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ST. BARBARA CATHOLIC SCHOOL TASK 2 75-24272-01 <br />DIOCESE OF ORANGE SEPTEMBER 12TH, 2024 <br />SANTA ANA, CA BID & PERMIT SET <br /> <br />METAL BUILDING SYSTEMS 133419 - 8 <br />2.4 STRUCTURAL-STEEL FRAMING <br />A. Structural Steel: Comply with AISC 360, "Specification for Structural Steel Buildings." <br />B. Bolted Connections: Comply with RCSC's "Specification for Structural Joints Using High - <br />Strength Bolts." <br />C. Cold-Formed Steel: Comply with AISI's "North American Specification for the Design of Cold - <br />Formed Steel Structural Members" for design requirements and allowable stresses. <br />D. Primary Framing: Manufacturer's standard primary-framing system, designed to withstand <br />required loads and specified requirements. Primary framing includes transverse and lean-to <br />frames; rafters, rake, and canopy beams; and corner columns; and wind bracing. <br />1. General: Provide frames with attachment plates, bearing plates, and splice members. <br />Factory drill for field-bolted assembly. Provide frame span and spacing indicated. <br />a. Slight variations in span and spacing may be acceptable if necessary to comply with <br />manufacturer's standard, as approved by Architect. <br />2. Rigid Clear-Span Frames: Square-shaped frame sections fabricated from shop-welded, <br />built-up steel plates or structural-steel shapes. Interior columns are not permitted. <br />3. Frame Configuration: One-directional, sloped. <br />4. Exterior Column: Uniform depth. <br />5. Rafter: Uniform depth. <br />E. Secondary Framing: Manufacturer's standard secondary framing, including purlins, girts, eave <br />struts, flange bracing, base members, gable angles, clips, headers, jambs, and other miscellaneous <br />structural members. Unless otherwise indicated, fabricate framing from either cold-formed, <br />structural-steel sheet or roll-formed, metallic-coated steel sheet, prepainted with coil coating, to <br />comply with the following: <br />1. Purlins: <br />a. C-, Z- or rectangular-shaped sections; fabricated from built-up steel plates, steel <br />sheet, or structural-steel shapes; minimum 2-1/2-inch- wide flanges. <br />b. Steel joists of depths indicated on Drawings. <br />1) Depth: As needed to comply with system performance requirements. <br />2. Eave Struts: Unequal-flange, C- or rectangular-shaped sections; fabricated from built-up <br />steel plates, steel sheet, or structural-steel shapes; to provide adequate backup for metal <br />panels. <br />3. Purlin Clips: Manufacturer's standard clips fabricated from steel sheet. Provide galvanized <br />clips where clips are connected to galvanized framing members. <br />4. Miscellaneous Structural Members: Manufacturer's standard sections fabricated from cold- <br />formed, structural-steel sheet; built-up steel plates; or zinc-coated (galvanized) steel sheet; <br />designed to withstand required loads.