24 meters long, 4 meters per column, 6 meters wide. How large channel steel should be used to make the beam?
Bending moment M = 1/4PL = 16100NmP=18400N=18.4kNThe safety factor is taken as 1, and if the other is taken, the carrying capacity P is correspondingly reduced.
It is assumed that the channel material is Q235, model 14a, vertical, 3.5m, center force, and the maximum load is P.
The channel should not be used as bearing beam, 6 meters 4 meters across the Bay 14~16 I-steel beam available 1.2~1.5 m spacing C or Z shape.
