Post Tensioning System

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post tensioning system

ZJM Post Tensioning System

Model: ZJM15(13)-N (N is the number of anchor ring holes)

Number of holes: 1 hole to 55 holes

Composition: anchor head, wedges, bearing plate, and spiral reinforcement.

Application: highway bridges, railway bridges, urban interchanges, urban light rails, high-rise buildings, water conservancy and hydropower dams, port terminals, rock mass slope protection.

ZJM Post Tensioning Systems is composed of stressing anchorage (ZJM round anchorage, BM flat anchorage, HM circular anchorage, DM button-head anchorage, YGM precision rolling nut, and LM thread anchorage), dead-end anchorage (dead-end anchorage Type P, dead-end anchorage Type H, dead-end anchorage Type PT), coupler (ZJM.L round coupler, BML flat coupler), duct, tooling anchorage, and stressing equipment. The anchorages can be categorized into different specifications according to the diameter of strands (φ9.5, φ11.1, φ12.7, φ15.2, φ17.8, φ18.9 and φ21.6, etc.) and different prestressing tendons.

Its performance indicators and test parameters can reach the national standard GB/T14370-2015 and JT/T329-2010, as well as FIP-Recommendations for Acceptance and Application of Post-tensioning Systems. The annual manufacturing capacity reaches over 12 million anchor holes and 5000 sets of prestressing equipment.

The advantages of ZJM Post Tensioning Systems:

  • Wide applications: It is adaptable for strands with diameters from φ9.5 to φ21.6 and various strengths from 1570MPa to 1960MPa, for high tension wires with diameters from φ4 to φ10 and various strengths from 1570MPa to 1770MPa and other prestressing tendons with different diameter and strength.
  • More choices: ZJM Post Tensioning System is available for 1 to 55 pcs of strands and other prestressing tendons and even more based on the special design in accordance with the demands of customers.
  • Good in terms of self-anchoring.
  • High static anchoring efficiency, stable and reliable.
  • Easy operation.
  • Be capable of multi-stage and repetitive stressing.
  • Strong in terms of anti-interference capability, fewer requirements for the environment.

Structure of ZJM Post Tensioning System

drawing of post tensioning systems

1. Tool wedges   2. Tool anchor head   3. Piston   4. Oil cylinder  5. Spacing plate   6. Wedges   7. Anchor head   8. Bearing plate   9. Spiral reinforcement   10. Corrugated duct   11. Strand

Specification of Multistrand Anchorage

drawing of multiplane anchorage
Model Anchor Head Bearing Plate Duct Spiral Reinforcement Stressing Jack
ΦA B Square Round ΦF ΦE ΦG H
C×D ΦC×D (ID)
ZJM15-1 48 48 80×12 80×20 35 80 8 30 QYC270
ZJM15-2 86 46 130×100 130×110 50 120 10 40 YDC1100
ZJM15-3 91 50 130×100 130×110 50 120 10 40 YDC1100
ZJM15-4 102 50 145×110 145×120 50 140 10 50 YDC1100
ZJM15-5 112 50 160×125 160×130 55 150 10 50 YDC1100
ZJM15-6 120 52 180×155 180×150 70 170 12 50 YDC1500
ZJM15-7 126 52 180×155 180×150 70 170 12 50 YDC1500
ZJM15-8 136 55 195×175 195×160 80 190 12 50 YDC2500
ZJM15-9 146 55 205×190 208×160 80 200 12 50 YDC2500
ZJM15-10 156 58 210×210 220×180 90 205 14 60 YDC2500
ZJM15-11 166 58 210×210 235×190 90 205 14 60 YDC2500
ZJM15-12 166 60 235×210 235×190 90 230 14 60 YDC2500
ZJM15-13 170 63 235×210 235×190 90 230 14 60 YDC3500
ZJM15-14 176 65 245×210 250×210 90 240 14 60 YDC3500
ZJM15-15 186 68 265×245 265×245 100 260 16 60 YDC3500
ZJM15-16 196 70 265×250 265×245 100 260 16 60 YDC3500
ZJM15-17 196 73 285×270 275×265 100 280 16 60 YDC4000
ZJM15-18 206 75 285×275 285×280 100 280 16 60 YDC4000
ZJM15-19 206 75 285×275 285×280 100 280 16 60 YDC4000
ZJM15-20 226 80 300×285 300×290 120 290 16 60 YDC5000
ZJM15-21 226 80 300×285 300×290 120 290 16 60 YDC5000
ZJM15-22 226 80 300×285 300×290 120 290 18 60 YDC5000
ZJM15-23 226 85 330×285 330×300 120 330 18 60 YDC5000
ZJM15-24 235 85 330×300 330×300 120 330 18 70 YDC5000
ZJM15-25 245 85 330×300 330×300 120 330 18 70 YDC6000
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