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.
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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.