Pushover analysis between different shapes of BRB for seismic analysis in RCC structure with IS 1893:2016

Abstract

When designing new structures as well as modifying and renovating existing ones, energy dissipation methods like buckling restraining braces (BRB) are routinely utilized. Because India is an earthquake-prone nation, these techniques are becoming increasingly widely understood and used regularly to lessen the effects of seismic events. This study's main goal was to assess how various buckling restraint brace designs might affect a G+14-storey RCC building structure. The comparison is carried out using ETABS after a pushover analysis has been completed. In order to extract information from the pushover curve, the response spectrum source for zone IV, soil type II, was defined in IS 1893:2016. Utilizing total seismic weight, lateral stiffness, yield force, goal displacement, base shear, and capacity or pushover curve, the performance of various shape buckling restrained braces was studied. It was discovered that the diagonal BRB performs better than the other bracing systems in an RCC construction compared to cross shape, v shape, and inverted v shapes.