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Author(s):	Kuhlmann, Ulrike; Maier, Philippa; Friedrich, Heinz; Kaschner, Rolf; Mensinger, Martin; Pfaffinger, Marjolaine; Sedlbauer, Klaus; Fischer, Matthias; Lenz, Katrin; Beck, Tabea; Ummenhofer, Thomas; Zinke, Tim
Title:
Abstract:	Die Berücksichtigung aller Einflüsse im gesamten Lebenszyklus einer Brücke bildet die Grundlage für Nachhaltigkeitsanalysen. Hierfür müssen Instandhaltungsszenarien auf Basis von Erneuerungszyklen für die einzelnen Bauteilgruppen - das sind Lager, Fahrbahnübergänge, Kappen etc. - definiert werden. Dieser Beitrag leitet drei Strategien für den deutschen Raum her, die für die Nachhaltigkeitsbewertung von Brückenbauwerken angewendet werden können. Die Auswertungen der in Deutschland vorhandenen empirischen Datenbasis bildet hierfür die Grundlage. Zwei Strategien werden abschließend an einer Referenzbrücke als Autobahnüberführung in Integralbauweise zur Anwendung gebracht und mit Hilfe einer Ökobilanzierung, als Teil einer Nachhaltigkeitsanalyse, aus ökologischer Sicht bewertet. Maintenance strategies as a basis for the holistic assessment of steel and composite bridges according to criteria of sustainability. The consideration of all impacts during the life cycle of a bridge is essential for sustainability analyses. For this purpose maintenance scenarios based on of renewal cycles for all components of a bridge - i. e. bearings, expansion joints, caps, etc. - have to be defined. In this article three maintenance strategies for Germany are derived from an empirical database. This database is analyzed to develop input parameters which can be used for sustainability analyses. Concluding, two strategies are applied to a reference bridge as integral crossing of a motorway and evaluated by using the method of life cycle assessment, as one part of sustainability analyses.
Source:	Stahlbau 82 (2013), No. 1
Page/s:	3-10
Language of Publication:	German

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