Civil Engineering Reference
In-Depth Information
5.10
COMPUTER EXAMPLES
EXAMPLE 5.13
Repeat Example 5.2 using SABLE 32.
SOLUTION
Design a Singly Reinforced T-Beam
Properties of the Concrete
f
c
= 4000 psi
E
c
= 3604997 psi
Beta
1
= 0.850
Concrete strain = 0.0030 in/in
Properties of the Reinforcing Steel
f
y
= 6000 psi
E
s
= 29000000 psi
Yield strain = 0.00207 in/in
Tension Reinforcement Specified
8 #10 deformed bars
A
s
= 10.128 sq. in.
Specified Dimensions
b = 30.00 in
d = 30.00 in
h = 33.00 in
t = 4.00 in
bw = 14.00 in
For the steel area provided
As provided = 10.128 sq. in.
C = 9.641 in
Steel strain = 0.00634 in/in
a = 0.850(9.641) = 8.195 in
rho = 0.024
phi = 0.900
phi(Mn) = 0.900(16196855.4) = 14577169.9 lb-in = 1214.8 ft-k
EXAMPLE 5.14
Repeat Example 5.10 using SABLE 32.
SOLUTION
Properties of the Concrete
f
c
= 4000 psi
E
c
= 3604997 psi
Beta
1
= 0.850
Concrete strain = 0.0030 in/in
