Structural Design of High-Rise Buildings: Finite Element Modelling, Wind Response, and Stability Analysis

High-rise buildings are increasingly subjected to complex static and dynamic loading conditions, particularly wind-induced effects and stability-related challenges. The present manuscript investigates the structural behaviour of high-rise buildings using finite element modelling techniques and analytical approaches. Various modelling strategies are evaluated with respect to reaction forces, overturning moments, horizontal and vertical deflections, resonance frequencies, critical buckling loads, and acceleration responses. Analytical calculations based on Eurocode, SS-ISO standards, and empirical methods are compared with three-dimensional finite element analyses performed using Midas Gen software. The study highlights that a single numerical model is often insufficient to capture both global and local structural behaviour accurately. Different modelling approaches are necessary depending on whether the analysis concerns vertical loads, horizontal loads, dynamic response, or detailed force transfer mechanisms. The research further examines wind-induced along-wind and across-wind responses, occupant comfort criteria, and the influence of discretisation and element selection in finite element analysis. Results indicate that finite element modelling must be combined with engineering judgement and analytical verification to ensure reliable structural assessment and safe design of tall buildings.