VA 12 31 00-2011 MANUFACTURED METAL CASEWORK.pdf

1、04-11 12 31 00 - 1 SECTION 12 31 00 MANUFACTURED METAL CASEWORK SPEC WRITER NOTES: 1. Delete between /_/ if not applicable to project. 2. Delete other item or paragraph not applicable in the section and renumber the paragraphs. 3. Verify details are shown on drawings. PART 1 - GENERAL 1.1 DESCRIPTIO

2、N A. This section specifies metal casework and related accessories, including base cabinets, wall cabinets, and full height cabinets. B. Items specified in this section: 1. Laboratory and Hospital Casework: Prefixed by “VL“ AND “M“, including metal casework of the following types: a. Wardrobe Cabine

3、t, Metal, 5A (SD123100-02). b. Wall Cabinet, Metal, 5B (SD123100-01). 1.2 RELATED WORK A. Color of casework finish: Section 09 06 00, SCHEDULE FOR FINISHES. B. Electrical Components: Division 26, ELECTRICAL. 1.3 QUALITY ASSURANCE A. Approval by Contracting Officer of proposed manufacturer, or suppli

4、ers, will be based upon submission by Contractor certification that, manufacturer regularly and presently manufactures casework specified as one of their principal products. B. Installer has technical qualifications, experience, trained personnel, and facilities to install specified items. C. Furnis

5、h supervision of installation at construction site by a qualified technician regularly employed by casework installer. 1.4 SUBMITTALS A. Submit in accordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES. B. Certificates: 1. Manufacturers Certificate of qualifications specified and

6、 finish on casework. 2. Contractors Certificate of installers qualifications specified. 3. Safety glass meets requirements of ANSI Standard Z97.1. C. Manufacturers Literature and Data: 1. Brochures showing name and address of manufacturer, and catalog or model number of each item incorporated into t

7、he work. 2. Manufacturers illustration and detailed description. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-04-11 12 31 00 - 2 3. List of deviations from contract specifications. 4. Locks, each kind D. Shop Drawings (1/2 Full Scale): 1. Showing

8、details of casework construction, including kinds of materials and finish, hardware, accessories and relation to finish of adjacent construction, including specially fabricated items or components. 2. Fastenings and method of installation. 3. Location of service connections and access. E. Samples: 1

9、. Metal plate, 150 mm (six inch) square, showing chemical resistant finish, in each color. 2. One complete casework assembly, including cabinet(s) with drawers and cupboard. 3. One glazed sliding door with track and pertinent hardware. A complete cabinet may be submitted to fulfill this requirement.

10、 4. Cabinets for subsequent installation may be submitted for above requirements. 1.5 APPLICABLE PUBLICATIONS A. Publications listed below form a part of this specification to extent referenced. Publications are referenced in the text by basic designation only. SPEC WRITER NOTE: Update applicable pu

11、blications to current issue at time of project specification preparation. B. American Society for Testing and Materials (ASTM): A36/A36M-08 Carbon Structural Steel A167-99(R 2009) Stainless and Heat-Resisting Chromium Steel Plate Sheet and Strip A283/A283M-03(R 2007) Low and Intermediate Tensile Str

12、ength Carbon Steel Plates A568/A568M-09 Steel, Sheet, Carbon and High-Strength, Low-Alloy Hot-Rolled and Cold-Rolled, General Requirements A794/A794M-09 Standard Specification for Commercial Steel (CS), Sheet, Carbon (0.16% Maximum to 0.25% Maximum) Cold Rolled B456-03(R2009) . Electrodeposited Coat

13、ings of Copper Plus Nickel Plus Chromium and Nickel Plus Chromium C1036-06 . Flat Glass C. American National Standard Institute: Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-04-11 12 31 00 - 3 Z97.1-09 . Safety Glazing Material used In Buildings D

14、. Builders Hardware Manufacturers Association (BHMA): A156.1-06 Butts and Hinges A156.9-10 Cabinet Hardware A156.5-10 Auxiliary Locks and Associated Products A156.11-10 . Cabinet Locks A156.16-02 . Auxiliary Hardware E. American Welding Society (AWS): D1.1-10 Structural Welding Code Steel D1.3-08 St

15、ructural Welding Code Sheet Steel F. National Association of Architectural Metal Manufacturers (NAAMM): AMP 500-505-06 Series Metal Finishes Manual G. U.S. Department of Commerce, Product Standard (PS): PS 1-95 Construction and Industrial Plywood H. Federal Specifications (Fed. Spec.): FF-N-836D Nut

16、, Square, Hexagon Cap, Slotted, Castle Knurled, Welding and Single Ball Seat A-A-55615 Shield, Expansion; Nail Expansion (Wood Screw and Lag Bolt Self-Threading Anchors) SPEC WRITER NOTES: 1. Update materials requirements to agree with applicable requirements (types, grades, classes,) specified in r

17、eferenced Applicable Publications. 2. Coordinate and edit to certain only that which applies to project in parts 1 and 2. PART 2 - PRODUCTS 2.1 MATERIALS A. Sheet Steel: 1. ASTM A794, cold rolled, Class 1 finish, stretcher leveled. 2. Other types of cold rolled steel meeting requirements of ASTM A56

18、8 may be used for concealed parts. B. Structural Steel: ASTM A283 or ASTM A36. C. Stainless Steel: ASTM A167, Type 302B. D. Glass: 1. ASTM C1036 Type I, Class 1, Quality q3, 2. For Doors: 6 mm (1/4 inch) thick; except where laminated glass is shown. 3. For shelves: Either 6 mm (1/4 inch) or 9 mm (3/

