Structural Behaviour of a Multistorey Building Constructed by Shear Walls

Shear walls are structurally efficient solution to stiffen a building structural system because the main function of a shear wall is to increase the rigidity for lateral load resistance. Shear walls in medium and high rise reinforced concrete buildings for the sake of interaction with the lateral forces, used by many of engineers, however past studies on the behavior and situation of shear wall indicated that shear walls has better behavior. The present study was carried out in a 15 story shear wall building, located in seismic zone 2.Two models was considered for the study, first one was the building constructed only by shear wall (Model-M1) and the second one was with RC-Frame structure with shear wall (Model-M2). Response spectrum analysis is conducted and from the response spectrum analysis, the maximum displacement obtained for building with for RC-Frame structure than the building with only shear wall, i.e. storey drift is reduced when shear wall is provided for entire structure. To analyze the wall-frame interaction behavior, lateral forces obtained from the equivalent static analysis were applied on the nodes of exterior faces. The study shows that, as the height of building increases, shear wall absorb more lateral force than the frame.