Effect of Shear Reinforcement on Punching Shear Strength of Reinforced Concrete Slabs

(*) Corresponding author

Authors' affiliations

DOI's assignment:
the author of the article can submit here a request for assignment of a DOI number to this resource!
Cost of the service: euros 10,00 (for a DOI)


This paper presents the results of an experimental study on the punching shear capacity of reinforced concrete slabs. Eight square slabs were tested under the effect of concentrated patch load. All tested slabs were simply supported along the four sides.  Firstly, the effect of the percentage of flexural reinforcement was studied. Secondly, the effect of providing top and mid-height steel reinforcement square meshes was considered. Finally, three special punching shear reinforcement schemes were taken into consideration. Test results revealed the beneficial effect of flexural reinforcement in enhancing the punching shear capacity of the slabs. Also, the presence of top square mesh, mid-height square mesh, or the use of special punching shear reinforcement significantly increased the punching shear capacity of the slabs. Furthermore for all tested slabs, a comparison was performed between the experimental ultimate punching loads and those obtained from the equations provided by codes of practice. The results varied significantly from one code to another. However, it was found that the equations presented by the Egyptian code were the most conservative among the studied codes. This is due to the fact that such equations completely ignore the beneficial effect of the flexural and punching shear reinforcement on the punching strength of reinforced concrete slabs and footings
Copyright © 2013 Praise Worthy Prize - All rights reserved.


Codes of Practice; Punching Strength; Reinforced Concrete; Slabs; Shear Reinforcement

Full Text:



Stein, T., Ghali, A., and Dilger, W., 2007, "Distinction between Punching and Flexural Failure Modes of Flat Plates", ACI Structural Journal, V.104, No 3, May-June, pp. 357-365.

Guandalini, S., Burdet, O. L., and Muttoni, A., 2009,"Punching Tests of Slabs with Low Reinforcement Ratios", ACI Structural Journal, V.106, No. 1, January-February, pp. 87-95.

Brikle, G., and Dilger, W. H., 2008, “Influence of Slab Thickness on Punching Shear Strength”, ACI Structural Journal, V.105, No. 2, March-April, pp. 180-188.

Broms, C. E., 2000, "Elimination of Flat Plate Punching Failure Mode", ACI Structural Journal, V.97, No. 1, January-February, pp. 94-101.

Oliveira, D. R., Melo, G. S., and Regan, P. E. 2000,"Punching Strengths of Flat Plates with Vertical or Inclined Stirrups" ACI Structural Journal, V.97, No. 3, May-June, pp. 485-491.

Lips, S., Ruiz, M. F., and Muttoni, A., 2012,"Experimental Investigation on Punching Strength and Deformation Capacity of shear-Reinforced Slabs", ACI Structural Journal, V.109, No. 6, November-December, pp. 889-900.

Muttoni, A., 2008,"Punching Shear Strength of Reinforced Concrete Slabs without Transverse Reinforcement", ACI Structural Journal, V.105, No. 4, July-August, pp. 440-450.

Salim, W., and Sebastian, W. M., 2002,"Plasticity Model for Predicting Punching Shear Strengths of Reinforced Concrete Slabs", ACI Structural Journal, V.99, No. 6, November-December, pp. 827-835.

Salim, W., and Sebastian, W. M., 2003" Punching Shear Failure in Reinforced Concrete Slabs with Compressive Membrane Action" ACI Structural Journal, V.100, No. 4, July-August, pp. 471-479.

Gardner, N., 2011, "Verification of Punching Shear Provisions for Reinforced Concrete Flat Slabs", ACI Structural Journal, V.108, No. 5, September-October, pp. 572-580.

ACI Committee 318, “Building Code Requirements for Reinforced Concrete (ACI 318-08) and commentary (ACI 318R-08),” American Concrete Institute, Farmington Hills, Mich., USA, 2008.

Eurocode 2: Design of Concrete Structures – Part 1: General Rules and Rules for Buildings; The European Standard EN1992-1-1:2004.

The Egyptian Code for Design and Construction of Reinforced Concrete Structures”, ECP 203-2007, Ministry of Housing, Egypt.


  • There are currently no refbacks.

Please send any question about this web site to info@praiseworthyprize.com
Copyright © 2005-2024 Praise Worthy Prize