Enhancing Structural Resilience: A Comparative Study of G+35 Storey Irregular Buildings with Shear Walls and Outrigger Braced Systems

Abstract

Abstract: The study at hand focuses on the structural performance of irregular buildings subjected to lateral loads, with a specific emphasis on node displacement and peak storey shear forces. Irregularities in building structures, stemming from variations inmass distribution, stiffness, or geometry, pose unique challenges that demand specialized engineering solutions. The primary objective of this study is to analyze and compare the response of three different structural systems across multiple storeys: an Irregular Building alone, an Irregular Building with Shear Wall, and an Irregular Building with Outrigger Braced System. Understanding how these structural systems behave under lateral forces such as wind or seismic events is crucial for ensuring the safety, stability, and resilience of buildings. Node displacement, representing the movement of critical points within the structure, and peak storey shear forces, indicating the intensity of lateral forces at specific levels, are essential performance metrics. By evaluating these metrics across various storeys, we aim to discern patterns, trends, and the relative effectiveness of each structural system. The incorporation of shear walls and outrigger braced systems represents common strategies employed by engineers to enhance the seismic and wind resistance of buildings. However, the specific impact of these systems on node displacement and peak storey shear forces in irregular buildings requires detailed investigation.