Large scale model tests of reinforced concrete slit shear walls

Abstract

Two 1/4 scale reinforced concrete slit shear wall models were tested. The two models tested were similar to each other except the details of the connecting beams which were designed such that the first model represented a lightly coupled wall system while the second a heavily coupled wall system. Both models were tested to failure by subjecting them to triangularly distributed lateral loads, but the loads were applied to the first model monotonically and to the second cyclically. From the test results, the load-deflection characteristics, crack patterns and failure mechanisms etc. of the models are investigated. Two failure modes are identified, and a simple analysis method for predicting the failure mode and ultimate strength of the slit shear wall system is proposed. Lastly, a brief discussion on the design criteria of slit shear walls is presented.