American Institute of Steel Construction
AISC
AISC governs how structural steel frames are fabricated and put up, and its Code of Standard Practice sets the trade customs the whole job runs on: what a connection has to develop, how bolts get installed, and what erection tolerances the frame is held to. On site it shows up as the questions asked before a floor is decked and before the crane leaves: are the connections complete, are the bolts installed to the right condition, is the frame plumb and to line.
Adoption varies by jurisdiction. Confirm the edition your authority having jurisdiction enforces before you run a walk against it.
What it covers
- Connection type and completeness, from shear tabs to moment connections
- Bolt installation condition: snug-tight versus pretensioned joints
- Erection tolerances for plumb, level and column line
- Camber in beams and its direction at installation
- Field modifications, weld access and the Code of Standard Practice trade rules
What the evidence looks like
- Every bolted joint photographed with its condition clear: snug-tight joints made up, pretensioned joints showing the installation method used.
- Connections photographed complete before load comes on, not with a row of holes still open and a promise to return.
- Plumb and column-line checks documented with the reading in frame, not asserted in a note.
- Camber confirmed installed the right way up, photographed before decking hides the beam.
- Field cuts, holes or reinforcing photographed and referred to the engineer rather than closed over.
Checklists that verify work against AISC
3 free checklists, each with the photo every item needs before it can be submitted.
Common questions
- What is AISC?
- Structural steel buildings and the Code of Standard Practice: connections, bolting, erection. It is published by the American Institute of Steel Construction. AISC governs how structural steel frames are fabricated and put up, and its Code of Standard Practice sets the trade customs the whole job runs on: what a connection has to develop, how bolts get installed, and what erection tolerances the frame is held to. On site it shows up as the questions asked before a floor is decked and before the crane leaves: are the connections complete, are the bolts installed to the right condition, is the frame plumb and to line.
- What does AISC cover?
- Connection type and completeness, from shear tabs to moment connections; Bolt installation condition: snug-tight versus pretensioned joints; Erection tolerances for plumb, level and column line; Camber in beams and its direction at installation; Field modifications, weld access and the Code of Standard Practice trade rules.
- What does a field inspection against AISC look at?
- Every bolted joint photographed with its condition clear: snug-tight joints made up, pretensioned joints showing the installation method used. Connections photographed complete before load comes on, not with a row of holes still open and a promise to return. Plumb and column-line checks documented with the reading in frame, not asserted in a note. Camber confirmed installed the right way up, photographed before decking hides the beam. Field cuts, holes or reinforcing photographed and referred to the engineer rather than closed over.
- Which edition of AISC applies to my project?
- Adoption varies by jurisdiction. Confirm the edition your authority having jurisdiction enforces before you run a walk against it.
- Which checklists verify work against AISC?
- 3 free checklists in the RTI library reference this family. Each is listed on this page with the photo evidence every item needs before it can be submitted.
A standard is only met if the evidence exists
RTI holds the submit button until every mandatory item is answered and the photos are attached, then chains the record so it can be proven untouched later.