A multi-Fickian hygro-thermal model for timber bridge elements under Northern Europe climates

Stefania Fortino, Petr Hradil, Andrea Genoese, Alessandra Genoese, Anna Pousette, Per-Anders Fjellström

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

3 Citations (Scopus)

Abstract

This work proposes a multi-Fickian method to analyse the hygro-thermal behaviour of timber bridge elements under Northern Europe climates. A temperature-dependent wood hysteresis is included in the model and the thermal effects due to temperatures above and below zero are taken into account. As a case study, the model is used for the hygro-thermal simulation of a glulam beam of Älsvbacka bridge in North of Sweden that was monitored by using wireless sensors in a previous study. The model, implemented in Abaqus FEM code, is able to predict the states of moisture and temperature in protected parts of the beam by using as external loads the relative humidity and temperature of the air provided by in-situ measurements. Furthermore a simplified model using a wood hysteresis independent of temperature is found to provide similar results and appears easier to implement in finite element codes.
Original languageEnglish
Title of host publicationProceedings of WCTE 2016
PublisherVienna University of Technology
Number of pages8
ISBN (Print)978-390303900-1
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

Timber
Hysteresis
Wood
Temperature
Thermal effects
Atmospheric humidity
Moisture
Hot Temperature
Finite element method
Sensors
Air

Keywords

  • timber bridges
  • moisture
  • monitoring
  • wood hysteresis
  • hygro-thermal models
  • FEM
  • ProperTune

Cite this

Fortino, S., Hradil, P., Genoese, A., Genoese, A., Pousette, A., & Fjellström, P-A. (2016). A multi-Fickian hygro-thermal model for timber bridge elements under Northern Europe climates. In Proceedings of WCTE 2016 Vienna University of Technology.
Fortino, Stefania ; Hradil, Petr ; Genoese, Andrea ; Genoese, Alessandra ; Pousette, Anna ; Fjellström, Per-Anders. / A multi-Fickian hygro-thermal model for timber bridge elements under Northern Europe climates. Proceedings of WCTE 2016. Vienna University of Technology, 2016.
@inproceedings{281556ceb10d478fbe220aa4f4a0643a,
title = "A multi-Fickian hygro-thermal model for timber bridge elements under Northern Europe climates",
abstract = "This work proposes a multi-Fickian method to analyse the hygro-thermal behaviour of timber bridge elements under Northern Europe climates. A temperature-dependent wood hysteresis is included in the model and the thermal effects due to temperatures above and below zero are taken into account. As a case study, the model is used for the hygro-thermal simulation of a glulam beam of {\"A}lsvbacka bridge in North of Sweden that was monitored by using wireless sensors in a previous study. The model, implemented in Abaqus FEM code, is able to predict the states of moisture and temperature in protected parts of the beam by using as external loads the relative humidity and temperature of the air provided by in-situ measurements. Furthermore a simplified model using a wood hysteresis independent of temperature is found to provide similar results and appears easier to implement in finite element codes.",
keywords = "timber bridges, moisture, monitoring, wood hysteresis, hygro-thermal models, FEM, ProperTune",
author = "Stefania Fortino and Petr Hradil and Andrea Genoese and Alessandra Genoese and Anna Pousette and Per-Anders Fjellstr{\"o}m",
note = "Project code: 100873",
year = "2016",
language = "English",
isbn = "978-390303900-1",
booktitle = "Proceedings of WCTE 2016",
publisher = "Vienna University of Technology",
address = "Austria",

}

Fortino, S, Hradil, P, Genoese, A, Genoese, A, Pousette, A & Fjellström, P-A 2016, A multi-Fickian hygro-thermal model for timber bridge elements under Northern Europe climates. in Proceedings of WCTE 2016. Vienna University of Technology, 2016 World Conference on Timber Engineering, WCTE 2016, Vienna, Austria, 22/08/16.

A multi-Fickian hygro-thermal model for timber bridge elements under Northern Europe climates. / Fortino, Stefania; Hradil, Petr; Genoese, Andrea; Genoese, Alessandra; Pousette, Anna; Fjellström, Per-Anders.

Proceedings of WCTE 2016. Vienna University of Technology, 2016.

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

TY - GEN

T1 - A multi-Fickian hygro-thermal model for timber bridge elements under Northern Europe climates

AU - Fortino, Stefania

AU - Hradil, Petr

AU - Genoese, Andrea

AU - Genoese, Alessandra

AU - Pousette, Anna

AU - Fjellström, Per-Anders

N1 - Project code: 100873

PY - 2016

Y1 - 2016

N2 - This work proposes a multi-Fickian method to analyse the hygro-thermal behaviour of timber bridge elements under Northern Europe climates. A temperature-dependent wood hysteresis is included in the model and the thermal effects due to temperatures above and below zero are taken into account. As a case study, the model is used for the hygro-thermal simulation of a glulam beam of Älsvbacka bridge in North of Sweden that was monitored by using wireless sensors in a previous study. The model, implemented in Abaqus FEM code, is able to predict the states of moisture and temperature in protected parts of the beam by using as external loads the relative humidity and temperature of the air provided by in-situ measurements. Furthermore a simplified model using a wood hysteresis independent of temperature is found to provide similar results and appears easier to implement in finite element codes.

AB - This work proposes a multi-Fickian method to analyse the hygro-thermal behaviour of timber bridge elements under Northern Europe climates. A temperature-dependent wood hysteresis is included in the model and the thermal effects due to temperatures above and below zero are taken into account. As a case study, the model is used for the hygro-thermal simulation of a glulam beam of Älsvbacka bridge in North of Sweden that was monitored by using wireless sensors in a previous study. The model, implemented in Abaqus FEM code, is able to predict the states of moisture and temperature in protected parts of the beam by using as external loads the relative humidity and temperature of the air provided by in-situ measurements. Furthermore a simplified model using a wood hysteresis independent of temperature is found to provide similar results and appears easier to implement in finite element codes.

KW - timber bridges

KW - moisture

KW - monitoring

KW - wood hysteresis

KW - hygro-thermal models

KW - FEM

KW - ProperTune

M3 - Conference article in proceedings

SN - 978-390303900-1

BT - Proceedings of WCTE 2016

PB - Vienna University of Technology

ER -

Fortino S, Hradil P, Genoese A, Genoese A, Pousette A, Fjellström P-A. A multi-Fickian hygro-thermal model for timber bridge elements under Northern Europe climates. In Proceedings of WCTE 2016. Vienna University of Technology. 2016