Planetary Boundary Layer Modeling and Standard Provisions for Supertall Building Design

AbstractAccording to recent results of planetary boundary layer research relevant to the design of tall buildings subjected to large-scale synoptic storm winds, for elevations of up to at least 1 km, the longitudinal mean wind speeds are monotonically increasing with height. It is shown that, for th...

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Bibliographic Details
Published in:Journal of structural engineering (New York, N.Y.) N.Y.), 2017-08, Vol.143 (8)
Main Authors: Simiu, Emil, Heckert, N. Alan, Yeo, DongHun
Format: Article
Language:English
Subjects:
Buildings
Design engineering
Design standards
Elevation
Planetary boundary layer
Specifications
Tall buildings
Technical Note
Technical Notes
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Summary:AbstractAccording to recent results of planetary boundary layer research relevant to the design of tall buildings subjected to large-scale synoptic storm winds, for elevations of up to at least 1 km, the longitudinal mean wind speeds are monotonically increasing with height. It is shown that, for this reason, to avoid the possible unconservative design of supertall buildings significantly affected aerodynamically by neighboring buildings, an explicit derogation from the ASCE 7 standard specification of the gradient heights zg is necessary for buildings with heights greater than zg.
ISSN:0733-9445
1943-541X
DOI:10.1061/(ASCE)ST.1943-541X.0001804