Contact me for production of YM15-7 hole and 9 hole anchorages and grips for prestressing tendons

Used to grip prestressing tendons during the tensioning process and apply tensile force through equipment such as hydraulic jacks, ultimately locking the prestress into the structure.

Common Types:

• Wedge-type Anchorage (e.g., QM, YM, BM series):
  • Suitable for steel strands, anchored via wedge-shaped clips.
  • Typical models: 15 series (7Φ5 steel strand), 12 series (4Φ12 steel strand), etc.
• Button-head Anchorage:
  • Used for high-strength steel wires, Contact me for production of YM15-7 hole and 9 hole anchorages and grips for prestressing tendons anchored mechanically via button heads.
  • Requires upsetting the wire end to form an anchor head.
• Nut Anchorage:
  • Used for threaded steel bars, secured by nuts.
  • Commonly used with precision-rolled threaded steel bars in pre-tensioning or post-tensioning methods.

Features:

• Must be used with jacks to withstand the significant loads during tensioning.
• Requires high anchoring efficiency (≥95%) and minimal retraction (≤6mm).

2. Fixed Anchorage (Fixed End Anchorage)

Function: Installed at the non-tensioning end of the prestressing tendon, Contact me for production of YM15-7 hole and 9 hole anchorages and grips for prestressing tendonsonly used to secure the prestressing tendon and does not participate in active tensioning.

Common Types:

• Compression Anchorage (P-type Anchorage):
  • Secures the steel strand to the anchor plate via a compression sleeve, suitable for post-tensioning.
• Flower-spray Anchorage (H-type Anchorage):
  • The end of the steel strand is splayed and embedded in concrete to form anchorage.
• Bolt Anchorage:
  • Used for the fixed end of precision-rolled threaded steel bars.

Features:

• No tensioning operation required, but anchorage reliability must be ensured.
• Typically embedded in concrete, relying on bond strength or mechanical interlock to transfer prestress.

3. Supporting Components

• Anchor Bearing Plate: Distributes anchorage pressure to the concrete to prevent local crushing.
• Spiral Reinforcement: Enhances the crack resistance of concrete in the anchorage zone.
• Corrugated Pipe: Provides reserved ducts, protects prestressing tendons, and ensures grouting compactness.

4. Selection Considerations

1. Compatibility: Anchorage model must strictly match the specifications (diameter, strength) of the prestressing tendon.
2. Standards and Codes: Must comply with standards such as 《GB/T 14370-2015 Anchorage, Grip, and Coupler for Prestressing Tendons》.
3. Corrosion Protection: Anchorage and exposed steel strands require anti-corrosion treatment (e.g., grouting, oil coating).