COMPOSITE WOODEN BAR Russian patent published in 2009 - IPC E04C3/12 

FIELD: construction.

SUBSTANCE: invention is related to elements of building structures, in particular to composite glued wooden bars intended for application as beams, columns and composite parts of building blocks. Composite glued wooden bar consists of plates joined in groove and comb. Groove and comb are made of wide sides of plates, glue layers between plates are located between tops of combs and bottom of grooves, height of combs exceeds depth of grooves, and width of combs is less than width of their according grooves. Groove and comb on at least some plates have different width that varies from plate to plate according to required profile of bar cross section. Width of grooves is equal to width of plates reduced by value of allowance for finishing treatment. On one side edge of bar there may be additional groove or comb arranged for connection to structural or reinforcing element. In glue layers there are armoring net gaskets laid continuously along the whole length of bar.

EFFECT: cost reduction of timber due to lowering of requirements to quality of initial saw timber and accuracy of their processing prior to gluing.

5 cl, 6 dwg