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1)Application and performance
Flat prestressed anchorage system applies toφ15.24 or φ15.7 steel strands. Flat anchors help reducing the thickness of post-tensioned members and are suitable for tensioning steel strands either separately with a front-clamp small jack or wholly with a special jack.
2)Structural diagram of BJM15 anchor:
1. Working wedge 2. Flat anchor plate 3. Anchor backing plate 4. Steel strand 5. Bellows
3)Parameters of BJM15 anchor (unit: mm)
Type | Number of steel strands | Anchor backing plate | Anchor plate | Bellows (internal) | |||||
A | B | C | D | E | F | G | H | ||
BJM15—2 | 2 | 160 | 70 | 110 | 82 | 48 | 50 | 50 | 19 |
BJM15—3 | 3 | 200 | 70 | 150 | 117 | 48 | 50 | 60 | 19 |
BJM15—4 | 4 | 230 | 70 | 180 | 152 | 48 | 50 | 70 | 19 |
BJM15—5 | 5 | 260 | 70 | 215 | 187 | 48 | 50 | 90 | 19 |
Flat anchorage system