Efficiency of Various Punching Shear Reinforcement Systems for Flat Slabs

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Title: Efficiency of Various Punching Shear Reinforcement Systems for Flat Slabs

Author(s): Josef Hegger, Alaa G. Sherif, Dominik Kueres, and Carsten Siburg

Publication: Structural Journal

Volume: 114

Issue: 03

Appears on pages(s): 631-642

Keywords: code comparison; flat slabs; punching shear; punching shear reinforcement; punching shear systems; punching tests

Date: 5/1/2017

Abstract:
Over the last 20 years, the Institute of Structural Concrete at RWTH Aachen University has conducted numerous punching tests on interior slab-column connections with different types of punching shear reinforcement. Within the tests, different types and arrangements of stirrups, lattice girders, and double-headed studs were used as punching shear reinforcement. This paper summarizes the results of 39 punching tests and compares the punching shear resistances obtained from the tests with the punching shear capacity of flat slabs without punching shear reinforcement according to ACI 318-14 and Eurocode 2 along with the German Annex.