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Wind‐induced excitation control of a tall building with tuned mass dampers
Author(s) -
Kim YoungMoon,
You KiPyo,
Kim HanYoung
Publication year - 2008
Publication title -
the structural design of tall and special buildings
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.895
H-Index - 43
eISSN - 1541-7808
pISSN - 1541-7794
DOI - 10.1002/tal.372
Subject(s) - tuned mass damper , aeroelasticity , structural engineering , parametric statistics , wind tunnel , damper , damping ratio , excitation , building model , engineering , aerodynamics , computer science , physics , simulation , vibration , acoustics , aerospace engineering , mathematics , statistics , electrical engineering
To investigate the effectiveness of a tuned mass damper (TMD) in suppressing wind‐induced excitation motion of a tall building, aeroelastic wind tunnel tests and theoretical analyses were conducted. A 1:500 scaled model of an aeroelastic tall building was built, and TMD models of mass ratios of 1% and 2%, respectively, were designed and tested with the building model. This study investigates the contribution of the inherent structural damping of the building model to the effectiveness of the TMD. Spectral analyses were conducted to verify the test results and to perform a parametric study. According to the experimental and analytical investigation, the effectiveness of the TMD increased when the inherent structural damping was decreased in response to both along‐wind and the cross‐wind directions. The parametric study revealed that a certain TMD damping ratio can maximize the effectiveness of the TMD. Copyright © 2007 John Wiley & Sons, Ltd.