REBAR CONNECTION SYSTEM

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1 REBAR CONNECTION SYSTEM alterations reserved Mar-17 Page 1

2 PRODUCTS RANGE COUPLERS PSA PSA-PSC TSE PSA-SS Page 7 Page 9 Page 9 Page 10 PSAD TSED PSAG TSEG Page 11 Page 12 Page 13 Page 14 PSAGGD PSA TRANSITION COUPLER PSA END COUPLER TSE END COUPLER Page 15 Page 16 Page 17 Page 17 KB-W Page 18 ACCESORIES KB KBL TSK/TWSK SN Page 18 Page 19 Page 20 Page 24 AP KU-02 KU-10 TPM Page 25 Page 26 Page 26 Page 28 alterations reserved Mar-17 Page 2

3 TABLE OF CONTENTS PRODUCTS RANGE... 2 INTRODUCTION... 4 THE MAIN APPLICATION OF TERWA REBAR CONNECTION SYSTEM... 5 PSA REINFORCEMENT COUPLER... 7 PSA PSC-BOLT REINFORCEMENT COUPLER... 9 TSE REINFORCEMENT COUPLER... 9 SPECIAL REINFORCEMENT COUPLERS PSA-SS REINFORCEMENT COUPLER PSA REINFORCEMENT COUPLER WITH PROTECTION DISK PSAD - DOUBLE REINFORCEMENT COUPLERS TSED REINFORCEMENT COUPLER PSAG - BENDED REINFORCEMENT COUPLERS PSA TRANSITION COUPLERS TERWA END COUPLERS KB-W THREAD WELDABLE COUPLER INSTRUCTIONS FOR INSTALLING KB-W WELDABLE COUPLER FIXING CONNECTOR KB FIXING CONNECTOR KBL TSK POSITION COUPLER TWSK POSITION COUPLER INSTRUCTIONS FOR INSTALLING TSK POSITION COUPLER INSTRUCTIONS FOR INSTALLING TWSK POSITION COUPLERS INSTRUCTIONS FOR INSTALLING TERWA REBAR COUPLERS DOUBLE THREAD SCREW PLUG SN REUSABLE PLASTIC COVER - AP WITHOUT THREAD PLASTIC NAILING PLATE KU PLASTIC NAILING PLATE KU PLASTIC NAILING PLATE KU-10 - LONG RADIUS STEEL MAGNETIC PLATE - TPM alterations reserved Mar-17 Page 3

4 INTRODUCTION Terwa Rebar Connection System is a durable connection of reinforcement. The traditional way to connect reinforcement steel was to overlap and weld the reinforcement together. Terwa Rebar Connection System is a simple and efficient method to connect the reinforcement steel which eliminates the disadvantages of the traditional procedure. Terwa Rebar Connection Systems are based on a modern technology, which consists in metric thread couplers. The design of the couplers allows a connection of the reinforcement steel, where the characteristics are equal with an uninterrupted bar because the full pulling force (or pressure force) is transmitted by dynamic load. The shape and the metric thread allow an easy mounting on the construction site or in the prefab factory by using standard tools. The characteristics and advantages of the Terwa Rebar Connection System are: - It is used for reinforcement steel with a diameter from 10 mm to 40 mm. - The full diameter or cross-section of the bar can be used. - Full connection of the reinforcement. - Suited for dynamic loads. - Elongation below 0.1 mm. - Additional preparation for the reinforcement steel is not necessary. - Suitable for all types of reinforcement steel according to the European and American norms. - The couplers are designed for reinforcement steel B500B EN with a yield strength 500 MPa and a tensile strength 550 MPa. - The shape, height and the type of the ribs of the reinforcement steel have no influence on the connection. - Because the outside diameter has minimal dimension a better concrete cover is generated and a concentration of reinforcement steel can be prevented. - The contact surfaces of the couplers exclude the usage of lock-nuts. - Every diameter and length of the reinforcement steel, straight or bended, can be fitted with a coupler and can be easily connected. Installation: - It is no need for a nut-wrench to tighten the coupling. It has to be used a pipe-wrench or a torque wrench for the couplers tightening and to prevent the thread movement. - Special tools, power sources or special training of the personnel are not necessary. - The metric thread and the way of connection allow a fast and easy control of the connection. - The erection time is reduced to minimum. Characteristics: - The couplers are delivered standard galvanized. - There is variant in which the pressing coupler is made of stainless steel. Terwa Rebar Connection System is composed of: - Reinforcement steel B450C, B500B, B500C EN A sleeve with interior thread type PKB, pressed at one end. - Two sleeves with interior thread type PKB, pressed at both ends. - Stainless steel sleeves pressed at both ends. - Position coupler TSK. - Fixing connectors KB or KBL. - Accessories for fixing. alterations reserved Mar-17 Page 4

5 THE MAIN APPLICATION OF TERWA REBAR CONNECTION SYSTEM Figure 1. Wall Figure 2. Pylon Figure 3. Column Figure 4. Column and beam, column and slab, wall and slab Figure 5. Beam Figure 6. Future extension alterations reserved Mar-17 Page 5

