- Standard: BS 5896:2012
- Diameter range, mm: 8,0-15,2
- Tensile strength, MPa: 1770, 1860
Instruction for unwinding reinforcing strands (ropes)
Coils of reinforcing strands (ropes) are marked with a paper self-adhesive label with the image “arrow” to indicate the direction of unwinding of the strand in the following order (Figure 1):
– On the reinforcing strands (ropes) of the right twist, the arrow is directed inside the coil;
– On reinforcing strands (ropes) of the left twist, the arrow points outward of the coil.
Figure 1 Direction of unwinding of a strand (rope)
To avoid tangling of strands (ropes) during their processing, it is necessary to unwind a reinforcing strand (rope) depending on the direction of stranding (rope) in the direction indicated by the arrow (Figure 1).
The dimensions and properties of the strands according to BS 5896:2012.
Nominal values | Calculated values | |||||||
Strand diameter d, mm | Tensile strength Rm, N/mm2 | Cross-sectional areab Sn, mm 2 | Mass of one meter length M, g/m | Allowable mass deviation of one meter length, %
| Characteristic value of maximum load Fm, kN
| The characteristic value of 0.1% of the maximum permissible load Fp 0.1s, kN
| Normative limit value maximum load Fm, max, kN
| Minimum value of total elongation at maximum load, Agt, with Lo ≥ 500 mm,% |
7-strands | ||||||||
8,0 | 1860 | 38,0 | 296,8 | ± 2,0 | 70,7 | 62,2 | 81,3 | 3,5 |
9,3 | 1770 | 52,0 | 406,1 | ± 2,0 | 92 | 81 | 106 | 3,5 |
9,3 | 1860 | 52 | 406,1 | ± 2,0 | 96,7 | 85,1 | 111 | 3,5 |
9,6 | 1860 | 55 | 429,6 | ± 2,0 | 102 | 89,8 | 117 | 3,5 |
11,0 | 1770 | 70 | 546,7 | ± 2,0 | 124 | 109 | 143 | 3,5 |
11,3 | 1860 | 75,0 | 585,8 | ± 2,0 | 140 | 123 | 161 | 3,5 |
12,5 | 1770 | 93 | 726,3 | ± 2,0 | 165 | 145 | 190 | 3,5 |
12,5 | 1860 | 93 | 726,3 | ± 2,0 | 173 | 152 | 199 | 3,5 |
12,7 | 1860 | 112 | 874,7 | ± 2,0 | 208 | 183 | 239 | 3,5 |
12,9 | 1860 | 100 | 781,0 | ± 2,0 | 186 | 164 | 214 | 3,5 |
15,2 | 1670 | 139 | 1086,0 | ± 2,0 | 232 | 204 | 267 | 3,5 |
15,2 | 1860 | 139 | 1086,0 | ± 2,0 | 259 | 228 | 298 | 3,5 |
Note a. The elastic modulus (E) can be taken as 195 GPa (kN / mm2). Note b. The nominal linear density (mass of one meter of length) of the product is calculated from the cross-sectional area and density of 7.81 kg / dm3. Note c. The characteristic value of 0.1% of the maximum allowable load is calculated for all diameters as 88% of the specified characteristic value of the maximum load. Relaxation after 1000 hours no more than 2.5% Special properties in accordance with the additional requirements of BS 5896:2012. |
The strands are delivered in coils: - inner diameter: 750 mm, 800 mm, 900 mm; - outer diameter: max. 1600 mm; - width: 750 mm, 630 mm; The maximum weight of the coils is 4 tons. 7-wire strands are delivered with in-line styling.
- Type of winding:Strands
- Dimensions, mm, d*D*h:750 mm, 630 mm;
- Weight kg:4 t
- Diameter range, mm:750 mm - 1600 mm