Tie bar arrangments

Fork to fork

The simplest form of tendon comprises bar with a left hand and right hand threaded fork at opposite ends. Once installed the tendon can be adjusted in length by turning the bar.

See table 2 in the DST 460 specifications section to ensure that there is sufficient adjustment for the application.

Fork to fork with turnbuckle

Generally for longer length tendons where fork to fork tendons do not give adequate length adjustment or the overall length exceeds the maximum single bar length. A turnbuckle gives +/- 50mm adjustment for M20 and above.

Where excessive sag in a horizontal bar is anticipated a welded connection cleat can be made to the turnbuckle for hanger and stay bars to be connected.

Longer turnbuckles can also be machined, together with jacking lock covers for applications where the bars need to be stressed after installation, please contact our sales team for more information.

Central connectors

Where tendons cross in a braced bay a central connection disc can be used. Bars and forks are generally threaded left hand/right hand for the central discs. Tendons are usually fork to fork type but where longer adjustments are required, or a pre-tension is required, fork-turnbuckle-fork can be used.

The options shown here are generic arrangements. Please contact us about bespoke solutions, stainless, carbon steel brackets & glazing fabrications.