| 耗能支撑危险截面的有限元分析 |
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| 引用本文： | 王永贵.耗能支撑危险截面的有限元分析[J].钢结构,2010,25(4):37-41. |
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| 作者姓名： | 王永贵 |
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| 作者单位： | 河南理工大学土木工程学院,河南焦作,454000 |
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| 基金项目： | 2006年度国家自然科学基金资助项目(50678013) |
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| 摘 要： | 应用ANSYS分析软件对T型截面防屈曲支撑进行单调荷载作用下三维有限元模拟,在模型中钢芯和混凝土之间采用接触单元,混凝土与钢套筒之间完全粘结。通过有限元模拟分析可知:当T型截面防屈曲支撑一端施加的面荷载增加到一定值时,构件应力最大值位于防屈曲支撑钢芯反面截面削弱处,此处是该构件的薄弱位置;构件应力最小值位于防屈曲支撑钢芯连接段反面处,此处是构件最安全位置。模拟分析与试验结果表明:T型截面防屈曲支撑最危险截面出现在加载端过渡段与工作段的连接处,该处可作为设计防屈曲支撑的控制截面。
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| 关 键 词： | 防屈曲支撑 结构 模型 荷载 |
STUDY ON THE KEY SECTION OF BRB WITH ANSYS SOFTWARE |
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| Wang Yonggui.STUDY ON THE KEY SECTION OF BRB WITH ANSYS SOFTWARE[J].Steel Construction,2010,25(4):37-41. |
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| Authors: | Wang Yonggui |
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| Affiliation: | School of Civil Engineering;Henan Polytechnic University;Jiaozuo 454000;China |
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| Abstract: | The paper simulates the working process of T section buckling-restrained brace(BRB) under monotonic loading with finite element software ANSYS,A contact element is used between the core steel member and concrete in the model,and a full bond is formed between the concrete and the steel sleeve.On the basis of the analysis of ANSYS,it is known that the weakest section is on the reverse side of T section BRB steel core;the safe section is on the reverse side of the connection section of T section BRB steel core... |
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| Keywords: | buckling-restrained brace structure model load |
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