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Help CenterPT Slab S3 for High Buliding Construction
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1 PT Slab S3 for high buliding construction
2 PT slab anchor components
1. PC cable
2. Wedge
3. Anchor head S3
4.Anchor plate casting
5.Corrugated metal flat duct
3 Main Performance for LQM PT slab anchor
| Matched with strand diameter of | 12.7mm ; 12.9mm,15.24mm ;15.7mm, 17.8mm-18.5mm, 21.6mm-22mm |
| Tensile strength | 1860 Mpa |
| Yield strength | 1675MPa |
| Hardness | 20-35HRC |
| Static load test passed anchoring efficiency | ηA≥0.95 and elongation ≥2% |
| With-draw of wedge after stressing | λ≤6mm |
4 Production process
5 PT slab stressing anchorage data
Strand Dia |
0.5” (12.7mm) |
0.6”(15.2mm) |
||||||
No. of strand |
2 |
3 |
4 |
5 |
2 |
3 |
4 |
5 |
Anchor Head Type |
SF205 |
SF305 |
SF405 |
SF505 |
SF206 |
SF306 |
SF406 |
SF506 |
Ultimate tensile force per tendon, 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 |
50×19 |
60×19 |
70×19 |
90×19 |
50×19 |
60×19 |
70×19 |
90×19 |
Jack Type |
YDC250 |
YDC250 |
YDC250 |
YDC250 |
YDC250 |
YDC250 |
YDC250 |
YDC250 |
6 Multistrand PT slab duct - bonded tendon systems
The multistrand PT slab duct systems is normally adopted for bonded tendon.
The strands are individually gripped in one flat anchor head unit and tramsmits their prestressing forces by means of flat type anchor plate casting unit.
The strands are stressed individually by means of a mono strand jack.
The strands are contained in one flat duct which is made of corrugated galvanized or non-galvanized metal.
To ensure corrosion protection and to give adequate bond strength, the tendons are filled with suitable cement grout mix after complete stressing of the strands.
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