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Abstract:	Nach EN 1993-2 kann der Ermüdungsnachweis von Eisenbahnbrücken auf der Grundlage der Schnittgrößen infolge des Lastmodells 71 geführt werden. Dazu müssen diese mit einem dynamischen Beiwert &PHgr;2 und einem Schadensäquivalenzfaktor &lgr; multipliziert werden. In der vorliegenden Arbeit werden für drei Standard-Verkehrsmischungen Spannweitenbeiwerte &lgr;1 für vierseitig, an den Längsrändern drehelastisch gelagerte Platten von eingleisigen Brücken im Stützweitenbereich zwischen 10,0 und 27,5 m angegeben. Aus den Spannweitenbeiwerten &lgr;1 können unter Berücksichtigung des Verkehrsvolumens pro Jahr und der Nutzungsdauer die gesuchten Schadensäquivalenzfaktoren &lgr; ermittelt werden. Damage equivalence factors for deck slabs of steel railway bridges According to EN 1993-2, the fatigue verification of railway bridges can be based on internal forces due to the standard load model 71. These internal forces are to be multiplied by a dynamic coefficient &PHgr;2 and a damage equivalence factor &lgr;. In this paper, factors &lgr;1 allowing for the damage effect of traffic on quadrilaterally supported plates with torsionally flexible supports at the longitudinal edges as encountered in single-track railway-brides in a span range between 10.0 and 27.5 m are derived for three standard traffic situations. The required damage equivalence factors &lgr; are obtained from the factors &lgr;1, considering the annual traffic volume and the requested service life.
Source:	Stahlbau 92 (2023), No. 6
Page/s:	367-380
Language of Publication:	German

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