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STEEL

Municipal Code of Chicago tit. 14B, ch. 14B-22
in effect

Municipal Code of Chicago § 14B-22-2200 Defined terms.

14B-22-2200 Defined terms. Where provisions of Chapter 22 of IBC are adopted by reference, the following terms shall be reset in italic type: "cold-formed steel construction"; "light-frame construction"; "seismic force-resisting system"; "steel joist" and "structural steel element."

Municipal Code of Chicago § 14B-22-2202 Identification of steel for structural purposes.

14B-22-2202 Identification of steel for structural purposes. The provisions of Section 2202 of IBC are adopted by reference without modification.

Municipal Code of Chicago § 14B-22-2203 Protection of steel for structural purposes.

14B-22-2203 Protection of steel for structural purposes. The provisions of Section 2203 of IBC are adopted by reference without modification.

Municipal Code of Chicago § 14B-22-2204 Connections.

14B-22-2204 Connections. The provisions of Section 2204 of IBC are adopted by reference with the following modification: 1. Revise Section 2204.3 by replacing "approved" with "permitted."

Municipal Code of Chicago § 14B-22-2205 Structural steel.

14B-22-2205 Structural steel. The provisions of Section 2205 of IBC are adopted by reference with the following modifications: 1. Revise Section 2205.2.1.2 to read: "2205.2.1.2 Seismic Design Category D. Structures assigned to Seismic Design Category D shall be designed and detailed in accordance with AISC 341, except as permitted in ASCE 7, Table 15.4-1." 2. Revise item 1 to Section 2205.2.2 to read: "1. The structure is assigned to Seismic Design Category D except as permitted in ASCE 7, Table 15.4-1."

Municipal Code of Chicago § 14B-22-2206 Composite structural steel and concrete structures.

14B-22-2206 Composite structural steel and concrete structures. The provisions of Section 2206 of IBC are adopted by reference without modification.

Municipal Code of Chicago § 14B-22-2207 Steel joists.

14B-22-2207 Steel joists. The provisions of Section 2207 of IBC are adopted by reference with the following modifications: 1. Revise Section 2207.4 by replacing "approved construction documents" with "permitted construction documents." 2. Revise Section 2207.5 by replacing "approved construction documents" with "permitted construction documents."

Municipal Code of Chicago § 14B-22-2211 Cold-formed steel light-frame construction.

14B-22-2211 Cold-formed steel light-frame construction. The provisions of Section 2211 of IBC are adopted by reference with the following modifications: 1. Revise Section 2211.1.1.2 to read: "2211.1.1.2 Seismic Design Category D. In cold-formed steel light-frame construction assigned to Seismic Design Category D the seismic force-resisting system shall be designed and detailed in accordance with AISI S400." 2. Revise Section 2211.1.2 to read: "2211.1.2 Prescriptive framing. Group R-5 occupancies, less than or equal to three stories above grade plane, shall be permitted to be constructed in accordance with AISI S230 subject to the limitations therein, provided that the building may contain up to three dwelling units." 3. Add a new Section 2211.3 to read: "2211.3 Vertical shaft enclosures in buildings greater than 55 feet in height. In buildings of cold-formed steel light-frame construction greater than 55 feet (19.8 m) in building height, shaft enclosures required by Section 713 to have a fire-resistance rating greater than 1 hour shall be constructed of structural masonry or concrete."

Municipal Code of Chicago § 14B-22-2212 Cast iron.

14B-22-2212 Cast iron. The following language is adopted as a new Section 2212: "2212. CAST IRON 2212.1 General. The structural use of cast iron elements in buildings, structures and portions thereof shall be in accordance with ASTM A48. 2212.2 Minimum thickness. The minimum thickness of cast iron shall be not less than the following: 1. For columns, one-twelfth the smallest dimension of cross section with a minimum thickness of 3/4 inch (19 mm). 2. For bases and flanges, 1 inch (25 mm) and reinforced with fillets and brackets. 3. For lintels, 3/4 inch (19 mm) and limited to a maximum span of six feet (1829 mm). 2212.3 Limitations. Cast iron columns shall not be used where subject to eccentric loads that produce a net tension in the material, nor in any part of a structural frame which is required to resist stress due to wind. (Amend Coun. J. 2-19-20, p. 14473, Art. II, § 82)
Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2667311Fetched: 10/24/2026

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