Database-Assisted Design and Wind Directionality Effects

Published

November 1, 2002

Author(s)

A Rigato, P C. Chang, Emil Simiu

Abstract

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 K_d=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 Title

Proceedings Fourth International Colloquium of Bluff Body Aerodynamics

Volume

90 No. 11

Conference Dates

September 11-14, 2000

Conference Location

Bochum, 1, GE

Conference Title

International Colloquium of Bluff Body Aerodynamics

Pub Type

Conferences

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Local Download

Keywords

aerodynamics, building codes, building technology, climatology, databases, directionality (wind), extreme winds, structural engineering, wind engineering

Citation

Rigato, A. , Chang, P. and Simiu, E. (2002), 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 October 10, 2024)