Experimental study of lateral-torsional buckling behavior of stainless steel welded I-section beams |
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| Authors: | Yuanqing Wang Lu Yang Bo Gao Yongjiu Shi Huanxin Yuan |
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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. The College of Architecture and Civil Engineering, Beijing University of Technology, Beijing, 100124, China
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| Abstract: | Investigations on lateral-torsional buckling behavior of stainless steel welded I-section beams were carried out through fourpoint bending tests. The Chinese austenitic stainless steel adopted in this study contains approximately 17% of Cr, which could be graded as EN 1.4401. The non-linear stress-strain relationship of the material, the residual stress distribution of the section and the ultimate moment capacity of the welded I-section beams were obtained from the experiments, and they were compared with those results predicted by analytical models recommended by several researchers. Besides, a new model is proposed to predict the residual stress distribution of the stainless steel welded I-section beams. |
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