Design of wood-concrete composite beams under deck bridge – Theoretical developments and construction examples
Auteur(s): |
Fabien Renaudin
(Head of Bridges Division, Cerema Est, Metz, France)
Philippe Jandin (Project Director, Cerema ITM, Sourdun, France) |
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Médium: | papier de conférence |
Langue(s): | anglais |
Conférence: | 3rd International Conference on Timber Bridges 2017 (ICBT 2017), 26-29 June, 2017, Skellefteå, Sweden |
Abstrait: | Long ago forgotten, wood must find again all its place in the field of construction, especially in bridges. In France, a design guide is being drafting to propose a design of road bridge associating wood and concrete in a composite behaviour, via a mechanical connection. It also constitutes an implementation guide of Eurocode 5 for the justification of the wood sections and the wood/concrete connection. Composite behaviour offers the characteristic to be assured by a connection that, with usually technologies employed, authorizes a relative displacement of materials at their interface. This behaviour is rather atypical in civil engineering structures and it appeared useful to formalize the laws of behaviour that describe this kind of composite beam. Analytical and truss-girder models are made to determine internal efforts in materials, according to the rigidity of connection. At least, three recent constructions inspired by the studies of the working group are described. |
Mots-clé: |
béton pont modèle analytique exemples bois
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