ML16344A430
Text
IINNDDIIAANNAA AANNDD M MIICCHHIIGGAANN PPOOW WEERR DD.. CC.. CCOOOOKK NNUUCCLLEEAARR PPLLAANNTT UUPPDDAATTEEDD FFIINNAALL SSAAFFEETTYY AANNAALLYYSSIISS RREEPPOORRTT Revision:
16.4 Table: 14.4.8-2 Page:
1 of 1 Unit 2 Material Properties Concrete: f'c = 3500 psi Reinforcing Steel: fy = 40,000 psi Ultimate Moment of 1 ft wide Rectangular Section C = (0.85fc)(12)(0.85C)
T= sfy T = C
(
)( )(
)
85
.0 12 c'
0.85f sf C
y
=
Mu = T(d-0.425c)
After Substitutions, Mu = 3.33s(d-0.56s)
(1)
Permissible Diagonal Tension Shear Stress
[
]
c f
28
.2 2500 c
f 9.1 Vc
+
=
(2)
Permissible Punching Shear Stress c
f 4
Vc
=
(3)
Strength Increase Due to Dynamic Effects (Ref: 2)
(1) Where shear or diagonal tension governs, no increase is allowed.
(2) Where flexure governs, the following increases were used:
f'c = +25%, fy = +10%
Ultimate Moment of 1 ft Wide Rectangular Section: Mu = 3.67s(d-0.49s)