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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: Evaluation of Steel Fiber Reinforcement for Punching Shear Resistance in Slab-Column Connections - Part I: Monotonically Increased Load
Author(s): Min-Yuan Cheng and Gustavo J. Parra-Montesinos
Publication: Structural Journal
Appears on pages(s): 101-109
Keywords: fiber reinforcement; punching sheer; steel.
Abstract:Results from an experimental investigation aimed at evaluating the effectiveness of steel fiber reinforcement for increasing punching shear strength and ductility in slabs subjected to monotonically increased concentrated load are presented. Ten slab-column connections were tested to failure. The main test parameters evaluated were: 1) fiber geometry (hooked or twisted), 2) fiber strength (1100, 1800, or 2300 MPa [160, 260, or 334 ksi]), 3) fiber volume fraction (1% or 1.5%), and 4) slab tension reinforcement ratio (0.56% or 0.83% in each principal direction). Out of the fiberreinforced concretes (or mortar) evaluated, those reinforced with a 1.5% volume fraction of either regular strength (1100 MPa [160 ksi]) or high-strength (2300 MPa [334 ksi]) hooked steel fibers led to the best performance in terms of punching shear strength and deformation capacity. These two fiber-reinforced concretes (FRCs) were therefore selected for further evaluation in connections subjected to lateral displacement reversals, as described in the companion paper.
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