SEISMIC RETROFITTING OF G+10 SOFT STOREY R.C.C. BUILDING

Abstract

Soft-floor buildings, characterized by open spaces on the first floor, pose challenges to seismic performance. To address this, braces and shear walls are commonly employed to reduce displacement and improve seismic resilience. Shear walls and braces enhance lateral stiffness, minimize displacement, and ensure safety. This study investigates the seismic response of soft-floor RCC buildings, considering parameters such as soft floor height, shear wall placement, and brace types and arrangements. The goal is to enhance structural safety without extensive alterations. Analysis is conducted in three phases: soft-storey analysis, shear wall implementation, and brace integration. Shear walls are assessed at the center and corners, while different brace arrangements are examined. Results reveal the effectiveness of shear walls in enhancing stiffness and reducing displacement. Incorporating bracing systems improves overall building performance. Cost-effective strategies for strengthening soft-floor structures are identified, with findings summarized based on seismic response.