Structural Engineering and Mechanics

  • 제74권3호
  • /
  • Pages.445-455
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  • 2020
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
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DOI QR Code

Investigation of shear lag effect on tension members fillet-welded connections consisting of single and double channel sections

  • Barkhori, Moien (Department of Civil Engineering, University of Jiroft) ;
  • Maleki, Shervin (Department of Civil Engineering, Sharif University of Technology) ;
  • Mirtaheri, Masoud (Department of Civil Engineering, K.N. Toosi University of Technology) ;
  • Nazeryan, Meissam (Department of Civil Engineering, Sharif University of Technology) ;
  • Kolbadi, S.Mahdi S. (Department of Civil Engineering, K.N. Toosi University of Technology)
  • 투고 : 2020.02.23
  • 심사 : 2020.03.27
  • 발행 : 2020.05.10
⟨ 이전 논문 다음 논문 ⟩

초록

Shear lag phenomenon has long been taken into consideration in various structural codes; however, the AISC provisions have not proposed any specific equation to calculate the shear lag ratio in some cases such as fillet-welded connections of front-to-front double channel sections. Moreover, those equations and formulas proposed by structural codes are based on the studies that were conducted on riveted and bolted connections, and can be applied to single channel sections whilst using them for fillet-welded double channels would be extremely conservative due to the symmetrical shape and the fact that bending moments will not develop in the gusset plate, resulting in less stress concentration. Numerical models are used in the present study to focus on parametric investigation of the shear lag effect on fillet-welded tension connection of double channel section to a gusset plate. The connection length, the eccentricity of axial load, the free length and the thickness of gusset plate are considered as the key factors in this study. The results are then compared to the estimates driven from the AISC-LRFD provisions and alternative equations are proposed.

키워드

과제정보

This researches received no external funding.

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