USE OF FLAT SLABS IN MULTI-STOREY COMMERCIAL BUILDING

In present era, Flat slab buildings are commonly used for the construction. The use of flat slab building provides many advantages in terms of architectural flexibility, use of space, easier formwork and shorter construction time. The structural efficiency of the flat-slab construction is hindered by its poor performance under earthquake loading. The performance of flat slab and the vulnerability of purely flat slab models under different load conditions and under different grades of concrete were studied and for the analysis, seismic zone III is considered. The analysis is done with using E-Tabs software. It is necessary to analyze seismic behavior of building for different grades of concrete to see what changes are going to occur if the grade flat slab building changes. Therefore, the characteristics of the seismic behavior of flat slab suggest that additional measures for guiding the conception and design of these structures in seismic regions are needed and to improve the performance of building having flat slabs under seismic loading. The object of the present work is to compare the behaviour of multi-storey commercial buildings having different types of flat slabs with different grade of concrete and under seismic forces. Present work provides a good source of information on the parameters lateral displacement, storey drift, storey shear, column moments and axial forces, time period. Keywords— Flat Slab, Types of flat Slab, Grade of Concrete