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Author(s):	della Pietra, Regina; Oberwalder, Stefan; Tue, Nguyen Viet
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Abstract:	Da es sich bei Integralbrücken um Rahmentragwerke handelt, sind bei der Bemessung einige Besonderheiten zu beachten. Ein wesentlicher Aspekt ist die Beanspruchung infolge Temperatur- und Erddrucklasten sowie deren Interaktion in Abhängigkeit von der Tragwerks- und der Gründungssteifigkeit, welche in diesem Beitrag untersucht wird. Aufbauend auf diesen Erkenntnissen wird die Auswirkung von Weicheinlagen hinter der Widerlagerwand bzw. im Pfahlkopfbereich im Fall von Tiefgründungen auf die Beanspruchung im Tragwerk beurteilt. Als letzter Punkt wird der Übergang zwischen Brückentragwerk und Straße betrachtet und dessen besondere Anforderungen im integralen Brückenbau aufgezeigt. Key aspects for the design of integral bridges Since integral bridges are frame structures, special characteristics must be considered in their design. A key aspect are the resulting stresses due to temperature and earth-pressure loads as well as their interaction depending on the stiffness of the structure and the foundation, which will be investigated in this paper. Based on the resulting conclusion the effect of soft layers behind the abutment-wall or in area of the pile head in case of deep foundations on the structure will be assessed. Finally, the transition zone between the bridge structure and the adjacent road will be examined and the special requirements for integral bridges will be demonstrated.
Source:	Beton- und Stahlbetonbau 114 (2019), No. 9
Page/s:	683-691
Language of Publication:	German

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