STUDYING THE BEHAVIOUR OF LIGHTWEIGHT DEEP BEAMS WITH OPENINGS

Authors

  • Dr. Oday Adnan Abdulrazzaq Civil Engineering Department, College of Engineering, Basrah University, Iraq
  • Ashraf Mahammed Khadhim Civil Engineering Department, College of Engineering, Basrah University, Iraq

DOI:

https://doi.org/10.29121/ijetmr.v6.i12.2019.558

Keywords:

Deep Beams, Light Weight Concrete, LECA, Opening in Beams

Abstract

In this study experimental tests were conducted to investigate the behavior of reinforced
concrete deep beam with openings using lightweight concrete. The experimental program
involved of testing thirteen simply supported deep beam specimens which tested under static
two-point loads. Light expanding clay aggregate (LECA) was used to produce lightweight
concrete. Test variables were the shape and size of openings, reinforcement around the
openings, position of the openings and shear span to depth ratio. It was found that the
behavior of deep beams which made of lightweight concrete is similar to that made of normal
concrete. It was concluded that the ultimate load and the measured maximum deflection in
beams that have circular openings are larger compared to that have rectangular openings. At
the same time, the ultimate load decreased and the measured values of maximum deflection
increased with increasing the size of the openings in deep beams. Also, it was found that
providing steel reinforcement around the openings caused an increasing in the load capacity
of the tested beams. Decreasing the shear span ratio from 0.5 to 0.4 caused an increasing in
the ultimate load and the measured maximum deflection.

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References

Kong, F.K., Reinforced Concrete Deep Beams, Taylor and Francis Inc., (2002)

Nawy, E.G., Reinforced Concrete–A Fundamental Approach, Prentice-Hall Inc., 1985.

Mansur, M. A., Concrete beams with openings: analysis and design,' M.A. Mansur, Kiang-Hwee Tan., (1999).

National Ready Mixed concrete association, structural lightweight concrete, Concrete in Practice, CIP 36, (2003)

ACI Committee 318, Building Code Requirements for Structural Concrete (318-14) and Commentary, American Concrete Institute, Detroit, (2014)

Shafigh p., Hassanpour M.M., Razavi S. V. and Kobraei M.,An investigation of the flexural behaviour of reinforced lightweight concrete beams, International Journal of the Physical Sciences, Vol. 6(10),May (2011).

G Campione and G Minafò, Behaviour of Concrete Deep Beams with Openings and Low Shear Span-to-Depth Ratio, Engineering Structures, Vol 41, 2012, pp 294–306. DOI: https://doi.org/10.1016/j.engstruct.2012.03.055

Khafaga M. A., Shear Behavior Of Reduced-Weight Reinforced Concrete Beams, Journal of Engineering Sciences, Assiut University, Vol. 40, No 1, January (2012).

H M Alsaeq, Effects of Opening Shape And Location on The Structural Strength of R.C. Deep Beams with Openings, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering, Vol 7, 2013.

Paul T. and Tharu B., Analytical Study on Lightweight Concrete Deep Beam, Transactions on Engineering and Sciences, Vol.2, N 10, October (2014).

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Published

2019-12-31

How to Cite

Abdulrazzaq, O. A., & Khadhim, A. M. (2019). STUDYING THE BEHAVIOUR OF LIGHTWEIGHT DEEP BEAMS WITH OPENINGS. International Journal of Engineering Technologies and Management Research, 6(12), 89–100. https://doi.org/10.29121/ijetmr.v6.i12.2019.558