Seismic Analysis of Multi-Storey RCC Building with Circular Shear Wall to Conventional Shear Wall

In the seismic design of multi Storey RCC buildings, reinforced concrete structural walls or shear walls, act as major seismic force resisting members. Structural walls provide efficient lateral stiffness and offer great potential for lateral load resistance. The properties of these seismic shears are important to evaluate the seismic response of the walls. In this project, main focus is to compare the performance of circular shear wall to rectangular shear wall in multi storied RCC building. In this study, Shear-walls are oriented in three different positions for circular and rectangular types of shear walls. The structure is considered as OMRF (ordinary moment resisting frame) structure. The structures are compared on four different parameters namely joint displacement, axial force, bending moment and base shear. The response of bare frame structure (structure with no shear walls) in the analysis of joint displacement, axial force, bending moment and base shear is also considered in comparison to circular and rectangular shear walls. Effectiveness of shear wall has been studied with the help of seven different models. Seismic forces are applied to the structure of Ground+10-storeys located in zone-III. STAAD Pro V8i software is used for the analysis of structures. The structure is considered as public building. The load conditions are taken from IS 1893:2002 (Part 1).