Flat Slab And Shear Wall Interaction Of Multi-Storey Rcc Buildings

Abstract

The world is progressing towards modernization and urbanization. The basic step towards it is to improve the design of tall building which is the only alternative to provide shelter to many on a single land. Tall structures are suitable for commercial as well as residential living. The design of multi-storied structures should be such that it possesses adequate strength, stability, rigidity and durability in a longer run. Apart from these factors, modern trend is also towards aesthetic view which should also be considered while designing structures. The reinforced concrete flat slab is a slab which is generally used in multi-storied structures due to its easy installation and it also reduces the cost of formwork and construction time. A reinforced concrete flat slab is directly supported on columns without any beam member. As the lateral load increases with the height it is very crucial to consider it while designing a multi-storied building. The flat slab floor system has very weak resistance to lateral loads (wind and earthquake loads). Now to resist these lateral loads shear walls are to be introduced which resist lateral loads from wind and earthquake. The shear wall is a relatively thin wall which has resistance to sway movements caused due to lateral loadings. The aim of the research work presented in this paper is to examine the effect of shear wall on the flat slab structure system. The static analysis of the structure is carried out on the software STAAD PRO 2007. The case study is also presented for the design and analysis of 10, 20 and 30 storied frames with flat slab supported system and flat slab floor system with shear wall. The comparison is made between the Principal, Von Mises, Tresca stresses due to static and earthquake loads on structure for 10, 20 and 30 storied flat slab floor systems with and without shear wall of varying thickness.