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20 December 2007 05500-1 REY KEO 07001 SECTION 05500

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20 December 2007 05500-1 REY KEO 07001 SECTION 05500 SECTION 05500 MISCELLANEOUS METALS 1.00 GENERAL 1.01 WORK INCLUDED Furnish labor, materials, equipment and incidentals necessary to fabricate and install miscellaneous metals and other ornamental or specialty work. Furnish hangers, support, and brackets necessary to fasten other work. 1.02 QUALITY ASSURANCE Field welding shall be performed by experienced operators, qualified in conformance with "Standard Qualifications Procedure" of the AWS "Structural Welding Code". 1.03 SUBMITTALS Submittals shall be in accordance with Section 01300, SUBMITTALS and shall include: A. Shop drawings showing fabricated items B. Product data sheets for manufactured components C. List as necessary 1.04 REFERENCES AND STANDARDS A. The applicable provisions of the following standards shall apply as if written here in their entirety: B. Federal Specifications (Fed Spec): FF-B-561D Bolt, (Screw) Lag FF-P-575C Bolt, Hexagon and Square FF-B-588C Bolt, Toggle, and Expansion Sleeve, Screw FF-S-85 Screws, Cap, Slotted and Hexagon-Head FF-S-92 Screws, Machine: Slotted, Cross-Recessed or Hexagon Head FF-N-105B Nails, Brads, Staples and Spikes, Wire, cut and Wrought FF-N-836D Nuts, Square, Hexagon, Cap, Slotted, Castle Knurled, Welding and Single Ball Seat FF-P-395 Power Actuated Drive Pins FF-S-111 Screw, Wood FF-S-325 Shield, Expansion: Nail, Expansion; and Nail, Drive Screw (Devices, Anchoring, Masonry) FF-W-84 Washers, Lock (Spring) RR-G-661 Gratings, Metal TT-P-645 Primer, Paint, Zinc Chromate, Alkyd Type TT-V-51 Varnish; Asphalt C. The Aluminum Association (AA) publications: 20 December 2007 05500-1 REY KEO 07001 SAA-46 Standards for Architectural Aluminum DAF-45 Designation System for Aluminum Finishes ABH-21 Aluminum Brazing Handbook ADS-1 Aluminum Standards and Data D. American Society for Testing and Materials (ASTM) publications: ASTM A6 Specification for General Requirements for Rolled Structural Steel Bars, Plates, Shapes, and Sheet Piling ASTM A27 Specification for Steel Castings, Carbon, for General Application ASTM A36 Specification for Carbon Structural Steel ASTM A48 Specification for Gray Iron Castings ASTM A53 Specification for Pipe, Steel, Black and Hot-Dipped, Zinc- Coated, Welded and Seamless Steel Pipe ASTM A123 Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products ASTM A148 Specification for Steel Castings, High Strength, for Structural Purposes ASTM A153 Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware ASTM A325 Specification for Structural Bolts, Steel, Heat Treated, 120/105ksi minimum Tensile Strength ASTM A354 Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other Externally Threaded Parts ASTM A490 Specification for Structural Bolts, Alloy Steel, Heat Treated, 150 ksi minimum Tensile Strength ASTM A653 Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc- Iron Alloy-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process ASTM A668 Specification for Steel forgings, Carbon and Alloy, for General Industrial Use ASTM B308 Specification for Aluminum-Alloy 6061-T6 Standard Structural Profiles E. American National Standards Institute (ANSI) publication: ANSI A14.3 Safety Code for Fixed Ladders F. American Welding Society (AWS) standard: AWS D1.1 Structural Welding Code - Steel AWS D1.2 Structural Welding Code - Aluminum AWS D1.3 Structural Welding Code - Sheet Steel G. Steel Structures Painting Council (SSPC) publications: Steel Structures Painting Manual, Volume 2 H. National Association of Architectural Metal Manufacturers Association (NAAMA) publications: 20 December 2007 05500-2 REY KEO 07001 AMP 500 Metal Finishes Manual AMP 504 Finishes for Carbon Steel and Iron "Stair Manual" 1.05 DELIVERY AND STORAGE Ship expansion joints to site in protective coverings. All aluminum which will be exposed to view shall have strippable protective coverings applied at the factory and removed after erection. 1.06 JOB CONDITIONS A. Contractor shall verify dimensions and take field measurements necessary to establish size and connections prior to fabrication. Provide any anchors, brackets, supports, braces, connections and fasteners necessary to assemble the various components and anchor into position into the structure. B. Each component shall be of adequate size and strength necessary to fulfill its function. Failure of any part of the assembly is cause to reject the entire component. Component shall be assembled in a neat and substantial manner. Joints exposed to the weather shall be formed in a manner to exclude water. C. Provide miscellaneous plates, brackets, frames, anchors and other steel fabrications as indicated on the drawings or required to make connections to components furnished under other sections of the specifications. Provide brackets for elevators and rails, precast concrete panels, and frames for mechanical equipment. 