Shape Optimization of High-Rise Buildings
Authors: Isis Jimenez, Uriel Sarabia
Faculty Supervisor: Zhaoshuo Jiang
Department: Engineering
The development of new construction techniques, high-strength concrete, and higher-grade steel has led to a new generation of tall structures that are flexible, slender and light in weight, and low in damping. These types of structures are sensitive to dynamic wind loads, specifically along-wind (drag) and across-wind (lift) loads, which ultimately affect the serviceability and occupant comfort. Aerodynamic modifications to the shape and geometry of buildings are a method to ensure functional performance and control the wind-induced motion of tall structures. We used a wind tunnel to test various aerodynamic modifications to the shape of buildings like the rounding of corners, corner cuts, through openings, single and multi-parameter recessions, tapering, and setbacking to reduce the vibration response of tall flexible structures.