Mass Irregularities in Conventional Slab Systems and Bubble Deck Slab Systems Comparison

Abstract

This study provides a thorough comparison of mass irregularities in conventional slab systems as well as bubble deck slab systems. The research includes eight unique models, which range from conventional slabs to flat slabs with and without drops, in both regular and irregular arrangements. To guarantee a thorough analysis, many structural characteristics such as building height, grid spacing, column and beam diameters, floor-to-floor height, and material qualities have been thoroughly determined. The goal of this research is to compare & contrast the performance of these slab systems in terms of key structural performance indicators such as max. storey displacement, storey drift, base shear, joint displacements, axial forces, bending moments, shear forces, time periods, and modal frequencies. The findings of each model are investigated using thorough finite element analysis performed using ETABS software under both non-irregular and mass irregular circumstances. These results are intended to give useful insights into how conventional and bubble deck slab systems react to dynamic pressures, allowing for a better understanding of their performance and resilience in actual engineering applications. The study's goal is to help structural engineers and architects make educated selections when deciding between these two high-rise slab systems.