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Improved edge design for stress-laminated decks made of spruce
RISE - Research Institutes of Sweden, Built Environment, Building Technology. (Träbyggande och boende)
Martinsons Group, Sweden.
Moelven Töreboda AB, Sweden.
Swedish Transport Administration, Sweden.
Show others and affiliations
2017 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Stress-laminated bridge decks in Sweden are usually made of glulam beams of spruce and it is therefore crucial to avoid moisture as the wood has no impregnation that can protect it from decay. Typically the protection of the deck consists of a waterproof bitumen sheet under the asphalt layers on the top surface and of claddings along the edges. The aim of this work was to study the risk of damages and how to ensure the function of the deck plates. The adhesion of bitumen sheets and the effect of different primers was studied. The design at the edges was studied and an improved solution with a steel angle along the deck edge was developed and tested. The improved design should be robust and easy to install to always assure a correct performance. The new design has been developed within the European research project DuraTB - Durable Timber Bridges and is now included in general recommendations for timber bridges in Sweden.

Place, publisher, year, edition, pages
2017.
Keyword [en]
timber bridge, stress-laminated deck, waterproof bitumen sheet, bitumen primer, edge
National Category
Infrastructure Engineering
Identifiers
URN: urn:nbn:se:ri:diva-32394OAI: oai:DiVA.org:ri-32394DiVA: diva2:1152919
Conference
ICTB 2017, 3rd International Conference on Timber Bridges Skellefteå, Sweden. 26-29 June, 2017
Funder
VINNOVA
Note

DuraTB - Durable Timber Bridges

Available from: 2017-10-26 Created: 2017-10-26 Last updated: 2017-10-31Bibliographically approved

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  • Other locale
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