Safey Bulletin 78 Flashcards
1
Q
Wooden I beams:
Top and bottom flanges 2x4
The web is very thin plywood, 11x 3/8 inches thick.
Beam length 56 feet
Weight of a 26 foot beam is less than 50 lbs.
Plywood burns at a high rate of heat release.
As soon as it begins to burn, it looses its strength.
A
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