Frontiers of Architecture and Civil Engineering in China

, Volume 3, Issue 3, pp 249–254

Wind-induced vibration control of Hefei TV tower with fluid viscous damper

Authors

    • College of Civil EngineeringSoutheast University
  • Aiqun Li
    • College of Civil EngineeringSoutheast University
  • Jianping He
    • Design InstituteState Administration of Radio Film & TV
  • Jianlei Wang
    • Design InstituteState Administration of Radio Film & TV
Research Article

DOI: 10.1007/s11709-009-0038-x

Cite this article as:
Zhang, Z., Li, A., He, J. et al. Front. Archit. Civ. Eng. China (2009) 3: 249. doi:10.1007/s11709-009-0038-x

Abstract

The Hefei TV tower is taken as an analytical case to examine the control method with a fluid viscous damper under wind load fluctuation. Firstly, according to the random vibration theory, the effect of fluctuating wind on the tower can be modeled as a 19-dimensional correlated random process, and the wind-induced vibration analysis of the tower subjected to dynamic wind load was further obtained. On the basis of the others’ works, a bimodel dynamic model is proposed. Finally, a dynamic model is proposed to study the wind-induced vibration control analysis using viscous fluid dampers, and the optimal damping coefficient is obtained regarding the wind-induced response of the upper turret as optimization objectives. Analysis results show that the maximum peak response of the tower under dynamic wind load is far beyond the allowable range of the code. The wind-induced responses and the wind vibration input energy of the tower are decreased greatly by using a fluid viscous damper, and the peak acceleration responses of the upper turret is reduced by 43.4%.

Keywords

high-rise structurewind-induced responsefluid viscous dampervibration control

Copyright information

© Higher Education Press and Springer-Verlag GmbH 2009