Simulation of moisture diffusion in timber bridges exposed to rain

Petr Hradil, Stefania Fortino, G. Metelli, A. Musci, J. Dohnal, Maria Fredriksson

    Research output: Contribution to conferenceConference articleScientificpeer-review

    Abstract

    The paper presents a modified single-phase numerical model of timber exposed to the external climate. The previous studies by some of the authors showed that finite element method (FEM) with the single-Fickian theory of moisture diffusion is an efficient tool to simulate the moisture gradients in timber structures sheltered from rain. An extension of this approach that takes into account the effect of water due to rain or water traps is proposed in this paper and the numerical model is verified by comparisons with laboratory tests of Norway spruce joints exposed to artificial rain in the laboratory of Lund University. The model is then used to simulate moisture diffusion in selected details of timber bridge elements monitored within the DuraTB project.
    Original languageEnglish
    Number of pages10
    Publication statusPublished - 2017
    Event3rd International Conference on Timber Bridges, ICTB 2017 - Skellefteå, Sweden
    Duration: 26 Jun 201729 Jun 2017

    Conference

    Conference3rd International Conference on Timber Bridges, ICTB 2017
    Abbreviated titleICTB 2017
    CountrySweden
    CitySkellefteå
    Period26/06/1729/06/17

    Fingerprint

    Timber
    Rain
    Moisture
    Numerical models
    Cloud seeding
    Water
    Finite element method

    Keywords

    • ProperTune
    • timber bridges
    • moisture content
    • effect of rain
    • single-phase models
    • FEM

    Cite this

    Hradil, P., Fortino, S., Metelli, G., Musci, A., Dohnal, J., & Fredriksson, M. (2017). Simulation of moisture diffusion in timber bridges exposed to rain. Paper presented at 3rd International Conference on Timber Bridges, ICTB 2017, Skellefteå, Sweden.
    Hradil, Petr ; Fortino, Stefania ; Metelli, G. ; Musci, A. ; Dohnal, J. ; Fredriksson, Maria. / Simulation of moisture diffusion in timber bridges exposed to rain. Paper presented at 3rd International Conference on Timber Bridges, ICTB 2017, Skellefteå, Sweden.10 p.
    @conference{1f0d681af51542f4b62337e036135b59,
    title = "Simulation of moisture diffusion in timber bridges exposed to rain",
    abstract = "The paper presents a modified single-phase numerical model of timber exposed to the external climate. The previous studies by some of the authors showed that finite element method (FEM) with the single-Fickian theory of moisture diffusion is an efficient tool to simulate the moisture gradients in timber structures sheltered from rain. An extension of this approach that takes into account the effect of water due to rain or water traps is proposed in this paper and the numerical model is verified by comparisons with laboratory tests of Norway spruce joints exposed to artificial rain in the laboratory of Lund University. The model is then used to simulate moisture diffusion in selected details of timber bridge elements monitored within the DuraTB project.",
    keywords = "ProperTune, timber bridges, moisture content, effect of rain, single-phase models, FEM",
    author = "Petr Hradil and Stefania Fortino and G. Metelli and A. Musci and J. Dohnal and Maria Fredriksson",
    note = "Peer-reviewed, abstract only Project code: 100873; 3rd International Conference on Timber Bridges, ICTB 2017, ICTB 2017 ; Conference date: 26-06-2017 Through 29-06-2017",
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    Hradil, P, Fortino, S, Metelli, G, Musci, A, Dohnal, J & Fredriksson, M 2017, 'Simulation of moisture diffusion in timber bridges exposed to rain', Paper presented at 3rd International Conference on Timber Bridges, ICTB 2017, Skellefteå, Sweden, 26/06/17 - 29/06/17.

    Simulation of moisture diffusion in timber bridges exposed to rain. / Hradil, Petr; Fortino, Stefania; Metelli, G.; Musci, A.; Dohnal, J.; Fredriksson, Maria.

    2017. Paper presented at 3rd International Conference on Timber Bridges, ICTB 2017, Skellefteå, Sweden.

    Research output: Contribution to conferenceConference articleScientificpeer-review

    TY - CONF

    T1 - Simulation of moisture diffusion in timber bridges exposed to rain

    AU - Hradil, Petr

    AU - Fortino, Stefania

    AU - Metelli, G.

    AU - Musci, A.

    AU - Dohnal, J.

    AU - Fredriksson, Maria

    N1 - Peer-reviewed, abstract only Project code: 100873

    PY - 2017

    Y1 - 2017

    N2 - The paper presents a modified single-phase numerical model of timber exposed to the external climate. The previous studies by some of the authors showed that finite element method (FEM) with the single-Fickian theory of moisture diffusion is an efficient tool to simulate the moisture gradients in timber structures sheltered from rain. An extension of this approach that takes into account the effect of water due to rain or water traps is proposed in this paper and the numerical model is verified by comparisons with laboratory tests of Norway spruce joints exposed to artificial rain in the laboratory of Lund University. The model is then used to simulate moisture diffusion in selected details of timber bridge elements monitored within the DuraTB project.

    AB - The paper presents a modified single-phase numerical model of timber exposed to the external climate. The previous studies by some of the authors showed that finite element method (FEM) with the single-Fickian theory of moisture diffusion is an efficient tool to simulate the moisture gradients in timber structures sheltered from rain. An extension of this approach that takes into account the effect of water due to rain or water traps is proposed in this paper and the numerical model is verified by comparisons with laboratory tests of Norway spruce joints exposed to artificial rain in the laboratory of Lund University. The model is then used to simulate moisture diffusion in selected details of timber bridge elements monitored within the DuraTB project.

    KW - ProperTune

    KW - timber bridges

    KW - moisture content

    KW - effect of rain

    KW - single-phase models

    KW - FEM

    M3 - Conference article

    ER -

    Hradil P, Fortino S, Metelli G, Musci A, Dohnal J, Fredriksson M. Simulation of moisture diffusion in timber bridges exposed to rain. 2017. Paper presented at 3rd International Conference on Timber Bridges, ICTB 2017, Skellefteå, Sweden.