Hygro-thermal numerical models for stress-laminated timber decks

Stefania Fortino, Petr Hradil, Merja Sippola, Tomi Toratti

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

In this paper FEM simulations based on the recent advances in hygro-thermal modelling of wood are carried out for the stress-laminated timber deck (SLTD) of a timber bridge exposed to Northern climates. The work compares the performance of two different FEM models that were implemented in Abaqus code and have been also used in earlier works. The first model is based on a simple single-Fickian approach which uses only the moisture content as a variable and the second one is a full coupled analysis based on the multi-Fickian theory with sorption hysteresis of wood. Both models were previously verified for cases of wooden specimens in laboratory conditions as well as for bridge elements under warm Mediterranean climates. The first results of hygro-thermal simulations of a Norwegian bridge deck provide useful suggestions for the future development of numerical models for timber bridge elements under Northern climates.
Original languageEnglish
Title of host publicationCOST Timber Bridge Conference – CTBC 2014
EditorsSteffen Franke, Bettina Franke, Robert Widmann
Place of PublicationBern
Pages133-140
Publication statusPublished - 2014
MoE publication typeA4 Article in a conference publication
EventCOST Timber Bridge Conference, CTBS 2014 - Biel, Switzerland
Duration: 25 Sep 201426 Sep 2014

Conference

ConferenceCOST Timber Bridge Conference, CTBS 2014
Abbreviated titleCTBS 2014
CountrySwitzerland
CityBiel
Period25/09/1426/09/14

Fingerprint

Timber
Numerical models
Wood
Finite element method
Bridge decks
Hysteresis
Sorption
Moisture
Hot Temperature

Keywords

  • stress-laminated timber deck
  • moisture content
  • monitoring
  • hygro-thermal models
  • FEM

Cite this

Fortino, S., Hradil, P., Sippola, M., & Toratti, T. (2014). Hygro-thermal numerical models for stress-laminated timber decks. In S. Franke, B. Franke, & R. Widmann (Eds.), COST Timber Bridge Conference – CTBC 2014 (pp. 133-140). Bern.
Fortino, Stefania ; Hradil, Petr ; Sippola, Merja ; Toratti, Tomi. / Hygro-thermal numerical models for stress-laminated timber decks. COST Timber Bridge Conference – CTBC 2014. editor / Steffen Franke ; Bettina Franke ; Robert Widmann. Bern, 2014. pp. 133-140
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Fortino, S, Hradil, P, Sippola, M & Toratti, T 2014, Hygro-thermal numerical models for stress-laminated timber decks. in S Franke, B Franke & R Widmann (eds), COST Timber Bridge Conference – CTBC 2014. Bern, pp. 133-140, COST Timber Bridge Conference, CTBS 2014, Biel, Switzerland, 25/09/14.

Hygro-thermal numerical models for stress-laminated timber decks. / Fortino, Stefania; Hradil, Petr; Sippola, Merja; Toratti, Tomi.

COST Timber Bridge Conference – CTBC 2014. ed. / Steffen Franke; Bettina Franke; Robert Widmann. Bern, 2014. p. 133-140.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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Fortino S, Hradil P, Sippola M, Toratti T. Hygro-thermal numerical models for stress-laminated timber decks. In Franke S, Franke B, Widmann R, editors, COST Timber Bridge Conference – CTBC 2014. Bern. 2014. p. 133-140