Seismic Performance Evaluation of Reinforced Concrete Buildings: A Study on Base Shear, Displacement, and Column Capacity Ratios

Abstract

The findings of this research are a detailed assessment of the seismic response of RC buildings with transfer beams with regard to parameters including base shear force, displacement, inter-storey drifts and column capacity ratios. Based on numerical simulations and Linear Time History Analysis (LTHA), the work explores the response of RC buildings to seismic loads, and considers variability in material properties and structural layouts. Different structures of different heights of three types namely sixty meters, hundred meters and one hundred and fifty meters are considered. It also examines the effect of podium layout patterns with respect to lateral force distribution and its consequences on the (D/C) and PMM interaction of columns. Value of maximum displacements and inter-storey drift ratios are also demonstrated to rise with building height especially in structures with transfer beams, while circular columns are seen to have higher PMM capacity ratios than square ones. The results highlighted by the paper should therefore draw the attention of designers/architects and structural engineers to these parameters in the design /retrofitting of high rise building structures for improved structural performance under seismic actions.