Section 4: PRESTRESSING STRANDS/BARS - Caltrans
allow the use of couplers for extending plain or deformed bars. The coupled unit must have a tensile strength of not less than the manufacturer’s minimum guaranteed ultimate tensile strength of the bars. Figure 4-2 – Typical Stress-Strain Curve for 0.5 inch (12.70 mm) 270 ksi (1860 MPa) Strand 2010 SS, Section 50-1.02B, Prestressing Steel. C
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