Evaluation of Shear Resisting Capacity of a Conventional Reinforced Concrete Wall with Steel or Polyamide Fiber Reinforcement

Abstract

A concrete shear wall system is an ideal structural system that can effectively resist large horizontal cyclic loads such as earthquakes. In particular, a significant increase of the ductility in fiber reinforced concrete shear walls can prevent a brittle failure and thus can enhance seismic resisting capacity significantly. This study investigated the shear resisting capacity of shear wall specimens, which are constructed with steel fibers or polyamide fibers reinforced concrete, by comparing hysteresis curves obtained from reversal cyclic tests. The shear resisting force in the steel fiber reinforced concrete specimen was larger than those in plain and polyamide fiber reinforced concrete specimens, but the increase was not great. The shear resisting capacity of the polyamide fiber reinforced concrete specimen was larger than that of plain concrete specimen, but smaller than that of steel fiber reinforced concrete specimen.

Shear Bearing Capacity of Steel-Fiber-Reinforced Concrete Shear Wall under Low-Cycle Repeated Loading Based on the Softened Strut-and-Tie Model

“…The latest research results of scholars at home and abroad showed that adding SF into concrete can effectively improve the seismic performance of RC members, including the RHSC SW [22][23][24]. The seismic behavior of SFRC SW subjected to reversed cyclic loading had been tested by several scholars [3,[25][26][27]. Just as anticipated, because the randomly distributed SF can effectively improve anticracking properties, tensile strength, shearing property, toughness, durability, and seismic performance of matrix concrete, then they can greatly improve the seismic performance of RC SWs, reduce the degree of reinforcement aggregation, and increase construction efficiency [28].…”

Seismic Behavior of Steel-Fiber-Reinforced High-Strength Concrete Shear Wall with CFST Columns: Experimental Investigation

“…The results showed that the initial cracking load, ultimate bearing capacity, toughness and ductility were improved with an increase in hybrid fiber content. Lim [38], Kang [39] and Choun [40] carried out cyclic loading tests on SFRC shear walls. The experimental results indicated that the seismic performance of the shear wall was obviously improved by adding steel fiber.…”