Effect of moisture induced stresses on the mechanical performance of glulam beams of Vihanyasalmi bridge

Petr Hradil, Stefania Fortino, Lauri Salokangas, Alessandro Musci, Giovanni Metelli

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

    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-viscoelastic-mechanosorptive 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.
    Original languageEnglish
    Title of host publicationWCTE 2016 - World Conference on Timber Engineering
    PublisherVienna University of Technology
    Number of pages9
    ISBN (Electronic)978-390303900-1
    ISBN (Print)978-3-903024-35-9
    Publication statusPublished - 2016
    MoE publication typeA4 Article in a conference publication
    Event2016 World Conference on Timber Engineering, WCTE 2016 - Vienna, Austria
    Duration: 22 Aug 201625 Aug 2016

    Conference

    Conference2016 World Conference on Timber Engineering, WCTE 2016
    Abbreviated titleWCTE 2016
    CountryAustria
    CityVienna
    Period22/08/1625/08/16

    Fingerprint

    Moisture
    Wood
    Timber
    Service life
    Atmospheric humidity
    Finite element method
    Temperature

    Keywords

    • timber bridges
    • monitoring
    • moisture induced stresses
    • Eurocode 5
    • ProperTune

    Cite this

    Hradil, P., Fortino, S., Salokangas, L., Musci, A., & Metelli, G. (2016). Effect of moisture induced stresses on the mechanical performance of glulam beams of Vihanyasalmi bridge. In WCTE 2016 - World Conference on Timber Engineering Vienna University of Technology.
    Hradil, Petr ; Fortino, Stefania ; Salokangas, Lauri ; Musci, Alessandro ; Metelli, Giovanni. / Effect of moisture induced stresses on the mechanical performance of glulam beams of Vihanyasalmi bridge. WCTE 2016 - World Conference on Timber Engineering. Vienna University of Technology, 2016.
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    title = "Effect of moisture induced stresses on the mechanical performance of glulam beams of Vihanyasalmi bridge",
    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-viscoelastic-mechanosorptive 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.",
    keywords = "timber bridges, monitoring, moisture induced stresses, Eurocode 5, ProperTune",
    author = "Petr Hradil and Stefania Fortino and Lauri Salokangas and Alessandro Musci and Giovanni Metelli",
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    Hradil, P, Fortino, S, Salokangas, L, Musci, A & Metelli, G 2016, Effect of moisture induced stresses on the mechanical performance of glulam beams of Vihanyasalmi bridge. in WCTE 2016 - World Conference on Timber Engineering. Vienna University of Technology, 2016 World Conference on Timber Engineering, WCTE 2016, Vienna, Austria, 22/08/16.

    Effect of moisture induced stresses on the mechanical performance of glulam beams of Vihanyasalmi bridge. / Hradil, Petr; Fortino, Stefania; Salokangas, Lauri; Musci, Alessandro; Metelli, Giovanni.

    WCTE 2016 - World Conference on Timber Engineering. Vienna University of Technology, 2016.

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

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    AU - Hradil, Petr

    AU - Fortino, Stefania

    AU - Salokangas, Lauri

    AU - Musci, Alessandro

    AU - Metelli, Giovanni

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    AB - 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-viscoelastic-mechanosorptive 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.

    KW - timber bridges

    KW - monitoring

    KW - moisture induced stresses

    KW - Eurocode 5

    KW - ProperTune

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    Hradil P, Fortino S, Salokangas L, Musci A, Metelli G. Effect of moisture induced stresses on the mechanical performance of glulam beams of Vihanyasalmi bridge. In WCTE 2016 - World Conference on Timber Engineering. Vienna University of Technology. 2016