Analysis and Design of Shearwalls for Earthquake Resistant Buildings Using Etabs

Abstract

The rising frequency of seismic occurrences and the expansion of multi-story structure development have made earthquake-resistant design a crucial component of structural engineeringIf buildings are not built with sufficient lateral loadresisting systems, lateral forces produced during earthquakes can result in excessive displacement, structural instability, and major damage. Because they offer more stiffness, strength, and stability, reinforced concrete shear walls are widely acknowledged as one of the best structural elements for enhancing a building's seismic performance. The analysis and design of shear walls for earthquake-resistant structures using ETABS is the main emphasis of this work. A multi-story structure made of reinforced concrete is modeled and examined under seismic and gravity loading scenarios. Material qualities, geometric configurations, loading conditions, and design parameters are established in compliance with the applicable Indian Standards when the structural model is created using ETABS. By changing the shear walls' placement within the structure, various structural configurations are taken into consideration in order to assess the efficacy of shear walls. Structural response characteristics including storey displacement, storey drift, base shear, storey stiffness, natural time period, and mode shapes are used to evaluate each model's earthquake behavior. The analytical findings show that adding shear walls to reinforced concrete structures greatly enhances their seismic performance by lowering lateral displacement and interstory drift while boosting overall stability and structural stiffness. Compared to traditional moment-resisting frame systems, buildings with appropriately positioned shear walls show better resistance to forces caused by earthquakes. The study also emphasizes how crucial shear wall placement and configuration are to obtaining effective structural performance and reducing seismic damage. For structural engineers and designers involved in the planning and construction of earthquake-resistant structures, the project's results offer useful information. The results validate the efficient application of shear walls as a cost-effective and dependable lateral load-resisting technology for reinforced concrete buildings situated in seismically active areas. The study also shows how effective ETABS is as a structural analysis and design tool for assessing and improving multi-story structures' seismic behavior.