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Abstract:	In einem vorangegangenen Beitrag wurden verschiedene Brandszenarien mit Flüssigkeitslachenbränden von bis zu 28 t Benzin untersucht [1]. Es konnte gezeigt werden, dass diese Brände durch die ZTV-ING-Temperatur-Zeit-Kurve abgedeckt werden. Im Rahmen eines weiteren Forschungsvorhabens für die Bundesanstalt für Straßenwesen (BASt) wurden darauf aufbauend Brandszenarien untersucht, bei denen ausgehend von diesem Flüssigkeitslachenbrand infolge Leckage eines mit 28 t Benzin beladenen Tanklastzugs der Brand auf weitere im Tunnel befindliche Fahrzeuge übergreift, wobei sich in unmittelbarer Nähe zum Tanklastzug ein mit Holzpaletten beladener LKW befindet. Der vorliegende Beitrag gibt die wesentlichen Ergebnisse in Bezug auf das Tragverhalten und die Tunnelsicherheit der mittels numerischer Strömungssimulationen und Finite-Elemente-Berechnungen durchgeführten Untersuchungen wieder. Fires with fire spread in reinforced concrete road tunnels - temperature loads, temperature distribution and concrete spalling. Different fire scenarios with liquid laugh burns up to 28 tons of gasoline were investigated in a further article. It could be shown that these fires can be covered by the ZTV-ING temperature time curve. Within the framework of a further research project for the Federal Highway Research Institute (BASt), further fire scenarios were investigated, where the fire starts from this liquid laughter fire due to leakage of a tank truck loaded with 28 t gasoline. The fire spread on other vehicles in the tunnel and his effect is einvestigated, whereas a truck laden with wooden pallets is located immediate to the tanker. The present article reflects the significant results in terms of the structural behaviour and the tunnel safety of the investigations carried out by means of computational fluid simulations and finite element calculations.
Source:	Beton- und Stahlbetonbau 110 (2015), No. 5
Page/s:	340-348
Language of Publication:	German

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