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INFLUENCE OF TEMPERATURE AND ULTRAVIOLET IRRADIATION ON DEFORMATION CAPACITY OF GLUED WOOD

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Author(s): V. P. Yartsev | D. V. Antipov | O. A. Kiselyova

Journal: Scientific Herald of the Voronezh State University of Architecture and Civil Engineering
ISSN 2075-0811

Volume: 4;
Issue: 8;
Start page: 14;
Date: 2010;
Original page

Keywords: glued wood | strength | deformability | temperature-humidity exposures | thermal fluctuations theory

ABSTRACT
Problem statement. The presence of polymer glued interlayer causes changes in a glued wood structure and its properties. Consequently, using laminated constructions it is necessary to make corrections in estimated characteristics of wooden items and constructions.Results and conclusions. Influence of quantity of layers on bearing capacity of glued wood is established. Strength dependencies of glued wood on temperature and loading are obtained in accordance with thermal fluctuations theory. Thermal fluctuations approach is applied to lateral bending deformation of glued wood. Physical constants for the analytical description of these processes at temperature variation and operation time are calculated from the results. Differences in pattern of change in strength of whole and glued wood are revealed under climate influence on them.
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