Quasi-steady across-wind aerodynamic damping of tall structures

Nguyen, CH; Long, D-S; Nguyen, DT

Abstract

The paper presents a generalization of existing analytical approaches to determine the across-wind aerodynamic damping of tall structures through the quasi-steady theory. The theory takes into account the nature of non-uniform wind, structural mode shapes and the variation of structural parameters. Numerical applications on a prototype high-rise building and a real sculptural tower point out that the common approach may be over simplified, giving rise to inappropriate predictions of the aerodynamic damping. The role of the structural mode shapes, usually being neglected for uniform structures, is then highlighted.

• Journal Article Type: Article
• Publication Date: Dec 1, 2019
• Deposit Date: Mar 25, 2022
• Journal: International Journal of High-Rise Buildings
• Print ISSN: 2234-7224
• Electronic ISSN: 2288-9930
• Volume: 8
• Issue: 4
• Pages: 275-281
• DOI: https://doi.org/10.21022/IJHRB.2019.8.4.275
• Publisher URL: https://doi.org/10.21022/IJHRB.2019.8.4.275
• Related Public URLs: http://ctbuh-korea.org/ijhrb/index.php
• Additional Information: Access Information : This article can be freely accessed using the link above.; Funders : Vietnam National Foundation for Science and Technology Development (NAFOSTED); Grant Number: 107.04-2017.321