Shear Strengthening of Concrete Members - Strengthening Design of Reinforced Concrete with FRP - page 164

own weight in addition to a single concentrated live load at mid-span, as shown in
Figure 6.P.1.

P

2#7

#3 @ 14"
o.c.

18"

16 ft

1.0"

7#7

f c = 4 ksi

1.5"

f y = 60 ksi

10"

FIGURE 6.P.1

Use MBrace CF130 CFRP sheets Table 3.6.

Problem 6.2
Repeat Problem 6.1 using NSM CFRP tape (Aslan 500) with the properties shown
in Figure 6.P.2. Note that the ACI440.2R-08 procedure for shear strengthening has
been calibrated for FRP sheets and not NSM tape. However, follow the same proce-
dure using NSM tape.

P

2#7

#3 @ 14"
o.c.

18"

16 ft

1.0"

7#7

f c = 4 ksi

1.5"

10" f y = 60 ksi

Aslan 500
Dimensions: 0.63 in × 0.079 in
f fu = 300 ksi
E f = 18000 ksi
ε fu = 0.0167

0.63"

0.079"

FIGURE 6.P.2

Problem 6.3
Assume that the beam given in Example 15.3 of the ACI440.2R-08 is deficient in shear
(reinforced with #3 stirrups @ 12" c/c). Strengthen this beam in shear under the upgraded
loads using the same FRP used in the example for flexural strengthening (Example 15.3
of ACI 440.0R-08).