An enhanced beam model for glued laminated structures that takes moisture, mechano-sorption and time effects into account

Sigurdur Ormarsson, Jan Roar Steinnes

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Abstract

There is a need of more advanced analysis for studying how the long-term behaviour of glued laminated timber structures is affected by creep and by cyclic variations in climate. A beam theory is presented able to simulate the overall hygro-mechanical and visco-elastic behaviour of (inhomogeneous) glulam structures. Two frame structures subjected to both mechanical and cyclic environmental loading are analysed to illustrate the advantages the model involved can provide. The results indicate clearly both the (discontinuous) inhomogeneity of the glulam products and the variable moisture-load action that occurs to have a significant effect on deformations, section forces and stress distributions within the frame structures that were studied.
Original languageEnglish
Title of host publicationWorld Conference on Timber Engineering, Proceedings — 2014
Number of pages2
Publication date2014
Publication statusPublished - 2014
Event13th World Conference on Timber Engineering: Renaissance of Timber Construction - Quebec City, Canada
Duration: 10 Aug 201414 Aug 2014
Conference number: 13

Conference

Conference13th World Conference on Timber Engineering
Number13
CountryCanada
CityQuebec City
Period10/08/201414/08/2014

Keywords

  • Beam element
  • Creep
  • Fe-simulation
  • Mechano-sorption
  • Moisture-related stresses
  • Wood

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