Civil Engineering Reference
In-Depth Information
Fig. 2.24 Torque of a Filler
rope 8 9 (19 + 6F)-IWRC-
sZ, Feyrer and Schiffner
(
1986
)
Filler 8
(19
+
6F)-IWRC
200
Nm
ordinary lay
d = 16.6 mm
150
100
360 / 100 d
180 / 100 d
0
−
180 / 100 d
50
−
360 / 100 d
0
20
40
60
80
100
kN
rope tensile force S
0
200
400
600
800
rope tensile stress
˃
z
Fig. 2.25 Torque of a Seale
rope 8 9 19-PWRC-zZ,
Feyrer and Schiffner (
1986
)
360 /100 d
250
Nm
Seale 8
19 -PWRC
lang lay
d = 16.4 mm
270 /100 d
200
180 /100 d
90 /100 d
0
150
inner
break
100
−
90 /100 d
−
180 /100 d
−
270 /100 d
−
360 /100 d
50
0
20
40
60
80
100
kN
0
rope tensile force S
800
0
200
400
600
N/mm
2
rope tensile stress
˃
z
Seale rope 8 9 19-PWRC-zZ. In the twisted state the strands and the core are
loaded very differently. Therefore in the 360 untwisted wire rope on the rope
length L = 100d, the core breaks very soon at the relative small rope tensile stress
rz = 640 N/mm
2
, as to be seen in Fig.
2.25
.
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