Mechanics in Engineering ›› 2018, Vol. 40 ›› Issue (3): 294-299.DOI: 10.6052/1000-0879-17-258

• Applied Research • Previous Articles     Next Articles

BAR SIMULATION METHOD FOR BENDING NORMAL STRESS OF I-BEAM IN CONSIDERATION OF SHEAR EFFECT 1)

WU Siyuan2,†,*, WANG Zhengzhong3,†,*, PENG Wenzhe*, LIU Shaojun*,†, LI Si*,**   

  1. * College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling 712100, Shanxi, China;
    Cold and Arid Regions Water Engineering Safety Research Center, Northwest A&F University, Yangling 712100, Shanxi, China);
    ** Shanghai Thousand Year Design, Shanghai 200000, China
  • Received:2017-07-19 Revised:2017-11-17 Online:2018-06-15 Published:2018-07-17

Abstract:

With the wide use of I-section short, deep beams and wide flange beams, the section nonlinear effect of shear deformation on the bending normal stress becomes an important issue, because enormous calculation errors will occur by using the traditional beam theory in the design. With the bar simulation method, formulas are derived in this paper for the calculation of the bending normal stress with consideration of the shear effect and results are compared with those obtained by various analytical methods and the finite element numerical simulation results. The results indicate that when § is small or ø is large, the bending deflection is affected greatly by the transverse shear. Besides, compared with the existing analytical methods, the proposed method offers more accurate results with an extended scope of application, which can be used for the structural design.

Key words:

I-section|shear effect|bending normal stress|bar simulation method

CLC Number: