Seismic Bracing & Structural Coordination

120 records, red lane first.

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A crane pick or lift day is starting
Foreman script · 4th Year
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A heavy duct is hung from an open-web joist bottom chord
Field problem · 4th Year
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A rigid seismic brace is pressing against another trade line
Field problem · 4th Year
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A seismic brace from another area without checking detail
Foreman script · 4th Year
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A trapeze is clamped to a diagonal joist web member
Field problem · 4th Year
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Apprentice copies brace layout without understanding load path
Field problem · 4th Year
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Apprentice copies brace layout without understanding load path
Foreman script · 4th Year
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At what duct size or weight does the code require lateral and longitudinal seismic bracing?
Apprentice question · 3rd Year
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Brace anchored to non-structural element
Field problem · 4th Year
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Brace anchored to non-structural element
Foreman script · 4th Year
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Brace angle wrong or ineffective
Field problem · 4th Year
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Brace angle wrong or ineffective
Foreman script · 4th Year
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Brace at duct riser/vertical run
Foreman script · 4th Year
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Brace blocks service clearance
Field problem · 4th Year
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Brace blocks service clearance
Foreman script · 4th Year
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Brace conflicts with other trades
Field problem · 4th Year
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Brace conflicts with other trades
Foreman script · 4th Year
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Brace direction for lateral load
Foreman script · 4th Year
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Brace fasteners not tightened or inspected
Field problem · 4th Year
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Brace fasteners not tightened or inspected
Foreman script · 4th Year
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Brace installation damages duct liner/vapor barrier
Field problem · 4th Year
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Brace installation damages duct liner/vapor barrier
Foreman script · 4th Year
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Brace installed after insulation makes inspection hard
Field problem · 4th Year
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Brace installed after insulation makes inspection hard
Foreman script · 4th Year
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Brace installed to a ceiling grid support
Field problem · 4th Year
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Brace installed to a ceiling grid support
Foreman script · 4th Year
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Brace interferes with ceiling grid or lighting
Field problem · 4th Year
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Brace interferes with ceiling grid or lighting
Foreman script · 4th Year
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Brace placed on unsupported duct/fitting
Field problem · 4th Year
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Brace placed on unsupported duct/fitting
Foreman script · 4th Year
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Brace with fire-rated penetration not coordinated
Field problem · 4th Year
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Brace without approved detail
Foreman script · 4th Year
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Bracing installed after duct is already misaligned
Field problem · 4th Year
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Bracing installed after duct is already misaligned
Foreman script · 4th Year
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Bracing installed before final alignment and then fights run
Field problem · 4th Year
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Bracing installed before final alignment and then fights run
Foreman script · 4th Year
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Can a seismic strut touch a medical gas or copper pipe?
Apprentice question · 3rd Year
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Can you hang duct from a diagonal web rod in an open-web steel joist?
Apprentice question · 3rd Year
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Can you hang heavy duct from the bottom chord of an open-web steel joist?
Apprentice question · 3rd Year
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Checking structural drawing/approved insert location
Foreman script · 4th Year
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Coordinating brace with fire-rated penetration
Foreman script · 4th Year
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Copying a seismic brace from another area without checking detail
Field problem · 4th Year
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Correct hardware for brace assembly not used
Field problem · 4th Year
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Corroded or rusty overhead support, brace, hanger, or missing tag
Field problem · 4th Year
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Crane hand signals as an apprentice
Foreman script · 4th Year
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Document Seismic Bracing Before It Is Covered
Field problem · 4th Year
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Document Seismic Bracing Before It Is Covered
Foreman script · 1st Year
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Duct support hardware shows rust, pitting, staining, or corrosion
Field problem · 4th Year
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Field-made brace not allowed by spec
Foreman script · 4th Year
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Hanger-Rod Stiffeners: When the Rod Needs Lateral Support
Field problem · 4th Year
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Hanger-Rod Stiffeners: When the Rod Needs Lateral Support
Foreman script · 1st Year
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How do I install rigid bracing (strut) without creating a sound vibration transfer?
Apprentice question · 3rd Year
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How do I read the seismic engineering details for cable bracing on heavy duct?
Apprentice question · 3rd Year
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I moved a seismic brace and I am not sure I put it back right
Field problem · 4th Year
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I see a diagonal metal brace on a duct hanger - can I move it?
Field problem · 4th Year
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Installing brace without approved detail
Field problem · 4th Year
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Leaving movement clearance at expansion/flexible connector
Foreman script · 4th Year
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Lift day: where should apprentices stand before a crane or RTU pick?
