Analysis of RCC and Steel-Concrete Composite Building under Seismic Effect using ETABs

This research paper investigates the analysis of multi-storey buildings under seismic loading is a critical aspect of structural engineering, especially in regions prone to seismic activity. This study explores the seismic performance of two distinct building typologies conventional Reinforced Concrete (RCC) and Steel-Concrete Composite buildings using ETABS software. The research involves the analysis of a G + 20 storey building with irregular geometries, specifically C and L-shaped configurations, to simulate the complexity encountered in real-world scenarios. Both RCC and steel-concrete composite structures are designed for different seismic zones (II, III, IV, and V) as per Indian Standard codes, representing regions with varying levels of seismic hazard. In addition, the study incorporates multiple soil conditions, including soft, medium, and hard soil profiles, to assess the impact of ground conditions on the seismic performance of the buildings. ETABS software, a widely used tool in structural design and analysis, is employed for the modeling and evaluation of the buildings' dynamic behavior under seismic loads. The analysis includes the assessment of seismic parameters such as base shear, lateral displacement, and story drift for both building types across different seismic zones and soil conditions. The study aims to validate the results with available literature to ensure the accuracy and reliability of the findings. Through this comparative analysis, the study provides insights into the structural efficiency and performance of steel-concrete composite G + 20 storey irregular shape buildings versus traditional RCC G + 20 storey irregular shape buildings, offering valuable data for various seismic zones (II, III, IV, V) with varying soil conditions in diverse conditions.