A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Mitigation of wind-induced accelerations using Tuned Liquid Column Dampers: Experimental and numerical studies
Abstract During the early design stages of a relatively slender 42-storey high-end residential building located in the Middle East, a series of High Frequency Force Balance wind tunnel tests highlighted that the highest occupied floors could experience wind-induced motion which – depending on the inherent damping of the finished structure – had the potential to exceed standard industry occupant comfort criteria. In order to mitigate these excessive vibrations, a Tuned Liquid Column Damper solution was proposed for this building. The performance prediction and validation of the behaviour of such device involved: an initial campaign of full scale measurements to validate frequencies and inherent damping of the structure near completion; a series of shake table tests employing a 1:20 scale physical model; and a final full scale extrapolation study using Computational Fluid Dynamics. The damper study, which this technical paper is focused on, was part of a wider range of wind engineering consultancy services which included: wind climate study; pedestrian and terrace / balcony level wind microclimate study; overall wind loading study and façade pressure study.
Highlights The vibrations control of a residential tower is achieved through the implementation of TLD technology. A multi-disciplinary numerical and experimental approach is presented. Scale effects between model and full scale numerical models are investigated.
Mitigation of wind-induced accelerations using Tuned Liquid Column Dampers: Experimental and numerical studies
Abstract During the early design stages of a relatively slender 42-storey high-end residential building located in the Middle East, a series of High Frequency Force Balance wind tunnel tests highlighted that the highest occupied floors could experience wind-induced motion which – depending on the inherent damping of the finished structure – had the potential to exceed standard industry occupant comfort criteria. In order to mitigate these excessive vibrations, a Tuned Liquid Column Damper solution was proposed for this building. The performance prediction and validation of the behaviour of such device involved: an initial campaign of full scale measurements to validate frequencies and inherent damping of the structure near completion; a series of shake table tests employing a 1:20 scale physical model; and a final full scale extrapolation study using Computational Fluid Dynamics. The damper study, which this technical paper is focused on, was part of a wider range of wind engineering consultancy services which included: wind climate study; pedestrian and terrace / balcony level wind microclimate study; overall wind loading study and façade pressure study.
Highlights The vibrations control of a residential tower is achieved through the implementation of TLD technology. A multi-disciplinary numerical and experimental approach is presented. Scale effects between model and full scale numerical models are investigated.
Mitigation of wind-induced accelerations using Tuned Liquid Column Dampers: Experimental and numerical studies
Cammelli, Stefano (author) / Li, Yin Fai (author) / Mijorski, Sergey (author)
Journal of Wind Engineering and Industrial Aerodynamics ; 155 ; 174-181
2016-06-02
8 pages
Article (Journal)
Electronic Resource
English
Experimental Parametric Studies on Tuned Liquid Column Dampers
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Semiactive Tuned Liquid Column Dampers: Experimental Study
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