Gust Speeds in Hurricanes.
Gust Speeds in Hurricanes.
(177 K)
Marshall, R. D.
American Society of Civil Engineers (ASCI). Structures
Congress XII. Volume 2. April 24-28, 1994, Atlanta,
GA, American Society of Civil Engineers, New York, NY,
Baker, N. C.; Goodno, B. J., Editor(s)(s), 1457-1462 pp,
1994.
Keywords:
hurricanes; wind velocity; gust factors; dynamic
pressure; data analysis; wind effects
Abstract:
Based on strip-chart records of wind speeds representing
11 recording stations and four hurricanes, it is
concluded that gust factors for hurricanes generally
exceed the gust factors proposed by Durst more than 30
years ago for well-developed extratropical storms. When
put in terms of dynamic pressure, these higher gust
factors suggest increases in qust loads of as much as 20
percent. More data will be needed to establish the
probability distribution of hurricane gust factors and
to discern any significant differences for locations
within and outside of the hurricane eyewall.
Building and Fire Research Laboratory
National Institute of Standards and Technology
Gaithersburg, MD 20899