Database-Assisted Design and Wind Directionality Effects
A Rigato, P C. Chang, Emil Simiu
We 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. We apply the methodology to typical low-rise industrial steel frame buildings with a rectangular shape in plan, located in hurricane-prone areas. We compare our results 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 understimation 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 more economical design for buildings with both known and unknown orientation.
Proceedings Fourth International Colloquium of Bluff Body Aerodynamics
90 No. 11
September 11-14, 2000
Bochum, 1, GE
International Colloquium of Bluff Body Aerodynamics
, Chang, P.
and Simiu, E.
Database-Assisted Design and Wind Directionality Effects, Proceedings Fourth International Colloquium of Bluff Body Aerodynamics, Bochum, 1, GE, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=860241
(Accessed December 9, 2023)