6 Figure 7 Connection between slab - wall (column) slab (beam) Figure 8 Floor with temporary opening for crane, to be cast later. Figure 9 Rising column reinforcement. alterations reserved Mar-17 Page 6

7 PSA REINFORCEMENT COUPLER Table 1 PSA Description Product no. L MASS Figure 10 Thread Metric A Length d Reinforcement steel Tensile force Rated section [mm] [kg] [mm] [mm] [mm] [kn] [mm²] PSA 10 - M12 - L , ,25 78,5 PSA 10 - M12 - L , ,25 78,5 PSA 10 - M12 - L , ,25 78,5 PSA 12 - M16 - L , ,5 113 PSA 12 - M16 - L , ,5 113 PSA 12 - M16 - L , ,5 113 PSA 12 - M16 - L , ,5 113 PSA 12 - M16 - L , ,5 113 PSA 14 - M18 - L , PSA 14 - M18 - L , PSA 14 - M18 - L , PSA 14 - M18 - L , PSA 16 - M20 - L , ,5 201 PSA 16 - M20 - L , ,5 201 PSA 16 - M20 - L , ,5 201 PSA 16 - M20 - L , ,5 201 PSA 16 - M20 - L , ,5 201 PSA 16 - M20 - L , ,5 201 PSA 16 - M22 - L , ,5 201 PSA 18 - M22 - L , PSA 20 - M24 - L , PSA 20 - M24 - L , PSA 20 - M24 - L , PSA 20 - M24 - L , PSA 20 - M24 - L , PSA 20 - M24 - L , PSA 20 - M24 - L , PSA 20 - M24 - L , PSA 20 - M24 - L , PSA 22 - M27 - L , PSA 22 - M27 - L , PSA 25 - M30 - L , ,5 491 PSA 25 - M30 - L , ,5 491 alterations reserved Mar-17 Page 7

8 PSA Description Product no. L MASS Thread Metric A Length d Reinforcement steel Tensile force Rated section [mm] [kg] [mm] [mm] [mm] [kn] [mm²] PSA 25 - M30 - L , ,5 491 PSA 25 - M30 - L , ,5 491 PSA 25 - M30 - L , ,5 491 PSA 28 - M36 - L , ,6 615,3 PSA 28 - M36 - L , ,6 615,3 PSA 28 - M36 - L , ,6 615,3 PSA 28 - M36 - L , ,6 615,3 PSA 28 - M36 - L , ,6 615,3 PSA 28 - M36 - L , ,6 615,3 PSA 32 - M42 - L , ,9 803,8 PSA 32 - M42 - L , ,9 803,8 PSA 32 - M42 - L , ,9 803,8 PSA 32 - M42 - L , ,9 803,8 PSA 40 - M48 - L , PSA 40 - M48 - L , PSA 40 - M48 - L , PSA 40 - M48 - L , Table 2 PSA PKB Coupler Description Description Product no. D [mm] PSA 10 - M12 PKB 10 - M PSA 12 - M16 PKB 12 - M PSA 14 - M18 PKB 14 - M PSA 16 - M20 PKB 16 - M PSA 16 - M22 PKB 16 - M PSA 18 - M22 PKB 18 - M PSA 20 - M24 PKB 20 - M PSA 22 - M27 PKB 22 - M PSA 25 - M30 PKB 25 - M PSA 28 - M36 PKB 28 - M PSA 32 - M42 PKB 32 - M PSA 40 - M48 PKB 40 - M The reinforcement coupler PSA (Figure 10 table 1) is composed of a reinforcement steel and a sleeve PKB (table 2) with interior metric thread pressed at one end. In connection with a reinforcement coupler TSE the coupler PSA ensures an uninterrupted reinforcement for all types of precast concrete units. These couplers can be made at different dimensions as shown in the table 2. These reinforcement couplers can also be used to lift and move the precast concrete elements. The PKB couplers are made of steel 20CrMo5 or equivalent, electrolytic galvanized. These couplers are marked with the company logo and the thread type. The reinforcement steel is standard B500B EN On request the PKB couplers can be produced of stainless steel or 20CrMo5 hot zinc coating. Other length available on request: PSA diam. d x length (L) in mm. alterations reserved Mar-17 Page 8

PSA PSC-BOLT REINFORCEMENT COUPLER Figure 11 The reinforcement coupler PSA-PSC-BOLT (Figure 11 table 3) is composed of a reinforcement coupler PSA and a PSC metric bolt (table 3).

Other length available on request: PSA-PSC diam. d x length (L) in mm. The relevant dimensions for PSC-BOLT are shown in the following table. Table 3 PSA-PSC Description Description Product no.

