$4\mathrm{.}1\mathrm{.}2$

Load trace the following assuming a live load of $50psf$ :

a$)$ FBD of the interior beam

b$)$ FBD of the girder

Loads:

Quarry tile $=5psf$

Concrete slab $=12\mathrm{.}5$ psf per inch of thickness

Metal decking $=2\mathrm{.}5psf$

Suspended acoustical ceiling $=1psf$

Fireproofing of steel decking $\frac{?}{?}$ framing $=1psf$

Beam self weight $=40$ pounds per lineal foot $($plf$)$

Girder self weight $=60plf$

$($a$)$ Isometric view of partial steel framing arrangement

Section B @ beam B$-2$

$($b$)$ Partial floor framing $-$ office structure