1.0 in. Dia. Eye Bolt
14 Threads/in
1.5 in.
9.0 in.
0.5 in.
2.5 in.
12.0 in.
0.75 in. Dia. Hole
a. Bolt pull-out test configuration.
b. Bolt pull-out test for the 12.7-mm
(0.5-in.) thick W-beam FRP.
Figure 22. Bolt pull-out test.
Table 4. Results of bolt pullout tests of the 12.7-mm (0.5-in.) thick FRP
W-beam.
Specimen no.
Failure load (lbf)
Nature of failure
W-1
10,300
Longitudinal cracks downward from bottom hole
W-2
10,300
One longitudinal and one transverse crack
W-3
10,500
Two transverse cracks from bottom hole
W-4
10,575
Two transverse cracks from bottom hole
W-5
9,620
One longitudinal crack from top hole
W-6
11,025
Two cracks, one longitudinal, one transverse
W-7
10,300
Two cracks from the top hole
W-8
10,740
Two cracks from the top hole
Average = 10,420
Std. dev. = 384
SI conversion factor : 1 lbf = 4.45 N
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