MODAL ANALYSIS OF CONVENTIONAL RCC STRUCTURE WITH STEEL BRACING

Abstract

It is a well-known fact that high rise reinforced structures are vulnerable to lateral loadings from things like earthquake and wind stresses. Bracing systems have the excellent benefit of adding just a tiny amount of bulk to the structure while significantly enhancing its performance. Building modelling is done both with and without a bracing system in this study. Analysis that is both linear and dynamic is being done. The structure with various types of bracings and without the bracings is analysed using the equivalent static technique and the response spectrum approach. The diagonal bracings are in the form of an x-shaped v and an inverted v. In terms of drifts, displacements, base shear force, and bend moments, the analysis's findings are then compared. These bracings can withstand earthquake and wind loads and must be used to increase the structure's performance. Significant losses during an earthquake can harm the earthquake, and in the worst situation, a collapse may occur. Steel bracings are to be used in the structure to give resistance and to bear lateral stresses put on the structure by wind and earthquake in order to prevent this damage. Steel bracings can be configured in a variety of ways. This building is situated in seismically active zone V, and the ETABS programme has been used to analyse the models in accordance with IS 1893: 2016 criteria. The primary factors taken into consideration are lateral displacement, floor drift, base shear, and other seismic analyses of building attributes. These braces experience strain and compression.  The bracing system lessens the deformation of RC multi-story structures and boosts their stiffness and strength.