Flat and Circular Strand Wedge Anchors for High-Grade Steel Post-Tensioning Applications
Key Attributes
Product Custom Attributes
Highlight
Flat Anchor Strand Wedge Anchor
,Circular Anchor Strand Wedge Anchor
,High-Grade Steel Prestressed Anchor
Product Description
Strand Wedge Anchors: Flat and Circular Solutions
In post-tensioned concrete construction, strand wedge anchors serve as the critical link that transfers immense tensile forces from prestressing steel into concrete, ensuring structural integrity and longevity. The choice between flat and circular anchor designs depends on specific spatial and load-bearing requirements.
Flat vs. Circular Anchor Comparison
| Feature | Flat Strand Wedge Anchor | Circular Strand Wedge Anchor |
|---|---|---|
| Primary Design | Low-profile, rectangular/cuboid head | Cylindrical, multi-strand anchor head |
| Strand Arrangement | Strands in single horizontal plane (2-5 strands typical) | Strands bundled in circular pattern (2-40+ strands) |
| Ideal Application | Thin structural members: slabs, bridge decks, low-height girders | Thick members: bridge beams, heavy foundations, slope stabilization |
| Key Advantage | Minimizes structural thickness for confined spaces | Excellent for high-capacity, multi-strand tendons and uniform stress distribution |
| Common Project Use | Building floors, parking garages, box girder transverse prestressing | Long-span bridges, seismic retrofitting, rock and soil anchoring |
Engineering Performance Solutions
Our strand wedge anchors are precision-engineered complete systems manufactured from high-grade steel (45# carbon steel or 40Cr alloy) with heat-treated wedges (HRC 58-65 hardness) that securely grip strands without causing damage.
Flat Anchor System
Designed for efficiency in slim profiles, flat anchors arrange strands side-by-side in a flat duct to overcome excessive prestress concentration and enable more rational stress distribution. Ideal for horizontal prestressing of building slabs, bridge decks, and supported continuous beams.
Circular Anchor System
Built for strength and reliability, circular anchors efficiently distribute radial stresses from multiple strands. Essential for slope stabilization and specialized post-tensioning applications, typically stressed using multi-strand jacks.
Both systems are supplied as complete kits including anchor head, wedges (2 or 3-piece), bearing plate, and spiral reinforcement to control concrete bursting forces.
Technical Specifications & Customization
Our anchors accommodate standard 15.2mm (0.6") and 12.7mm strands, with systems available for larger diameters like 17.8mm.
- Flat Anchors: Range from 2-5 strands in single plane with custom configurations available
- Circular Anchors: Standard units from 2-7 strands, with multi-strand systems configurable for 4-42+ strands
All components undergo rigorous quality control and static load testing to validate anchoring efficiency coefficients.
Application & Installation Best Practices
Proper installation ensures designed load capacity. Flat anchors use mono-strand jacks for individual strand tensioning, while circular anchors employ multi-strand jacks for simultaneous tensioning.
- Ensure correct positioning and fixing of ducts and anchorages before concrete pour
- Use recommended stressing equipment and calibrated procedures
- Employ proper grouting techniques after stressing for corrosion protection
- Follow all safety protocols and manufacturer guidelines during tensioning
Why Partner With Us
Our strand wedge anchors deliver reliability backed by engineering excellence. We provide integrated solutions with extensive industry experience supporting projects from design through on-site application.
We offer strong OEM/ODM capabilities for custom anchorages to your precise specifications, backed by rigorous factory quality control and on-demand tension testing capabilities.
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