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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: CRC 80 REEXAMINATION OF PUNCHING SHEAR STRENGTH AND DEFORMATION CAPACITY OF CORNER SLAB-COLUMN CONNECTION
Author(s): MARNIE B. GIDUQUIO, MIN-YUAN CHENG, LANGA S. DLAMINI
Appears on pages(s):
Abstract:Effects of slab flexural reinforcement on the punching shear strength and deformation capacity of corner slab-column connections without shear reinforcement are evaluated in this study. Six isolated corner slab-column subassemblages were tested under combined gravity-type loading and lateral displacement reversals. Results from present and previous studies indicate that punching shear strength and deformation capacity per ACI 318-14 is not conservative for corner slab-column connections. For connections subjected to gravity-type loads only, a shear strength model considering effects of the equivalent slab top flexural reinforcement ratio and
the critical section aspect ratio (bo/d) is proposed. For connections subjected to combined gravity-type loads and lateral displacement reversals, the gravity shear ratio determined based on the proposed model improves applicability of the shear decay model per ACI 318-14.
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