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Abstract:	Für die statische Bemessung neuer Stadionüberdachungen sind Windlasten oftmals die bemessungsrelevanten Einwirkungen. Es entspricht dem Stand der Technik, die Bemessungswindlasten für Stadiondächer in einem Windkanalversuch zu ermitteln. In diesem Beitrag wird beschrieben, wie solche Untersuchungen durchgeführt werden. Insbesondere wird aufgezeigt, wie sehr sich der Modellbau, die Messungen im Windkanal, die Auswertung der Messdaten und die Aufbereitung der Windlasten im Laufe der Jahre weiterentwickelt haben. Unterschiedliche Bemessungsaspekte werden angesprochen. Anhand dieser Weiterentwicklungen wird verdeutlicht, warum im Hinblick auf Windlastuntersuchungen für Stadiondächer numerische Strömungsberechnungen (CFD-Berechnungen) nicht in der Lage sind, dem heutigen Stand der Technik entsprechend durchgeführte Windkanaltests zu ersetzen. Determination of wind loads on stadium roofs by means of wind tunnel tests. Wind loads often are very important with regard to the design of new stadium roofs. It is state of the art, to determine the design wind loads for stadium roofs by means of appropriate wind tunnel tests. In this contribution it is described, how such wind tunnel studies are to be done. In particular new developments in model construction, methodology of wind pressure measurements in the wind tunnel, data analysis and documentation of design wind loads are summarized. Different design aspects are summarized. Finally, by consideration of these new developments in wind tunnel testing it is described, why numerical flow simulations (cfd = computational fluid dynamics) are not appropriate to determine design wind loads for stadium roofs adequately.
Source:	Stahlbau 81 (2012), No. 6
Page/s:	481-485
Language of Publication:	German

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