Los Angeles Municipal Code Div. 22 Steel

(Amended by Ord. No. 188,797, Eff. 12/31/25.)

Section

• 91.2200 Basic Provisions.

• 91.2201 General.

• 91.2202 Structural Steel and Composite Structural Steel and Concrete.

(Amended by Ord. No. 188,797, Eff. 12/31/25.)

Chapter 22 of the CBC is adopted by reference with the following exceptions, modifications and additions:

(Added by Ord. No. 188,797, Eff. 12/31/25.)

Section 2201 of the CBC is adopted by reference, except CBC Section 2201.4 of the CBC is not adopted; and, in lieu, LAMC Subsection 91.2201.4 is added.

91.2201.4. Connections. The design and installation of steel connections shall be in accordance with the applicable referenced standards within this chapter. The details of design, work quality and technique for welding, inspection of welding and qualification of welding operators shall conform to the requirements listed in CBC Sections 2201, and 2202. For special inspection of welding or installation of high-strength bolts, see CBC Section 1705.2.

All welding, except when performed at the shop of an approved fabricator, shall be done by operators certified by the Department for the type of operation involved in accordance with the provisions of LAMC Section 91.1705.

Complete details of location, type, size and amount of all welds shall be clearly shown on the plans. Where symbols are used on the plans, they shall be the “Standard Welding Symbols”, AWS A 2.4, of the American Welding Society (AWS). When it is necessary to use a special erection sequence of welding to minimize locked-up stresses or distortion, the Department may require the erection sequence of welding to be shown on the plans.

Welding procedures are qualified if they are in accordance with the AWS. Other welding procedures require special qualification approval by the Department. Each application for a special qualification shall be accompanied by a fee of $50.00.

(Added by Ord. No. 188,797, Eff. 12/31/25.)

Section 2202 of the CBC is adopted by reference and LAMC Subsection 91.2202.3.3 is added.

91.2202.3.3. Section F2. Modify Section F2.5 Item (5b) by adding the following:

(d) The use of rectangular HSS are not permitted for bracing members, unless filled solid with cement grout having a minimum compressive strength of 3000 psi (20.7 MPa) at 28 days. The effects of composite action in the filled composite brace shall be considered in the sectional properties of the system where it results in the more severe loading condition or detailing.