14 - 19
Main Authors 林震宇, 沈祖炎, 罗金辉, 张继承
Format Journal Article
LanguageChinese
Published Editorial Department of Progress in Steel Building Structures, Tongji University 01.01.2009
Subjects
L形钢管混凝土柱
加劲肋
宽厚比
延性
承载力
Online AccessGet full text
ISSN1671-9379

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Abstract 本文进行了四根有加劲和二根无加劲的L形钢管混凝土短柱轴压试验。对试件破坏过程及结果进行了较为详细的描述,在此基础上,考察了不同宽厚比和内部有无加劲肋对试件承载力和延性的影响。结果表明:L形钢管混凝土柱延续了钢管混凝土的特性,有良好的受力性能;当钢管宽厚比不大于60（即短肢柱）时,加劲肋虽然对L形钢管混凝土的承载力没有明显的贡献,但是可以有效地提高其延性;而当钢管宽厚比大于60（即长肢柱）时,加劲肋对L形钢管混凝土柱的承载力及延性均无明显影响。最后,在选择合理的钢材和核心混凝土本构关系基础上,采用大型通用有限元分析程序ABAQUS建立了轴压荷载下L钢管混凝土柱的三维非线性有限元分析模型,分析了构件的荷载-变形关系,计算表明,计算曲线与试验曲线吻合良好。
AbstractList 本文进行了四根有加劲和二根无加劲的L形钢管混凝土短柱轴压试验。对试件破坏过程及结果进行了较为详细的描述,在此基础上,考察了不同宽厚比和内部有无加劲肋对试件承载力和延性的影响。结果表明:L形钢管混凝土柱延续了钢管混凝土的特性,有良好的受力性能;当钢管宽厚比不大于60（即短肢柱）时,加劲肋虽然对L形钢管混凝土的承载力没有明显的贡献,但是可以有效地提高其延性;而当钢管宽厚比大于60（即长肢柱）时,加劲肋对L形钢管混凝土柱的承载力及延性均无明显影响。最后,在选择合理的钢材和核心混凝土本构关系基础上,采用大型通用有限元分析程序ABAQUS建立了轴压荷载下L钢管混凝土柱的三维非线性有限元分析模型,分析了构件的荷载-变形关系,计算表明,计算曲线与试验曲线吻合良好。
Author 林震宇
张继承
沈祖炎
罗金辉
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Snippet 本文进行了四根有加劲和二根无加劲的L形钢管混凝土短柱轴压试验。对试件破坏过程及结果进行了较为详细的描述,在此基础上,考察了不同宽厚比和内部有无加劲肋对试件承载力和...
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SubjectTerms L形钢管混凝土柱
加劲肋
宽厚比
延性
承载力
Title L形钢管混凝土轴压短柱力学性能研究
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