Prestress/Post-Tensioning Strand Systems

DYWIDAG-Systems International

9-0.6

Last edit date: 3/20/2024

GENERAL

Bar or Tendon Size Strand Diamter Ultimate (kips) Concrete Strength(psi) PJack (kips)
9 0.6" 527.4 3500 396

WEDGES

Wedges Length Material Wedge Parts Wedge Angle Wedge Inside Diameter
1.654" AISI C12L14 Rc 58-67 7° 30' ± 10' 0.56" ± 0.003"
1.654" AISI 11L17 7° 30' ± 10' 0.56" ± 0.003"

ANCHOR HEADS

Anchor Heads Size Material Authorization Date
7" Ø x 2 3/8" AISI C1045-C10504/21/1986
5.750" Ø x 2.441" AISI C 1045 (Hot roll)3/27/1991
5.512" Ø x 2.165" ASTM A-521-76 (Forged)9/17/1991
Wedge hole angle:
Wedge hole diameter: 1.102"-1.122"
Strand hole diameter: 0.669"

BEARING PLATES

Bearing Plates Size Material Authorization Date
11 1/8"Square x 1 5/8" ASTM A-363/16/1979
11 1/8" Square x 1 1/2" ASTM A-361/18/1991
7.480 Ø x 4.921 (MPA) ASTM A-536 Gr 65-45-129/5/1991
Bearing hole diameter: 4.449"
Spiral size and turns: none

TRUMPETS

Trumpets Size Material Authorization Date
19" ASTM D1248 ABS 0.10"2/20/1981
17" ASTM D1248 - Polyethylene 0.08"5/8/1984
25" ASTM D1248 - Polyethylene 0.08"5/8/1984
13.980" ASTM D4976 - Hard Polyethylene9/5/1991

DUCTS

Ducts Size Material Authorization Date
2 7/8" O.D. 26 Gage3/16/1979

SPIRAL

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