Authors :
Rasha M. Shareef Salman; Anis A. Mohamad Ali; Ammar Y. Tahaa
Volume/Issue :
Volume 10 - 2025, Issue 3 - March
Google Scholar :
https://tinyurl.com/tdh5pkz6
Scribd :
https://tinyurl.com/4rmt9kyz
DOI :
https://doi.org/10.38124/ijisrt/25mar1861
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Abstract :
This paper investigates the effect of steel reinforcement of the floor beams on the analysis results of different
floor to spandrel length and depth ratios(lf/ls) (hf/hs). This study investigates the behavior of seven full-scale spandrel-
floor beams using nonlinear three-dimensional finite element analysis via ANSYS 14.0. The results reveal that positive
reinforcement in the floor beams significantly enhances performance, particularly after cracking, by redistributing
internal stresses and allowing torque to transfer back to the floor beams. This interaction leads to increased load-carrying
capacity and reduced deflection without altering concrete cross-sections. Ultimately, the findings highlight the importance
of reinforcement strategies that satisfy both structural and economic requirements for optimizing spandrel-floor beam
assemblies.
Keywords :
Spandrel-Floor Beams, Compatibility Torsion, ANSYS 14.0.
References :
- American Concrete Institute “Report on Torsion in Structural Concrete, AC1 445.1R-12” reported by ACI-ASCE Committee 445, April 2013.
- Rausch, C. H., “Design of Reinforced Concrete in Torsion and Shear”, Technical Journal, Berlin, Germany, pp53.
- Lessing, N.N,“ Determination of load-Carrying Capacity of Rectangular Reinforced Concrete Elements Subjected to Flexure with Torsion”, Concrete and reinforced Concrete Institute Moscow, Russia, Study No.5, March 1959, PP. 5-28. Translated by Portland Cement Association.
- Hsu, T. T. C., “Torsion of Structural Concrete Behavior of Reinforced Concrete Rectangular Members”, Torsion of Structural Concrete, ACI Special Publication SP-18, 1968, pp. 261-306.
- Collins, M. P. and Lampert, P., “Redistribution of moments at cracking-The Key to simpler torsion design”, Analysis of structural systems for torsion, ACI publications, SP-35, Detroit, 1973, pp.343-384.
- Hsu, T.T.C. and Burton, K.T., “ Design of reinforced concrete spandrel beam”, Journal of the structural Division, Proc. of the ASCE, Vol.100, ST 1, January 1974, pp.209-229.
- Mohamad Ali, A. A., “Strength and Behaviour of Reinforced Concrete Spandrel Beams", PhD. Thesis, College of Engineering, University of Edinburgh,1983.
- Esaa, J., “Strength and Behavior of Reinforced Concrete Hollow Spandrel Beams”, M.Sc. Thesis, College of Engineering, University of Basrah,1992.
- Hago, A., W.; Elarabi, E., H., A., E.; Zarroug, A. and S., M. “Direct Design of Reinforced Concrete Beams Under Combined Bending, Shear and Torsion”, Sudan Engineering Society Journal, Volume 52 No.45, January 2006, pp.7-11.
- Jawad, N.A.M. “Strength and Behavior of Reinforced Concrete Spandrel Beam”, M.Sc. Thesis, College of Engineering, University of Basrah,1988.
- Muherdeen, E. H., “Failure Surface of Reinforced Concrete Spandrel Beams”, M.Sc. Thesis, College of Engineering, University of Basrah,1991.
- Mansure, M. A. and Rangan, B. V., “Torsion in Spandrel Beam”, Journal of the structural Division , proc. of the ASCE, Vol.104, ST 7, April 1978, pp.1061-1075.
- Salman, R. M., Mohamed Ali, A., “Parametric Study of the Behaviour of Reinforced Concrete Spandrel – Floor Beams”, IJERET Journal, Vol.4, Issue 7, August 2015.
- American Concrete Institute, “Building Code Requirements for Design of Reinforced Concrete”, a- ACI-318-19.
This paper investigates the effect of steel reinforcement of the floor beams on the analysis results of different
floor to spandrel length and depth ratios(lf/ls) (hf/hs). This study investigates the behavior of seven full-scale spandrel-
floor beams using nonlinear three-dimensional finite element analysis via ANSYS 14.0. The results reveal that positive
reinforcement in the floor beams significantly enhances performance, particularly after cracking, by redistributing
internal stresses and allowing torque to transfer back to the floor beams. This interaction leads to increased load-carrying
capacity and reduced deflection without altering concrete cross-sections. Ultimately, the findings highlight the importance
of reinforcement strategies that satisfy both structural and economic requirements for optimizing spandrel-floor beam
assemblies.
Keywords :
Spandrel-Floor Beams, Compatibility Torsion, ANSYS 14.0.