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The IBC and AISC 303 Code of Standard Practice for Steel Buildings and Bridges

The Commentary in Section 1.1 of AISC 303-16 Code of Standard Practice for Steel Buildings and Bridges notes that some provisions in the Code have been incorporated by reference into the International Building Code (IBC). Here's how:

  1. Chapter 22 in the 2015 IBC incorporates both AISC 360-10 Specification for Structural Steel Buildings and AISC 341-10 Seismic Provisions for Structural Steel Buildings by reference for design and construction requirements.
  2. Similarly, IBC Chapter 17 incorporates these same two documents by reference for inspection requirements.
  3. In turn, both AISC 360-10 and AISC 341-10 invoke certain requirements in AISC 303-10.

In AISC 360-10, the following references are made:

  • Section A1 refers to the Code definition of structural steel in scoping the intent of the AISC Specification.
  • Section A4 requires that structural design drawings and specifications shall meet the requirements in the Code.
  • Chapter C (Section C2.2, specifically, and others) uses the Code erection tolerance to define the notional load used in the stability design; it also explicitly permits alternative notional loading when a different tolerance is used.
  • Section M2.7 refers to Code Section 6 for dimensional tolerances.
  • Section M3.1 refers to Code Section 6 for painting requirements.
  • Sections M4.1 and M4.2 refer to Code Section 7 for column base placement, erection tolerance, and temporary bracing requirements.
  • Section N2 refers to Code Section 6.1 for material identification and Sections 6 and 7.13 for fabrication and erection tolerances.
  • Section N3 refers to Code Sections 4 and 4.4 for shop and erection drawing submittals.

In AISC 341-10, Section A1 invokes the requirements of AISC 360, which means all of the foregoing items also apply when AISC 341 is applicable. Also:

  • Section A4.1 reiterates the requirement that structural design drawings and specifications shall meet the requirements in the Code.
  • Sections I1.1 and I1.2 require that shop drawings and erection drawings, respectively, must meet the requirements of the Code.
  • Chapter J makes several references to the foregoing Sections in Chapter N in AISC 360.

Currently, the 2018 IBC is being written. It is anticipated that the foregoing incorporations by reference of AISC 360-16 and AISC 341-16, and AISC 303-16 in turn will continue.