Shear Resistance of One-Way Slabs Under Concentrated Loads


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Title: Shear Resistance of One-Way Slabs Under Concentrated Loads

Author(s): P. E. Regan and H. Rezai-Jorabi

Publication: Structural Journal

Volume: 85

Issue: 2

Appears on pages(s): 150-157

Keywords: concrete slabs; loads (forces); one-way slabs; punching shear; reinforced concrete; shear properties; Structural Research

Date: 3/1/1988

Twenty-nine tests of one-way spanning slabs subjected to concentrated loads and failing in shear are reported. It is shown that analyses using current code provisions and making separate calculations of full-width one-way shear strengths and punching resistances are inappropriate. It is proposed that component shears due to symmetric load spreading and longitudinal spanning should be summed and equated to a limit value. This approach is shown to correlate well with the results of the reported tests and others in the literature.