Strength of non-compact HSS
Strength of non-compact HSS
(OP)
What is the formula for reducing the strength of non-compact HSS?
LRFD, pg4-8 gives the formula
phi.b Mn = phi.b Mp - phi.b(Mp-Mr)[(Lb-Lp)/(Lr-Lp)].
But the section says that this is for I or C rolled shapes only.
LRFD, App. F, pg 6-11 gives (substituting l for lambda)
Mn = Cb[Mp - (Mp-Mr)[(l-lp)/(lr-lp)]
Can I use the second formula for any shape?
Imagineer
LRFD, pg4-8 gives the formula
phi.b Mn = phi.b Mp - phi.b(Mp-Mr)[(Lb-Lp)/(Lr-Lp)].
But the section says that this is for I or C rolled shapes only.
LRFD, App. F, pg 6-11 gives (substituting l for lambda)
Mn = Cb[Mp - (Mp-Mr)[(l-lp)/(lr-lp)]
Can I use the second formula for any shape?
Imagineer






RE: Strength of non-compact HSS
That'll teach me. Read the entire paragraph!
Imagineer