Seismic performance of reinforced concrete building with flat slab

Abstract

Flat slab building has many advantages over conventional RC frame building in terms of architectural flexibility, use of space, easier formwork and shorter construction time. But, flat slab buildings are significantly more flexible than the conventional RC frame building, thus becoming more vulnerable to seismic loading. Therefore, in order to improve the performance, flat slab are usually provided with drop and column head or capital. In this paper, a (G+3) multi-storied building having flat slab with drop, flat slab with drop and column head and conventional slab systems with brick masonry infill wall has been analyzed separately for seismic zone V with soft soil by using SAP 2000 software and to improve the performance of building having flat slabs under seismic loading, provision of a portion of shear wall is also proposed in the present work. Linear dynamic response spectrum analysis is performed on the structures to get the seismic behavior and compare the parameters like storey displacement, storey drift, base shear and time period.