Title:
Design of Concrete Slabs for Punching Shear: Controversial Concepts
Author(s):
Amin Ghali, Ramez B. Gayed, and Walter Dilger
Publication:
Structural Journal
Volume:
112
Issue:
4
Appears on pages(s):
505-514
Keywords:
ductility; flat plates; flexure; punching; reinforcement; seismic; shear; slab-column connections
DOI:
10.14359/51687707
Date:
7/1/2015
Abstract:
The basic requirements for punching shear in concrete slabs are the same in the ACI 318-14 code and the guides ACI 421.1R-08, ACI 421.2R-10, and ACI 352.1R-11. However, the equations and the details of the shear reinforcement to satisfy the basic requirements are different in ACI 352.1R-11 from the ACI 421 guides. The agreements and differences of the requirements in the four references are summarized. The comparisons, the discussions, and the recommendations in the present paper could improve future editions of the code and the guides to enhance safety and effectiveness of shear reinforcement.