Conference Publication Details
Mandatory Fields
O'Ceallaigh, C., Sikora, K., McPolin, D., Harte, A.M
World Conference on Timber Engineering (WCTE 2018)
MECHANO-SORPTIVE CREEP IN REINFORCED GLULAM
2018
August
Published
1
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Optional Fields
FRP, Mechano-sorptive creep, Reinforced timber, Sitka spruce, Viscoelastic creep
Seoul, Korea
20-AUG-18
23-AUG-18
An investigation was carried out to examine the effect of reinforcement on the creep behaviour of FRP timber elements in a controlled variable climate. Creep is accelerated by moisture variations in a variable climate. This is termed the mechano-sorptive effect. In this paper, both unreinforced and reinforced beams are subjected to long-term creep tests with a common maximum compressive stress of 8 MPa. The relative humidity of the variable climate was cycled between 65% and 90% every four weeks while the temperature remained constant at 20 2C. The results after 75 weeks demonstrated a statistically significant reduction in total elastic and creep deflection in the reinforced beams. It was found that this reduction is primarily due to the restrained hygro-mechanical response of the reinforced beams.
Department of Agriculture, Food and the Marine
Grant Details
WoodProps
Publication Themes
Environment, Marine and Energy