Strand Pattern Designation

Safe loads shown include dead load of $10$

psf for untopped members and $15$ psf for

topped members. Remainder is live load.

Long$-$time cambers include superimposed

dead load but do not include live load.

Key

$186-$ Safe superimposed service load, psf

$0\mathrm{.}7-$ Estimated camber at erection, in$.$

$0\mathrm{.}9-$ Estimated long$-$time camber, in$.$

DOUBLE TEE

$8\text{'}-0"$ x $24"$

Normal Weight Concrete

$f_c^{\text{'}}=5,000$

$f_{pu}=270,000$

Section Properties

Untopped

Topped

$A=401$ in$.{?}^2$

I $=20,985$ in$.{?}^4,27,720$ in$.{?}^4$

$y_b=17\mathrm{.}15$ in$.19\mathrm{.}27$ in$.$

$y_t=6\mathrm{.}85$ in$.6\mathrm{.}73$ in$.$

$S_b=1,224$ in$.{?}^3,1,439$ in$.{?}^3$

$S_t=3,064$ in$.{?}^3,4,119$ in$.{?}^3$

wt $=418$ plf $618$ plf

$DL=50psf,77psf$