Experimental study of lateral-torsional buckling behavior of stainless steel welded I-section beams

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• 作者：Yuanqing Wang (1)
  Lu Yang (2)
  Bo Gao (1)
  Yongjiu Shi (1)
  Huanxin Yuan (1)
  
• 关键词：lateral ; torsional buckling ; stainless steel ; welded I ; section beam ; residual stress ; four ; point bending test
• 刊名：International Journal of Steel Structures
• 出版年：2014
• 出版时间：June 2014
• 年：2014
• 卷：14
• 期：2
• 页码：411-420
• 全文大小：547 KB
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• 作者单位：Yuanqing Wang (1)
  Lu Yang (2)
  Bo Gao (1)
  Yongjiu Shi (1)
  Huanxin Yuan (1)
  
  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
  
• ISSN：2093-6311

文摘

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.