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This simple video captures some process in our production of post tensioning accessories, namely Anchor Head and Wedge.
Anchor Head (also commonly known as Wedge Plate) is an important part of the post tensioning system. It works in tandem with the Wedge that holds the individual tensile element. The prestressing load is then transfer to the Bearing Plate. For some small tendon sizes, this prestressing force can be transferred directly to the structure without the need of Bearing Plate.
In the case of some mono anchorage system, the Wedge will hold an individual tensile element directly to the Bearing Plate.
Anchor Head and Wedge is subjected to Static Load and Fatigue (Reliability) Test. Hence its design and production quality control is of paramount importance.
Static Load Test requires the Anchor Head and Wedge to hold to a specific percentage (>95%) of the tensile element ultimate strength with a minimum elongation (>2%), with without premature failure of anchorage components, without undue deformations in the components, and without disproportionate relative movements between tensile elements and anchorage components.
As for Fatigue Test, the Anchor Head and Wedge have to go through 2 million cycles of fatigue loads (dynamic strength, 80MPa) without exceeding a specified percentage loss of tensile element cross section (<5%).
We hope this video provides some insight of our production process and gives our operators a better understanding of our commitment to quality control.
Post tensioning is a technique used in modern construction to reinforce concrete structures. It involves the use of high-strength steel cables, which are tensioned after the concrete has been poured and cured. The cables are anchored at each end of the structure, and the tension is maintained by a series of wedges and other components.
One of the most important components in post tensioning is the wedge. The wedge is a small, triangular piece of metal that is used to lock the cable in place once it has been tensioned. The wedge is inserted into a pocket in the anchor, and as the cable is tensioned, the wedge is forced deeper into the pocket, locking the cable in place.
Post tension wedges come in a variety of sizes and shapes, depending on the size and type of cable being used. They are typically made from high-strength steel or other durable materials, and are designed to withstand the extreme forces generated by the tensioned cables.
Raw material grade for the Post tension wedge is 20CrMnTi , there are two types : 2 and 3 parts . widely suit for PC Wire &#;4mm-11mm&#;and PC Strand 12.7mm,15.24mm ,15.7mm ,17.8mm and 21.6mm&#;. it can produced by your drawing or samples , carve your logo letters ,and samples for your testing freely.
Barrel raw material
40Cr
Wedge raw material
20CrMnTi;20CrMn5
Hardness of anchor(HRB)
25-35
Wedge Surface Hardness
HRA79-84
Wedge Core Hardness
Want more information on wholesale post tension wedges? Feel free to contact us.
HR38-46
Carburization Layer Depth
0.35-0.6mm/0.6-0.8mm
Anchor Efficiency Coefficient η a
η&#;0.95
With-draw of wedge after stressing
&#;6mm
Tempered
1-4
Retained Austenite
1-4
Inspection of Appearance
Tooth Shape without Defect,Bad Teeth,Variant
Standard
GB/T-
In addition to their strength and durability, post tension wedges are also designed to be easy to install and remove. This is important because post tensioning is often used in situations where access to the cables is limited, such as in bridges or high-rise buildings.
Overall, post tension wedges are a key component in modern construction, allowing engineers and builders to create stronger, more durable structures that can withstand the forces of nature and the test of time. As technology continues to advance, it is likely that post tensioning techniques and components will continue to evolve, leading to even more innovative and effective solutions for construction challenges.
Contact us to discuss your requirements of bulk supply post tension anchor. Our experienced sales team can help you identify the options that best suit your needs.