9 PSA PSC-BOLT REINFORCEMENT COUPLER Figure 11 The reinforcement coupler PSA-PSC-BOLT (Figure 11 table 3) is composed of a reinforcement coupler PSA and a PSC metric bolt (table 3). Two PSA couplers and a threaded PSC bolt ensure the connection of two reinforcements for all types of precast concrete units. The PSC bolts are made of alloyed steel 34CrMo4 (W1.7220) or equivalent. Other length available on request: PSA-PSC diam. d x length (L) in mm. The relevant dimensions for PSC-BOLT are shown in the following table. Table 3 PSA-PSC Description Description Product no. PSC BOLT PSA 10 - M12 PSC BOLT M PSA 12 - M16 PSC BOLT M PSA 14 - M18 PSC BOLT M PSA 16 - M20 PSC BOLT M PSA 16 - M22 PSC BOLT M PSA 18 - M22 PSC BOLT M PSA 20 - M24 PSC BOLT M PSA 22 - M27 PSC BOLT M PSA 25 - M30 PSC BOLT M PSA 28 - M36 PSC BOLT M PSA 32 - M42 PSC BOLT M PSA 40 - M48 PSC BOLT M M [mm] L b [mm] TSE REINFORCEMENT COUPLER The reinforcement coupler TSE (Figure 12) is produced of reinforcement steel standard B500B EN 10080, forged at one end and then metric thread rolled (table 4): Figure 12 alterations reserved Mar-17 Page 9

Table 4 Description TSE Product no. d L MASS Tensile force Rated section Metric THREAD [mm] [mm] [kg] [kn] [mm²] [mm] TSE 12 - M16 - L 44704 12 200 0.20 56.

10 Table 4 Description TSE Product no. d L MASS Tensile force Rated section Metric THREAD [mm] [mm] [kg] [kn] [mm²] [mm] TSE 12 - M16 - L min 23 TSE 12 - M16 - L min 23 TSE 12 - M16 - L min 23 TSE 12 - M16 - L min 23 TSE 12 - M16 - L min 23 TSE 12 - M16 - L min 23 TSE 12 - M16 - L min 23 TSE 16 - M20 - L min 30 TSE 16 - M20 - L min 30 TSE 16 - M20 - L min 30 TSE 16 - M20 - L min 30 TSE 16 - M20 - L min 30 TSE 16 - M20 - L min 30 TSE 16 - M20 - L min 30 TSE 16 - M20 - L min 30 TSE 20 - M24 - L min 38 TSE 20 - M24 - L min 38 TSE 20 - M24 - L min 38 TSE 20 - M24 - L min 38 TSE 20 - M24 - L min 38 TSE 20 - M24 - L min 38 TSE 25 - M30 - L min 44 TSE 25 - M30 - L min 44 TSE 25 - M30 - L min 44 TSE 28 M36 - L min 48 TSE 28 M36 - L min 48 TSE 28 M36 - L min 48 TSE 28 M36 - L min 48 TSE 32 - M42 - L min 54 TSE 32 - M42 - L min 54 TSE 32 - M42 - L min 54 To connect with a reinforcement coupler PSA, the TSE coupler is screwed in PKB coupler on the entire length of thread. SPECIAL REINFORCEMENT COUPLERS PSA-SS REINFORCEMENT COUPLER The reinforcement coupler PSA-SS (Figure 13 table 5) is composed of a reinforcement coupler TSE and a stainless-steel KB bush (table 14). A Figure 13 Figure 14 alterations reserved Mar-17 Page 10

Table 5 Description PSA - SS Product no. L MASS Coupler Thread A D [mm] [kg] M [mm] [mm] PSA - SS - M16 - L 45823 400 0.46 16 27 22 PSA - SS - M16 - L 45824 600 0.

06 16 27 22 PSA - SS - M20 - L 45813 550 0.97 20 32 26 PSA - SS - M20 - L 45814 800 1.37 20 32 26 PSA - SS - M20 - L 45815 1050 1.76 20 32 26 PSA - SS - M20 - L 45816 1470 2.

11 Table 5 Description PSA - SS Product no. L MASS Coupler Thread A D [mm] [kg] M [mm] [mm] PSA - SS - M16 - L PSA - SS - M16 - L PSA - SS - M16 - L PSA - SS - M16 - L PSA - SS - M16 - L PSA - SS - M16 - L PSA - SS - M20 - L PSA - SS - M20 - L PSA - SS - M20 - L PSA - SS - M20 - L PSA - SS - M20 - L PSA - SS - M24 - L PSA - SS - M24 - L PSA - SS - M24 - L PSA - SS - M24 - L PSA - SS - M24 - L PSA - SS - M30 - L PSA - SS - M30 - L PSA - SS - M30 - L PSA REINFORCEMENT COUPLER WITH PROTECTION DISK Figure 15 The reinforcement coupler PSA-WITH PROTECTION DISK (Figure 15) is composed of a reinforcement coupler PSA and a stainless-steel disk pressed inside used to prevention of corrosion. PSAD - DOUBLE REINFORCEMENT COUPLERS Figure 16 alterations reserved Mar-17 Page 11

