123. FREYSSINET C AND K SYSTEMS ANCHORAGES

PAGE 1/3

PPC

123/

14-

02.95

Type 1

Type 2

q = 25 Ø + S

overall

q

1

= 16 Ø + S

overall

Ø/2 6Ø 6Ø

6Ø 6Ø

S

Ø/2

q = 25 Ø + S

Ø/2

q

1

= 16 Ø + S

7.5Ø

7.5Ø

S

Ø/2

K System: Anchorage A’ (Tromplate) - Unbonded strand

B

E

Ø 2
n =

Ø 3

E

A

Ø 4

D

1

Ø 1

Ø 3

a

H

1

pitch

Ø

Ø

F

b/4

b/2 one layer

3b/8 two layers

C

Ø 2
n =

123. FREYSSINET C AND K SYSTEMS ANCHORAGES

PAGE 2/3

K System

A

NCHORAGE

A’ (T

ROMPLATE

) / A

NCHORAGE

A (P

LATE

+ T

RUMPET

) - U

NBONDED STRAND

NOTE

(1) All the tromplates are relevant to types A’ or A used for external prestressing, with no sheath coupling steel tube, or internal HDPE trumpet.

(2) The helical or cross-wise bursting reinforcing bars given in the table, which oppose the bursting force in the concrete of the anchorage zone, are only valid for an isolated ancho-

rage in a prismatic section piece (test block), for concrete with a strength f

cmin

between 23 and 43 MPa (cylinder strength).

– When the anchorages are grouped into one of several lines, continuous reinforcement with an equivalent cross-sectional area must be provided to link all the anchorages, appro-

priately anchored within the structure.

(3) All the jacks given in the table correspond to optimal use.

Dimensions in mm

A’–7 K 13

A’–12 K 13

A’–19 K 13

A’–27 K 13

A’–37 K 13

A’–55 K 13

A’–4 K 15

A’–7 K 15

A’–12 K 15

A’–19 K 15

A’–27 K 15

A’–37 K 15

(1) A x B

170 x 170

235 x 220

260 x 260

315 x 315

450 x 400

495 x 495

(1) C

120

180

205

400

470

486

D

1

120

140

162

218

252

320

b

1

75

70

H

1

50

55

63

65

78

95

E

220

270

300

370

590

620

F

110

120

125

125

145

160

a (°)

10

10

10

10

30

30

Ø

1

190

254

300

352

440

440

Ø

2

12

12

12

16

20

20

n =

2

4

4

4

4

4

Ø

3

G 3/4’’

G 3/4’’

G 3/4’’

G 1’’

G 1’’1/2

G 1’’1/2

(2) Whorl Ø

10

12

14

16

18

20

Steel grade FeE 235

Number of convolutions

6

6

6

6

7

8

Ø

4 ext.

200

280

360

440

540

640

Pitch

50

50

60

65

70

70

Total length

300

300

360

390

490

560

(2) Type of cross-wise

1 or 2

1 or 2

1 or 2

1 or 2

1 or 2

1 or 2

bursting reinforcement

Number of layers

1

1

1

1

2

2

Ø of reinf. bars Steel grade FeE 235

10

12

14

16

14

16

b

160

200

240

300

360

400

s

100

120

150

170

210

240

q

1

350

420

500

570

560

640

q

2

260

312

374

426

434

496

(3) Jack

K 100+

K 200+

K 350+

K 500+

K 700+

K 1000+

or

or

or

or

Multistrand

K 100 BH

⊗

K 200 BH

⊗

K 350 BH

⊗

K 500 BH

⊗

Monostrand

M 23 180 BH

⊗

M 23 180 BH

⊗

M 23 180 BH

⊗

M 23 180 BH

⊗

M 23 180 BH

⊗

M 23 180 BH

⊗

Pull-in (mm)

K 13

+ = 6 to 9

+ = 6 to 9

+ = 6 to 9

+ = 6 to 9

+ = 6 to 9

+ = 6 to 9

⊗

= 4 to 6

⊗

= 4 to 6

⊗

= 4 to 6

K 15

+ = 6 to 11

+ = 6 to 11

+ = 6 to 11

+ = 6 to 11

+ = 6 to 11

+ = 6 to 11

⊗

= 4 to 8

⊗

= 4 to 8

⊗

= 4 to 8

⊗

= 4 to 8

ANCHORAGE

CACHETAGE - FIXING

HELIDAL BURSTING

REINFORCEMENT

CROSS-WISE BURSTING

REINFORCEMENT

TENSIONING

123. FREYSSINET C AND K SYSTEMS ANCHORAGES

PAGE 3/3

Type 1

Type 2

q = 25 Ø + S

overall

q

1

= 16 Ø + S

overall

Ø/2 6Ø 6Ø

6Ø

6Ø

S

q = 25 Ø + S

Ø/2

q

1

= 16 Ø + S

7.5Ø

7.5Ø

S

Ø/2

B

E

Ø 2
n =

Ø 1

E

A

Ø/2

K System: Anchorage A (Plate + Trumpet) - Unbonded strand

Ø 4

D

1

Ø 1

a

Ø

pitch

Ø 3

Ø

h

H

1

C

F

Ø 2

n =