Abstract:
In modern construction, glued wood is used mainly by Scandinavian countries,
Canada, the USA and Russia. It is rational to use glued wood not only in low-rise housing
construction, but also as supporting and protecting structures of large-span public buildings.
Large-span glued wooden structures have become popular in modern construction and are widely
used for public buildings with spans of 18 meters or more. In the practice of building Western
countries with significant reserves of wood, sports facilities, exhibition halls, cinemas and other
entertainment buildings are being built from glued wood. According to the condition of
transportation, a lengthy beam, frame or truss must be made of two or three elements, and then
connected at the construction site into a single structure. The use of mechanical fasteners in the
form of bolts is not always possible due to significant compliance, including due to thermal
expansion of the metal in a harshly continental climate, for example, in Kazakhstan and under
fire safety conditions, when metal parts quickly lose their bearing capacity. Significant
deformations occurring in the nodes can cause a redistribution of forces in the elements and as a
result lead to the destruction of the structure. To create a durable rigid joint of glued wood
constructions, the joints on the reinforcing rods glued under the inclinations to the fibers are
used, which, as practice shows, ensure high reliability, durability and low compliance. This
article discusses the technology of gluing reinforcing rods into wood to solve large-span
structures and their welding. On the basis of experimental scientific studies, the sequence of the
necessary technological processes for obtaining a durable, reliable and high-quality glue joint
between the rod and wood and the possibility of welding the reinforcing rods glued to the wood
with a connecting piece are shown. In this study, various variants of the joints of maple
structures, where it is possible to use the welding of its elements, are carried out.
