Dynamic analysis of RC building with comparison between Shear Wall and Bracing System using STAAD PRO Software

Abstract

Buildings suffer seismic stresses during an earthquake that may cause lateral and torsional deflections, therefore influencing structural stability as well as occupant comfort. Minimising these impacts and improving general safety in multi-story structures depend on enough lateral stiffness being ensured. Structural performance of reinforced concrete (RC) frame structures is enhanced using many lateral load-resisting techniques. Among them, shear walls and cross bracings are most often used since they withstand seismic stresses very well. While cross bracing increase rigidity by effectively distributing stresses throughout the construction, shear walls provide great strength and stiffness, hence limiting lateral displacements. This work investigates a G+8 residential RC structure with shear walls placed at many points and cross bracings. STAAD PRO program is used for the analysis per IS 1893:2002 recommendations. Different models are created to evaluate the impact of cross bracing positioned at the building's midsections and corners as well as shear walls.
Important structural factors like lateral displacement, base shear, storey drift, frequency, and maximum moment are evaluated by dynamic analysis. This work offers understanding of how well various lateral load-resisting methods improve structural stability and seismic performance.