Database-Assisted Design, Standardization, and Wind Direction Effects
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Volume 127, Issue 8
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.
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Published In
Journal of Structural Engineering
Volume 127 • Issue 8 • August 2001
Pages: 855 - 860
History
Received: Feb 24, 2000
Published online: Aug 1, 2001
Published in print: Aug 2001
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