REVISÃO SISTEMÁTICA DA ANÁLISE DA INFLUÊNCIA DAS PAREDES NA INSTABILIDADE EM EDIFÍCIOS COM PÓRTICOS ASSIMÉTRICOS

Abstract

This systematic review investigates the influence of structural walls on the global stability of reinforced concrete buildings with asymmetric frames subjected to lateral static loads. Eleven studies were analyzed following a rigorous methodological protocol based on the PRISMA framework. The results show that structural walls absorb over 75% of the shear forces in lower stories, acting as key elements for enhancing lateral stiffness. Wall positioning was found to be decisive: central-core configurations exhibited higher reliability indices for serviceability (β = 6.98–7.67), while peripheral arrangements favored ultimate resistance. Beam–wall connection eccentricity proved critical, increasing lateral displacements by up to 23.72% for 0.50 m offsets. Wall thicknesses between 200 mm and 300 mm showed optimal performance, with diminishing stiffness gains beyond this range. The study concludes that the proper consideration of wall positioning, dimensioning, and detailing is essential to ensure global stability in buildings with asymmetric frames. Keywords: Structural walls; global stability; asymmetric frames; systematic review; lateral loads.