152. EXTERNAL PRESTRESSING: C-SYSTEM No.2
PAGE 1/2
PPC
152/
1-
02.95
a
pitch
Ø
Ø
Ø 3
H
2
G
A/2
A/2
A/2
C
Ø 4
n =
Ø 5
Ø 1
Ø 2
D
2
B
I
A
I
E
Ø 4
n =
F
Type 1
Type 2
q = (2n + 1) Ø + S
q = (2n + 1) Ø + S
Ø/2 nØ
S
nØ
Ø/2
Ø/2
nØ
S
nØ
Ø/2
152. EXTERNAL PRESTRESSING: C-SYSTEM No.2
PAGE 2/2
NOTE
(1) Two-level tromplate.
(2) Dimensions depending on the type of steel. The standard model corresponds to D2 and H2; the other models are only fabricated on special request.
(3) High density polyethylene (HDPE), ref. Afnor NF PF 114 Group 4, nominal pressure of 4 bar.
(4) Diameter prior to splaying.
(5) The theoretical quantities must be increased by 10 to 40% depending on the number of grouting phases.
(6) 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 strength f
cmin
between 20 and 40 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. Kindly refer to C System technical data.
– For concrete strength f
cmin
between 40 and 70 MPa (cylinder strength), kindly refer to C System technical data.
(7) The types of jack which are framed correspond to optimal use.
Dimensions in mm
(1) 3 C 15
(1) 4 C 15
7 C 15
13 C 15
19 C 15
25 C 15
31 C 15
37 C 15
55 C 15
A x B
150 x 110
150 x 120
180 x 150
250 x 210
300 x 250
360 x 300
385 x 320
420 x 350
510 x 420
C
120
125
186
246
256
400
346
466
516
(2) D
2
85
95
110
160
185
230
230
255
300
(2) H
2
50
50
55
70
80
95
105
110
145
(3) Ø
1 ext.
x e
60 x 3.00
75 x 3.00
90 x 3.00
110 x 3.40
125 x 3.90
140 x 4.30
160 x 4.90
160 x 4.90
200 x 6.20
Ø
2 ext.
x e
(4)
(4)
72 x 2.00
82.50 x 2.50 82.50 x 2.50 114.30 x 2.75
133 x 3.00
152.40 x 3.00 168.30 x 3.20 168.30 x 3.20 219.10 x 6.30
(5) Cement (kg/m)
2.70
4.05
5.70
7.50
9.00
10.80
14.70
12.45
20.55
Grout (l/m)
1.8
2.7
3.8
5.0
6.0
7.2
9.8
8.3
13.7
Ø
3
G 3/4’’
G 3/4’’
G 3/4’’
G 1’’
G 1’’1/4
G 1’’1/2
G 1’’1/2
G 1’’1/2
G 1’’1/2
E x F
200 x 170
200 x 180
230 x 210
300 x 270
350 x 310
410 x 360
435 x 380
470 x 410
560 x 480
G
120
125
125
150
160
170
180
195
230
a (°)
10
10
10
10
10
10
10
10
10
I
91
101
128
168
208
268
268
300
370
Ø
4
10
10
12
12
12
16
16
16
20
n =
2
2
2
4
4
4
4
4
4
(6) Spiral Ø Steel grade FeE 235
8 10
12
14
16
20
20
20
25
Number of turns
5
5
6
7
7
7
8
9
9
Ø
5 ext.
160
180
220
320
400
450
500
550
650
Pitch
50
60
60
70
70
80
80
90
100
Total length
250
300
360
490
490
560
640
810
900
(6) Type of cross-wise
1
1
1
1
1
1
2
2
2
bursting reinforcement
Ø of grade FeE 235 or
8
8
10
14
16
20
20
20
25
FeE 400 reinforcing bars
n’ =
4
4.5
5.5
5
6
6
6
6.5
7
s
100
100
120
180
195
220
270
300
335
q
170
180
240
340
410
480
530
580
710
Number of layers
3
3
3
3
3
3
3
3
3
(7) Jack
K 100 C
K 100 C
C 350 F
C 350 F
C 500 F
C 1 000 F
C 1 000 F
C 1 000 F
C 1 500 F
K 200 C
K 350 C
K 500 C
K 700 C
K 700 C
K 1 000 C
C 100 F
C 100 F
C 500 F
C 500 F
C 1 000 F
K 1 000 C
K 1 000 C
C 1 500 F
Multistrand
K 350 C
K 500 C
K 700 C
K 500 C
K 1 000 C
Monostrand
M 23 180
M 23 180
M 23 180
M 23 180
M 23 180
M 23 180
M 23 180
M 23 180
M 23 180
BH
BH
BH
BH
BH
BH
BH
BH
BH
Pull-in
4 to 8
4 to 8
4 to 8
4 to 8
4 to 8
4 to 8
4 to 8
4 to 8
4 to 8
(mm)
ANCHORAGE
DUCT - GROUTING
CACHETAGE - FIXING
HELICAL BURSTING
REINFORCEMENT
CROSS-WISE BURSTING
REINFORCEMENT
TENSIONING