Seismic Analysis of Multi-storied Building With & Without Shear Wall Using ETABS

Abstract

This study presents a comparative structural analysis of a 12-story reinforced concrete building using the ETABS software. Three different analytical models were developed to evaluate the impact of shear walls on the overall structural performance. Model 1 represents a conventional moment-resisting frame without shear walls, while Model 2 and Model 3 incorporate shear walls in different configurations. The analysis focuses on key structural response parameters, including story displacement, story drift, and base shear under lateral loading conditions. The results demonstrate that the inclusion of shear walls significantly enhances the stiffness and stability of the structure, leading to reduced lateral displacements and inter-story drifts. Additionally, variations in shear wall positioning between Model 2 and Model 3 show notable differences in performance, highlighting the importance of optimal shear wall placement in high-rise building design. From the results, it can be observed that the maximum story displacement for Model-1 is 3", while for Model-2 it is 0.727", and for Model-3 it is 0.714". This study provides insights into the effectiveness of shear walls in improving seismic performance and offers practical guidance for structural engineers in selecting appropriate lateral load-resisting systems.