Analysis of Boundary Layer Wind Field Statistical Characteristics and Reference Wind Pressure in Wenzhou District

Abstract:

Based on large amount of meteorological wind field records observed in Wenzhou district, this paper analyzed the annual maximum wind speed (maximum 10 minute mean wind speed), annual extreme wind speed (maximum 3 seconds mean wind speed), reference wind pressure and wind field characteristics of typhoon in Wenzhou. The results shows that the annual maximum wind speed have a decreased trend on the whole in different areas of Wenzhou, and the trend in coastal area is more obvious than that in inland areas; the annual maximum wind speed in different areas of Wenzhou is unsteady and the typhoons have great effect on it; the value of reference wind pressure in Dongtou is greater than the value given by the design load code of China (GB50009-2001, 2002), but the values of other areas are less than the value of Code. Based on the wind field of three typhoon records, some significant results about the variation and routine characteristics of typhoon are also discussed.

• Periodical: Advanced Materials Research (Volumes 368-373)
• Pages: 1424-1430
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.368-373.1424
• Online since: October 2011
• Authors: Jian Jia Wu, Wen Hai Shi
• Keywords: Extreme Wind Speed, Maximum Wind Speed, Reference Wind Pressure, Typhoon, Wind Field

References

[1] Wenhai Shi, Zhengnong Li, Chuanxiong Zhang. Field measurements of strong wind characteristics near ground in Wenzhou district. Journal of Building Structures, Vol. 31, No. 10 (2010), pp.34-40. (in Chinese)

[2] http://www.wztf121.com

[3] GB 50009-2001 Load Code for the design of building structures[S].