| 工形对称截面不锈钢梁变形性能的试验研究 |
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| 引用本文： | 王元清,常婷,石永久,高博.工形对称截面不锈钢梁变形性能的试验研究[J].工业建筑,2012,42(5):29-32. |
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| 作者姓名： | 王元清 常婷 石永久 高博 |
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| 作者单位： | 1. 土木工程安全与耐久教育部重点实验室,清华大学土木工程系,北京100084
2. 中国建筑西南设计研究院有限公司,成都,610081 |
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| 基金项目： | 北京市自然科学基金项目，国家自然科学基金项目 |
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| 摘 要： | 为研究国产不锈钢梁的非线性变形性能,对4根焊接不锈钢梁进行静力加载试验,并采用有限元软件ANSYS进行数值模拟。试验材料为国产奥氏体不锈钢316,加载类型包括单点加载和两点加载。试验结果表明:由于不锈钢材料非线性的影响,在荷载水平较大时,不锈钢梁的变形性能具有明显的非线性;当材料屈服时,塑性挠度占总挠度的50%左右;出现较大的平面外位移时,塑性挠度增加更加显著。该试验结果可为国产不锈钢梁的挠度计算提供依据。
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| 关 键 词： | 工形对称截面不锈钢梁 非线性 变形性能 试验研究 |
EXPERIMENTAL STUDY ON THE DEFORMATION BEHAVIOR OF SYMMETRIC STAINLESS STEEL I-BEAMS |
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| Wang Yuanqing,Chang Ting,Shi Yongjiu,Gao Bo.EXPERIMENTAL STUDY ON THE DEFORMATION BEHAVIOR OF SYMMETRIC STAINLESS STEEL I-BEAMS[J].Industrial Construction,2012,42(5):29-32. |
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| Authors: | Wang Yuanqing Chang Ting Shi Yongjiu Gao Bo |
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| Affiliation: | 1.Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry,Department of Civil Engineering,Tsinghua University,Beijing 100084,China; 2.China Southwest Architectural Design and Research Institute Co.Ltd,Chengdu 610081,China) |
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| Abstract: | In order to investigate the inelastic deformation behavior of stainless steel beams,4 stainless steel welded beams under pure bending and concentrated loading were performed.The tested material was austenitic stainless steel 316.The relationship between load and deflection was discussed and comparison between test results and results obtained by finite element method was made.The results showed that the deformation behavior of stainless steel performed non-linear load-deflection relationship because of the influence of nonlinear material properties;when yield load reached,the plastic deflection was about half of total one;plastic deflection increased remarkably when out-of-plane displacement took place.The test results can provide a basis for the deflection calculation of the domestic stainless steel I-beams. |
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| Keywords: | symmetric stainless steel I-beams non-linear deformation behavior test research |
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