Title

Field Measurements of Wind Pressure on an Open Roof during Typhoons HaiKui and SuLi

Abstract

Full-scale measurements of wind action on the open roof structure of the WuXi grand theater, which is composed of eight large-span free-form leaf-shaped space trusses with the largest span of 76.79 m, were conducted during the passage of Typhoons HaiKui and SuLi. The wind pressure field data were continuously and simultaneously monitored using a wind pressure monitoring system installed on the roof structure during the typhoons. A detailed analysis of the field data was performed to investigate the characteristics of the fluctuating wind pressure on the open roof, such as the wind pressure spectrum, spatial correlation coefficients, peak wind pressures and non-Gaussian wind pressure characteristics, under typhoon conditions. Three classical methods were used to calculate the peak factors of the wind pressure on the open roof, and the suggested design method and peak factors were given. The non-Gaussianity of the wind pressure was discussed in terms of the third and fourth statistical moments of the measured wind pressure, and the corresponding indication of the non-Gaussianity on the open roof was proposed. The result shows that there were large pulses in the time-histories of the measured wind pressure on Roof A2 in the field. The spatial correlation of the wind pressures on roof A2 between the upper surface and lower surface is very weak.When the skewness is larger than 0.3 and the kurtosis is larger than 3.7, the wind pressure time series on roof A2 can be taken as a non-Gaussian distribution, and the other series can be taken as a Gaussian distribution.

Department(s)

Civil, Architectural and Environmental Engineering

Comments

This research was financially supported by the Natural Science Foundation of China under grant numbers 51278117, by the Program for New Century Excellent Talents in University under grant number NCET-13-0120, by the Peak project of Six talents in Jiangsu Province under grant number 2013-JZ-009, by the Colleges and Universities in Jiangsu Province Plans to Graduate Research and Innovation KYLX15_0089 and KYLX16_0254, by the Fundamental Research Funds for the Central Universities, and by a Project Funded by the Priority Academic Program Development of the Jiangsu Higher Education Institutions.

Keywords and Phrases

Full-scale measurements; Large-span roof; Peak wind pressure; Typhoon; Wind pressure spectrum

International Standard Serial Number (ISSN)

1226-6116

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2018 Techno Press, All rights reserved.

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