Prestressed concrete anchor head for pc strands

FOB Reference Price:Get Latest Price
US $3-5 / Set | 10 Set/Sets (Min. Order)
Supply Ability:
21000 Set/Sets per Month
Port:
Shenzhen,Guangzhou,Shanghai,Beijing
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Overview
Quick Details
Place of Origin:
Guangxi, China (Mainland)
Brand Name:
QMV
Model Number:
QMVM15
Material:
Steel
diameter of stranded wire:
15.2mm~15.7mm
executive standard:
GB-T14370-2007 Anchorage,grip and coupler for prestressing tendons
specification:
2 holes
Packaging & Delivery
Packaging Details
cartons or wooden case.
Delivery Time
5-15 working days

  Prestressed concrete anchor head for pc strands

. Its key part material:  

     work anchorage head:45# or 40Cr     work gripper :20CrMnTi

.hardness: work anchorage head:   ≤33HRC (306 HBS)   work gripper  :78~86HRA

 

.static load performance testing:

  anchoring efficiency coefficient:ηa≥0.95;    total strain:   εapu≥2.0%

 

Matched tensioning device:

   YCQQ series jack, ZB4-500 hydraulic pump

 

.anchorage structure diagram:

 

 

 

  

 

1. working gripper       2.working anchorage head       3. bearing plate

 4. spiral reinforcement       5. duct      6. stranded wire

 

. The installation diagram of stressing anchorage and jack

 

 

Technical index

 

The design and the manufacturing standard are according with the national standard<Anchorage, grip and coupler for prestressing tendons> and relevant industry standard. The index of the performance can meet:

 

1.Performance of anchor static loading:

 

 

Anchoring efficiency of the assembly part of anchor steel strand ηa≥0.95;

 

Limit strain of the assembly part of anchor strand steel εapu≥2%.

 

2.Performance of circle loading:

 

The component of the steel strand is about 100MPa/min speed. It is loading to 80% of the standard strength of steel strand, and then unload to 40%, load to 80% again, it repeats 50 cycles, the anchor and the steel strand are without damaging.

 

3.Performance of anchor:

 

Bearing 2 million circles loading, stress amplitude is 80 MPa , the limited stress is 65% of the standard strength of steel strand, the breaking area is not more than 5% original area after test.

 

4.Anchor inward≤5mm,anchor friction≤6%.