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钢绞线
结构
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公称直径
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钢绞线测量尺寸A/mm
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测量尺寸A允许偏差/mm
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钢绞线参考截面积Sn/mm2
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每米钢绞线参考质量/(g/m)
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钢绞线直径Dn/mm
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钢丝直径d/mm
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1×3
|
6.20
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2.90
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5.41
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+0.15
-0.05
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19.2
|
155
|
|
6.50
|
3.00
|
5.60
|
21.2
|
166
|
|
8.60
|
4.00
|
7.46
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+0.20
-0.10
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37.7
|
296
|
|
8.74
|
4.05
|
7.56
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38.6
|
303
|
|
10.80
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5.00
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9.33
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58.9
|
462
|
|
12.90
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6.00
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11.2
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84.8
|
666
|
|
1×3Ι
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8.74
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4.05
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7.56
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38.6
|
303
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1×3结构钢绞线力学性能
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钢绞线结构
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钢绞线公称直径Dn/mm
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抗拉强度Rm/Mpa不小于
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整根钢绞线的最大力Fm/kN不小于
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规定非比例延伸力Fp0.2/kN不小于
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最大力总伸长率(L0≥400mm)Agt/%不小于
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应力松驰性能
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初始负荷相当于公称最大力的百分数/%
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1000h后应力松驰率r/%不大于
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对所有规格
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|
1×3
|
6.20
|
1570
|
31.1
|
28.0
|
3.5
|
60
70
80
|
1.0
2.5
4.5
|
|
1720
|
34.1
|
30.7
|
|
1860
|
36.8
|
33.1
|
|
1960
|
38.8
|
34.9
|
|
6.50
|
1570
|
33.3
|
30.0
|
|
1720
|
36.5
|
32.9
|
|
1860
|
39.4
|
35.5
|
|
1960
|
41.6
|
37.4
|
|
8.60
|
1470
|
55.4
|
49.9
|
|
1570
|
59.2
|
53.3
|
|
1720
|
64.8
|
58.3
|
|
1860
|
70.1
|
63.1
|
|
1960
|
73.9
|
66.5
|
|
8.74
|
1570
|
60.6
|
54.5
|
|
1670
|
64.5
|
58.1
|
|
1860
|
71.8
|
64.6
|
|
10.80
|
1470
|
86.6
|
77.9
|
|
1570
|
92.5
|
83.3
|
|
1720
|
101
|
90.9
|
|
1860
|
110
|
99.0
|
|
1960
|
115
|
104
|
|
12.9
|
1470
|
125
|
113
|
|
1570
|
133
|
120
|
|
1720
|
146
|
131
|
|
1860
|
158
|
142
|
|
1960
|
166
|
149
|
|
1×3? I
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8.74
|
1570
|
60.6
|
54.5
|
|
1670
|
64.5
|
58.1
|
|
1860
|
71.8
|
64.6
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注：规定非比例延伸Fp0..2值不小于整根钢绞线公称最大力Fm的90%
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