The utility model relates to construction and can be used as supporting structures of buildings and structures. SUBSTANCE: beam of composite section contains belts made of LVL-timber with parallel arrangement of wood veneer fibers, which are connected to a vertical wall made of LVL-plate with mutually perpendicular arrangement of veneer fibers, by means of self-tapping screws at an angle to LVL wood fibers in accordance with with the fields of the main tensile internal efforts. Moreover, the beam can be made of an I-beam or box-shaped section. The technical result is an increase in the load-bearing capacity of the beam due to the high LVL strength and the rational arrangement of self-tapping screws in the belt-wall joints in accordance with the direction of internal forces in the structure, which significantly reduces the flexibility of the joints. 2 s.p. f-ly, 2 ill.
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