Investigation of Typhoon Wind Speed Recordson Top of a Group of Buildings

저자(들)

  • Min Liu School of Civil Engineering, Chongqing University, Chongqing, China 저자
  • Yi Hui School of Civil Engineering, Chongqing University, Chongqing, China 저자
  • Zhengnong Li College of Civil Engineering, Hunan University, Hunan, China 저자
  • Ding Yuan School of Civil Engineering, Chongqing University, Chongqing, China 저자

키워드:

High-rise building, Field measurement, Typhoon, Wind characteristics, Cross correlation

초록

This paper presents the analysis of wind speeds data measured on top of three neighboring high-rise buildings close to a beach in Xiamen city, China, during Typhoon "Usagi" 2013. Wind tunnel simulation was carried out to validate the field measurement results. Turbulence intensity, turbulence integral scale, power spectrum and cross correlation of recorded wind speed were studied in details. The low frequency trend component of the typhoon speed was also discussed. The field measurement results show turbulence intensity has strong dependence to the wind speed, upwind terrain and even the relative location to the Typhoon center. The low frequency fluctuation could severely affect the characteristics of wind. Cross correlation of the measured wind speeds on different buildings also showed some dependence on the upwind terrain roughness. After typhoon made landfall, the spatial correlation of wind speeds became weak with the coherence attenuating quickly in frequency domain.

다운로드

출판됨

2019-12-31

권호

권. 8 호. 4 (2019)

세션

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