Steel and Composite Structures

  • 제22권1호
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  • Pages.183-201
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  • 2016
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
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Effect of stiffeners on failure analyses of optimally designed perforated steel beams

  • Erdal, Ferhat (Department of Civil Engineering, Akdeniz University)
  • 투고 : 2016.04.15
  • 심사 : 2016.09.26
  • 발행 : 2016.09.20
⟨ 이전 논문 다음 논문 ⟩

초록

Perforated steel beams can be optimised by increased beam depth and the moment of inertia combined with a reduced web thickness, favouring the use of original I-section beams. The designers are often confronted with situations where optimisation cannot be carried out effectively, taking account of the buckling risk at web posts, moment-shear transfers and local plastic deformations on the transverse holes of the openings. The purpose of this study is to suggest solutions for reducing these failure risks of tested optimal designed beams under applying loads in a self-reacting frame. The design method for the beams is the hunting search optimisation technique, and the design constraints are implemented from BS 5950 provisions. Therefore, I have aimed to explore the strengthening effects of reinforced openings with ring stiffeners, welded vertical simple plates on the web posts and horizontal plates around the openings on the ultimate load carrying capacities of optimally designed perforated steel beams. Test results have shown that compared to lateral stiffeners, ring and vertical stiffeners significantly increase the loadcarrying capacity of perforated steel beams.

키워드

과제정보

연구 과제 주관 기관 : Akdeniz University

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피인용 문헌

  1. Experimental assessment of I-shaped steel beams with longitudinal stiffeners under lateral-torsional buckling vol.85, pp.207, 2018, https://doi.org/10.15446/dyna.v85n207.71892
  2. Simplified equations for Vierendeel design calculations of composite beams with web openings vol.27, pp.4, 2016, https://doi.org/10.12989/scs.2018.27.4.401
  3. Weight optimization of steel frames with cellular beams through improved hunting search algorithm vol.23, pp.5, 2016, https://doi.org/10.1177/1369433219884456
  4. Determination of displacements on built-up steel beams during experiments by image processing vol.179, pp.None, 2021, https://doi.org/10.1016/j.jcsr.2021.106560
  5. Numerical investigation on the flexural links of eccentrically braced frames with web openings vol.39, pp.2, 2016, https://doi.org/10.12989/scs.2021.39.2.171