12 The double reinforcement coupler PSAD (Figure 16) is composed of reinforcement steel with two PKB couplers (table 2) pressed at both ends. The reinforcement steel is standard B500B EN and the PKB couplers are made of steel 20CrMo5 or equivalent, electrolytic galvanized. Other length available on request: PSAD diam. d x length (L) in mm. In the table 6 are presented some examples of these products. Table 6 PSAD Description L Mass d Reinforcement steel Length L-2A Tensile force Coupler Thread A D [mm] [kg] [mm] [mm] [kn] M [mm] [mm] PSAD 12 - M16 - L PSAD 12 - M16 - L PSAD 16 M20 - L PSAD 16 M20 - L PSAD 20 M24 - L PSAD 20 M24 - L PSAD 25 M30 - L PSAD 25 M30 - L PSAD 32 M42 - L PSAD 32 M42 - L TSED REINFORCEMENT COUPLER The reinforcement coupler TSED (Figure 17) is produced of reinforcement steel standard B500B EN 10080, forged at both end and then metric thread rolled (table 7): Table 7 TSED Description d L MASS Figure 17 Tensile force Rated section Metric THREAD [mm] [mm] [kg] [kn] [mm²] [mm] TSED 12 - M16 - L min 23 TSED 12 - M16 - L min 23 TSED 12 - M16 - L min 23 TSED 16 - M20 - L min 30 TSED 16 - M20 - L min 30 TSED 16 - M20 - L min 30 TSED 20 - M24 - L min 38 TSED 20 - M24 - L min 38 TSED 25 - M30 - L min 44 TSED 25 - M30 - L min 44 TSED 25 - M30 - L min 44 A alterations reserved Mar-17 Page 12

13 PSAG - BENDED REINFORCEMENT COUPLERS The bended reinforcement coupler PSAG (Figure 18) is composed of reinforcement steel bended with a PKB coupler (table 2) pressed at one end. Figure 18 In the table 8 are presented some examples of these products. Table 8 PSAG L A x L B Mass Description Reinforcement steel Couple d Length Tensile force Thread A D [mm] [kg] [mm] [mm] [kn] M [mm] [mm] PSAG 12 - M16-310/ x 600 0, , PSAG 12 - M16-600/ x 225 0, , PSAG 16 - M20-220/ x 600 1, , PSAG 16 - M / x 350 3, , PSAG 20 - M24-300/ x , PSAG 20 - M / x 850 5, PSAG 25 - M30-240/ x 240 1, , PSAG 25 - M30-420/ x 735 4, , PSAG 32 - M42-400/ x 500 6, , PSAG 32 - M / x , , The PSAG coupler, generally have the bend diameter D B = 10 x d, but this can be produced on request with D B = 15 x d or D B = 20 x d. Also other length L A and L B available on request: PSAG d x Length L A / L B in mm. For choosing dimensions L A and L B should take into account the minimum size according with the table 10. L A is the length measured from the front of coupler to the back of the reinforcing bar. The minimum dimensions for bending are presented in the following table. The diameter to which a bar is bent should be such as to avoid damage to the reinforcement and crushing of concrete inside the bend of the bar. According to Eurocode 2 minimum bending diameter should be: D Bmin = 4 x d for bar diameter d 16mm D Bmin = 7 x d for bar diameter d > 16mm Table 9 Reinforcing diameter d Thread L A min L B min Bending diameter D B min [mm] M [mm] [mm] [mm] 12 M M M M M x d 7 x d alterations reserved Mar-17 Page 13

14 The length for the bended reinforcement coupler can be calculated with the formula: L = L A + L B x, L = L A + L B +L A 2x x = (D B + 2d) y bending (table 10) for a single bend for double bend y is the length in bending area, x deduction of the bar length due to Table 10 x deduction of the bar length due to bending Bending diameter D B mm Reinforcing bar diameter d (mm) x d x d x d x d x d Bending angle = 90 PSAG d x L A /L B - TYPE 1 TSEG d x L A /L B - TYPE 1 Figure 19 Figure 20 Bending angle PSAG d x L A /L B TYPE 2 TSEG d x L A /L B TYPE 2 Figure 21 Figure 22 alterations reserved Mar-17 Page 14

15 Bending angle PSAG d x L A /L B TYPE 3 TSEG d x L A /L B TYPE 3 Figure 23 Figure 24 DOUBLE BENDED COUPLER PSAGGD TYPE 4 Figure 25 PSAGGD - d x L A / L B in mm An example for an order is shown in the table 11. An order for Rebar connections must include the following: Table 11 Reinforcing bar diameter d mm Thread M Rebar coupler type Bending form or 4 Bending angle L A L B Quantity 12 M16 PSAG Type M20 TSEG Type M20 TSEG Type M24 PSAGGD Type alterations reserved Mar-17 Page 15

PSA TRANSITION COUPLERS The reinforcement coupler PSA-T (Figure 26) is composed of a reinforcement steel and a sleeve special PKB (table 12) with interior metric thread pressed at one end.

