123. FREYSSINET C AND K SYSTEMS ANCHORAGES K System: NB Anchorage (Tromplate) H1 C Ø 4 pitch F b/2 one layer b/4 3 b/8 two layers B Type 1 Ø/2 6Ø 6Ø S 6Ø 6Ø Ø/2 q = 25 Ø + S Type 2 Ø/2 7.5Ø S 7.5Ø Ø/2 q1 = 16 Ø + S PAGE 1/3 Ø 5 1 D Ø 1 A x B overall q = 25 Ø + S A overall 1 q = 16 Ø + S PPC 123/18-02.95 Ø2 x l 2 Ø3 x l 3 123. FREYSSINET C AND K SYSTEMS ANCHORAGES K System NB ANCHORAGE (TROMPLATE) / NB ANCHORAGE (PLATE + TRUMPET) NB 7 K 13 NB 12 K 13 NB 19 K 13 NB 27 K 13 NB 37 K 13 NB 55 K 13 Dimensions in mm NB 4 K 15 NB 7 K 15 NB 12 K 15 NB 19 K 15 NB 27 K 15 NB 37 K 15 A x B 170 x 170 235 x 220 260 x 260 315 x 315 450 x 400 495 x 495 C 120 180 205 400 470 486 D1 120 140 162 218 252 320 H1 50 55 63 65 78 95 E 75 70 (1) Ø1 int. x e Class 1 55 x 0.30 65 x 0.30 80 x 0.35 100 x 0.40 120 x 0.60 130 x 0.60 (1) Ø1 int. x e Class 2 55 x 0.45 65 x 0.45 80 x 0.50 100 x 0.60 120 x 0.60 130 x 0.60 F 185 175 170 280 230 245 K 13 Ø2 x l 28 x 66 28 x 66 28 x 66 28 x 66 28 x 66 28 x 66 2 K 15 Ø3 x l 32 x 66 32 x 66 32 x 66 32 x 66 32 x 66 32 x 66 3 (2) Whorl Ø4 10 12 14 16 18 20 Steel grade FeE 235 Number of convolutions 6 6 6 6 7 8 Ø5 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 bursting reinf. 1 or 2 1 or 2 1 or 2 1 or 2 1 or 2 1 or 2 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 NOTE (1) According to standard EN 523. (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. PAGE 2/3 MISCELLANEOUS ANCHORAGE REINFORCEMENT SLEEVE HELICAL BURSTING THREADED REINFORCEMENT CROSS-WISE BURSTING 123. FREYSSINET C AND K SYSTEMS ANCHORAGES K System: NB Anchorage (Plate + Trumpet) Ø 4 pitch E H1 3 b/8 b/4 F C B Type 1 Ø/2 6Ø 6Ø S 6Ø6Ø Ø/2 q = 25 Ø + S Type 2 Ø/2 7.5Ø S 7.5Ø Ø/2 q1 = 16 Ø + S PAGE 3/3 Ø 5 1 D Ø 1 A x B overall q = 25 Ø + S A overall 1 q = 16 Ø + S Ø2 x l 2 Ø3 x l 3