Parametric study on seismic behavior of steel frame buildings subjected to different ground motions: Fid-Bau Portal

Parametric study on seismic behavior of steel frame buildings subjected to different ground motions

Pujari, Atul B. / Waghmare, Sakshi Satish

This research delves into the profound threat seismic events pose to buildings, specifically focusing on steel frame structures of varying heights—low-rise, mid-rise, and high-rise. Employing advanced numerical modeling and simulations, the study meticulously examines the impact of earthquake ground motion on these structures, aiming to enhance our comprehension of their behavior under dynamic loading conditions. The research develops detailed incorporating realistic material properties, geometries, and connection types. Various ground motion records, spanning different seismic hazard levels, are employed as input for nonlinear dynamic analyses, evaluating structural performance and seismic vulnerability. The study meticulously assesses displacement, acceleration, inter-storey drift, and damage patterns, offering crucial insights into the diverse seismic behaviors exhibited by buildings of different heights. For this study, we considered the parameters such as maximum storey displacement, storey drift, storey shear and damping ratios that are scrutinized for their influence on structural responses under seismic loading. In addition, the research investigates the efficacy of seismic retrofitting strategies, aiming to bolster earthquake resilience. Ultimately, the findings contribute significantly to refining seismic design guidelines and retrofitting approaches for steel frame buildings, thereby advancing the seismic resilience of urban infrastructure and ensuring the safety of inhabitants in seismically active regions.