Structural Engineering and Mechanics

  • 제55권1호
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  • Pages.1-27
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  • 2015
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Parametric analysis and torsion design charts for axially restrained RC beams

  • Bernardo, Luis F.A. (Department of Civil Engineering and Architecture, Centre of Materials and Building Technologies (C-made), University of Beira Interior) ;
  • Taborda, Catia S.B. (Department of Civil Engineering and Architecture, Centre of Materials and Building Technologies (C-made), University of Beira Interior) ;
  • Gama, Jorge M.R. (Departments of Mathematics, University of Beira Interior, Center of Mathematics)
  • 투고 : 2013.02.25
  • 심사 : 2014.05.09
  • 발행 : 2015.07.10
⟨ 이전 논문 다음 논문 ⟩

초록

This article presents a theoretical parametric analysis on the ultimate torsional behaviour of axially restrained reinforced concrete (RC) beams. This analysis is performed by using a computing procedure based on a modification of the Variable Angle Truss Model. This computing procedure was previously developed to account for the influence of the longitudinal compressive stress state due to the axial restraint conditions provided by the connections of the beams to other structural members. The presented parametric study aims to check the influence of some important variable studies, namely: torsional reinforcement ratio, compressive concrete strength and axial restraint level. From the results of this parametric study, nonlinear regression analyses are performed and some design charts are proposed. Such charts allow to correct the resistance torque of RC beams (rectangular sections with small height to width ratios) to account for the favorable influence of the axial restraint.

키워드

참고문헌

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피인용 문헌

  1. Generalized Softened Variable Angle Truss Model for PC Beams under Torsion vol.12, pp.1, 2018, https://doi.org/10.1186/s40069-018-0285-0
  2. Prestressed concrete beams under torsion-extension of the VATM and evaluation of constitutive relationships vol.61, pp.5, 2017, https://doi.org/10.12989/sem.2017.61.5.577
  3. Effective torsional strength of axially restricted RC beams vol.67, pp.5, 2015, https://doi.org/10.12989/sem.2018.67.5.465
  4. Test on pure torsion behavior of channel steel reinforced concrete beams vol.44, pp.None, 2015, https://doi.org/10.1016/j.jobe.2021.102967