Structural Coupler
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Features
- Structural coupler for connecting threaded rebar.
- Connects rebar in vertical, horizontal, diagonal and other directions.
- Review tensile, compressive, shear and bending load requirements against the site design and test documentation for the applicable product.
- Can be installed even when both rebars to be connected are fixed.
- Absorbs center and length tolerances of rebars fixed at both ends.
- Shortens construction time through immediate structural connection.
- Made to order.
Specifications
- A
- Clearance between rebars
- B
- Rebar center offset allowance
- C
- Swaged rebar thread length
- D
- Thread size and pitch
- E
- Min. assembly clearance
- F
- Bolt/nut coupler engagement length
- G
- Overall Structural Coupler length
- H
- Maximum coupler outside diameter
| Type | A | B | C | D | E | F | G | H |
|---|---|---|---|---|---|---|---|---|
| D16 | 10~20 | 4.0 | 29.0 | 1N-M16.0 | 125.0 | 40.0 | 58.0 | 43.8 |
| D19 | 10~20 | 4.0 | 32.5 | 1N-M20.0 | 135.0 | 44.0 | 65.0 | 51.0 |
| D22 | 10~20 | 5.0 | 35.0 | 1N-M23.0 | 145.0 | 48.0 | 70.0 | 60.0 |
| D25 | 12~24 | 5.0 | 42.0 | 2N-M26.0 | 170.0 | 52.0 | 84.0 | 66.0 |
| D29 | 15~30 | 5.0 | 47.5 | 2N-M29.5 | 200.0 | 64.0 | 95.0 | 75.5 |
| D32 | 15~30 | 6.0 | 50.0 | 2N-M32.5 | 215.0 | 71.0 | 100.0 | 84.0 |
| D35 | 15~30 | 6.0 | 52.5 | 2N-M36.0 | 235.0 | 84.0 | 105.0 | 92.5 |
| D38 | 15~30 | 6.0 | 55.0 | 2N-M39.0 | 255.0 | 92.0 | 110.0 | 100.0 |
| Tolerance | ±0.5 | ±0.1 | ±0.1 | -0.3 | ±10.0 | +2.0 | +2.0 | ±0.1 |
Unit: mm※ These specifications can be adjusted to site conditions and customer requirements.
Components
Bolt Coupler
Nut Coupler
T-Sleeve
Installation Steps
1.Thread the two rebar ends with long and short threads, then insert the bolt coupler and nut coupler.
(The bolt and nut couplers may be inserted onto either the long- or short-threaded rebar.)
2. Thread the T-sleeve onto the threaded portions of both rebars.
3. Position the structure so the rebar spacing and centerlines match the dimensions specified in the table.
4.Loosen and tighten the installed T-sleeve until the members meet, then adjust the overall structure for vertical and horizontal alignment. Ensure no gap remains at the contact surfaces.
5. Thread the bolt coupler and nut coupler together to complete the connection.
Related Patent
Product selection and quotation
What should be checked when splicing fixed bars with a Structural Coupler?
The Structural Coupler connects fixed rebars prepared with long and short threads. Check the long and short thread lengths and pitch, bar spacing, center and length tolerances, and clearance for the T-sleeve and tools against the dimensional drawing and installation sequence.
| Product | Purpose | Site checks |
|---|---|---|
| Ultra Coupler | Field-assembled rebar splicing | Rebar grade, diameter and installation space |
| Terminator | Rebar end anchorage | Anchorage details and design requirements |
| PC Coupler | Rebar splicing for precast structures | Center and length tolerances and exposed rebar length |
| Structural Coupler | Splicing fixed, threaded rebars | Long/short end threads, bar spacing and assembly clearance |
Before applying the product, check the rebar grade and diameter and the site conditions. Review test documentation against the design requirements. Published test results apply to the specified specimens and sizes.
What information is needed for a quotation?
Provide the product, rebar grade and diameter, quantity, site drawings or photos, whether the bars are fixed, available working space and requested delivery date. Junsung Industry will review product suitability, price and delivery requirements through the contact form or by phone at +82-53-581-5819.