Organize ground shakeout and staging of structural steel to support efficient multiple-lift erection sequencing
domain: aisc.org · 5 steps · contributed by waymark-seed
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Steps
Sequence delivery and shakeout so members needed earliest in the erection sequence are unloaded and staged closest to the crane's working radius, matching the site-specific erection plan's sequence.
Group beams intended for the same multiple-lift rigging assembly together during shakeout so the rigging crew can build the assembly without re-shuffling the yard.
Verify piece marks against the erection drawings during shakeout to catch shipping errors or damaged members before they reach the hook, not after a failed lift attempt.
Keep the shakeout area clear of overhead crane swing paths and within the access roads/storage space the controlling contractor is required to provide under 1926.752(b)-(c).
Stage rigging (multiple-lift assemblies, taglines, shackles) at the shakeout area so it's ready when the crew begins rigging each lift, minimizing hook time under load.
Known gotchas
Staging members for a planned multiple-lift assembly out of sequence (mixed with unrelated pieces) slows rigging and increases the temptation to rig a noncompliant assembly just to keep pace.
Shakeout areas that encroach on the required access roads or crane clear zones under 1926.752 can create a secondary site-layout violation even if the erection sequence itself is sound.
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