JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2011, Vol. 41 ›› Issue (1): 95-100.

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Influencing factors analysis of residual deformation of doubly symmetric stainless steel flexural members

WANG Yuan-qing1, GAO Bo2*, DAI Guo-xin2, SHI Yong-jiu1, YUAN Huan-xin1   

  1. 1. Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry, Department of
    Civil Engineering, Tsinghua University, Beijing 100084, China;
    2. Faculty of Civil Engineering, Chongqing University, Chongqing 400045, China
  • Received:2010-05-28 Online:2011-02-16 Published:2010-05-28

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Abstract:

In order to investigate residual deformation and  strength of doubly symmetric stainless steel flexural members,  influencing factors analysis was presented by adopting the residual displacement method suggested by Mazzolani. With  finiteelement analysis (FEA), 340 stainless steel I-beams were computed and the plastic adaption coefficient was suggested, which controlled the residual displacement less than 1／1000 of the beam span. The relationship between the plastic adaption coefficient and the geometry of members and material property was deduced. Design methods based on the FEA results were also proposed. The results indicated that the plastic adaption coefficient is the best way to control the residual deformation and ensure the requirements of the strength and deformation of stainless steel flexural members.

Key words:  stainless steel, flexural members, residual deformation, finite-element analysis, design method

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