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.",
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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.