Effects of Wall-RC Frame Interconnection on Masonry Infilled Wall Behavior Under In-plane Lateral Loading

Abstract

This research aims to evaluate the behavior of masonry walls under lateral in-plane loading. In order, to develop an efficient wall-frame connection strengthening method. To increase the lateral load resistant performance and reduce structural damage of seismic resistant structures. Four specimens of masonry wall-frame structural components were tested under in-plane horizontal cyclic loads. Based on the results, the load transfer capability of the beam-to-wall connection provided a significant effect on horizontal load resistance and damage pattern of the wall. The efficient connection must be provided adequate load transfer capability and allows a slight slip between the wall and frame occurred. The combination of steel shear dowels and reinforced tie beam as the beam-to-wall connection showed a suitable load transfer capability. Once the transferred load exceeds a certain threshold, a slight slip can occur between the wall and beams. Consequently, the both wall’s damages and out-of-plane deformation were reduced.