Problem $(10pts$

Design a floor beam for the following criteria:

Office building floor

Dead load $=20psf$

Live load $=50$ psf

Beam length $=20ft$

Beam spacing $={24}^{?}$ on center

Douglas Fir Larch #$2$

$($Design for bending and check for shear$)$

$C_0=0\mathrm{.}9$

$C_w=1\mathrm{.}0$

$C_1=1\mathrm{.}0$

$C_L=1\mathrm{.}0$

$C_F=1\mathrm{.}0$

$C_b=1\mathrm{.}0$

$C_i=1\mathrm{.}0$

$C_c=1\mathrm{.}15$

$C_p=0\mathrm{.}9$