Research Article
Investigating Flexural Behaviour of Prestressed Concrete Girders Cast by Fibre-Reinforced Concrete
Table 2
Properties of prestresssing wires and detail of prestressing force.
| | Sr. No. | Nominal diameter | Exact diameter (mm) | Weight (kg/m) | Area (mm2) | Yield strength (MPa) | Ultimate strength (MPa) | Elongation (%) | Effective prestress (Pe) kN (% of ultimate strength) |
| | 1 | 9.5 mm strands | 8.407 | 0.436 | 55.484 | 0 | 1906 | 3.13 | 70 (66) | | 2 | 8.382 | 0.433 | 55.471 | 0 | 1903 | 4.69 | | 3 | 5 mm HT wire | 5.004 | 0.155 | 20 | 1569 | 1772 | 3.19 | 27 (76) | | 4 | 5.004 | 0.155 | 20 | 1569 | 1769 | 3.15 | | 5 | 5 mm ST wire | 5.791 | 0.207 | 26.451 | 470 | 584 | 17.19 | — | | 6 | 5.791 | 0.207 | 26.451 | 452 | 553 | 12.5 | — |
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