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Orange County Architectural Renovations Smith Sinnett / 2023036 <br />Hillsborough, NC Orange County Asset Management Services <br />METAL FABRICATIONS 05 50 00 - 4 <br />2.7 FABRICATION, GENERAL <br />A. Shop Assembly: Preassemble items in the shop to greatest extent possible. Disassemble units only as necessary <br />for shipping and handling limitations. Use connections that maintain structural value of joined pieces. Clearly <br />mark units for reassembly and coordinated installation. <br />B. Cut, drill, and punch metals cleanly and accurately. Remove burrs and ease edges to a radius of approximately <br />1/32 inch, unless otherwise indicated. Remove sharp or rough areas on exposed surfaces. <br />C. Form bent-metal corners to smallest radius possible without causing grain separation or otherwise impairing <br />work. <br />D. Form exposed work true to line and level with accurate angles and surfaces and straight edges. <br />E. Weld corners and seams continuously to comply with the following: <br />1. Use materials and methods that minimize distortion and develop strength and corrosion resistance of <br />base metals. <br />2. Obtain fusion without undercut or overlap. <br />3. Remove welding flux immediately. <br />4. At exposed connections, finish exposed welds and surfaces smooth and blended so no roughness shows <br />after finishing and contour of welded surface matches that of adjacent surface. <br />F. Form exposed connections with hairline joints, flush and smooth, using concealed fasteners where possible. <br />Where exposed fasteners are required, use Phillips flat-head (countersunk) screws or bolts, unless otherwise <br />indicated. Locate joints where least conspicuous. <br />G. Fabricate seams and other connections that will be exposed to weather in a manner to exclude water. Provide <br />weep holes where water may accumulate. <br />H. Cut, reinforce, drill, and tap metal fabrications as indicated to receive finish hardware, screws, and similar items. <br />I. Provide for anchorage of type indicated; coordinate with supporting structure. Space anchoring devices to <br />secure metal fabrications rigidly in place and to support indicated loads. <br />1. Where units are indicated to be cast into concrete or built into masonry, equip with integrally welded <br />steel strap anchors, 1/8 by 1-1/2 inches, with a minimum 6-inch embedment and 2-inch hook, not less <br />than 8 inches from ends and corners of units and 24 inches o.c., unless otherwise indicated. <br />2.8 MISCELLANEOUS FRAMING AND SUPPORTS <br />A. General: Provide steel framing and supports not specified in other Sections as needed to complete the Work. <br />B. Fabricate units from steel shapes, plates, and bars of welded construction, unless otherwise indicated. Fabricate <br />to sizes, shapes, and profiles indicated and as necessary to receive adjacent construction retained by framing and <br />supports. Cut, drill, and tap units to receive hardware, hangers, and similar items. <br />1. Fabricate units from slotted channel framing where indicated. <br />2. Furnish inserts if units are installed after concrete is placed. <br />C. Fabricate supports for operable partitions from continuous steel beams of sizes indicated with attached bearing <br />plates, anchors, and braces as indicated. Drill bottom flanges of beams to receive partition track hanger rods; <br />locate holes where indicated on operable partition Shop Drawings. <br />D. Galvanize miscellaneous framing and supports where indicated. <br />E. Prime miscellaneous framing and supports with zinc-rich primer where indicated. <br />2.9 LOOSE STEEL LINTELS <br />A. Fabricate loose steel lintels from steel angles and shapes of size indicated for openings and recesses in masonry <br />walls and partitions at locations indicated. Weld adjoining members together to form a single unit where <br />indicated. <br />B. Size loose lintels to provide bearing length at each side of openings equal to 1/12 of clear span but not less than <br />8 inches, unless otherwise indicated. <br />Docusign Envelope ID: 52FACC74-DA96-491B-B0B8-04AC3961737D