International Concrete Abstracts Portal

Title: Shear in One-Way Slabs under Concentrated Load Close to Support

Author(s): Eva O. L. Lantsoght, Cor van der Veen, and Joost C. Walraven

Publication: Structural Journal

Volume: 110

Issue: 2

Appears on pages(s): 275-284

Keywords: effective width; experiments; one-way slabs; punching; shear

Date: 3/1/2013

Abstract:
One-way slabs under concentrated loads are generally designed for shear by checking the beam shear resistance and the punching shear resistance over an effective width. Only a small number of test data regarding the shear resistance of one-way slabs subjected to concentrated loads is currently available. To be able to better evaluate the shear resistance of one-way slabs, a series of experiments was carried out on continuous one-way slabs (5 m x 2.5 m x 0.3 m [16.4 ft x 8.2 ft x 11.8 in.]) subjected to concentrated loads close to the supports, in which the load position, transverse reinforcement ratio, and concrete strength were varied. The test results are compared with code provisions and a method developed by Regan. The results show a different behavior in shear for slabs under concentrated loads than for beams.