16 PSA TRANSITION COUPLERS The reinforcement coupler PSA-T (Figure 26) is composed of a reinforcement steel and a sleeve special PKB (table 12) with interior metric thread pressed at one end. The connection is realized between two rebar with different diameter. The connection with a reinforcement coupler TSE or a PSC bolt and a PSA the coupler PSA-T ensures an uninterrupted reinforcement for all types of precast concrete units. Different length available on request: PSA-T diam. d1/d2 thread x length (L) in mm. Figure 26 Figure 27 Figure 28 Table 12 PSA-T Description Description PKB Coupler Product no. PSA-T 16/12 - M16 PKB 16/12 - M PSA-T 16/14 - M18 PKB 16/14 - M PSA-T 18/14 - M18 PKB 18/14 - M PSA-T 18/16 - M20 PKB 18/16 - M PSA-T 20/16 - M20 PKB 20/16 - M PSA-T 20/18 - M22 PKB 20/18 - M PSA-T 22/14 - M18 PKB 22/14 - M PSA-T 22/16 - M20 PKB 22/16 - M PSA-T 22/20 - M24 PKB 22/20 - M PSA-T 25/14 - M18 PKB 25/14 - M PSA-T 25/16 - M20 PKB 25/16 - M PSA-T 25/20 - M24 PKB 25/20 - M PSA-T 28/16 - M20 PKB 28/16 - M PSA-T 28/20 - M24 PKB 28/20 - M PSA-T 28/22 - M27 PKB 28/22 - M PSA-T 28/25 - M30 PKB 28/25 - M PSA-T 32/20 - M24 PKB 32/20 - M PSA-T 32/25 - M30 PKB 32/25 - M PSA-T 32/28 - M36 PKB 32/28 - M PSA-T 40/25 - M30 PKB 40/25 - M PSA-T 40/28 - M36 PKB 40/28 - M D [mm] PSA-T 40/32 - M42 PKB 40/32 - M alterations reserved Mar-17 Page 16

TERWA END COUPLERS The Terwa End Coupler represents an efficient alternative for the traditional connections roof-column, beam-column or

TERWA END COUPLER CLASSIC SOLUTION The traditional method consists in a hooked rebar anchorage The End Coupler it is highlighted by the next advantages:

lengths of anchorage which increase rebar congestion; Eliminate the hooks; More labor for the installation; Faster and simple installation; Longer time

lap length grow proportional with the reinforcement steel diameter); Lower safety on construction sites.

with PSA-PSC connection or with TSE connection.

17 TERWA END COUPLERS The Terwa End Coupler represents an efficient alternative for the traditional connections roof-column, beam-column or foundation-column. TERWA END COUPLER CLASSIC SOLUTION The traditional method consists in a hooked rebar anchorage The End Coupler it is highlighted by the next advantages: who comes with a series of disadvantages: Minimize the length of the rebar and reduce the congestion inside the concrete element; Requires longer lengths of anchorage which increase rebar congestion; Eliminate the hooks; More labor for the installation; Faster and simple installation; Longer time for execution; Simplifies the structural design; Hidden costs, especially for bigger diameters (the Better anchorage in the concrete element. lap length grow proportional with the reinforcement steel diameter); Lower safety on construction sites. Column Connection Figure 29 Figure 30 Foundation Connection Figure 31 Figure 32 Terwa End Coupler consists in a threaded round steel plate which fits with PSA-PSC connection or with TSE connection. Terwa End Couplers meets the ACI 318 and Eurocode 2 regarding the embedding lengths for reinforcement steel. The End Coupler is designed and tested to assure a good embedding in concrete having a contact area equal with 9 times the rebar cross section area, or a minimum diameter 3 times the rebar diameter. PSA END COUPLER TSE END COUPLER Figure 33 Figure 34 Terwa End Couplers are available electrolytic galvanized or without coating. alterations reserved Mar-17 Page 17

Table 13 End Coupler Electrolytic galvanised EV Product no. Without coating Thread Thickness A D Rebar diameter (d) Weight Metric [mm] [mm] [mm] [kg/pc] End coupler M12 61614 61556 M12 10 38 10 0.

18 Table 13 End Coupler Electrolytic galvanised EV Product no. Without coating Thread Thickness A D Rebar diameter (d) Weight Metric [mm] [mm] [mm] [kg/pc] End coupler M M End coupler M M End coupler M M End coupler M M End coupler M M End coupler M M End coupler M M End coupler M M KB-W THREAD WELDABLE COUPLER KB-W is a KB bush used to connect reinforcing bars to structural steel plates or sections. The KB-W bush has a thread at one end. The other end is welded directly to the structural steel. The KB-W couplers are made of steel S355 or equivalent. The type and size of weld must be determined by the designer. Welders should be qualified for the type of weld required. Figure 35 Figure 36 Table 14 KB-W Weldable Coupler Product no. Thread L D A Weight Metric [mm] [mm] [mm] [kg/pc] KB-W M M KB-W M M KB-W M M KB-W M M KB-W M M KB-W M M KB-W M M KB-W M M alterations reserved Mar-17 Page 18

INSTRUCTIONS FOR INSTALLING KB-W WELDABLE COUPLER

Picture 37 Position the TSE bar into the coupler.

19 INSTRUCTIONS FOR INSTALLING KB-W WELDABLE COUPLER Weld the KB-W coupler to the steel structure. Picture 37 Position the TSE bar into the coupler. Picture 38 Rotate the TSE bar into the KB-W coupler until tight. Picture 39 To ensure the quality of connection tight the TSE bar with a wrench. The necessary torque for each type of rebar is shown in the table 21. Picture 40 alterations reserved Mar-17 Page 19

FIXING CONNECTOR KB Fixing connectors KB (Figure 41) are manufactured of steel S355JO galvanized (EV), hot dipped galvanized (TV) or of stainless steel 304 / W 1.4301 (SS2) or W 1.

