FIELD: construction.
SUBSTANCE: invention relates to construction, in particular, to composite laminate wood bars. Wood structural bar consists of glued together outer and inner wooden boards (plates). On outer boards bar has lock-on connection, which in upper part is represented by a projection in form of a trapezium and has a groove which repeats shape of upper ledge. On upper surface of beam formed by inner plates, there are small projections (teeth) having in cross-section shape of a triangle, number of which can be different, even and odd.
EFFECT: technical result is improved operational resistance and durability of beam.
3 cl, 2 dwg
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