Steel and Composite Structures

  • 제28권4호
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  • Pages.403-414
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  • 2018
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Lateral-torsional buckling of functionally graded tapered I-beams considering lateral bracing

  • Rezaiee-Pajand, Mohammad (Department of Civil Engineering, Ferdowsi University of Mashhad) ;
  • Masoodi, Amir R. (Department of Civil Engineering, Ferdowsi University of Mashhad) ;
  • Alepaighambar, Ali (Department of Civil Engineering, Ferdowsi University of Mashhad)
  • 투고 : 2017.06.03
  • 심사 : 2018.06.04
  • 발행 : 2018.08.25
⟨ 이전 논문 다음 논문 ⟩

초록

In this paper, the lateral-torsional buckling of axially-transversally functionally graded tapered beam is investigated. The structure cross-section is assumed to be symmetric I-section, and it is continuously laterally supported by torsional springs through the length. In addition, the height of cross-section varies linearly throughout the length of structure. The proposed formulation is obtained for the case that the elastic and shear modulus change as a power function along the beam length and section height. This structure carries two concentrated moments at the ends. In this study, the lateral displacement and twisting angle relation of the beam are defined by sinusoidal series. After establishing the eigenvalue equation of unknown constants, the beam critical bending moment is found. To validate the accuracy and correctness of results, several numerical examples are solved.

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참고문헌

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피인용 문헌

  1. Simplified approach to estimate the lateral torsional buckling of GFRP channel beams vol.77, pp.4, 2018, https://doi.org/10.12989/sem.2021.77.4.523