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Wind and Structures Volume 25, Number 4, October 2017 , pages 361-379 DOI: https://doi.org/10.12989/was.2017.25.4.361 |
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Aeroelastic model test of a 610 m-high TV tower with complex shape and structure |
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Quanshun Ding and Ledong Zhu
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| Abstract | ||
| In view of the importance of the wind-structure interaction for tall and slender structures, an aeroelastic model test of the 610m-high TV tower with a complex and unique structural configuration and appearance carried out successfully. The assembled aeroelastic model of the TV tower with complex shape and structure was designed and made to ensure the similarities of the major natural frequencies and the corresponding mode shapes. The simulation of the atmospheric boundary layer with higher turbulent intensity is presented. Since the displacement and acceleration responses at several measurement sections were directly measured in the wind tunnel test, a multi-mode approach was presented to indirectly estimate the displacement and acceleration responses at arbitrary structural floors based on the measured ones. It can be seen that it is remarkable for the displacement and acceleration responses of the TV tower in the two horizontal directions under wind loads and is small for the dynamic response of the torsional displacement and acceleration. | ||
| Key Words | ||
| TV tower; wind tunnel test; aeroelastic model; simulation of atmospheric boundary layer; displacement response; acceleration response | ||
| Address | ||
| Quanshun Ding and Ledong Zhu: State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China; Department of Bridge Engineering, College of Civil Engineering, Tongji University, Shanghai 200092, China | ||