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Temporary bracing is the unseen part of the hall

The hall is not open when the first column stands. The crane does not move to the next grid until the temporary brace, its removal and the wind case are written down.

Bracing rarely shows in the finished photograph, because it comes down when the work is done. Invisible does not mean it was never a line item. At NFS Çelik & Yapı we do not leave the first grid without a frame — vertical bracing or temporary ties. A single column seated on its anchors is not a frame. Wind, a slewing crane or a truck nudge is enough to take that column down on its own.

Three records: place, removal, wind

Three things are written for a temporary member: which grid it ties, when it comes down once the permanent brace or roof member is seated, and who owns that interim wind case. Removal happens after the bolts of the member that replaces it are tight — not because “it looks stable”. A tie taken down early leaves the hall unframed for an afternoon. A tie left late blocks the facade, a door opening or the crane runway. Both fall outside the erection plan.

The crane advances while the brace is still there

Moving to the next grid is not written until the previous grid’s temporary stability is closed. On a tight OIZ plot the crane already has few stands; a truck cannot sit in front of the column the brace is tied to. Shipping lots and the temporary member therefore live on the same plan. If a piece mark is on the truck list, the temporary member needs a mark too. An unmarked tie becomes “let’s tie that bar somewhere” on the day.

The hall opens when the permanent steel is seated. Until then the temporary brace is part of the hall. Its absence from the photograph does not mean it left the plan.