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Wind Engineering: A Handbook for Structural Engineers by Henry Liu - University of Missouri—Columbia

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3Wind Characteristics

Since ordinary structures are placed on the ground, for structural design purpose it is important to deal only with surface winds, that is, winds near the ground surface. The ensuing discussion of wind characteristics will focus on surface winds. Unless otherwise specified, we shall consider surface winds as the winds at 10-m height above ground.

3.1 Variation of Wind Velocity With Height and Roughness

Variation of Wind Speed with Height

An important characteristic of wind is the variation of speed with height. The local mean velocity, hereafter referred to simply as wind speed, is zero at the surface, and it increases with height above ground in a layer within approximately 1 kilometer from ground called the atmospheric ...

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