wood I joist
wood I joist
(OP)
what is the rationale for allowing 98% of the osb web to be cut out of wood I joist? they recommend cutting holes in the center of the span. How does this affect the resistance to maximum bending moment at the center? Would the unit act like a truss with 45 degree force lines thus aviding the hole?
Inspector Jeff in Florida






RE: wood I joist
OSB web on the other hand carries most of the shear so TJI catalog tabulates some distance from the support where holes are not allowed.
I am not sure about the 98% value.
RE: wood I joist
I think the code maximum is 60 percent cut out, though you should verify that with our "fabulous" FBC 2001!!
RE: wood I joist