Effect of moisture induced stresses on the mechanical performance of glulam beams of Vihantasalmi Bridge

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

Researchers

Research units

  • VTT Technical Research Centre of Finland
  • University of Brescia

Abstract

The present paper deals with the effect of moisture induced stresses (MIS) on the mechanical performance of a glulam beam of Vihantasalmi Bridge in Finland. MIS caused by high moisture gradients in a cross section of the glulam beam are calculated by a hygro-thermal multi-Fickian model for evaluation of moisture content, relative humidity and temperature in wood that is sequentially coupled with an orthotropic-viscoelasticmechanosorptive model for calculation of wood stresses. Both models, already developed in Abaqus FEM code by some of the authors in their previous works, had to be modified for the Nordic climate. The obtained levels of MIS are then compared to the Eurocode 5 design resistances. The study aims at providing suggestions to future developments of Eurocode 5 for the correct evaluation of the influence of moisture content on service life in timber bridge elements.

Details

Original languageEnglish
Title of host publicationProceedings of the World Conference on Timber Engineering (WCTE 2016)
Publication statusPublished - 2016
MoE publication typeA4 Article in a conference publication
EventWorld Conference on Timber Engineering - Vienna, Austria
Duration: 22 Aug 201625 Aug 2016
Conference number: 14
http://wcte2016.conf.tuwien.ac.at/home/

Conference

ConferenceWorld Conference on Timber Engineering
Abbreviated titleWCTE
CountryAustria
CityVienna
Period22/08/201625/08/2016
Internet address

    Research areas

  • Eurocode 5, Moisture induced stresses, Monitoring, Timber bridges

ID: 10884597