IMPROVING THE TECHNOLOGY OF GLUED WOODEN STRUCTURES WITH INCREASED SUPPORT ZONES
Article is devoted to the design and manufacturing of high laminated wooden beams with the definition of the boundaries of the gain maximum stressed zones adhesive oligomer based on carbon nanotubes (CNT). The use of high glulam beams with a ratio h/b≥6 construction in areas with large and technologically snow-loads of a new development related to the development of the northern territories. One of the ways to increase the operational reliability of glulam beam structures is to enhance support areas, which increases the strength characteristics and resistance to shearing and tensile stresses. The article is written based on the results of dissertation for the degree of candidate of technical sciences, in which: a mathematical model developed by the estimated power oligomer support portion of the beam, adequately reflects the transversely isotropic physical properties of laminated wood and nanomodified material based on fiberglass, epoxy resin and bisphenol-walled carbon nanotubes; a refined technique of engineering and numerical calculations glulam beam structures with enhanced support areas; proved experimentally the possibility of increasing the strength of wood composite beams with increased support areas oligomer based on CNTs. Results of the research described in this paper, can extend the use of high maple wooden beam structures, reduce exorbitant voltage reference sections of beams and increase the operational reliability of structures. These technological and technical solutions for the manufacture of high-glued wooden beam structures with increased support zones oligomer CNT-based recommended in the manufacture, reconstruction and repair of glulam beams.