Reviewing of Seismic Analysis of Multi Story Building on Sloping Ground and Flat Ground by Using ETABS

Abstract

Using ETABS software and a variety of analytical techniques, this review paper investigates the seismic performance of high-rise structures with irregular shapes and vertical irregularities. The evaluated research examines regular and irregular models with vertical, plan, stiffness, and mass irregularities, as well as various configurations, such as H, O, and L-shaped structures. In accordance with IS: 1893-2016recommendations, linear static, linear dynamic, response spectrum, and time history studies are used to analyze buildings with 5, 10, and 15 stories that are located in various seismic zones and soil conditions. Important conclusions show that irregular structures draw greater seismic pressures, which causes stress concentrations and makes them more vulnerable. Soft story irregularities revealed considerable inter-story drift and damage, while H-shaped buildings performed better, particularly in lower-rise combinations. Research also emphasizes the impact of shear stresses, bending moments, and mass transfer, especially in O-shaped structures. Furthermore, it has been demonstrated that applying energy dissipation devices—like fluid viscous dampers—improves earthquake resilience. The review highlights the need of implementing advanced design solutions to prevent earthquake-induced damage and the need for dynamic analysis for irregular buildings to enable accurate performance assessment.