- Author
-
Rigato, A.
|
Chang, P.
|
Simiu, E.
- Title
- Database-Assisted Design, Standardization, and Wind Direction Effects.
- Coporate
- Maryland Univ., College Park
National Institute of Standards and Technology, Gaithersburg, MD
- Journal
-
Journal of Structural Engineering,
Vol. 127,
No. 8,
853-860,
August 2001
- Keywords
-
wind direction
|
wind effects
|
databases
|
standardization
|
extreme values
|
meteorology
|
structural engineering
- Abstract
- The writers present a simple methodology, developed for use in design assisted by electronic aerodynamic and climatological databases (for short, database-assisted design), that allows a realistic assessment of wind directionality effects. The methodology is applied to typical low-rise industrial steel frame buildings with a rectangular shape in plan, located in hurricane-prone areas, and results are compared with results obtained by the procedure specified in the ASCE 7-98 Standard, which, for buildings, consists of applying a blanket directionality reduction factor Kd = 0.85 to wind effects obtained by disregarding directionality. The results show that, for significant numbers of buildings in hurricane-prone areas, the use of the ASCE procedure can result in the underestimation of wind effects corresponding to strength design. They also show that database-assisted design for wind loads offers the potential for significantly more risk-consistent, safer, and economical design for buildings with both known and unknown orientation.