Experimental and FEM Analyses of RC Beams with Radius Corner Arch at Bottom Tension Face

Document Type : Regular Paper

Authors

1 Department of Water Resources Management Engineering, College of Engineering, Al-Qasim Green University, Babylon 51013, Iraq

2 Department of Civil Engineering, College of Engineering, Al-Qasim Green University, Babylon 51013, Iraq

3 Department of Civil Engineering, College of Engineering, University of Kerbala, Kerbala, Iraq

4 Department of Medical Physics, College of Sciences, Al-Mustaqbal University, Babylon 51001, Iraq

Abstract

The present study includes experimental and numerical investigations of the behavior and the load carrying capacity of RC two-hinged beams with radius corner arch at the bottom face subjected to static loading conditions. The experimental program included four specimens with the same volume of concrete and amount of steel reinforcement but, with a different span of the arch (1180 mm, 900 mm, 740 mm, and 600 mm). The goals were to evaluate the effect of a span of the arch and to find the optimum ratio of the arch length to beam span for the maximum load capacity as well as to validate the numerical results taken from the finite element model. From the results of this work, it was found that the best load carrying capacity for the beam with a radius corner arch is when the arch length/beam span ratio is equal (0.62). Also, the FEM result seems efficient and gives good accuracy through comparison with the experimental results.

Highlights

  • The optimal arch length/beam span ratio is 0.62 for beams with radius corner arch to get on best loading capacity.
  • Beams with radius corner arch at the bottom tension face are smaller concrete strains.
  • The crack width is smaller as the length of the arch increases.
  • The deflected shape for beams with radius corner arch exhibited lesser deflection at mid-span.

Keywords

Main Subjects

References

[1]     Book: Thandavamoorthy T.S. “ Structural Analysis ” Oxford university press, first edition published in 2011 2011:2011.
[2]     Godínez-Domínguez EA, Tena-Colunga A, Juárez-Luna G. Nonlinear finite element modeling of reinforced concrete haunched beams designed to develop a shear failure. Eng Struct 2015;105:99–122.
[3]     Altaie E, Al-Ansari N, Knutsson S. Materials and the Style of Buildings used in Iraq during the Islamic period. J Earth Sci Geotech Eng 2012;2:69–97.
[4]     Alas RA. Computer program for the analysis of non-prismatic beams 1989.
[5]     Kaveh A, Mottaghi L, Izadifard RA. Sustainable design of reinforced concrete frames with non-prismatic beams. Eng Comput 2022;38:69–86. https://doi.org/10.1007/s00366-020-01045-4.
[6]     Archundia-Aranda HI, Tena-Colunga A, Grande-Vega A. Behavior of reinforced concrete haunched beams subjected to cyclic shear loading. Eng Struct 2013;49:27–42.
[7]     Luévanos-Rojas A. Mechanical elements of rectangular nonprismatic members for symmetrical parabolic haunches subjected to a uniformly distributed load. J Archit Eng Technol 2013;2:1–8.
[8]     Nabbat RA. Flexural and Shear Behavior of Non-Prismatic Reinforced High Strength Concrete Beams with Openings and Strengthened with CFPR Products 2015.
[9]     Jolly A, Vijayan V. Structural behaviour of reinforced concrete haunched beam: A study on ANSYS and ETABS. Int J Innov Sci Eng Technol 2016;3:495–500.
[10]   Naser MH, Falah MW, Hafedh AA, Naser FH. Parametric analysis and finite element modelling for shear behavior of positive haunched RC beams. AIP Conf Proc 2021;2404. https://doi.org/10.1063/5.0069066.
[11]   Elkersh IH, Lotfy E, Abd Ellatif E, Aboshosha MR. Flexural behavior of reinforced concrete beams with arched openings. IOSR J Mech Civ Eng 2020;17:25–36.
[12]   Sfakianakis MG, Fardis MN. Nonlinear finite element for modeling reinforced concrete columns in three-dimensional dynamic analysis. Comput Struct 1991;40:1405–19.
[13]   Al-Thabhawee DW. Nonlinear Analysis for Behavior of RC Arch Beams with Opening 2012.
[14]   Hamza BH. Behavior of RC Curved Beams with Openings and Strengthened by CFRP Laminates 2013.
[15]   Ali YA, Kadhum MJ. Nonlinear Analysis for behavior of Hollow Box Reinforced Concrete Arch Beams with Transverse Openings. Nonlinear Anal 2015;7.
[16]   Rad MM, Ibrahim SK, Lógó J. Limit design of reinforced concrete haunched beams by the control of the residual plastic deformation. Structures, vol. 39, Elsevier; 2022, p. 987–96.
[17]   Institute) ACI (American C. Report on high-strength concrete 2010.
[18]   ACI Committee 211. ACI 211.4R-93 Guide for Selecting Proportions for High-Strength Concrete with Portland Cement and Fly Ash. Man Concr Pract 1998;93:13.
[19]   Standard AA. Building code requirements for structural concrete (ACI 318-11). Am. Concr. Inst., 2011.
[20]   Ahmed A. Modeling of a reinforced concrete beam subjected to impact vibration using ABAQUS. Int J Civ Struct Eng 2014;4:227–36.
[21]   Nilforoush R, Esfahani MS. Numerical Evaluation of Structural Behavior of the Simply Supported FRP-RC Beams. Kungl. Tekniska Högskolan; 2012.

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History

  • Receive Date: 26 March 2023
  • Revise Date: 08 June 2023
  • Accept Date: 05 July 2023

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