Mega bracing system with RC multistory based on plate-frame method by sap2000

Abstract

This study investigates the optimal arrangement of steel braces for a 15-story reinforced concrete building. The analysis is based on a 0.1 mm plate model at the exterior face of the building, which is subjected to nonlinear time history analysis of Elcentro ground motion earthquake. The study focuses on the internal forces path induced by seismic loads and aims to identify the most preferable results for different configurations of steel bracing using sap2000 software. By selecting the moment that led to the maximum internal drift, the study determined the maximum load concentrations. The results indicate that model 4 and 6 produced the optimal results, with a significant increase of 32% and 37% in base shear, as well as a notable improvement of 60.64% and 60.5% in roof displacement, respectively.