SEISMIC ANALYSIS OF MULTI-STORY REINFORCED CONCRETE BUILDINGS WITH VARIOUS BRACING SYSTEMS
Keywords:
Seismology, Seismic Design, Bracing Systems, ETABS, Story Drift, Base Shear, Response Spectrum AnalysisAbstract
In modern urbanization, the demand for high-rise structures is increasing, necessitating advanced seismic design to ensure safety. This study evaluates the seismic performance of a G+17 story reinforced concrete building using various bracing configurations—X, V, Inverted V, and Eccentric Forward—under different seismic zones (Zone II and Zone V). The analysis is performed using ETABS 2016 software employing Response Spectrum Analysis (RSA) and Equivalent Static Method (ESM). Results indicate that the incorporation of bracing significantly enhances the lateral stiffness and reduces story drift and displacement. Specifically, X-bracing was found to be the most effective, reducing lateral story movement by approximately 40% compared to a bare frame structure. The study concludes that braced systems provide superior resistance against horizontal seismic forces, with the X-brace system demonstrating the highest efficiency in minimizing seismic responses.
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