Analysis of local moisture increase of timber constructions on ice arena roof

Analysis of local moisture increase of timber constructions on ice arena roof

Paper in proceedings (conference paper)

Timber is one of the most used materials for roofing of ice arena because of its very good mechanical properties and low weight. High relative humidity of internal air, low temperature and ice rink presence, which cause fall of surface temperatures of constructions under the dew point due to radiation, are risky factors not only from structural point of view, when load bearing capacity of construction in time is reduced, but also from the view point of bio corrosion. Specific hygrothermal microclimate, different from air parameters in the ice arena, is formatted close to the individual members of roof construction. Newly developed mathematical and physical model using CFD simulation is used for simulation of hygrothermal stress in chosen part of the ice arena roof construction, which substantially affects quality, utility properties and life time of timber roof components. Results are compared with experiments in specific ice rink.

Timber is one of the most used materials for roofing of ice arena because of its very good mechanical properties and low weight. High relative humidity of internal air, low temperature and ice rink presence, which cause fall of surface temperatures of constructions under the dew point due to radiation, are risky factors not only from structural point of view, when load bearing capacity of construction in time is reduced, but also from the view point of bio corrosion. Specific hygrothermal microclimate, different from air parameters in the ice arena, is formatted close to the individual members of roof construction. Newly developed mathematical and physical model using CFD simulation is used for simulation of hygrothermal stress in chosen part of the ice arena roof construction, which substantially affects quality, utility properties and life time of timber roof components. Results are compared with experiments in specific ice rink.

roof, ice arena, ice rink, timber, wood, moisture, humidity, temperature, degradation, CFD

roof, ice arena, ice rink, timber, wood, moisture, humidity, temperature, degradation, CFD

ŽÁK, A.; ŠIKULA, O.; TRCALA, M.

2014

08.01.2013

Trans Tech Publications

Zurich

9783037855966

Envibuild 2012. selected, peer reviewed papers from the enviBUILD 2012, October 25-26, 2012 and the building performance simulation conference 2012, November 8-9, 2012, Brno, Czech Republic.

1022-6680

Advanced Materials Research

2013

649

Swiss Confederation

291

294

4

http://www.scientific.net/AMR.649.291

http://hdl.handle.net/11012/36201

978-0-00001-435-1_700
smlouva_CTA