Measurement of Non-Stationary Characteristics of a Landfall Typhoon at the Jiangyin Bridge Site
AbstractThe wind-sensitive long-span suspension bridge is a vital element in land transportation. Understanding the wind characteristics at the bridge site is thus of great significance to the wind- resistant analysis of such a flexible structure. In this study, a strong wind event from a landfall typhoon called Soudelor recorded at the Jiangyin Bridge site with the anemometer is taken as the research object. As inherent time-varying trends are frequently captured in typhoon events, the wind characteristics of Soudelor are analyzed in a non-stationary perspective. The time-varying mean is first extracted with the wavelet-based self-adaptive method. Then, the non-stationary turbulent wind characteristics, e.g.; turbulence intensity, gust factor, turbulence integral scale, and power spectral density, are investigated and compared with the results from the stationary analysis. The comparison highlights the importance of non-stationary considerations of typhoon events, and a transition from stationarity to non-stationarity for the analysis of wind effects. The analytical results could help enrich the database of non-stationary wind characteristics, and are expected to provide references for the wind-resistant analysis of engineering structures in similar areas. View Full-Text
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He, X.; Qin, H.; Tao, T.; Liu, W.; Wang, H. Measurement of Non-Stationary Characteristics of a Landfall Typhoon at the Jiangyin Bridge Site. Sensors 2017, 17, 2186.
He X, Qin H, Tao T, Liu W, Wang H. Measurement of Non-Stationary Characteristics of a Landfall Typhoon at the Jiangyin Bridge Site. Sensors. 2017; 17(10):2186.Chicago/Turabian Style
He, Xuhui; Qin, Hongxi; Tao, Tianyou; Liu, Wenshuo; Wang, Hao. 2017. "Measurement of Non-Stationary Characteristics of a Landfall Typhoon at the Jiangyin Bridge Site." Sensors 17, no. 10: 2186.
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