IARJSET - Science, Engineering and Technology

Abstract

2 Abstract: This paper deals with the non-linear analysis of frame for various positions of shear wall in a building frame. In this present study, the focus is to identify effective location of shear wall in multi-storey building. Considering model one is bare frame structural system and other three models are dual type structural system. An earthquake load is applied to a building of eight storey is located in zone II, zone III, zone IV and zone V as per Code Provision IS1893- 2002. The analysis has been carried out using ETABS software. Pushover curves have been developed and compared for various models. It has been observed that structure with shear wall at appropriate location is more significant in case of displacement and base shear. Shear wall is one of the excellent means of providing earthquake resistance to multi-storeyed reinforced concrete building. Behavior of structure during earthquake motion depends on distribution of weight, stiffness and strength in both horizontal and vertical planes of building. To reduce the effect of earthquake reinforced concrete shear walls are used in the building. These can be used for improving seismic response of buildings. Structural design of buildings for seismic loading is primarily concerned with structural safety during major Earthquakes, in tall buildings, it is very important to ensure lateral stiffness to resist lateral load. The provision of shear wall in building to achieve rigidity has been found effective and economical. Shear walls are usually used in tall building to avoid collapse of buildings. When shear wall are situated in advantageous positions, they can form an efficient lateral force resisting system. The major criteria now-a-days in designing RCC structures in seismic zones is control of lateral displacement resulting from lateral forces. The effort has been made for investigate the effective location of shear wall for lateral displacement and Base Shear in RCC Frames. For this study four types of structures, with G+7 are considered which one of the frame without shear wall and other three with shear wall in various position. Non-linear static analysis (pushover analysis) was carried out four types of frames and the frames were compared with the push over curves. Displacement and Base shear is calculated from the curves and compared. The nonlinear analysis of a frame has become an important tool for the study of the concrete behavior including its load-deflection pattern and cracks pattern. It helps in the study of various characteristics of concrete member under different load conditions.