The provisions of this chapter govern the quality, design, fabrication and erection of steel used structurally in buildings or structures.
Structural steel structures assigned to Seismic Design Category B or C shall be of any construction permitted in Section 2205. Where a response modification coefficient, R, in accordance with ASCE 7, Table 12.2-1 is used for the design of structural steel structures assigned to Seismic Design Category B or C, the structures shall be designed and detailed in accordance with the requirements of AISC 341.
provisions of Section 2206.2.
1. SJI CJ-1.0
2. SJI K-1.1
3. SJI LH/DLH-1.1
4. SJI JG-1.1
The registered design professional shall indicate on the construction documents the steel joist and/or steel joist girder designations from the specifications listed in Section 2207.1 and shall indicate the requirements for joist and joist girder design, layout, end supports, anchorage, non-SJI standard bridging, bridging termination connections and bearing connection design to resist uplift and lateral loads. These documents shall indicate special requirements as follows:
1. Special loads including:
1.1. Concentrated loads;
1.2. Nonuniform loads;
1.3. Net uplift loads;
1.4. Axial loads;
1.5. End moments; and
1.6. Connection forces.
2. Special considerations including:
2.1. Profiles for nonstandard joist and joist girder configurations (standard joist and joist girder configurations are as indicated in the SJI catalog);
2.2. Oversized or other nonstandard web openings; and
2.3. Extended ends.
3. Deflection criteria for live and total loads for non-SJI standard joists.
The steel joist and joist girder manufacturer shall design the steel joists and/or steel joist girders in accordance with the current SJI specifications and load tables to support the load requirements of Section 2207.2. The registered design professional may require submission of the steel joist and joist girder calculations as prepared by a registered design professional responsible for the product design. If requested by the registered design professional, the steel joist manufacturer shall submit design calculations with a cover letter bearing the seal and signature of the joist manufacturer's registered design professional. In addition to standard calculations under this seal and signature, submittal of the following shall be included:
1. Non-SJI standard bridging details (e.g.for cantilevered conditions, net uplift, etc.).
2. Connection details for:
2.1. Non-SJI standard connections (e.g.flush-framed or framed connections);
2.2. Field splices; and
2.3. Joist headers.
Steel joist placement plans shall be provided to show the steel joist products as specified on the construction documents and are to be utilized for field installation in accordance with specific project requirements as stated in Section 2207.2. Steel placement plans shall include, at a minimum, the following:
2. Profiles for nonstandard joist and joist girder configurations (standard joist and joist girder configurations are as indicated in the SJI catalog).
3. Connection requirements for:
3.1. Joist supports;
3.2. Joist girder supports;
3.3. Field splices; and
3.4. Bridging attachments.
4. Deflection criteria for live and total loads for non-SJI standard joists.
5. Size, location and connections for all bridging.
6. Joist headers.
The design strength of steel cables shall be determined by the provisions of ASCE 19 except as modified by these provisions.
1. A load factor of 1.1 shall be applied to the prestress force included in T3 and T4 as defined in Section 3.12.
2. In Section 3.2.1, Item (c) shall be replaced with “1.5 T3” and Item (d) shall be replaced with “1.5 T4.”
The following standards, as set forth in Chapter 35 of this code, are hereby adopted.
1. American Institute of Steel Construction, AISC.
b. Serviceability Design Considerations for Low-Rise Buildings, AISC.
c. Engineering for Steel Construction, AISC.
d. Detailing for Steel Construction, AISC.
e. Iron and Steel Beams - 1873 to 1952, AISC.
f. Torsional Analysis of Steel Members, AISC.
2. American Iron and Steel Institute, AISI.
e. Cold-Formed Steel Design Manual, AISI.
f. Specifications for the Design of Light-Gage Cold-Formed Stainless Structural Members, AISI.
g. Specification for the Criteria for Structural Application of Steel Cables for Buildings, AISI.
i. Design Manual for Structural Tubing, AISI.
3. American National Standards Institute/American Society of Civil Engineers, ANSI/ASCE.
b. Specifications for the Design of Cold-Formed Stainless Steel Structural Members, ANSI/ASCE 8.
