Seismic Analysis of Step-back Set-back Building Resting on Sloping Ground with Shearwall
Durga Ashtake, Dr. S.A. Bhalchandra
RC building (Regular), Response spectrum, Sloping ground, Shear wall, Multistory.
The study compares the seismic performance of step back set back building resting on slope (27°) in terms of various factors such as maximum story displacement, story drift, base shear and time period. Shear walls with thickness of 200 mm are placed at different positions. This study presents the seismic behavior of the Regular plan shear wall at corner locations. The results of the study reveal that the position of shear wall will affect the attraction of forces, so that shear wall must be in proper position. In Top storey displacement of all buildings without shear wall is maximum in X-direction and in Y-direction. As we provide shear wall the average displacement reduction is 35%-37% in X-direction and 37%-43% in Y-direction. The storey drift is maximum in 8th storey and average reduction in percentage is 65% and 74% in X-direction and Y-direction simultaneously. Average 24% more base shear is experienced by the building having shear wall configuration when compared to the building without shear wall. The overall performance of the building is influenced by the presence of shear walls, highlighting their importance in enhancing seismic resilience. From above it can be concluded that, top story displacement, storey drift and time period of the Stepback-Setback building with six steps from the top are all less than those of regular building.
Article Details
Unique Paper ID: 165961

Publication Volume & Issue: Volume 11, Issue 1

Page(s): 2167 - 2171
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