Title: Punching Shear Failure in Reinforced Concrete Slabs with Compressive Membrane Action

Author(s): W. Salim and W. M. Sebastian

Publication: Structural Journal

Volume: 100

Issue: 4

Appears on pages(s): 471-479

Keywords: failure; punching shear, reinforced concrete; slab.

DOI: 10.14359/12656

Date: 7/1/2003

Abstract:
This paper presents the results of an experimental study of the ultimate punching load capacity of reinforced concrete slabs that are restrained by means of incorporating hoop reinforcement. Four reinforced concrete slabs with one control specimen were tested to failure. In addition, the application of plasticity theory to prediction of punching shear failure loads in restrained slabs is presented, in which a parabolic Mohr failure criterion is adopted for concrete. The proposed method allows for the effect of compressive membrane action and a membrane-modified flexural theory of elastoplasticity developed by others is used to calculate the compressive membrane forces. Predictions are made against results conducted by the authors as well as results from various researchers. The predictions are shown to be in good agreement with a wide range of experimental data from the literature.