123. FREYSSINET C AND K SYSTEMS ANCHORAGES
K System: Anchorage A (Tromplate) - Unbonded strand
H1
C
pitch Ø
Ø 3
Ø 2
n =
Ø
F b/2 one layer b/4
3b/8 two layers
B
Type 1
Ø 2 Ø 3
n =
Ø/2 6Ø 6Ø S 6Ø 6Ø Ø/2
q = 25 Ø + S
Type 2
E
Ø/2 7.5Ø S 7.5Ø Ø/2
q1 = 16 Ø + S
PAGE 1/3
Ø 4
1
D
Ø 1
overall
q = 25 Ø + S
E
A
overall
1
q = 16 Ø + S
PPC 123/14-02.95
123. FREYSSINET C AND K SYSTEMS ANCHORAGES
K System
ANCHORAGE A (TROMPLATE) / ANCHORAGE A (PLATE + TRUMPET) - UNBONDED STRAND
A  7 K 13 A  12 K 13 A  19 K 13 A  27 K 13 A  37 K 13 A  55 K 13
Dimensions in mm
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
D1 120 140 162 218 252 320
b1 75 70
H1 50 55 63 65 78 95
E 220 270 300 370 590 620
F 110 120 125 125 145 160
(°) 10 10 10 10 30 30
Ø1 190 254 300 352 440 440
Ø2 12 12 12 16 20 20
n = 244444
Ø3 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
Ø4 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
q1 350 420 500 570 560 640
q2 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
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 fcmin 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.
PAGE 2/3
ANCHORAGE
CACHETAGE - FIXING
REINFORCEMENT
REINFORCEMENT
CROSS-WISE BURSTING
HELIDAL BURSTING
TENSIONING
123. FREYSSINET C AND K SYSTEMS ANCHORAGES
K System: Anchorage A (Plate + Trumpet) - Unbonded strand
Ø pitch
Ø 3
Ø
Ø 2
n =
h
H1
F C
Type 1
B
Ø 2
Ø 1
n =
Ø/2 6Ø 6Ø S 6Ø6Ø Ø/2
q = 25 Ø + S
Type 2
E
Ø/2 7.5Ø S 7.5Ø Ø/2
q1 = 16 Ø + S
PAGE 3/3
Ø 4
1
D
Ø 1
overall
q = 25 Ø + S
E
A
overall
1
q = 16 Ø + S