Fluctuating Pressure Correlativity Analysis on the Cantilevered Roof of a Stadium

Abstract:

The time-history wind pressure data of the rigid model of an annular large-span cantilever roof of a stadium were obtained by the wind tunnel test. Considering the influence of the vortex shedding, the correlation coefficient and coherence function of along-wind and cross-wind points were analyzed to get the characteristics of the fluctuating pressure correlation of the stadium’s roof. The coherence function curves were fitted and the related coherence function was present. The results show that these characteristics of coherence are all coincide with the correlation coefficient. Compared to the Davenport and Nakamura coherence function models, the present coherence function has the same form with the Davenport and Nakamura's models, and a higher fitting accuracy for the cantilevered roof.

• Periodical: Applied Mechanics and Materials (Volumes 166-169)
• Pages: 296-303
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.166-169.296
• Online since: May 2012
• Authors: Hai Yong Zhang, Zhao Hui Chen, Feng Chen
• Keywords: Cantilevered Roof, Coherence Function, Correlation Coefficient, Fluctuating Wind Pressure, Vortex Shedding

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