A multi-Fickian model to simulate the hygro-thermal behaviour of stress-laminated timber decks

Stefania Fortino, Petr Hradil, Merja Sippola, Andrea Genoese, Alessandra Genoese

    Research output: Contribution to conferenceConference articleScientific

    Abstract

    The hygro-thermal behaviour of timber bridges exposed to continuously variable climates is a fundamental topic for their durability, serviceability and safety. High daily humidity variations and large moisture changes at high levels of relative humidity RH provide large moisture gradients. The use of computational hygro-thermal methods can be useful, alongside with sensor techniques, for monitoring relative humidity and temperatures in timber structures. A multi-Fickian model was previously implemented in Abaqus FEM code and verified for wooden members under Southern Europe climates. The model was able to simulate the moisture states in each point of a wooden member by using as external loads the relative humidity and temperature of the air provided by in-situ measurements or by close meteorological stations. In the present work a variant of the model is developed to take into account the higher RH variations as well as the negative temperatures in Northern Europe environments. The model is used to numerically simulate the hygro-thermal response of stress-laminated timber decks in Norwegian timber bridges.
    Original languageEnglish
    Publication statusPublished - 2015
    EventEUROMECH Colloquium 556: Theoretical, Numerical, and Experimental Analyses in Wood Mechanics - Dresden, Germany
    Duration: 27 May 201529 May 2015

    Conference

    ConferenceEUROMECH Colloquium 556
    CountryGermany
    CityDresden
    Period27/05/1529/05/15

    Fingerprint

    Timber
    Atmospheric humidity
    Moisture
    Temperature
    Durability
    Finite element method
    Hot Temperature
    Monitoring
    Sensors
    Air

    Keywords

    • stress-laminated timber decks
    • hygro-thermal effects
    • multi-Fickian models
    • FEM
    • ProperTune

    Cite this

    Fortino, S., Hradil, P., Sippola, M., Genoese, A., & Genoese, A. (2015). A multi-Fickian model to simulate the hygro-thermal behaviour of stress-laminated timber decks. Paper presented at EUROMECH Colloquium 556, Dresden, Germany.
    Fortino, Stefania ; Hradil, Petr ; Sippola, Merja ; Genoese, Andrea ; Genoese, Alessandra. / A multi-Fickian model to simulate the hygro-thermal behaviour of stress-laminated timber decks. Paper presented at EUROMECH Colloquium 556, Dresden, Germany.
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    title = "A multi-Fickian model to simulate the hygro-thermal behaviour of stress-laminated timber decks",
    abstract = "The hygro-thermal behaviour of timber bridges exposed to continuously variable climates is a fundamental topic for their durability, serviceability and safety. High daily humidity variations and large moisture changes at high levels of relative humidity RH provide large moisture gradients. The use of computational hygro-thermal methods can be useful, alongside with sensor techniques, for monitoring relative humidity and temperatures in timber structures. A multi-Fickian model was previously implemented in Abaqus FEM code and verified for wooden members under Southern Europe climates. The model was able to simulate the moisture states in each point of a wooden member by using as external loads the relative humidity and temperature of the air provided by in-situ measurements or by close meteorological stations. In the present work a variant of the model is developed to take into account the higher RH variations as well as the negative temperatures in Northern Europe environments. The model is used to numerically simulate the hygro-thermal response of stress-laminated timber decks in Norwegian timber bridges.",
    keywords = "stress-laminated timber decks, hygro-thermal effects, multi-Fickian models, FEM, ProperTune",
    author = "Stefania Fortino and Petr Hradil and Merja Sippola and Andrea Genoese and Alessandra Genoese",
    note = "Project code: 100873 ; EUROMECH Colloquium 556 : Theoretical, Numerical, and Experimental Analyses in Wood Mechanics ; Conference date: 27-05-2015 Through 29-05-2015",
    year = "2015",
    language = "English",

    }

    Fortino, S, Hradil, P, Sippola, M, Genoese, A & Genoese, A 2015, 'A multi-Fickian model to simulate the hygro-thermal behaviour of stress-laminated timber decks', Paper presented at EUROMECH Colloquium 556, Dresden, Germany, 27/05/15 - 29/05/15.

    A multi-Fickian model to simulate the hygro-thermal behaviour of stress-laminated timber decks. / Fortino, Stefania; Hradil, Petr; Sippola, Merja; Genoese, Andrea; Genoese, Alessandra.

    2015. Paper presented at EUROMECH Colloquium 556, Dresden, Germany.

    Research output: Contribution to conferenceConference articleScientific

    TY - CONF

    T1 - A multi-Fickian model to simulate the hygro-thermal behaviour of stress-laminated timber decks

    AU - Fortino, Stefania

    AU - Hradil, Petr

    AU - Sippola, Merja

    AU - Genoese, Andrea

    AU - Genoese, Alessandra

    N1 - Project code: 100873

    PY - 2015

    Y1 - 2015

    N2 - The hygro-thermal behaviour of timber bridges exposed to continuously variable climates is a fundamental topic for their durability, serviceability and safety. High daily humidity variations and large moisture changes at high levels of relative humidity RH provide large moisture gradients. The use of computational hygro-thermal methods can be useful, alongside with sensor techniques, for monitoring relative humidity and temperatures in timber structures. A multi-Fickian model was previously implemented in Abaqus FEM code and verified for wooden members under Southern Europe climates. The model was able to simulate the moisture states in each point of a wooden member by using as external loads the relative humidity and temperature of the air provided by in-situ measurements or by close meteorological stations. In the present work a variant of the model is developed to take into account the higher RH variations as well as the negative temperatures in Northern Europe environments. The model is used to numerically simulate the hygro-thermal response of stress-laminated timber decks in Norwegian timber bridges.

    AB - The hygro-thermal behaviour of timber bridges exposed to continuously variable climates is a fundamental topic for their durability, serviceability and safety. High daily humidity variations and large moisture changes at high levels of relative humidity RH provide large moisture gradients. The use of computational hygro-thermal methods can be useful, alongside with sensor techniques, for monitoring relative humidity and temperatures in timber structures. A multi-Fickian model was previously implemented in Abaqus FEM code and verified for wooden members under Southern Europe climates. The model was able to simulate the moisture states in each point of a wooden member by using as external loads the relative humidity and temperature of the air provided by in-situ measurements or by close meteorological stations. In the present work a variant of the model is developed to take into account the higher RH variations as well as the negative temperatures in Northern Europe environments. The model is used to numerically simulate the hygro-thermal response of stress-laminated timber decks in Norwegian timber bridges.

    KW - stress-laminated timber decks

    KW - hygro-thermal effects

    KW - multi-Fickian models

    KW - FEM

    KW - ProperTune

    M3 - Conference article

    ER -

    Fortino S, Hradil P, Sippola M, Genoese A, Genoese A. A multi-Fickian model to simulate the hygro-thermal behaviour of stress-laminated timber decks. 2015. Paper presented at EUROMECH Colloquium 556, Dresden, Germany.