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J4  2012, Vol. 46 Issue (4): 691-697    DOI: 10.3785/j.issn.1008-973X.2012.04.017
Peak factor of non-Gaussian pressure process on complex
super-tall building
LIN Wei1,2, LOU Wen-juan1, SHENTU Tuan-bing3, HUANG Ming-feng1
1. Institute of Structural Engineering, Zhejiang University, Hangzhou 310058, China;2. The Architectural
Design and Research Institute of Zhejiang University, Hangzhou 310027, China; 3. Design Institute of
Landscape and Architecture China National Academy of Fine Art, Hangzhou 310006, China
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Peak factors of non-Gaussian pressure process was investigated by taking a complex super-tall building with a boot-like shape for example in order to evaluate the design pressure coefficients on building surface more properly. The third and the fourth order statistical moments of wind pressure coefficients were analyzed based on the wind tunnel test. The non-Gaussian characteristics of wind-induced pressures on the complex building were systematically analyzed. The traditional peak factor method based on a zero-crossing rate, the improved peak factor method, the Sadek-Simiu method and the improved Gumbel method were employed to estimate the peak factors of wind-induced pressures. A new skewness-parameter non-Gaussian peak factor method was developed based on the improved peak factor method in order to overcome the shortcomings of the improved peak factor method. The applicability of various methods was discussed and compared to each other. Results show that the improved peak factor method is not applicable for some pressure processes with kurtosis smaller than three. Results of the proposed method accorded well with that of the Sadek-Simiu method.

Published: 17 May 2012
CLC:  TU 411  
  TU 472.5  
Cite this article:

LIN Wei, LOU Wen-juan, SHENTU Tuan-bing, HUANG Ming-feng. Peak factor of non-Gaussian pressure process on complex
super-tall building. J4, 2012, 46(4): 691-697.

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