THE INFLUENCE OF CLT PANEL PRODUCTION TECHNOLOGY ON THEIR STRENGTH AND RIGIDITY
In this paper considered the technological features of the production of CLT panels with focus on overview of the thicknesses of the boards and their width in cross-section in the panel on their character of pressing and selection of adhesive systems. The quality of wooden building materials based on boards is highly dependent on many technological operations, and above all on the method of pressing and the type of adhesive system. Generally accepted technological features of the production of glued laminated timber are significantly different from the technology of production of CLT panels, since the latter work as plates, and the glued laminated timber elements are the core elements of frames of different types of buildings. For completeness of analysis of CLT panels as a structural material methods of research of panels at different types of stress states are given according to the results of which characteristics of strength and rigidity of panels are assigned and correspond to a certain class of strength of CLT of panels. As a rule, at the present stage of the development of panels, all boards have the same strength class, which greatly simplifies the calculation and increases the homogeneity of the panels, as the structure with mutually transverse layers of boards. Large dimensions and specificity of production of panels of panels has a number of tolerances and boundary parameters that affect the quality of panels and their strength characteristics, which is largely due to the tight control of all technological operations in the manufacture of panels of different thicknesses.
The cross laminated timber or CLT in the construction market has sparked a new expansion. The manufacturing practice of PKD panels has been around for more than 20 years in European countries, most notably in Austria, Germany and Switzerland.
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