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Mechanics of stress-laminated timber bridges with butt end joints
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Wood Science and Engineering.ORCID iD: 0000-0002-0145-080X
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Wood Science and Engineering.ORCID iD: 0000-0002-0145-080X
Martinsons Träbroar AB.
2017 (English)Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

A number of variants of single span and three-span stress-laminated timber bridge decks have been studied via finite element simulations and experiments. Glulam beams in the decks were in general shorter than the total length of span which means that there were butt end joints in the decks. The butt end of each beam in a joint was not connected to the other beam which means that each butt end joint reduced the strength and stiffness of the whole of the deck. Results for deflection and stresses were examined for the studied variants in the form of reduction factors for strength and stiffness relative to a deck without butt end joints.

Factors are shown in diagrams as function of ratio butt end distance/beam width and also butt end distance/span width. Comparison of achieved results with existing Eurocode rules shows that Eurocode rules are not totally appropriate.

Place, publisher, year, edition, pages
2017.
Keyword [en]
timber bridges, stress laminated, butt end joints, finite element simulations, Eurocode
National Category
Wood Science Other Mechanical Engineering
Research subject
Wood Science and Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-63062OAI: oai:DiVA.org:ltu-63062DiVA: diva2:1089126
Conference
3rd International conference on timber bridges 2017, ICTB2017, Skellefteå, June 26-29 2017
Available from: 2017-04-18 Created: 2017-04-18 Last updated: 2017-04-20Bibliographically approved

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