Experimental study on stress transfer at the connection between the corner reinforcement unit placed at the L-shaped corner and the main reinforcement bar

Abstract

A reinforcement unit for conner of concrete structures previously developed by the authors was improved to make its structure simpler. To clarify force transfer characteristics between main reinforcement bar and the improved reinforcement unit, a uniaxial tensile test of the simplified specimens was conducted. It was founded, as a result, if the stiffness of the connection flat bar is insufficient, the force of the main reinforcement bar was not transfared to the angle steel, then the effective propagation rate decreased and the connection part was destructed.