Hermite Extreme Value Estimation of Non-Gaussian Wind Load Process on a Long-Span Roof Structure
Publication: Journal of Structural Engineering
Volume 140, Issue 9
Abstract
This paper presents a combined study of wind tunnel experiment and numerical simulation of the wind-induced pressures on the long-span roof of the Hangzhou East Railway Station Building. Wind tunnel tests were performed on a -scale rigid model of the station building. Based on the measured pressure data, the third and fourth statistical moments of the pressure processes were evaluated to quantify the non-Gaussian nature of the wind-induced pressures on the station roof. Using the recently reported Hermite moment model, an analytical form of the non-Gaussian peak factor was proposed for a given hardening load process and was verified using numerical integration. The currently available simulation algorithm was revised to generate sample functions of skewed hardening load processes. The simulated pressure data samples provide a basis for the direct statistical analysis of extreme peaks. The peak factors for non-Gaussian wind load effects were estimated by employing various state-of-the-art methods and compared to the mean extreme values of wind pressure data from simulations.
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Acknowledgments
The work described in this paper was partially supported by the National Natural Science Foundation of China (Project No. 51008275), the Ministry of Transport of PR China (Project No. 2011318223170), the Scientific Plan Project of Zhejiang Province of China (Project No. 2012C21059), and the Fundamental Research Funds for the Central Universities of China (Project No. 2012QNA4013).
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Published In
Journal of Structural Engineering
Volume 140 • Issue 9 • September 2014
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Mar 29, 2013
Accepted: Oct 2, 2013
Published online: May 6, 2014
Published in print: Sep 1, 2014
Discussion open until: Oct 6, 2014
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