BM15-5/BM15-5P Prestressed Anchor Direct Sales for Prefabricated Beam Bridge Anchorage Components

1. Prestressed Tensioning Anchors

Function: Used to grip prestressed tendons during the tensioning process, applying force via hydraulic jacks and other equipment, ultimately locking the prestress into the structure.

Common Types:

• Wedge-Type Anchors (e.g., QM, OVM, BM series):
  • Suitable for steel strands, anchored via wedge-shaped clips.
  • Typical models: 15 series (7Φ5 steel strand), BM15-5/BM15-5P Prestressed Anchor Direct Sales for Prefabricated Beam Bridge Anchorage Components 12 series (4Φ12 steel strand), etc.
• Button Head Anchors:
  • Used for high-strength steel wires, mechanically anchored via button heads.
  • Requires upsetting the wire end to form an anchor head.
• Nut Anchors:
  • Used for threaded steel bars, secured via nuts.
  • Commonly used with precision-rolled threaded steel bars in pre-tensioning or post-tensioning methods.

Features:

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

2. Fixed Anchors (Fixed-End Anchors)

Function: Installed at the non-tensioning end of prestressed tendons, BM15-5/BM15-5P Prestressed Anchor Direct Sales for Prefabricated Beam Bridge Anchorage Components solely for fixing prestressed tendons and not involved in active tensioning.

Common Types:

• Compression Anchors (P-Type Anchors):
  • Steel strands are fixed to anchor plates via compression sleeves, suitable for post-tensioning methods.
• Flowerpot Anchors (H-Type Anchors):
  • The end of the steel strand is splayed and embedded in concrete to form anchorage.
• Bolt Anchors:
  • Used for fixed ends of precision-rolled threaded steel bars.

Features:

• No tensioning operation required, but anchoring 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 anchor pressure to the concrete to prevent local crushing.
• Spiral Reinforcement: Enhances the crack resistance of concrete in the anchorage zone.
• Corrugated Pipe: Reserves channels, protects prestressed tendons, and ensures grouting compactness.