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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 - 6 <br />2.2 SYSTEM DESCRIPTION (LUNCH SHELTER) <br />A. Provide a complete, integrated set of mutually dependent components and assemblies that form a <br />metal building system capable of withstanding structural and other loads. <br />B. Primary-Frame Type: <br />1. Rigid Clear Span: Solid-member, structural-framing system without interior columns. <br />C. Secondary-Frame Type: Manufacturer's standard purlins and joists. <br />D. Eave Height: Manufacturer's standard height, as indicated by nominal height on Drawings. <br />E. Bay Spacing: As indicated on Drawings. <br />F. Roof Slope: Manufacturer's standard for frame type required. <br />G. Roof System: Manufacturer's standard 2 ½” deep W shaped metal roof panels. <br />1. Liner Panels: Tapered rib. <br />2.3 PERFORMANCE REQUIREMENTS <br />A. Delegated Design: Engage a qualified professional engineer, as defined in Section 014000 <br />"Quality Requirements," to design lunch shelter and metal perforated screenwall system. <br />B. Structural Performance: Metal building systems to withstand the effects of gravity loads and the <br />following loads and stresses within limits and under conditions indicated according to procedures <br />in MBMA's "Metal Building Systems Manual." <br />1. Design Loads: As indicated on Drawings. <br />2. Deflection and Drift Limits: <br />a. Design metal building system assemblies to withstand serviceability design loads <br />without exceeding deflections and drift limits recommended in AISC Steel Design <br />Guide No. 3 "Serviceability Design Considerations for Steel Buildings." <br />b. No greater than the following: <br />1) Purlins and Rafters: Vertical deflection of 1/240 of the span. <br />2) Metal Roof Panels: Vertical deflection of 1/240 of the span. <br />3) Design secondary-framing system to accommodate deflection of primary <br />framing and construction tolerances, and to maintain clearances at openings. <br />4) Lateral Drift: Maximum of 1/200 of the building height. <br />C. Seismic Performance: Metal building system to withstand the effects of earthquake motions <br />determined according to ASCE/SEI 7-16. <br />D. Thermal Movements: Allow for thermal movements from ambient and surface temperature <br />changes by preventing buckling, opening of joints, overstressing of components, failure of joint