Die ermittlung von bemessungswindlasten von gebäuden im windkanal [Determination of design wind loads on buildings by wind tunnel tests]
article
Wind load on buildings can be calculated by means of standards. As it is e. g. not possible for all conceivable shapes and dimensions of buildings to be included in standards, it was necessary to make simplifications. The concept of a non-standard building has to be converted schematically into a standard shape. This generally results in a conservative determination of the design wind load. The effect of a complex urban environment or the proximity of a high-rise building cannot be included in the calculations on the basis of standards, either. In certain cases the wind load can be higher than is provided for in the standard, e. g. if two buildings stand very close to each other. Adherence to the standard could then result in structural unsafety. Wind tunnel tests are used to instantly determine the interactions so that they can be considered in the design. This article describes how such wind tunnel tests are to be made and how the results can be processed into design wind load values. A few examples given here demonstrate that wind tunnel tests are very suitable to determine the design wind load on non-standard buildings or on buildings that require a high degree of schematization before standards can be applied. By doing so, the calculation as well as the structural design of buildings can be optimized.
TNO Identifier
235940
ISSN
09328351
Source
Bautechnik, 78(1), pp. 9-17.
Pages
9-17
Files
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