Roof Truss Tension Rods

The trusses are tensioned between the concrete floor slab and the steel roof structure.

Roof truss tension rods. The more complex the truss framework is the greater quantity of these joints will be required. Finally the truss calculator will compute the best dimensional method to connect the pieces of the truss with steel joints and a bridge. That load needs to be transferred from the rod to the timber truss. Our in house deep hole drilling capability allows atm to incorporate this technology into its truss design and fabrication.

The main feature of this repair was the installation of post tensioned steel rods designed to relieve the truss bottom chords of overstress due to code prescribed snow loads. Steel tension rod connection. Steel tension rods can carry in excess of 35 000 pounds of tension in large timber trusses. Custom fabricated steel brackets were installed at the heel joints to transfer the top chord loads into the new steel tension rods.

The common news media comment about a truss roof or floor having collapsed suddenly without. The detail on the left shows ones solution. Swc can source these rods in a variety of diameters lengths and materials along with appropriately sized clevises to create a clean pinned connection to attachment points. Trusses having a more contemporary appearance may utilize steel tie rods for some members.

A boot is attached to the timber tie with bolts and shear plates transferring the load. Tie rods are supplied with left hand and right hand threads so that they may be. The same thing is true for the bridge of the truss. The system pretension loading and sizing of the tension rod is determined from the thermal load dead load creep seismic and wind loading conditions specific to the supporting structure.

These steel joints are needed to support the overall truss.