2.00 PRODUCTS 2.01 MATERIALS A. STRUCTURAL STEEL: ASTM A36 having a minimum yield strength of not less than 36,000 psi. B. MISCELLANEOUS STEEL: Rolled shapes complying with ASTM A36; plates and bars complying with ASTM A6. C. STRUCTURAL CAST STEEL: Conforming to ASTM A148, Grade 80-50. D. GENERAL PURPOSE CAST STEEL: Conforming to ASTM A27, Grade 65-35. E. STEEL FORGING: General purpose, conforming to ASTM A668, Class C or F. F. CAST IRON: Soft, gray iron, conforming to ASTM A48, Class 30, has 30,000 psi tensile strength. G. GALVANIZING: Hot dipped, conforming to ASTM A123. H. WELDING ELECTRODES: Appropriate for the intended usage. Electrodes for arc welding shall be series E70. 20 December 2007 05500-3 REY KEO 07001 I. ALUMINUM: Appropriate for the intended usage. Alloys shall comply with the following: ALLOY USAGE 6061 Extruded or rolled structural shapes 6063 Extrusions, general (Pipe rails) 3003 Sheet, tube or pipe 5005 General purpose sheet 5056 Nails and Rivets 2024 Screws, bolts and nuts J. STAINLESS STEEL: Appropriate for the intended usage, complies with AISI Type 316. Finish shall be No. 2, Dull l. K. FASTENERS: AISI Type 316 Stainless Steel unless noted otherwise: 1. Structural Bolts – AISI Type 316 Stainless Steel. 2. Nails and Spikes - Fasteners complying with Fed. Spec. IV. FF-P-636. 3. Self-Drilling Fasteners (SDF) - Corrosive resistant, hex-headed drill pointed, size as appropriate. 4. Powder Activated Fasteners (PAF) - Tempered A-151 steel with a minimum tensile strength of 270,000 psi, complying with Fed. Spec. - P3958, Ramset, Hilti, or approved equal. 5. Sleeve Bolts - Molly "Parasleeve" or Ramset "Dynabolt". 6. Concrete Expansion Bolts – Stainless Steel Hilti "KwikBolt II". 7. CMU Fastener - Hilti "KwikTog". 8. Metal Deck Fasteners - Corrosive resistant, hexheaded, drill pointed fasteners, Teks or equal. 9. Self-Drilling Anchors - Zinc-plated, case hardened body with expanding plug, Red Head “Self Drill” or Hilti “Kwik-Pro”. 10. Adhesive Anchor System – Hilti “Hit Hy 150” , HSE 2421, or “HITHY20”. L. STEEL PIPE: Welded or seamless types, standard weight, Schedule 40 steel tubing conforming to ASTM A53. Steel tube shall conform to ASTM A500, Grade B. M. ANCHORS AND BOLTS: Anchors and bolts shall be AISI Type 316 stainless steel. N. STUD ANCHORS: Stainless steel, type 18-8 anchors as manufactured by Nelson Stud Anchors, or equal. O. ALUMINUM SILLS: Extruded of 6063-T52 alloy, J.C. Braum & Company, model AA, complete with SA-100 anchor clips. P. BIRD SCREEN: Conforming to Fed Spec RR-W-360, Type I, Class 1, 2 by 2 mesh, 0.063" diameter aluminum wire. Color to match louver. Q. STEEL PLATE: Furnish steel plate for fabrication as indicated on the drawings. Furnish 1/4" or 3/8" thick checkered steel plate where indicated. 20 December 2007 05500-4 REY KEO 07001 R. ZINC-RICH COATING: Specially formulated compound conforming to Navy Specification MIL-P-21035 that will produce a coating of approximately 3.0 mils thickness containing not less than 95% zinc when applied in one (1) coat according to the manufacturer's instruction. S. BITUMINOUS PAINT: Heavy bodied asphalt based paint conforming to military specification MIL-P-6883 or Fed Spec TT-V-51. T. SHOP PAINT: Shop paint shall be suitable as a primer for the finish coats as specified in Section 09800, PROTECTIVE COATINGS. Contractor shall coordinate. Generally, shop paint shall be a rust inhibiter metal primer for miscellaneous steel, TNEMEC #99 for structural components. 2.02 FABRICATIONS A. Fabricated components shall be assembled in the shop whenever possible. Steel shapes shall be cut to accurate size with sharp lines and smooth surfaces. Thickness of metal and general construction shall be adequate to withstand the stresses imposed on the component. Provide lugs and brackets necessary for connecting to other components. B. Connections shall be secure, either welded or fastened with bolts or rivets. Where the component is to be exposed to view, connections shall be by welding with the welds ground smooth. Make up threaded connections tightly so that threads will be entirely concealed by fittings. Rivets, bolts, or machine screws may be used for field connections. Visible rivets, bolts, screws, etc., may have flush or oval heads and shall be countersunk. Seal-weld visible joints and exposed joints their entire length. Other joints may be spot or skip welded unless shown otherwise, or unless they must be continuous. C. Holes for bolts and screws shall be drilled or punched. Mismatched holes shall not be allowed. Fasteners shall be concealed wherever possible. Exposed fasteners shall be of compatible materials and shall match color and finish or surrounding materials. Drill, punch, cut and tap steel as required for anchoring or accommodating the work of other trades as shown or where shown on the shop drawings. D. Structural fabrications shall be made of standard rolled shapes, plates, bars, or strips. E. Fabricated components noted to be galvanized shall be hot-dipped processed after fabrication. Galvanized shall conform to the requirements of ASTM A123 and A653 as applicable. In addition, components that are fabricated of ferrous metal and exposed on or outside of the exterior surfaces of the building above or below grade shall be hot- dipped galvanized after fabrication.
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