015 KB M10x30-EV 45523 - - 10 30 14 0.023 KB M12x36-EV 45662 KB M12x36-TV 45679 12 36 16 0.033 KB M16x48-EV 45668 KB M16x48-TV 45678 16 48 22 0.085 KB M16x45-EV 45902 KB M16x45-TV 45905 16 45 22 0.

20 FIXING CONNECTOR KB Fixing connectors KB (Figure 41) are manufactured of steel S355JO galvanized (EV), hot dipped galvanized (TV) or of stainless steel 304 / W (SS2) or W AISI 316Ti (SS4). Table 15 Table 16 KB-EV Product no. KB-TV Product no. Thread Overall length D Weight M [mm] [mm] [kg/pc] KB M6x18-EV KB M8x25-EV KB M10x30-EV KB M12x36-EV KB M12x36-TV KB M16x48-EV KB M16x48-TV KB M16x45-EV KB M16x45-TV KB M20x55-EV KB M20x55-TV KB M20x60-EV KB M20x60-TV KB M24x72-EV KB M24x72-TV KB M30x90-EV KB M30x90-TV KB M36x110-EV KB M36X110-TV KB M42x126-EV KB M42x126-TV KB-SS2 (W ) Figure 41 Figure 42 Product no. KB-SS4 (W ) Product no. Thread Overall length D Weight M [mm] [mm] [kg/pc] KB M6x18-SS KB M6x18-SS KB M8x25-SS KB M8x25-SS KB M10x30-SS KB M10x30-SS KB M12x36-SS KB M12x36-SS KB M16x48-SS KB M16x48-SS KB M16x45-SS KB M16x45-SS KB M20x55-SS KB M20x55-SS KB M20x60-SS KB M20x60-SS KB M24x72-SS KB M24x72-SS KB M30x90-SS KB M30x90-SS KB M36x110-SS KB M36x110-SS KB M42x126-SS KB M42x126-SS alterations reserved Mar-17 Page 20

FIXING CONNECTOR KBL Figure 43 Figure 44 Fixing connectors KBL (Figure 43) are manufactured of steel S355JO (EN 10025) galvanized (EV) or of stainless

042 KBL M16x60-EV 45836 16 60 22 0.106 KBL M20x75-EV 45837 20 75 26 0.169 KBL M24x90-EV 45838 24 90 32 0.322 KBL M30x90-EV 45839 30 90 40 0.

081 KBL M16x60-SS4 45841 16 60 22 0.108 KBL M20x55-SS4 47669 20 55 26 0.127 KBL M20x75-SS4 45842 20 75 26 0.173 KBL M24x90-SS4 45843 24 90 32 0.

506 TSK POSITION COUPLER Figure 45 Figure 46 The position coupler TSK (Figure 45 table 19) is used to connect the reinforcement coupler PSA with one PSE,

21 FIXING CONNECTOR KBL Figure 43 Figure 44 Fixing connectors KBL (Figure 43) are manufactured of steel S355JO (EN 10025) galvanized (EV) or of stainless steel W AISI 316Ti (SS4). Table 17 Table 18 KBL-EV Product no. Thread Overall length D Weight M [mm] [mm] [kg/pc] KBL M12x45-EV KBL M16x60-EV KBL M20x75-EV KBL M24x90-EV KBL M30x90-EV KBL-SS4 (W1.4571) Product no. Thread Overall length D Weight M [mm] [mm] [kg/pc] KBL M12x45-SS KBL M16x45-SS KBL M16x60-SS KBL M20x55-SS KBL M20x75-SS KBL M24x90-SS KBL M30x90-SS TSK POSITION COUPLER Figure 45 Figure 46 The position coupler TSK (Figure 45 table 19) is used to connect the reinforcement coupler PSA with one PSE, TSE or PSEG which cannot be turned or in zone where the connecting space is limited. This coupler is also used for attaching prefab reinforcing cage with reinforcement already cast in concrete. The TSK coupler is delivered individually, in mounting state and is galvanized. alterations reserved Mar-17 Page 21

5 TSK M16 45301 12 16 16 90 13 48 22 TSK M18 45302 14 18 18 102 15 54 26 TSK M20 45303 16 20 20 112 16 60 27 TSK M22 45304 18 22 22 124 18 66 30 TSK M24 45305 20 24 24 134 19 72 34 TSK M27 45306 22

22 Table 19 Description TSK Product no. Reinforcement steel diameter THREAD COUPLER d M Length A L L 1 L 2 D [mm] [mm] [mm] [mm] [mm] [mm] TSK M TSK M TSK M TSK M TSK M TSK M TSK M TSK M TSK M TSK M TSK M TSK M TSK M TWSK POSITION COUPLER TWSK position couplers can be used in combination with the Terwa couplers, and are available for steel reinforcement bars with diameters ranging from 10 to 40 mm. It is a perfect solution for connecting two rebars when it is not possible to rotate one or both of the bars. They also provide a solution for the connection between the steel reinforcement carcass of the monolith and precast concrete elements. A TWSK position coupler consists of a threaded bolt (SK), two nuts to secure the system, and a threaded bush (BK). The couplers have CE marking, are being tested for certification, and are manufactured in accordance with technical standards. Table 20 Description Figure 47 Figure 48 TWSK Rebar diameter Thread Coupler Product no. d M Length A L L1 L2 D [mm] [mm] [mm] [mm] [mm] [mm] TWSK M TWSK M TWSK M TWSK M TWSK M TWSK M TWSK M TWSK M alterations reserved Mar-17 Page 22

INSTRUCTIONS FOR INSTALLING TSK POSITION COUPLER Screw the TSK position coupler in the PSA reinforcement coupler cast in concrete. Tight the TSK with a wrench.

23 INSTRUCTIONS FOR INSTALLING TSK POSITION COUPLER Screw the TSK position coupler in the PSA reinforcement coupler cast in concrete. Tight the TSK with a wrench. Figure 49 Arrange the exterior reinforcement coupler (PSEG or TSE), for coupling with TSK. Screw the threaded bush in the exterior reinforcement. Figure 50 To ensure the quality of connection tight the lock-nut with a wrench. Figure 51 alterations reserved Mar-17 Page 23

INSTRUCTIONS FOR INSTALLING TWSK POSITION COUPLERS Screw the TWSK position coupler onto the

Tighten the coupler with a wrench Figure 52 After the TWSK coupler has been fixed onto the PSA

Figure 53 Arrange the exterior reinforcement coupler (TSEG, TSE, or PSAG) for coupling with

24 INSTRUCTIONS FOR INSTALLING TWSK POSITION COUPLERS Screw the TWSK position coupler onto the PSA reinforcement coupler that is cast in concrete. Tighten the coupler with a wrench Figure 52 After the TWSK coupler has been fixed onto the PSA coupler, tighten the first locknut. Figure 53 Arrange the exterior reinforcement coupler (TSEG, TSE, or PSAG) for coupling with the TWSK coupler. Screw the threaded bush onto the reinforcement coupler. Figure 54 Tighten the locknut with a wrench to ensure the connection is secure. Figure 55 alterations reserved Mar-17 Page 24

INSTRUCTIONS FOR INSTALLING TERWA REBAR COUPLERS Place in and rotated the

Figure 56 Screw the threaded PSC bolt using an allen key.

Figure 58 Place and rotate by hands the second PSA coupler until the

Figure 59 The connection is finished by using a special torque wrench made

25 INSTRUCTIONS FOR INSTALLING TERWA REBAR COUPLERS Place in and rotated the threaded PSC BOLT onto the PSA coupler already embedded in concrete. Figure 56 Screw the threaded PSC bolt using an allen key. Figure 57 Use a special torque wrench made by TERWA to tighten the connection. The necessary torque for each type of rebar is shown in the table below. Figure 58 Place and rotate by hands the second PSA coupler until the couplers are fastened. Figure 59 The connection is finished by using a special torque wrench made by TERWA to tighten the connection. The connection must be sufficiently tight to prevent movement during concrete placement. The necessary torque for each type of rebar is shown in table 21. Figure 60 alterations reserved Mar-17 Page 25

Table 21 Reinforcement diameter [mm] Torque [Nm] Setting torque by wrench Mt [Nm] 10 50 60 12 60 60 14 70 60 16 80 60 18 90 70 20 100 75 22 110 82 25 125 93

standard length wrench Mt = Mn x LN/LP Figure 62 TERWA wrench dimensions DOUBLE THREAD SCREW PLUG SN Table 22 SN Product no.

45217 24 10 16 SN M30-M10 45218 30 10 16 SN M30-M8 46079 30 8 16 SN M36-M10 45219 36 10 25 SN M42-M10 45220 42 10 30 SN M48-M10 45464 48 10 36 SN M48-M12

26 Table 21 Reinforcement diameter [mm] Torque [Nm] Setting torque by wrench Mt [Nm] Figure 61 TERWA wrench Mn needed torque Mt Torque setting by wrench LP length until each middle reinforcement steel LN standard length wrench Mt = Mn x LN/LP Figure 62 TERWA wrench dimensions DOUBLE THREAD SCREW PLUG SN Table 22 SN Product no. Thread M1 Thread M2 Thickness H metric metric [mm] SN M12-M SN M16-M SN M20-M SN M24-M SN M24-M SN M30-M SN M30-M SN M36-M SN M42-M SN M48-M SN M48-M SN M48-M The SN screw plug is used to attach the PSA or PSAD reinforcement coupler to the formwork with a standard screw (Figure 63). alterations reserved Mar-17 Page 26

Figure 63 REUSABLE PLASTIC COVER - AP WITHOUT THREAD The Plastic Cover AP (Figure 64) prevents the entry of dirt and concrete water inside the bush in the thread zone of

0 10.0 9.5 AP-16 43618 16 19.0 13.6 11.2 AP-18 46697 18 20.6 14.7 12.7 AP-20 43579 20 22.2 17.7 12.7 AP-24 43620 24 27.3 21.2 12.3 AP-27 46698 27 29.3 23.4 17.

