Contact me for M15-12 hole prestressed anchor manufacturer and 15-hole anchor pricing for prestressed concrete

Prestressed Concrete Anchor Product Introduction and Construction Guide

Product Introduction

Prestressed anchors are critical components in post-tensioned prestressed concrete structuresContact me for M15-12 hole prestressed anchor manufacturer and 15-hole anchor pricing for prestressed concrete, used to anchor prestressed tendons (strands, wires, or steel bars) and transfer prestress to the concrete structure. The reliability of anchors directly affects the safety and durability of the structure.

Anchor Classification

1.By prestressed tendon type:

• Strand anchor 

  • Wire bundle anchor (e.g., button-headed anchor, cold-cast anchor)
  • Steel bar anchor (e.g., threaded end anchor, rolled-thread anchor)

  2.By anchoring principle:

• Wedge-type anchor (e.g., multi-hole wedge anchor, flat anchor)

  • Bearing-type anchor (e.g., button-headed anchor, nut anchor)
  • Bond-type anchor (e.g., indented anchor, extrusion anchor)

  3.By usage position:

• Tensioning end anchor (requires jack for tensioning)

  • Fixed end anchor (embedded in concreteContact me for M15-12 hole prestressed anchor manufacturer and 15-hole anchor pricing for prestressed concrete, no tensioning required)

Anchor Construction Methods

Pre-construction Preparation

1.Material inspection:

• Anchors and wedges must be free from rust, cracks, or deformation.
  • Prestressed tendons (strands/wires) must have undamaged surfacesContact me for M15-12 hole prestressed anchor manufacturer and 15-hole anchor pricing for prestressed concrete and meet design requirements.
    2.Tool preparation:
• Tensioning jack, oil pump, pressure gauge (must be calibrated).
  • Anchor installation tools (e.g., limit plate, pushing device).
    3.Concrete strength verification:
• Tensioning can proceed only after reaching ≥75% of design strength (as per design specifications).

Installation Steps

1. Anchor Assembly

• Wedge-type anchor:

1. Slide anchor ring onto prestressed tendon.
2. Insert wedges ensuring match with anchor ring cone.
3. Tap wedges lightly for preliminary fixation.

• Button-headed anchor/Nut anchor:

  1. Upset tendon end or thread processing.
  2. Tighten anchor nut or install button-headed anchor plate.. Anchor Positioning

• Tension end anchors must align with corrugated pipe to avoid deviation.

• Fixed end anchors should be embedded in concrete ensuring tight contact between anchor plate and structure.

3. Prestressed Tendon Tensioning