Problem $1[25$ Points$]$

A school building has a roof framing plan as shown in Figure $1.$

A$)$ Use Table $4\mathrm{.}3-1$ of ASCE $7-16$ and determine the

uniformly distributed roof live load $($unit: psf$).$

B$)$ Reference the roof framing plan shown in Figure $1$ and

determine the uniformly distributed roof loads due to

dead load and live load for the members listed below.

a$)$ Purlin P$2($unit: lbf$/$ft$)$

b$)$ Girder G$1($unit: lbf$/$ft$)$

c$)$ Corner Column C$1($unit: kip$)$

C$)$ Reduce roof live load where applicable and calculate

the uniformly distributed roof loads due to live load for

the members listed above.

Assumptions:

Roof dead load$=15$ psf

Roof is flat $($slope is $1^{\text{'}\text{'}}$ per foot$)$

Parameters:

$a_1=25ft$

$a_2=60ft$

$b_1=30ft$

$b_2=45ft$

Purlin spacing $=\frac{a_1}{5}$

Note: A copy of the Live Load Chapter of ASCE $7-16$ is available on Brightspace $($Content$\backslash$Handouts$).$