Civil Engineering Reference
In-Depth Information
Table 2.10
(continued)
Reference
Wire ropes
Nominal
diameter
d
Nominal
strength
R
o
Test
frequenzy
Free
rope
length
Number
of tests
Constants
Standard
deviation
N for d = 16
mm, S
u
/
d
2
= 20, 2S
a
/
d
2
= 200 N/
mm
2
N/mm
2
mm
Hz
L/d
n
a
0
a
1
a
2
a
3
a
4
lg s
Warrington
a
8 9 19—
NFC—sZ
lubricated
Müller
(
1962
,
1963
,
1966
)
16
1,570
3.0
50
6
18.025
-5.109
-
-
0.194
266,000
Suh and
Chang
(
2000
)
Warrington
6 9 19—
IWRC—sZ
lubricated
12.5
1,570
70
8
10.555
-2.137
0.000459
-0.0000015
-
0.137
140
6
210
4
Müller
(
1962
,
1963
,
1966
)
Cross lay ropes
lubricated
a
6 9 7—
NFC—sZ
16
1,570
3.0
50
5
12.219
-3.175
-
-
-
0.035
81,900
6 9 19—
NFC—sZ
16
1,570
50
10
12.760
-3.474
-
-
-
0.143
58,400
6 9 37—
NFC—sZ
16
1,570
50
7
12.457
-3.327
-
-
-
0.080
63,400
6 9 61—
NFC—sZ
16
1,570
50
7
12.537
-3.356
-
-
-
0.112
65,200
a
Lower specific tensile force S
u
/d = 20 N/mm
2
b
Partly with ventilator for cooling
c
Lubricated/unlubricated
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