Patent ID: 7293394
Filing Date: 2007-11-13
Classification: E04C,E04G

Abstract:
1. A support device for a buckling opposing support of a web portion between a top chord and a bottom chord of an I-joist, said support device comprising: a. at least two bridging structures each separately defining a buckling opposing interface with said web portion and across a web height of said web portion in an assembled position in which said bridging structure is attached to said web portion; b. a spacing structure for combining and holding said bridging structures; wherein said I-joist is made from a material selected from a group consisting of wood and wood like materials; and wherein at least one of said bridging structures provides at least one of: such that said bridging structure has increased bending resistance and the buckling opposing interface is stiffened, both to the extend that a buckling tendency of said web portion at an assembly location of said support device on said I-joist remains within predetermined safety limits irrespective an eventually erroneously hole cut into said web portion at said assembly location; the support device is configured such that in said assembled position a main planar body of said support device is immediately adjacent said web portion, said support further comprising: