REBAR CONNECTION SYSTEM

Transcription

1 REBAR CONNECTION SYSTEM Terwa reserves the right to make changes to the documentation at any time Page 1

2 OVERVIEW COUPLERS PSA PSA-PSC PSC-BOLT PSE Page 6 Page 6 Page 8 Page 9 TSE PSA-SS PSAD TSED Page 10 Page 10 Page 11 Page 12 PSAG TSEG PSAGGD PSA-T TRANSITION COUPLER Page 12 Page 13 Page 14 Page 15 PSA END COUPLER TSE END COUPLER KB-W TWSK ACCESORIES Page 17 Page 17 Page 20 Page 22 KB KBL TERWA WRENCH SN Page 21 Page 21 Page 26 Page 27 AP KU-02 KU-10 TPM Page 27 Page 28 Page 28 Page 29 Terwa reserves the right to make changes to the documentation at any time Page 2

3 TABLE OF CONTENTS OVERVIEW... 2 INTRODUCTION... 4 CE MARKING... 5 PSA REINFORCEMENT COUPLER... 6 PSA-PSC REINFORCEMENT COUPLER... 7 PSC BOLTS... 8 PSE REINFORCEMENT COUPLER... 9 TSE REINFORCEMENT COUPLER SPECIAL REINFORCEMENT COUPLERS PSA-SS REINFORCEMENT COUPLER PSA REINFORCEMENT COUPLER WITH PROTECTION DISK PSAD - DOUBLE REINFORCEMENT COUPLERS TSED REINFORCEMENT COUPLER PSAG - BENT REINFORCEMENT COUPLERS DOUBLE BENT COUPLER PSAGGD PSA-T TRANSITION COUPLERS INSTRUCTIONS FOR INSTALLING COUPLER PSA-T TERWA END COUPLERS KB-W THREAD WELDABLE COUPLER INSTRUCTIONS FOR INSTALLING KB-W WELDABLE COUPLER FIXING CONNECTOR KB FIXING CONNECTOR KBL TWSK POSITION COUPLER INSTRUCTIONS FOR CONNECTING STRAIGHT OR BENT BARS WITH TWSK POSITION COUPLERS INSTRUCTIONS FOR INSTALLING TERWA REBAR COUPLER TERWA TORQUE WRENCH PLASTIC COVER - AP WITHOUT THREAD DOUBLE THREADED SCREW PLUG SN PLASTIC NAILING PLATE KU PLASTIC NAILING PLATE KU INSTRUCTIONS FOR INSTALLING KU STEEL MAGNETIC PLATE - TPM DISCLAIMER Terwa reserves the right to make changes to the documentation at any time Page 3

4 INTRODUCTION Terwa is a high quality, economical connection system of reinforcement. The Rebar Connection System is a simple, efficient method for connecting reinforcement steel, which eliminates the disadvantages of the traditional procedure of lapped joints. The lapped joints system may provide long-term consumption, greater rebar congestion and unsafe usage in seismic zones. The design of the couplers allows for a connection of the reinforcement steel in which the characteristics are equivalent to uninterrupted rebar, and the transfer of loads is made in the bar, not in the concrete as it is for lapped joints. The shape and the metric thread allow for easy mounting at the construction site or in the prefab factory using standard tools. The characteristics and advantages of the Terwa are: - 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. - Complete connection of the reinforcement. - Suitable for dynamic and seismic loads. - Slip value of the system under 0.1 mm. - Additional preparation of 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 B450C, B500B or B500C according to EN and BS 4449, 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. - Since the dimension of the outer diameter is minimal, a better concrete cover is generated, and reinforcement steel congestion can be prevented. - The contact surfaces of the couplers exclude the use of lock-nuts. - Every diameter and length of the reinforcement steel, straight or bent, can be fitted to a coupler and can be easily connected on site. Installation: - A nut-wrench is not required for tightening the coupling. A pipe-wrench or torque wrench has to be used to tighten the couplers and to prevent thread movement. - Special tools, power sources and special training of personnel are not required. - The metric thread and the connection method allow for fast, easy control of the connection. - Mounting time is reduced to a minimum. Characteristics: - The couplers are delivered in a standard, electrolytic galvanized version, thereby preventing rust. - At the client s request, the couplers can be made from stainless steel. Terwa consists of: - Reinforcement steel B450C, B500B or B500C according to EN and BS A sleeve with interior thread type PKB, pressed on one or both ends of the reinforcement steel. - Forged, threaded reinforcement steel, TSE coupler. - Position coupler TWSK. - Transition couplers, PSA-T. - Welding coupler KB-W. - Fixing connectors KB or KBL. - Accessories. Terwa reserves the right to make changes to the documentation at any time Page 4

5 Quality Terwa continuously controls the connection production process from the perspective of strength, dimensional and material quality and performs all of the required inspections for a superior quality system. All of the products are tracked from material acquisition to the final, ready to use product. Marking and traceability All systems have the CE marking and all data necessary for traceability, thread type and type of coating. Coupler testing Terwa rebar couplers are designed to ensure the full transfer of the load to the reinforcement steel and a slip value under 0.1 mm. Terwa periodically tests the system for this in the factory according to the European standards. CE MARKING CE marking means that a product is manufactured and inspected in accordance with a harmonized European standard (hen) or a European Technical Approval (ETA). ETA can be used as the basis for CE marking for cases in which there is no hen. However, ETA is voluntary, not required by EU directives or legislation. Manufacturers may use the CE marking to declare that their construction products meet harmonized European standards or have been granted ETA Approvals. These documents define properties the products must have to be granted the right to use the CE marking and describe how the manufacture of these products is supervised and tested. EU s Construction Products Regulation takes full effect on 1 July There are no harmonized EN standards for detailed building parts such as connections used in concrete constructions, excluding lifting items and devices, which are covered by the EU Machinery Directive. For steel constructions, CE marking will become mandatory as of 1 July 2014 as covered by the EU Construction Products Directive. Terwa reserves the right to make changes to the documentation at any time Page 5

6 PSA REINFORCEMENT COUPLER The PSA reinforcement coupler consists of reinforcement steel and a sleeve with interior metric thread pressed on one end. In connection with a reinforcement coupler TSE or PSA-PSC, the PSA coupler ensures uninterrupted reinforcement for all types of precast concrete units. These couplers can be made in various dimensions. The reinforcement couplers can also be used to lift and move the precast concrete elements. The PKB couplers are made of structural steel, electrolytic galvanized. These couplers are marked with the company logo and the thread type. The reinforcement steel is standard B500B or B500C according to EN and BS4449. On request, the PKB couplers can be manufactured in stainless steel or with hot zinc coating. PSA Bush diameter Bush length Rebar diameter Thread Description Product range no. D l d Metric A [mm] [mm] [mm] M [mm] PSA 10 - M12 - L PSA 12 - M16 - L PSA 14 - M18 - L PSA 16 - M20 - L PSA 18 - M22 - L PSA 20 - M24 - L PSA 22 - M27 - L PSA 25 - M30 - L PSA 28 - M36 - L PSA 32 - M42 - L PSA 40 - M48 - L Other lengths are available on request: PSA diam. d - thread x length (L) in mm. Terwa reserves the right to make changes to the documentation at any time Page 6

7 PSA-PSC REINFORCEMENT COUPLER The PSA-PSC reinforcement coupler consists of a PSA reinforcement coupler and a PSC metric bolt threaded inside the PSA. 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. The relevant dimensions for PSC-BOLT are shown in the following table. Description PSA-PSC Product no. D l d M L b [mm] [mm] [mm] [mm] [mm] PSA-PSC 10 - M PSA-PSC 12 - M PSA-PSC 14 - M PSA-PSC 16 - M PSA-PSC 18 - M PSA-PSC 20 - M PSA-PSC 22 - M PSA-PSC 25 - M PSA-PSC 28 - M PSA-PSC 32 - M PSA-PSC 40 - M Other lengths are available on request: PSA-PSC diam. d x length (L) in mm. Terwa reserves the right to make changes to the documentation at any time Page 7

8 PSC BOLTS PSC bolt ensure the connection between two PSA or other rebar coupler. Together with the PSA is creating the male part of the connection. For more details please see the page 7 and for mounting instruction, page 24. The PSC bolts are made of alloyed steel 34CrMo4 (W1.7220) or equivalent. Description PSC Product no. Dimensions PSC - M PSC - M PSC - M PSC - M PSC - M PSC - M PSC - M PSC - M PSC - M PSC - M PSC - M M [mm] L b [mm] Terwa reserves the right to make changes to the documentation at any time Page 8

9 PSE REINFORCEMENT COUPLER The PSE reinforcement coupler consists of reinforcement steel and a sleeve with exterior metric thread pressed on one end. In connection with a reinforcement coupler PSA or PSAG, the PSE coupler ensures uninterrupted reinforcement for all types of precast concrete units. These couplers can be made in various dimensions. The PEB couplers are made of structural steel, electrolytic galvanized. These couplers are marked with the company logo and the thread type. The reinforcement steel is standard B500B or B500C according to EN and BS4449. PSE Bush diameter Bush length Rebar diameter Thread Description Product range no. D l d Metric A [mm] [mm] [mm] M [mm] PSE 10 - M12 - L PSE 12 - M16 - L PSE 14 - M18 - L PSE 16 - M20 - L PSE 18 - M22 - L PSE 20 - M24 - L PSE 22 - M27 - L PSE 25 - M30 - L PSE 28 - M36 - L PSE 32 - M42 - L PSE 40 - M48 - L Other lengths are available on request: PSE diam. d - thread x length (L) in mm. Terwa reserves the right to make changes to the documentation at any time Page 9

10 TSE REINFORCEMENT COUPLER The TSE reinforcement coupler is made of reinforcement steel standard B450C, B500B or B500C according to EN and BS4449, forged at one end and then metric thread rolled. The end diameter is enlarged more than the rebar diameter to increase the strength of the thread for tensile and shear loads. Description TSE Product range no. d Metric THREAD TSE 12 - M16 - L min 23 TSE 16 - M20 - L min 30 TSE 20 - M24 - L min 38 TSE 25 - M30 - L min 44 TSE 28 M36 - L min 48 TSE 32 - M42 - L min 54 To connect with a PSA reinforcement coupler, the TSE coupler is screwed in coupler PKB the entire length of the thread. Other lengths are available on request: TSE diam. d thread x length (L) in mm. SPECIAL REINFORCEMENT COUPLERS PSA-SS REINFORCEMENT COUPLER The PSA-SS reinforcement coupler consists of a TSE reinforcement coupler and a stainless-steel KB bush. [mm] A [mm] Description PSA - SS Product no. Coupler Thread A D M [mm] [mm] PSA - SS - M16 - L PSA - SS - M20 - L PSA - SS - M24 - L PSA - SS - M30 - L Terwa reserves the right to make changes to the documentation at any time Page 10

11 PSA REINFORCEMENT COUPLER WITH PROTECTION DISK Reinforcement coupler PSA-WITH PROTECTION DISK consists of a PSA reinforcement coupler and a stainless-steel disk pressed inside to prevent corrosion. Description PSA - St sheet Product no. Coupler Thread A D M [mm] [mm] PSA - St sheet 16 - M20 - L PSA - St sheet 20 - M27 - L PSA - St sheet 22 - M30 - L PSA - St sheet 28 - M36 - L Other lengths are available on request: PSA-St sheet diam. d - thread x length (L) in mm. PSAD - DOUBLE REINFORCEMENT COUPLERS The PSAD double reinforcement coupler consists of reinforcement steel with two sleeves pressed on both ends. The reinforcement steel is standard B450C, B500B or B500C according to EN and BS4449. The table presents a number of examples of these products. PSAD Bush diameter Bush length Rebar diameter Thread Description Product range no. D l d Metric A [mm] [mm] [mm] [mm] [mm] PSAD 10 - M12 - L PSAD 12 - M16 - L PSAD 14 - M18 - L PSAD 16 M20 - L PSAD 20 M24 - L PSAD 25 M30 - L PSAD 28 M36 - L PSAD 32 M42 - L Other lengths are available on request: PSAD diam. d - thread x length (L) in mm. Terwa reserves the right to make changes to the documentation at any time Page 11

12 TSED REINFORCEMENT COUPLER The TSED reinforcement coupler is made of reinforcement steel standard B450C, B500B or B500C according to EN and BS4449, forged at both ends and then metric thread rolled. TSED THREAD d Metric A Description Product range no. [mm] [mm] TSED 12 - M16 - L min 23 TSED 16 - M20 - L min 30 TSED 20 - M24 - L min 38 TSED 25 - M30 - L min 44 TSED 32 - M42 - L min 54 PSAG - BENT REINFORCEMENT COUPLERS The bent PSAG reinforcement coupler consists of reinforcement steel bent with a sleeve pressed on one end. Description PSAG Bush diameter Bush length Rebar diameter Thread Product range no. D l d Metric A [mm] [mm] [mm] [mm] [mm] PSAG 10 - M12 L1xL PSAG 12 - M16 - L1xL PSAG 16 M20 - L1xL PSAG 20 M24 - L1xL PSAG 25 M30 - L1xL PSAG 28 M36 - L1xL PSAG 32 M42 - L1xL The PSAG coupler generally has bend diameter D B= 10 x d, but on request it can be manufactured at D B= 15 x d or D B= 20 x d. Other lengths L 1 and L 2 are also available on request: PSAG d x Length L 1x L 2 in mm. When choosing dimensions L 1 and L 2 Terwa reserves the right to make changes to the documentation at any time Page 12

13 the minimum size according to the table below should be taken into account. L 1 is the length measured from the front of the 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 that damage to the reinforcement and crushing of concrete inside the bend of the bar are avoided. According to Eurocode 2, minimum bend diameter should be: D Bmin = 4 x d for bar diameter d 16mm D Bmin = 7 x d for bar diameter d > 16mm Reinforcing diameter d Thread L 1 min L 2min Bend diameter D B min [mm] M [mm] [mm] [mm] 12 M M M M M x d 7 x d The length for the bent reinforcement coupler can be calculated using the formula: L = L 1 + L 2 x, L = L 1 + L 2 +L 1 2x x = (D B + 2d) y for a single bend for double bends y is the length in the bending area, x reduction of the bar length due to bending x Reinforcing bar diameter d (mm) reduction of the bar length due to bending x d Bend diameter D B mm 7 x d x d x d x d Bending angle = 90 PSAG d x L 1 x L 2 - TYPE 1 TSEG d x L 1 x L 2 - TYPE 1 Bending angle PSAG d x L 1 x L 2 TYPE 2 TSEG d x L 1 x L 2 TYPE 2 Terwa reserves the right to make changes to the documentation at any time Page 13

14 Bending angle PSAG d x L 1 x L 2 TYPE 3 TSEG d x L 1 x L 2 TYPE 3 DOUBLE BENT COUPLER PSAGGD Other lengths are available on request PSAGGD d x L 1 x L 2 in mm An example of an order is presented in the table below. An order for Rebar connections must include the following: Reinforcing bar diameter Thread Rebar Bending form Bending d M coupler type or 4 angle L 1 L 2 Quantity mm 12 M16 PSAG Type M20 TSEG Type M20 TSEG Type M24 PSAGGD Type Terwa reserves the right to make changes to the documentation at any time Page 14

15 PSA-T TRANSITION COUPLERS The PSA-T reinforcement coupler consists of reinforcement steel and a special sleeve with interior metric thread pressed on one end. The connection is realized between two rebar with different diameters: the second rebar can be rotated and its axial direction is not restricted. For the connection with a TSE reinforcement coupler or a PSC bolt and a PSA, the PSA-T coupler ensures uninterrupted reinforcement for all types of precast concrete units. Other lengths are available on request: PSA-T diam. d1/d2 thread x length (L) in mm. PSA-T Rebar diameter Sleeve dimensions Description Product range no. First rebar d1 Second rebar d2 D l 1 A [mm] [mm] [mm] [mm] [mm] PSA-T 16/12 - M16 - L PSA-T 16/14 - M18 - L PSA-T 18/14 - M18 - L PSA-T 18/16 - M20 - L PSA-T 20/16 - M20 - L PSA-T 20/18 - M22 - L PSA-T 22/14 - M18 - L PSA-T 22/16 - M20 - L PSA-T 22/20 - M24 - L PSA-T 25/14 - M18 - L PSA-T 25/16 - M20 - L PSA-T 25/20 - M24 - L PSA-T 28/16 - M20 - L PSA-T 28/20 - M24 - L PSA-T 28/22 - M27 - L PSA-T 28/25 - M30 - L PSA-T 32/20 - M24 - L PSA-T 32/25 - M30 - L PSA-T 32/28 - M36 - L PSA-T 40/25 - M30 - L PSA-T 40/28 - M36 - L PSA-T 40/32 - M42 - L INSTRUCTIONS FOR INSTALLING COUPLER PSA-T Terwa reserves the right to make changes to the documentation at any time Page 15

16 Place and rotate the TSE or PSA-PSC coupler in the PSA- T coupler. Finish the connection using a special TERWA torque wrench 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 the table on page 26. PSA-T TSE connection PSA-T PSA-PSC connection PSA-T PSE connection Terwa reserves the right to make changes to the documentation at any time Page 16

17 TERWA END COUPLERS The Terwa End Coupler represents an efficient alternative to the traditional connections roof-column, beam-column or foundation-column. TERWA END COUPLER CLASSIC SOLUTION The traditional method consists of a hooked rebar anchorage The End Coupler features the following advantages: which has a series of disadvantages: Minimizes the length of the rebar and reduces the congestion inside the concrete element. Requires longer lengths of anchorage, which increases rebar congestion. Eliminates the hooks. Installation is more labour intensive. Faster, simpler installation. Execution time is longer. Simplifies the structural design. Hidden costs, especially for larger diameters (the Better anchorage in the concrete element. lap length grows proportionately to the reinforcement steel diameter). Decreased safety at construction sites. Column Connection Foundation Connection Terwa End Coupler consists of a threaded round steel plate, which fits the PSA-PSC connection or the TSE connection. Terwa End Couplers meet the ACI 318 and Eurocode 2 concerning the embedding lengths for reinforcement steel. The End Coupler is designed and tested to ensure proper embedding in concrete, having a contact area equal to 9 times the rebar cross section area, or a minimum diameter 3 times the rebar diameter. Terwa reserves the right to make changes to the documentation at any time Page 17

18 Beam Column Connection PSA END COUPLER TSE END COUPLER Terwa End Couplers are available electrolytic galvanized or without coating. 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 Terwa reserves the right to make changes to the documentation at any time Page 18

19 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 designer must determine the type and size of weld. Welders should be qualified for the type of weld required. 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 Terwa reserves the right to make changes to the documentation at any time Page 19

20 INSTRUCTIONS FOR INSTALLING KB-W WELDABLE COUPLER CONNECTION WITH REINFORCEMENT COUPLER TSE Weld the KB-W coupler to the steel structure. Position the TSE bar in the coupler. Rotate the TSE bar in the KB-W coupler until tight. To ensure the quality of connection, tighten the TSE bar with a wrench. The necessary torque for each type of rebar is shown in the table on page 26. CONNECTION WITH PSA-PSC REINFORCEMENT COUPLER Weld the KB-W coupler to the steel structure. Position the PSA-PSC bar in the coupler. Rotate the PSA-PSC bar in the KB-W coupler until tight. To ensure the quality of connection, tighten the PSA-PSC bar with a wrench. The necessary torque for each type of rebar is shown in the table on page 26. Terwa reserves the right to make changes to the documentation at any time Page 20

21 FIXING CONNECTOR KB Fixing connectors KB are manufactured in steel S355JO galvanized (EV), hot dipped galvanized (TV) or in stainless steel 304 / W (SS2) or W AISI 316Ti (SS4). KB Zinc galvanizing Product number Hot dipped galvanized Stainless steel SS4 Stainless steel SS2 Thread Overall length L D Weight M [mm] [mm] [kg/pc] KB M12x KB M16x KB M16x KB M20x KB M20x KB M24x KB M30x KB M36x KB M42x FIXING CONNECTOR KBL Fixing connectors KBL are manufactured in steel S355JO (EN 10025) galvanized (EV) or stainless-steel W AISI 316Ti (SS4). KBL Zinc galvanizing Product number Thread Overall length L D Weight Stainless steel SS4 M [mm] [mm] [kg/pc] KBL M12x KBL M16x KBL M16x KBL M20x KBL M20x KBL M24x KBL M30x Terwa reserves the right to make changes to the documentation at any time Page 21

22 TWSK POSITION COUPLER TWSK position couplers can be used in combination with the Terwa couplers and are available for steel reinforcing bars with diameters ranging from 10 to 40 mm. This is the 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 the CE marking, are tested for certification and are manufactured in accordance with technical standards. TWSK Rebar diameter Thread Coupler Product d M Length A L L1 L2 D Description no. [mm] [mm] [mm] [mm] [mm] [mm] TWSK M TWSK M TWSK M TWSK M TWSK M TWSK M TWSK M TWSK M INSTRUCTIONS FOR CONNECTING STRAIGHT OR BENT BARS WITH TWSK POSITION COUPLERS - First bar cannot move axially or rotate - Second bar can move only axially Screw the TWSK position coupler 2 onto the PSA reinforcement coupler 1 that is cast in concrete. Tighten the coupler with a wrench Terwa reserves the right to make changes to the documentation at any time Page 22

23 After the TWSK coupler 2has been fixed onto the first PSA coupler 1, tighten the first locknut. Arrange the second reinforcement coupler 3 (TSEG, TSE, or PSAG, PSA-PSC) for coupling with the TWSK coupler 2. Screw the threaded bush into the reinforcement coupler. Tighten the locknut with a wrench to ensure that the connection is secure. 1. Remove nailing plate from coupler PSA in the concrete element 2. Hand-tighten the threaded bar in coupler PSA. Tighten first nut of TWSK against coupler PSA. 3. Align the thread of coupler PSA-PSC. Turn the TWSK bush. 4. Tighten the second nut against the TWSK bush. The necessary torque for each type of rebar is shown on page 26. Terwa reserves the right to make changes to the documentation at any time Page 23

24 INSTRUCTIONS FOR INSTALLING TERWA REBAR COUPLER INSTALL PSA COUPLER AND CONNECT TO COUPLER PSA-PSC Place and rotate the threaded PSC BOLT in the second PSA coupler. Screw the threaded PSC bolt using an Allen key. Place and rotate the second PSA coupler manually until the couplers are fastened. Finish the connection using a special TERWA torque wrench 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 the table on page 26. INSTALL COUPLER PSA AND CONNECT TO COUPLER TSE Place and rotate the TSE coupler manually until the couplers are fastened. Finish the connection using a special TERWA torque wrench 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 on page 26. Terwa reserves the right to make changes to the documentation at any time Page 24

25 INSTALL PSA COUPLER AND CONNECT TO COUPLER PSA-PSE Place and rotate the PSE coupler manually until the couplers are fastened. Finish the connection using a special TERWA torque wrench 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 the table on page 26. Terwa reserves the right to make changes to the documentation at any time Page 25

