Steel/Wood Combined Beam 8

[DYork]

I have to design a beam that must span what a 2-2x12 beam could handle. How do I calculate what a 2-2x6 beam w/ a 1/4" steel plate sandwhiched in the middle can support. Thanks for the help in advance.

Devon

 

[bplech]

I ratioed the E for steel to the E for wood 29/1.8=16.1, so the 1/4" steel plate is equivalent to a 4x6 board. Verify the bearing stress of the steel plate if on a timber support, the flinch plate ought to be connected securely to the wood boardss on each side, to create loading on a single beam and to stabilize buckling of the steel plate.