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 language | English |
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Title of host publication | World Conference on Timber Engineering (WCTE 2016) |
Editors | J. Eberhardsteiner, W. Winter, A. Fadai, M. Pöll |
Publisher | Vienna University of Technology |
Number of pages | 8 |
ISBN (Electronic) | 978-3-903039-00-1 |
ISBN (Print) | 978-3-903024-35-9 |
Publication status | Published - 2016 |
MoE publication type | A4 Article in a conference publication |
Event | 2016 World Conference on Timber Engineering, WCTE 2016 - Vienna, Austria Duration: 22 Aug 2016 → 25 Aug 2016 |
Conference
Conference | 2016 World Conference on Timber Engineering, WCTE 2016 |
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Abbreviated title | WCTE 2016 |
Country/Territory | Austria |
City | Vienna |
Period | 22/08/16 → 25/08/16 |
Keywords
- timber bridges
- moisture
- monitoring
- wood hysteresis
- hygro-thermal models
- FEM
- ProperTune