Double 2 x 12 span

[Architect1281]

Ridiculous - When designing this with a 3/8 or 1/4" steel plat (Flitch Beam) You can not extend either beyond its limits

steel bending 22000 psi wood bending 1200 to 1400 psi so wood is 5-6% of steel in bending

the wood hols the steel vertical but I NEVER considered the combination as contributing to the capacity.

so OSB that is not linked or continuous or rated in bending??? adds dead load and detracts from the 2x12's capacity..............

 

[Uncle Bob]

I've enjoyed this thread. I also looked into the past and found our "George's" take to be interesting as always. I do miss him. This was a thread in 2010 on flitch beams and ply-wood. We are talking about osb; which I believe has no bending value.

I don't care if you put plywood between your built up beam....... [Archive] - The Building Code Forum

I've learned or relearned alot

 

[fatboy]

Wonder what happened to George.......