I-beam truss structure

Details I-beam truss structure I-beam truss structure

E - Fixed Constructions

04

C

26/181, 20/48

E04C 3/14 (2006.01) E04C 3/16 (2006.01)

Patent

CA 1130078

3821-CIP I-BEAM TRUSS STRUCTURE Abstract of the Disclosure A wooden truss structure comprises upper and lower chords, each of which is grooved on the side facing the opposite chord. A web member formed of sheet material, such as plywood, interconnects the chords and fits within the chord grooves. At the web/groove interface, the webs are scalloped to provide alternating alignment guide areas and glue vent areas which extend above the interface and allow the escape of excess glue from the groove. The scalloping, in addition to venting the glue line, forms individual, pressurized glue pockets which assure even glue distribution. The scalloping is preferably provided by pressing the wood web material to compress it at the glue vent areas and thus permit the web member, due to its memory, to expand after contact with the glue. This expansion pressurizes the glue pockets and forces glue from the joint area into the wood further enhancing the expansion process. The web is rigidly bonded to the chord members, all while being aligned by the alignment guide portion. This scalloping is effected along the lateral walls of the web at right angles to the longitudinal dimension of the web and consists of compressing the wood so that the impressions are deeper at their bottom than at their top.

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