Abstract:
Infill walls are widely used as partitions worldwide. Field evidence has shown that continuous infill walls can help reduce the vulnerability of a reinforced concrete structure. Often, engineers do not consider infill walls in the design process because the final distribution of these elements may be unknown to them, or because walls are regarded as non-structural elements. It is known that infill walls considerably change the behaviour of frames under lateral loads. Contribution of infill walls in the strength and stiffness of reinforced concrete (RC) frames is neglected in the design of RC frame buildings. This leads to incorrect idealization of the structurePrevious experimental research on the response of RC frames with masonry infill walls subject to static and dynamic lateral cyclic loads (1-2 etc. ) have shown that infill walls lead to significant increases in strength and stiffness in relation to bare RC frames.. Separation between masonry walls and frames is often not provided and, as a consequence, walls and frames interact during strong ground motion. This leads to structural response deviating radically from what is expected in the design.This study focuses on, several story building was designed with bricks which has different modulus of elasticity were selected for its infill walls. The infill wall was considered as weight and equivalent diagonal compression strut model. It is found that infill walls have significant effect on stiffness, period, lateral displacement, base shear force and structural behavior. The performance and rigidity of structure having infilling walls increased and these were exhibited positive behavior under seismic loads compared to structure having bare frame.
