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Chapter 3 Special Inspections Classification

assemblies is being performed on the premises of a fabricator's shop, special inspection of the fabricated items shall be required by this section and as required elsewhere in the NCSBC.

NCSBC -1704.2.1 Fabrication and implementation procedures. The special inspector shall verify that the fabricator maintains detailed fabrication and quality control procedures that provide a basis for inspection control of the workmanship and the fabricator's ability to conform to approved construction documents and referenced standards. The special inspector shall review the procedures for completeness and adequacy relative to the code requirements for the fabricator's scope of work.

Exception: Special inspections as required by Section 1704.2 shall not be required where the fabricator is approved in accordance with Section 1704.2.2.

NCSBC -1704.2.2 Fabricator approval. Special inspections required by this code are not required where the work is done on the premises of a fabricator registered and approved to perform such work without special inspection. Approval shall be based upon review of the fabricator's written procedural and quality control manuals and periodic auditing of fabrication practices by an approved special inspection agency. At completion of fabrication, the approved fabricator shall submit a certificate of compliance to the building official stating that the work was performed in accordance with the approved construction documents.

SICC-302.2 Structural steel (See SICC-2007 Chapter 6).

a. Steel fabricators. Special inspections of the fabrication process are required, for all steel fabricated assemblies that are themselves subject to special inspections, except as exempted in NCSBC-1704.3.

NCSBC -1704.3 Exceptions:

1. Special inspection of the steel fabrication process shall not be required where the fabricator does not perform any welding, thermal cutting or heating operation of any kind as part of the fabrication process. In such cases, the fabricator shall be required to submit a detailed procedure for material control that demonstrates the fabricator's ability to maintain suitable records and procedures such that, at any time during the fabrication process, the material specification, grade and mill test reports for the main stress carrying elements are capable of being determined.

    • 2.

      The special inspector need not be continuously present during welding of the following items, provided the materials, welding procedures and qualifications of welders are verified prior to the start of the work; periodic inspections are made of the work in progress; and a visual inspection of all welds is made prior to completion or prior to shipment of shop welding.

      • 2.1.

        Single pass fillet welds not exceeding 5/16 inch (7.9 mm) in size.

      • 2.2.

        Floor and roof deck welding.

      • 2.3.

        Welded studs when used for structural diaphragm.

      • 2.4.

        Welded sheet steel for cold formed steel framing members such as studs and joists.

      • 2.5.

        Welding of stairs and railing systems.

  • b.

    The SIER shall inspect steel elements, welding material, and high strength bolts for conformance with

NCSBC Table 1704.3 to include the Seismic-force resisting-systems identified in the Quality Assurance Plan.

SICC-302.3 Cast-in-place concrete (See SICC-2007 Chapter 7).

a. Components. All structural elements of cast-in-place concrete, including reinforced, prestressed, or post-tensioned concrete elements, and concrete topping on stay-in-place steel decking, both composite

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