Study of the dynamic response of a CAARC building by the synthetic wind method and comparison with different approaches
Multidiscipline Modeling in Materials and Structures
ISSN: 1573-6105
Article publication date: 12 January 2022
Issue publication date: 4 March 2022
Abstract
Purpose
This paper analyzes the effect that is generated in the dynamic response of a Commonwealth Advisory Aeronautical Council building for different types of power spectra. This article also compares synthetic wind method (SWM) results with wind tunnel tests and other numerical approaches.
Design/methodology/approach
One of the main methodologies developed in Brazil, the SWM, is employed to determine the dynamic wind loads. The Davenport, Lumley and Panowski, Harris, von Karman and Kaimal model are used in SWM to generate the resonant harmonics. Lateral pressures are calculated by the wind speed deflection profile for 30, 35, 40 and 45 m/s. The structure is processed in Autodesk Robot Structural Analysis with numerical analysis in FEM by the Hilber–Hughes–Taylor method. To corroborate the synthetic wind with experimental results, displacement curves are developed for wind tunnel experimental results, Davenport method, Eurocode and NBR 6123, together with the SWM.
Findings
Results show that for 30 m/s, the lowest convergence of the power spectra models was presented and that the greatest difference found was below 10%. In addition, it was shown that Eurocode 1-4 can lead to oversizing, while NBR 6123 can lead to undersizing, compared with the experimental results. Finally, results by the Davenport method, wind tunnel test and synthetic wind showed good accuracy.
Originality/value
By carrying out this comparative analysis, this work presents an important contribution in the field of calculating the dynamic response of tall buildings. Studies with these comparisons to corroborate the SWM had not yet been carried out.
Keywords
Acknowledgements
The study was funded by Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) [Award number: Finance Code 001].
Citation
Mattias, L.W.A. and Paramo, C.A.M. (2022), "Study of the dynamic response of a CAARC building by the synthetic wind method and comparison with different approaches", Multidiscipline Modeling in Materials and Structures, Vol. 18 No. 1, pp. 142-152. https://doi.org/10.1108/MMMS-12-2021-0204
Publisher
:Emerald Publishing Limited
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