Tie-in Frame

Steel frames tie the mast back to a floor slab or column. The number of tie-ins sets the free-cantilever height of the mast and keeps guide roller loads inside the design envelope.

Spacing must satisfy both the 9 m code limit and the manufacturer load table — take whichever is stricter. Removing a tie-in to clear a façade detail is never acceptable without a structural engineer signing it off.