Analysis of Shear Wall with Bracing in High Rise Building Using ETABS

Abstract

The current study is focusing on seismic response of structural systems and the application of shear walls at different locations and different bracing systems. The building is analyzed in accordance with Indian Standard code IS 1893 2016, zone 5, Fast nonlinear (FNA) Time History method has been employed for each model. ETABS software is used to examine the effect of structural system on seismic parameters. From the result it concludes that building with shear wall at Core and bracing in longer directions have better performance against earthquake effects. Building with different structural system induces strength and stiffness against earthquake activities. Shear wall (SW) reduces almost 59.4% lateral displacement along X-direction and 24.7% along Y-direction at core position in structure, other two positions like shear corner, shear periphery reduces displacement lesser compared to shear core. By providing Bracing system Base Shear increases around 3 times the value of general case, displacement decreases 52.17% along Y-direction for X, V, INV V-Bracing systems. Drift decreases around 54.36% for both X, V-Bracings. Drift for SW at Core reduces around 49.64% less compared to Bracing System. Combined effect of Bracing System and SW gives better result compared to individual, increases Base Shear 4 times compared to bare building, Decreases storey displacement 63.04%, decreases storey drift around 46.05% along X-direction.