Field problem · 4th Year
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Marking seismic locations for inspection
Foreman script · 4th Year
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Missing brace at duct riser/vertical run
Field problem · 4th Year
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Missing sway control on long run
Field problem · 4th Year
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Movement clearance at expansion/flexible connector not left
Field problem · 4th Year
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Not adjusting for seismic bracing clearances in a high seismic zone per SMACNA guidelines
Common mistake · 4th Year
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Not confirming that duct seismic bracing is installed per the structural engineer's stamped details
Common mistake · 4th Year
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Not marking seismic locations for inspection
Field problem · 4th Year
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Not understanding difference between hanger and brace
Field problem · 4th Year
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Recognizing when seismic bracing applies
Foreman script · 4th Year
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Report a seismic brace you moved
Foreman script · 2nd Year
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Rod bracing installed with no lateral restraint
Field problem · 4th Year
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Rod bracing installed with no lateral restraint
Foreman script · 4th Year
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Seismic Anchors And Angle
Field problem · 4th Year
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Seismic Anchors And Angle
Foreman script · 3rd Year
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Seismic Brace Attachment to Structure
Field problem · 4th Year
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Seismic Brace Attachment to Structure
Foreman script · 3rd Year
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Seismic Bracing Spacing and Angles
Field problem · 4th Year
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Seismic Bracing Spacing and Angles
Foreman script · 3rd Year
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Seismic Clearance At Penetrations
Field problem · 4th Year
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Seismic Clearance At Penetrations
Foreman script · 3rd Year
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Seismic brace blocks access to damper/equipment
Field problem · 4th Year
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Seismic brace blocks access to damper/equipment
Foreman script · 4th Year
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Seismic category/importance factor with foreman not verified
Field problem · 4th Year
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Seismic inspection is tomorrow - what should I pre-walk?
Field problem · 4th Year
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Seismic restraint omitted on heavy equipment connection
Field problem · 4th Year
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Seismic restraint omitted on heavy equipment connection
Foreman script · 4th Year
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Structural drawing/approved insert location not checked
Field problem · 4th Year
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Sway control on long run
Foreman script · 4th Year
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Touching slings, shackles, hooks, or rigging gear
Foreman script · 4th Year
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Transverse Vs Longitudinal Bracing
Field problem · 4th Year
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Transverse Vs Longitudinal Bracing
Foreman script · 3rd Year
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Understanding difference between hanger and brace
Foreman script · 4th Year
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Using correct hardware for brace assembly
Foreman script · 4th Year
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Using field-made brace not allowed by spec
Field problem · 4th Year
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Verifying seismic category/importance factor with foreman
Foreman script · 4th Year
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What should I check before touching slings, shackles, hooks, or rigging gear?
Field problem · 4th Year
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What should I know about crane hand signals as an apprentice?
Field problem · 4th Year
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What should an apprentice know before a crane pick or lift day starts?
Field problem · 4th Year
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What's the proper way to swage a Gripple or cable lock for a seismic sway brace?
Apprentice question · 3rd Year
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When Seismic Bracing Is Required
Field problem · 4th Year
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When Seismic Bracing Is Required
Foreman script · 3rd Year
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When seismic bracing applies not recognized
Field problem · 4th Year
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Wrong brace direction for lateral load
Field problem · 4th Year
Check first
A 45-degree offset travel piece hits a seismic brace or cable
Field problem · 2nd Year
Check first
A duct run only has side-to-side seismic bracing
Field problem · 2nd Year
Check first
A fan or terminal unit swings on long hanger rods
Field problem · 2nd Year
Check first
Beam clamps slide on a sloped flange from vibration
Field problem · 2nd Year
Check first
Building a custom air handling cabinet without consulting the manufacturer's structural requirements
Common mistake · 2nd Year
Check first
Can I move or cut a seismic cable to make my 45-degree offset fit?
Apprentice question · 3rd Year
Check first
Does duct seismic bracing need lateral and longitudinal restraint?
Apprentice question · 3rd Year
Check first
How do I stop a fan or terminal unit from swaying on long hanger rods?
Apprentice question · 3rd Year
Check first
Not cross-checking duct elevations against the structural and plumbing BIM model
Common mistake · 2nd Year
Check first
Seismic bracing crosses my round duct route
Field problem · 2nd Year
Check first
Seismic bracing crosses my round duct route
Apprentice question · 3rd Year
Check first
Seismic restraint cables are left too loose
Field problem · 2nd Year
Check first
Should seismic restraint cables have slack in them?
Apprentice question · 3rd Year
Check first
Spring Isolator Selection for VAV
Field problem · 2nd Year
Check first
Spring Isolator Selection for VAV
Foreman script · 2nd Year
Standard
A rigid seismic brace crosses a canvas connector
Field problem · 1st Year
Reference
Seismic Brace Symbols and Details
Reference · 1st Year
Reference
Seismic and Sway Bracing Basics
Reference · 1st Year
Reference
Seismic brace layout measurement
Reference · 1st Year