4. American National Standards Institute/American Welding Society, ANSI/AWS.
a. Standard Welding Procedure and Performance Qualification, AWS B2.1.
b. Recommended Practice for Stud Welding, AWS C5.4.
c. Structural Welding Code—Steel, ANSI/AWS D1.1.
d. Structural Welding Code—Sheet Metal, AWS D1.3.
e. Structural Welding Code—Reinforcing Steel, ANSI/AWS D1.4.
f. Specification for Welding of Sheet Metal, AWS D9.1.
g. Standard for Qualification of Welding Procedures and Welders for Piping and Tubing, AWS D10.9.
5. American Society for Testing and Materials, ASTM.
a. Standard Specification for General Requirements for Rolled Steel Plates, Shapes, Sheet Piling and Bars for Structural Use, ASTM A 6.
c. Standard Specification for Heat-Treated Steel Structural Bolts. 150 KSI Minimum Tensile Strength, ASTM A 490.
d. Standard Specification for General Requirements for Steel Sheet, Zinc Coated (Galvanized) by the Hot Dip Process, ASTM A 525.
6. National Association of Architectural Metal Manufacturers, NAAMM.
a. Metal Grating Manual, NAAMM.
8. Research Council on Structural Connections of the Engineering Foundation, RCSCEF.
a. Specification for Structural Joints Using ASTM A 325 or A 490 Bolts, RCSCEF.
10. Steel Deck Institute, Inc., SDI.
f. Diaphragm Design Manual, SDI.
g. SDI-C-2011 Standard for Composite Steel Floor Deck Slabs.
11. Steel Joist Institute, SJI.
a. Standard Specifications, Load Tables and Weight Tables for Steel Joists and Joist Girders, SJI.
e. “Welding of Open Web Steel,” Technical Digest No. 8, SJI.
g. 60-Year Steel Joist Manual, SJI.
14. Welded Steel Tube Institute, Inc., WSTI.
a. Manual of Cold Formed Welded Structural Steel Tube.
Positive attachment of sheets shall be provided to resist uplift forces. Attachment shall be as set forth in Section 2222.3.1 and as required by rational analysis, and/or tests, but not less frequently than the following maximum spacing:
1. One fastener shall be placed near the corner of each sheet or at overlapping corners of sheets.
2. Along each supporting member, the spacing of fasteners shall not exceed 8-inches (203 mm) on centers at ends of sheets or 12-inches (305 mm) on
3. The spacing of edge fasteners between panels, and between panels and supporting members, parallel to the direction of span, where continuous interlock is not otherwise provided shall be not more than 12-inches (305 mm) on center.
4. Fastening shall be by bolting, welding or other approved fastening device that provides a resistance to lateral movement as required by rational analysis or by test, but not less than 400 pounds per lineal foot (5838 N/m).
5. Poured lightweight concrete fill will be acceptable as continuous interlock.
6. Attachment to the supporting structure shall be provided at all perimeters and discontinuities by fasteners spaced at no more than 8-inches (203 mm) on center.
Metal siding and roof panels shall be not less than 24 gauge.
CHAIN LINK FENCE MINIMUM REQUIREMENTS
|Fence Height (ft)||Terminal Post Dimensions |
(o.d. x wall
|Line Post Dimensions |
(o.d. x wall
|Terminal Post Concrete|
(diameter x depth)
|Line Post Concrete|
(diameter x depth)
|Up to 4||2 3/8 × 0.042||1 5/8 × 0.047||10 × 24||8 × 24|
|Over 4 to 5||2 3/8 × 0.042||1 7/8 × 0.055||10 × 24||8 × 24|
|Over 5 to 6||2 3/8 × 0.042||1 7/8 × 0.065||10 × 24||8 × 24|
|Over 6 to 8||2 3/8 × 0.110||2 3/8 × 0.095||10 × 36||10 × 36|
|Over 8 to 10||2 7/8 × 0.110||2 3/8 × 0.130||12 × 40||10 × 40|
|Over 10 to 12||2 7/8 × 0.160||2 7/8 × 0.120||12 × 42||12 × 42|