Wind-Tunnel Modeling for Structural Design

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Title: Wind-Tunnel Modeling for Structural Design

Author(s): Jack E. Cermack

Publication: Structural Journal

Volume: 86

Issue: 5

Appears on pages(s): 592-601

Keywords: bridges (structures); chimneys; models; structural analysis; structural design; towers; wind (meteorology); wind pressure; wind tunnels; Design

Date: 9/1/1989

Abstract:
Civil engineers, architects, and mechanical engineers rely upon data derived from wind-tunnel tests for design of buildings, bridges, towers, and chimneys as extensively as do aeronautical engineers for design of aircraft. Development of special boundary-layer wind tunnels that successfully simulate natural wind in the atmospheric boundary layer has made this possible. Long test-section wind tunnels used for this purpose are of the closed-circuit and open-circuit types. Four common types of small-scale models are used for tests to yield data for design and analysis: rigid (static) pressure, rigid low-frequency balance, rigid high-frequency balance, and aeroelastic. Data from these tests must be used with wind data obtained from a meteorological station near the construction site to achieve economical designs having specified risk of damage or unacceptable performance.