International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 07 | July-2017
p-ISSN: 2395-0072
www.irjet.net
COMPARATIVE STUDY ON DYNAMIC BEHAVIOUR OF MULTI-STOREY BUILDING WITH AND WITHOUT COUPLED SHEAR WALL SYSTEM Sudeep P E1, Guruprasad T N2, M A Nagesh3, Raghu K S4 1P
G Student, Computer Aided Design of structures, Shridevi Institute of Engineering and Technology, Tumakuru, Karnataka, India 2Assistant Professor, Department of Civil Engineering, Shridevi Institute of Engineering and Technology, Tumakuru, Karnataka, India 3Professor, Department of Civil Engineering, Shridevi Institute of Engineering and Technology, Tumakuru, Karnataka, India 4Structural Engineer, SSC R and D Centre Bangalore, Karnataka, India ---------------------------------------------------------------------***--------------------------------------------------------------------Abstract - In high and medium rise structures to resist lateral forces, coupled shear walls are one of the systems commonly used. In multistory building should not collapse or is induced severe damage during earthquake actions so, for this reason coupled shear walls are used. It should be having high strength, high ductility, high energy absorption capacity and high shear stiffness to limit lateral deformations. In the project, the building with without coupled shear wall is considered and the same building is with coupled by two shear wall with including flat slab with drop panel in Soft Soil Condition with different seismic zone condition is considered, then compare the behavior of these buildings are studied. Analysis is done by using ETABS software for static and dynamic case. Key Words: Coupled Shear wall, Flat Slab with drop, Storey Displacement, Storey Drift, Base Shear, Time Period and ETABS. 1 INTRODUCTION Building is a structure in which, it consists of wall and roof. Where there are presents more or less permanently in level surface, as house or factory. Building having so many verities like shape, size and function. Has been consider throughout the history for a huge no of factor from building materials available, ground conditions, specific uses and aesthetic reasons A multi-story building are supports two or more floors above ground. There is no formal restriction the height of such a building or the member of floors a multi story building may contain, through taller building do face more practical difficulties. 1.1 Seismic Load In General Dynamic motions are occurred when the building is subject to earthquake. Inertia force acts to the building in opposite towards the acceleration of earthquake excitation there inertia force is called seismic loads, terms like time and space where seismic loads are Š 2017, IRJET
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Impact Factor value: 5.181
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not constant. Maximum storey shear force is consider, where it act as a most influential to the static loads give maximum storey shear force for each floor 1.2 Wind Load Wind load is a one of the type of lateral load; the positive or negative force of the wind acting on a structure, wind applies a positive pressure on the windward side of building and a negative suction to the leeward side. Wind load can appear in any unexpected directions. Variations of wind speed will be directly proportional to the magnitude of the pressure that appears over the surface. Here wind may appear either positive or negative pressure where it will be influence by architectural plan or design 1.3 Lateral Earth Pressure It is the type of lateral loads in which, it is the pressure that soil exerts in the horizontal direction. Its depends on Shear strength characteristics of soil, Lateral strain condition, Pore water pressure, State of equilibrium of soil and wall and ground surface shape. Lateral earth pressure say that below the ground there will be flow of water it may appears the lateral pressure over the building. Density of liquid is always directly proportional to the lateral pressure. 1.4 Shea Wall Shear wall are the structure use to resist lateral forces like wind, seismic and lateral earth pressure. Shear wall are commonly placed between column links, stair walls, lift walls etc. It’s transferring the earthquake and wind load to sub structure. During the earthquake happen there generate waves which will effects over the surface of the earth.
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