The majority of the time, infills are utilised as exterior walls that shield the building from the outside environment and as interior partition walls. Typically, the brick infill panels are classified as architectural (non-structural) elements and are not taken into account during the design phase. In seismic zones, masonry infill walls with reinforced concrete (RC) frames have been widely used for commercial, industrial, and multi-story residential purposes. This thesis examines how multistory buildings with open (soft storey) ground floors are inherently vulnerable to collapsing due to seismic stresses, despite the fact that these buildings are still often constructed in today's industrialised nations. The technical community's objections to underground parking facilities are greatly outweighed by the social and practical need for such structures.