Daver 520 tie bar system
Fork end tie rods in Grade 520 carbon steel and stainless steel, pre-assembled and set to nominal pin-to-pin length. UKCA and CE marked to Execution Class 3.
M12 to M100 carbon · M12 to M56 stainless
Daver 520 tie bar system
Assembly, Installation & Site-stressing
Structural bar system tendon adjustment data (in mm)
| Row heading | Units | M12 | M16 | M20 | M24 | M30 | M36 | M42 | M48 | M56 | M64 | M76 | M90 | M100 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fork - fork | +/- mm | 15 | 15 | 15 | 20 | 20 | 20 | 25 | 25 | - | - | - | - | - |
| Per turnbuckle | +/- mm | 25 | 25 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
Structural Bar System Site Installation
Fork-fork tendon:
For rapid installation on site DST520 tendons are pre-assembled in the factory and set to their normal pin-pin length. The tendons are then ready for immediate incorporation into the structure and generally require no site assembly, saving valuable time.
To install, follow the steps below:
- Back off lock covers
- Install tie rods and pins
- Adjust to length-torque to required value if required
- Tighten lock covers
For extra security the pin end caps can be secured using a chemical locking compound (such as 'Loctite') on the counter sunk set screws.
Forks are generally drilled with a blind hole to prevent any run-off from the bars. The lock cover/bar opening can be sealed with a proprietary exterior silicon sealant if required.
Fork-turnbuckle-fork tendon:
Tendons longer than 12m will be split into transportable lengths and some
site assembly will be required.
Ensure all components are fitted to the bar
and the nominal pin-to-pin length has been set.
To install, follow the steps below:
- Back off turnbuckle locking thread covers
- Install tie rods and pins, tighten fork lock covers
- Adjust tendon length with turnbuckle-torque to required value if necessary
- Tighten turnbuckle lock covers
For extra security the pin end caps can be secured using a chemical locking compound (such as 'Loctite') on the counter sunk set screws.
Forks are generally drilled with a blind hole to prevent any run-off from the bars. The lock cover/bar opening can be sealed with a proprietary exterior silicon sealant if required.
Site-stressing:
Certain applications may require tendons to be stressed after installation. This can be performed providing that jacking turnbuckles have been specified. Daver Steels can offer a robust and easy-to-use range of jacking equipment to provide a simple solution to the stressing of tendons which can be performed by competent steel erectors.
Please contact Daver Steels sales office for further information.