26 TERWA TORQUE WRENCH The Terwa Torque wrench is specially designed for correctly mounting the Terwa coupler on site and at the factories. All Terwa wrenches are delivered with a calibration report and work instructions. The torque values for all rebar diameters are marked on the wrench. The torque values for all Terwa couplers are listed below. Reinforcement diameter [mm] Necessary Torque for each type of rebar [Nm] Setting torque using wrench Mt [Nm] TERWA torque wrench Mn required torque Mt setting torque using wrench LP length to middle of each reinforcement steel LN standard length wrench Mt = Mn x LN/LP TERWA wrench dimensions Terwa reserves the right to make changes to the documentation at any time Page 26

27 PLASTIC COVER - AP WITHOUT THREAD The Plastic Cover AP prevents dirt and concrete water entering the bush in the PSA or PSAD thread zone. This Plastic Cover is made of plastic material (PVC or LDPE). AP Product no. Thread D d h M [mm] [mm] [mm] AP AP AP AP AP AP AP AP AP AP AP DOUBLE THREADED SCREW PLUG SN SN Product no. Thread Thread L M1 M2 [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 Terwa reserves the right to make changes to the documentation at any time Page 27

28 PLASTIC NAILING PLATE KU-2 KU-02 Product no. Thread Diam. D Thickness M [mm] [mm] KU-02-M M KU-02-M M KU-02-M M KU-02-M M The nailing plates KU-02 are made of plastic and used for fixing the PSA or PSAD reinforcement coupler to the formwork with nails. These are suitable for fixing the PSA reinforcement coupler to the surface of the concrete units. PLASTIC NAILING PLATE KU-10 Nailing plates KU-10 are used for fixing the PSA and PSAD rebar connection to the formwork with nails. The fixing flange ensures a minimal recess around the head of the anchor. The recess is filled with fine concrete for protection against corrosion. KU-10 Product no. Thread Diam. D Diam. d s M [mm] [mm] [mm] Colour KU-10-M Red RAL 3020 KU-10-M Grey RAL 7043 KU-10-M Green RAL 6024 KU-10-M Blue RAL 5015 KU-10-M Violet blue RAL 5000 KU-10-M Orange RAL 2009 KU-10-M Brown RAL 8001 KU-10-M White RAL 9003 Plastic nailing plates KU-10 are nailed to formwork. Using forming wax on the nailing plate makes it easier to remove and screw on PSA or PSAD connection. The rebar connection must be fastened to the reinforcement by suitable means so that it does not move during concreting. After stripping, unscrew. Terwa reserves the right to make changes to the documentation at any time Page 28

29 INSTRUCTIONS FOR INSTALLING KU-10 STEEL MAGNETIC PLATE - TPM The plates with magnets TPM are used for fixing the anchors and the lifting sockets to the steel formwork. The fixing flange ensures a minimal recess around the head of the anchor. When using this magnetic recess former, it is very important that the surface of the formwork be clean. The recess is filled with fine concrete for protection against corrosion. TPM-10 Product no. Thread Diam. D s M [mm] [mm] TPM-10-M TPM-10-M TPM-10-M TPM-10-M TPM-10-M TPM-10-M TPM-10-M TPM-10-M Note: the magnets are high strength so please be careful of your hands when mounting them on the steel formwork. Terwa reserves the right to make changes to the documentation at any time Page 29

30 ALL SPECIFICATIONS CAN BE CHANGED WITHOUT PRIOR NOTICE. DISCLAIMER Terwa B.V. is not liable for deviations due to wear of the products it has delivered. Neither is Terwa B.V. liable for damage due to inaccurate and/or injudicious handling and use of the products it has delivered and/or use of same for purposes other than those intended. Terwa B.V. s responsibility is furthermore limited in conformance with article 13 of the Metaalunie conditions, conditions which are applicable for all Terwa B.V. deliveries. Compliance with all applicable copyright laws is the user s responsibility. Without limiting the rights under copyright, no part of this documentation may be reproduced, stored in or introduced into a retrieval system, or transmitted in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise), or for any purpose, without the express written permission of Terwa B.V. Terwa reserves the right to make changes to the documentation at any time Page 30