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DIVISION 22 – STEEL
13-148-010 Structural steel construction – Standards.
13-148-020 Cold-formed structural steel members.
13-148-030 Steel joist construction.
13-148-040 Lightweight metal alloys.
13-148-050 Cast iron – Compliance.
13-148-060 Cast iron – Material.
13-148-070 Cast iron – Thickness of metal.
13-148-080 Cast iron – Limitations of use.
13-148-090 Cast iron – Splicing.
13-148-100 Steel deck construction.
13-148-110 Mechanical conveyor systems – Conformance requirements.
(a) Except as provided in paragraphs (b) and (c), the design, fabrication and erection of structural steel shall be in accordance with the requirements of the following document: Structural Steel Buildings – Allowable Stress Design and Plastic Design, AISC, 1989 Edition or Load and Resistance Factor Design Specification for Structural Steel Buildings, AISC, 1986 Edition.
(b) Members of structural steel that are exposed to the weather or a corrosive atmosphere shall have a minimum thickness of 0.23 inches and shall receive another coat of metal protection of another color after erection, except for types of structural steels that have been specifically approved for use under exposure to the weather without metal protection.
(c) The requirements of the above document do not apply to steel joist construction and members formed of cold formed steel.
(Prior code § 74-1; Amend Coun. J. 11-29-89, p. 8274; Amend Coun. J. 4-12-91, p. 32356)
(a) Except as provided in paragraphs (b), (c), (d), and (e) the design, fabrication and erection of cold- formed structural steel members shall be in accordance with the requirements of the following document: Specification for the Design of Cold-Formed Steel Structural Members, AISI, 1986 Edition.
(b) Cold-formed individual structural members whose thickness is less than 0.125 inches, shall not be used to support more than 200 square feet of roof, floor or wall area.
(c) Except for steel roofing and siding, cold- formed steel members exposed to the weather or a corrosive atmosphere shall have a minimum thickness of 0.23 inches.
(d) Members, except for types of steels that have been specifically approved for use under exposure to weather without metal protection, shall be protected by an approved rust-inhibitive coating unless embedded in concrete. Members exposed to the weather or a corrosive atmosphere shall be galvanized, or have two coats of a rust-inhibitive paint.
(e) Steel deck construction using composite cold- formed steel deck concrete slabs and noncomposite concrete slabs on cold-formed steel decks shall comply with the requirements of Section 13-148-100 of this Code.
(1) Composite steel deck construction is defined as a system comprised of conventional or light- weight structural concrete placed permanently over cold-formed steel decking in which the steel deck performs the dual role of acting as a form for the concrete during construction and as positive moment reinforcement for the slab during service.
(Prior code § 74-2; Amend Coun. J. 4-12-91, p. 32356)
(a) Except as provided in subparagraph (b) of this section, the design, the fabrication and erection of steel joists shall be in accordance with the requirements of the following documents: Standard Specifications, Load Tables and Weight Tables for Steel Joists and Joist Girders, 1990 Edition, adopted by the Steel Joist Institute, which contains the Standard Specifications and Load Tables for Open Web Steel Joists, K-Series, 1989, the Standard Specifications for Longspan Steel Joists, LH-Series and Deep Longspan Steel Joists, DLH-Series, 1989, the Standard Load Table for Longspan Steel Joists, LH-Series, 1989, and the Standard Load Table for Deep Longspan Steel Joists, DLH-Series, 1989; and the Standard Specifications and Weight Tables for Joist Girders, 1989; and with the requirements of the Standard Specifications, Load Tables and Weight Tables for Steel Joists and Joist Girders, 1984 Edition, adopted by the Steel Joist Institute, for only the Standard Specifications for Open Web Steel Joists, H-Series, 1983, and the Standard Load Table, Open Web Steel Joists, H-Series, 1974.
(b) All joist materials and assemblies shall be classified as controlled materials as defined in Section 13-120-040.
(Prior code § 74-3; Amend Coun. J. 4-12-91, p. 32256)
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