Civil Engineering Reference
In-Depth Information
Table 2.12 Endurance factor f
T
=N
V
/N
w
, for rope with terminations related to resin sockets
Rope termination
Number
of ropes
z
Number
of tests
n
V
/n
w
Logarithm of the
endurance
factor lg f
T
Standard
deviation
lg s
fT
Endurance factor f
T
Metal socket
a,d
Cross-NFC-6 9 37
2/2
-0.544
0.367
0.286
Warr-SFC-8 9 19
12/19
Warr-IWRC-8 9 19
5/26
Splice eye
b
Warr-SFC-8 9 19
1
2/19
-1.008
0.161
0.098
Cylindric aluminum ferrule eye
termination
c,d,e,f,g,h
Cross-NFC-6 9 37
1
1/2
-0.463
0.368
0.345
Warr-NFC-8 9 19
1
15/19
Warr-IWRC-8 9 19
1
5/26
WS-IWRC-6 9 36
2
8/26
Flemic eye with steel clamp
d,i
Cross-NFC-6 9 37
1
9/2
-0.428
0.314
0.373
Warr-SFC-8 9 19
1
9/19
Press bolt
j
Spiral 37 9 1
1
7
-0.700
0.263
0.20
Wegde socket (rope lock)
d,k
Warr-SFC-8 9 19
1
1
36/19
0.306
¼ 14
28
14
28
¼
1
:
347
þ
0
:
0071 a
þ
0
:
145 l
K
=
d
n
a
l
K
=
d
¼
4
4
6
6
Warr-IWRC-8 9 19
46/26
¼
0
:
216
0
:
271
0
:
420
0
:
529
f
T
U-bolt clamp DIN 1142
d,l,m
Warr-SFC-8 9 19
1
5/19
-0.871
0.152
0.108
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