27 Figure 63 REUSABLE PLASTIC COVER - AP WITHOUT THREAD The Plastic Cover AP (Figure 64) prevents the entry of dirt and concrete water inside the bush in the thread zone of PSA or PSAD. This Plastic Cover is made from plastic material (PVC or LDPE). Table 23 AP Figure 64 Figure 65 Product no. Thread D d H M/MRd [mm] [mm] [mm] AP AP AP AP AP AP AP AP AP AP AP alterations reserved Mar-17 Page 27

PLASTIC NAILING PLATE KU-2 Table 24 KU-02 Figure 66 Figure 67 Product no. Thread Diam. Thickness Weight Colour M [mm] [mm] [kg/pc] KU-02-M10 47112 M10 50 2 Red RAL 3020 0.

28 PLASTIC NAILING PLATE KU-2 Table 24 KU-02 Figure 66 Figure 67 Product no. Thread Diam. Thickness Weight Colour M [mm] [mm] [kg/pc] KU-02-M M Red RAL KU-02-M M Red RAL KU-02-M M Dark grey RAL KU-02-M M Green RAL KU-02-M M Blue RAL The nailing plates KU-02 (Figure 66, table 24) are used for fixing the PSA or PSAD reinforcement coupler to the formwork with nails. These are suitable for fixing the PSA reinforcement coupler at the surface of the concrete units. PLASTIC NAILING PLATE KU-10 The nailing plates KU-10 (Figure 68 table 25) are used for fixing the PSA or PSAD reinforcement coupler with nails. The fixing flange ensures a minimal recess around the head of the PSA coupler. The recess is filled with fine concrete for protection against corrosion. Figure 68 Figure 69 Table 25 KU-10 Product no. Thread Diam. D Diam. d Thickness Weight Colour M [mm] [mm] [mm] [kg/pc] KU-10-M Red RAL KU-10-M Dark grey RAL KU-10-M Green RAL KU-10-M Blue RAL KU-10-M Light grey RAL alterations reserved Mar-17 Page 28

29 PLASTIC NAILING PLATE KU-10 - LONG RADIUS Figure 70 Figure 71 Table 26 Thread Diam. D Diam. d Thickness Weight KU-10-LR Product no. Colour M [mm] [mm] [mm] [kg/pc] KU-10-M12-PVC-LR M Red RAL KU-10-M16-PVC-LR M Dark grey RAL KU-10-M20-PVC-LR M Green RAL KU-10-M24-PVC-LR M Blue RAL KU-10-M30-PVC-LR M Light grey RAL KU-10-M36-PVC-LR M Orange RAL KU-10-M42-PVC-LR M Yellow RAL KU-10-M48-PVC-LR M White RAL KU-10-M52-PVC-LR M Black RAL The plastic nailing plates KU-02 and KU-10 are nailed to formwork (Figure 72). Using forming wax on the nailing plate makes it easier to remove and screw on anchor or fixing insert. The anchor must be fastened to the reinforcement by suitable means so that it does not move during concreting. After stripping, unscrew. Figure 72 alterations reserved Mar-17 Page 29

STEEL MAGNETIC PLATE - TPM The plates with magnets TPM (Figure 73 - table 27 are used for fixing the PSA or PSAD reinforcement coupler to the steel formwork.

The recess is filled with fine concrete for protection against corrosion. Figure 73 Figure 74 Table 27 Thread Diam. D Diam. d Thickness Weight TPM-10 Product no.

30 STEEL MAGNETIC PLATE - TPM The plates with magnets TPM (Figure 73 - table 27 are used for fixing the PSA or PSAD reinforcement coupler to the steel formwork. The fixing flange ensures a minimal recess around the PSA coupler. When using this magnetic recess former it is very important that the surface of the formwork is clean. The recess is filled with fine concrete for protection against corrosion. Figure 73 Figure 74 Table 27 Thread Diam. D Diam. d Thickness Weight TPM-10 Product no. M [mm] [mm] [mm] [kg/pc] TPM-10-M TPM-10-M TPM-10-M TPM-10-M TPM-10-M TPM-10-M TPM-10-M ALL SPECIFICATIONS CAN BE CHANGED WITHOUT PREVIOUS NOTICE. DISCLAIMER Terwa B.V. is not liable for deprivations to the products delivered by her caused by wear. Terwa B.V. is also not liable for damage caused by inaccurate and/or injudicious handling and use of the products delivered by her and/or use of these for purposes for which they are not produced. The responsibility of Terwa B.V. is furthermore limited in accordance to article 13 of the Metaalunie conditions, conditions which are applicable for all deliveries of Terwa B.V. alterations reserved Mar-17 Page 30

REBAR CONNECTION SYSTEM

REBAR CONNECTION SYSTEM WWW.TERWA.COM Terwa reserves the right to make changes to the documentation at any time Page 1 OVERVIEW COUPLERS PSA PSA-PSC PSC-BOLT PSE Page 6 Page 6 Page 8 Page 9 TSE PSA-SS