L = (roof load) = (20 psf)(20' = 400 plf (5.84 KN/m)
Gravity loads to mezzanine beams:
D = (mezz. load) + (tributary weight of walls) = (39 psf)(4' + (4 psf)(10' = 196 plf (2.86 KN/m)
L = (mezz. load) = (125 psf)(4' = 500 plf (7.30 KN/m)
Gravity loads to columns:
The interior columns of the braced bays (along wall lines B & H) must support the loads from the upper
roof beams in both the braced bay and the adjacent door bay. Therefore, point loads are applied to these
interior columns equal to the beam reaction force from the adjacent bay.
Dadj. beam = 400 plf (see step A.10 for calculation)(20'2) = 4k (17.8KN)
Ladj. beam = 400 plf (see step A.10 for calculation)(20'2) = 4k (17.8KN)
Lateral forces to braced frame:
QE top level = 5.61 k (25.0 KN)
QE bot level = 6.15 k (27.4 KN) (includes torsional force)
Load Case: 1.2D + 1.0L + 0.2S + Ω 0QE (Assume L applies to all live loads, Ω 0 = 2.0).