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Post Tension Anchorage

Post Tension Anchorage

Post-tensioned concrete is a variant of prestressed concrete where the tendons are tensioned after the surrounding concrete structure has been cast. Bonded post-tensioning has prestressing tendons permanently bonded to the surrounding concrete by the in situ grouting of their encapsulating ducting following tendon tensioning. This grouting is undertaken for three main purposes: to protect the tendons

against corrosion; to permanently “lock-in” the tendon pre-tension, thereby removing the long-term reliance upon the end-anchorage systems; and to improve certain structural behaviors of the final concrete structure.

Product Details

The material for flat arc anchor head and bearing plate are spheroidal graphite cast iron.

Flat arc anchorage can be applied for stressing construction of bonded and unbonded prestressing projects,

cast-in-site concrete structure, precast construction and various special structures.


Features

Including anchor head, anchor wedge and anchor plate

Adopts the ductile iron material, and combines the traditional anchor head and the anchor plate into one, which greatly simplifies the complicated machining process in the previous anchor tool processing

The utility model is characterized in that the tension end anchor is integrated with the anchor ring by ductile iron, and the structure is compact and the anchoring is reliable.

The full length of the prestressing tendon can be completely closed.

Flat Shape, Mature Efficiency Design, Straight or Arc shape anchor head available 3, 4, 5 holes


Specification

Specifications

PC strand dia

12.7mm(0.5 inch)

15.2mm(0.6 inch)

Strand quantity

2

3

4

5

2

3

4

5

Anchor head model

DF205

DF305

DF405

DF505

DF206

DF306

DF406

DF506

Ultimate tensile force per strand(KN)

368

552

736

920

520

780

1040

1300

Stressing force at 0.8 U.T.S.(KN)

294

442

589

736

416

624

832

1040

Flat duct inside dimension(mm)

50x19

60x19

70x19

90x19

50x19

60x19

70x19

90x19

Hydraulic model

YDC250


Type

BM-13-3

BM-13-4

BM-13-5

BM-15-3

BM-15-4

BM-15-5

Anchor Head(mm)

110

140

170

80

160

195

45

45

45

48

48

48

45

45

45

48

48

48

Anchor Plate(mm)

150

175

200

150

185

215

160

200

230

190

220

285

70

70

70

80

80

80

Spiral duct(mm)

62

74

90

50

74

90

22

22

22

22

22

22


Post Tension Unbonded Monostrand Anchorage

Unbonded post-tensioned concrete differs from bonded post-tensioning by providing each individual cable permanent freedom of movement relative to the concrete. To achieve this, each individual tendon is coated with grease (generally lithium based) and covered by a plastic sheathing formed in an extrusion process. The transfer of tension to the concrete is achieved by the steel cable acting against steel anchors embedded in the perimeter of the slab. The main disadvantage over bonded post-tensioning is the fact that a cable can de-stress itself and burst out of the slab if damaged (such as during repair on the slab).

The material for mono anchorage can be spheroidal graphite cast iron, which puts traditional anchor ring and plates into one integration anchor. It simplifies the complicated manufacturing procedure and structure, which has the advantage of convenient construction, perfect seal ability and easy to guarantee the perpendicularity between the anchorage and steel strands.


1. Application

Modern construction, especially used in pre-tension or post-tension for concrete constructions and building materials.To lock unbond strand


2. Related Components

Anchor head, bearing plate, anchor wedge, spiral reinforcement, plastic or metal corrugated ducts, PC strands(PC wire bundle).


3. Types

YJM13 and YJM15 according to their diameters of 12.7mm / 12.9mm / 15.2mm / 15.7mm.


4. Features

Easy to use, safe and reliable.


Product Details

Product Name

mono anchorage

Material

Cast Iron

Production Process

Iron Sand Casting

Diameter

12.7, 15.24, 15.7

Application

Construction





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Do you want buy Post Tension Anchorage Made in China? Supreme Machinery is definitely your good choice. We are known as one of the most competitive Post Tension Anchorage Manufacturers and Suppliers in China. Customers are satisfied with our products and excellent service. We sincerely look forward to becoming your reliable long-term business partner! Any inquiries and problems please feel free to send emails to us and we will reply you soon.