Failure Characteristics and Critical Punching Perimeter of High Strength Concrete Panels

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
© 2014 by IJETT Journal
Volume-13 Number-8
Year of Publication : 2014
Authors : Faris Rashied Ahmed , Bayan S. Al Numan


Faris Rashied Ahmed , Bayan S. Al Numan. "Failure Characteristics and Critical Punching Perimeter of High Strength Concrete Panels", International Journal of Engineering Trends and Technology (IJETT), V13(8),367-372 July 2014. ISSN:2231-5381. published by seventh sense research group


This research presents an experimental program for investigating punching shear strength of slabs, consisting of 27 high and normal strength concrete slabs. The test data from the experiment are analyzed and divided into three series primarily concerned with the effects of three variables on the punching strength of high-strength (HS) concrete slabs: the concrete strength, the slab depth and the column size and shape. The tests showed that the critical perimeter is located at a distance (1.5d) from the load area.


[1] Moe, J. "Shearing Strength of Reinforced Concrete Slabs and Footings under Concentrated Loads", Portland Cement Association, Research and Development Laboratories, Bulletin D47, April, 1961.
[2] Herzog, M., "A New Evaluation of Earlier Punching Shear Tests", Concrete, Vol.4, No.12, London, England, Dec., 1970, pp.448 450.
[3] Regan, P.E., "Behavior of Reinforced Concrete Flat Slabs", CIRIA Report No.89, Construction Industry Research and Information Association, London, 1981.
[4] Rankin, G.I.B.“Predicting the punching strength of conventional slab-col specimens”, Proc. Instn. Civ. Eng, Part1, 82, April, 1987, 327-346.
[5] Gardner, N.J. "Relationship of the Punching Shear Capacity of Reinforced Concrete Slabs with Concrete Strength", ACI Journal, February 1990, pp.66 71.
[6] Iraqi specification No. 45 for natural aggregate used in concrete and construction, 1984
[7] ACI 221.4R-93 "Guide for Selecting Proportions for High-Strength Concrete with Portland Cement and Fly Ash", Part 1: Materials and General properties of concrete, PP.13, Detroit, Michigan 1994.
[8] ACI Committee 211, "Guide for Selecting Properties for High-Strength Fiber Reinforced Concrete Beams", Structural Eng and Mechanics, an International Journal, Vol.8, No.6, 1999, pp.531-546.
[9] British Standard (BS1881) “Methods of testing concrete. Methods of testing hardened concrete” British Standard Institution, Part 4, 1983.
[10] Neville, A. M. "Properties of Concrete" Pitman publishing Limited, London`s 4th Edition 2000, PP. (674-760).
[11] Whitney, C.S., "Ultimate Shear Strength of Reinforced Concrete Flat Slabs, Footings, Beams, and frame Members without Shear Reinforcement", Journal of the American Concrete Institute, ACI, Vol.54, No.4, Oct., 1957, pp.265 298.
[12] D. Tuan Ngo, "Punching Shear Resistance of High Strength Concrete Slabs", Electronic Journal of Structural Eng, Dept of Civil and Env Eng, Uni of Melbourne, 2001, pp.52 59,
[13] CEB-FIP, 1993, CEB-FIP Model Code 1990. Bulletin d’information, 213/214, Lausanne, Switzerland, 1993 pp. 33-51.
[14] Sofia E. and Kimya F. “Punching Shear in Reinforced Concrete Slabs Supported on Edge Steel Columns”, MSc Thesis, Civil and Env Eng Dept., Division of Structural Eng, CHALMERS UNI OF TECHNOLOGY, Göteborg, Sweden 2010.

Punching, Shear, High Strength Concrete, Flat Slabs, Critical Path, and Effective Depth