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8 in
2 in
2 # 3
8 in
4 in
2 # 3
2 in
8 × 0.0175 in
P/2
P/2
36 in
36 in
36 in
36 in
36 in
108 in
Beam 1B or 1C
FIGURE 5.24
Example 5.16 showing the beam section and profile.
Example 5.16: Design
Ross et al. (1999) tested a series of beams by fixing the area of FRP and changing
the area of steel. Beams 1B and 1C in group 1 failed by FRP debonding and are
selected in this example (Figure 5.24).
f
=
7950 psi
c
f
=
60 ksi
y
A
=
8in.
×
0.0175 in. actual)
f
L
=
108 in.
f
f
*
f
=
320 ksi
E
=
20000 ksi
f
A
0.22 in.
2
=
s
E
=
29,000 ksi
s
PB
(1 )
=
80.1kN18kips
=
n
usethe more conservativeultimateload
PC
(1 )
=
71.2kN16kips
=
n
16
2
M
=×=
3ft
4k-ft
n
ε
bi
=
0 (research specimen)
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