19、8 inch) thick. E. Laminated Glass: Fabricate of two sheets of 3 mm (1/8 inch) thick clear glass, laminated together with a 1.5 mm (0.060 inch) thick vinyl interlayer, to a total overall thickness of 8 mm (5/16 inch). Provided by IHSNot for ResaleNo reproduction or networking permitted without licens

20、e from IHS-,-,-04-11 12 31 00 - 4 F. Glazing Cushions: 1. Channel shaped, of rubber, vinyl or polyethylene plastic, with vertical flanges not less than 2 mm (3/32 inch) thick and horizontal web 3 mm (1/8 inch) thick. 2. Flanges may have bulbous terminals above the glazing heads or terminate flush wi

21、th top of beads. G. Plywood: 1. Prod. Std. PS 1, seven ply, interior. 2. Where both sides are exposed, use Grade AA. 3. Grade AB for other uses. H. Fasteners: 1. Exposed to view, chrome plated steel or stainless steel, or finished to match adjacent surface. 2. Use round head or countersunk fasteners

22、 where exposed in cabinets. 3. Expansion Bolts: Fed Spec. A-A-55615. Do not use lead or plastic shields. 4. Nuts: Fed Spec FF-N-836. Type III, Style 15 where exposed. 5. Sex Bolts: Capable of supporting twice the load. 2.2 MANUFACTURED PRODUCTS A. When two or more units are required, use products of

23、 one manufacturer. B. Manufacturer of equipment assemblies, which include components made by other, shall assume complete responsibility for the final assembled unit. C. Constituent parts which are alike, use products of a single manufacturer. 2.3 CASEWORK FABRICATION A. General: 1. Welding: Comply

24、with AWS Standards. 2. Reinforce with angles, channels, and gussets to support intended loads, notch tightly, fit and weld joints. 3. Constructed of sheet steel, except where reinforcing required. B. Minimum Steel Thickness: 0.89 mm (0.035 inch) (20 gage) Drawer fronts, backs, bodies, closure plates

25、 or scribe and filler strips less than 75 mm (three inches) wide, sloping top, shelf reinforcement channel and shelves. Toe space or casework soffits and ceilings under sloping tops. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-04-11 12 31 00 - 5

26、1.20 mm (0.047 inch) (18 gage) Base pedestals, casework top sides, back, and bottom panels, closure scribe and filler strips 75 mm (three inches) or more. Reinforcement for drawers with locks. Tables legs, spreaders and stretchers, when fabricated of cold rolled tubing. Metal for desks; except legs

27、and aprons. Door exterior and interior panels, flush or glazed. Cross rails of base units. Front bottom rails, back bottom rails; rails may be 1.49 mm (0.059 inch) (16 gage) thick. Uprights or posts. Top corner gussets. 1.49 mm (0.059 inch) (16 gage) Aprons, apron division, reinforcing gussets, tabl

28、e legs, desk legs and aprons, spreaders and stretchers when formed without welding. Toe base gussets, drawer slides, and other metal work. Front top rails and back rails except top back rails may be 1.2 mm (0.047 inch) (18 gage) thick. 1.88 mm (0.074 inch) (14 gage) Drawer runners door tracks. 2.64

29、mm (0.104 inch) (12 gage) Base unit bottom corner gussets and leg sockets. 3 mm (0.12 inch) (11 gage) Reinforcement for hinge reinforcement inside doors and cabinets. C. Casework Construction: 1. Welded assembly. 2. Fabricate with enclosed uprights or posts full height or width at front, include sid

30、es, backs, bottoms, soffits, ceilings under sloping tops, headers and rail, assembled to form an integral unit. 3. Form sides to make rabbeted stile 19 to 28 mm (3/4 to 1-1/8 inch) wide, closed by channel containing shelf adjustment slots. 4. Make bottom of walls units flush, double panel constructi

31、on. 5. Make top and cross rails of “U“ shaped channel. 6. Provide enclosed backs and bottoms in cabinets, including drawer units. 7. Provide finish panel on exposed cabinet backs. 8. Do not use screws and bolts in construction or assembly of casework, except to secure hardware, applied door stops, a

32、ccessories, removable panels and where casework is required to fastened end to end or back to back. 9. Fabricate casework, except benches, and desks with finished end panels. 10. Close flush exposed soffits of wall hung shelving, knee spaces in counters, and toe spaces at bases. Provided by IHSNot f

33、or ResaleNo reproduction or networking permitted without license from IHS-,-,-04-11 12 31 00 - 6 11. In base units with sinks provide one piece, lowered backs. 12. In base units with doors provide removable backs. 13. Provide built-in raceways or tubular or channel shaped members of casework for ins

34、tallation of wiring and electric work. Mount junction boxes on rear of cabinets, Electric work is specified in electrical sections of specifications. 14. Provide reinforcing for hardware. 15. Size Dimensions: a. Used dimensions shown or specified within tolerances specified. b. Tolerance: 1) Depth:

35、325 mm (13 inches) in lieu of 300 mm (12 inches), 450 mm (18 inches) in lieu of 400 mm (16 inches), except wall hung units above counter. 525 mm (21 inches) to 600 mm (24 inches) in lieu of 550 mm (22 inches). 2) Width: Minus 25 mm (one inch). 3) Height: 25 mm (one inch) plus or minus for wall hung

36、cabinets and counter mounted cabinets, excluding sloping tops. 25 mm (one inch) plus for floor standing cabinets, excluding base and sloping tops. Full height cabinets shown back to back same height. 4) Manufacturers tolerance for the same length, depth or height: Not to exceed 1.58 mm (0.0625 inche

37、s). D. Base Pedestals: 1. Provide adjustable leveling bolts accessible through stainless steel plugs, or notch in the base concealed when resilient base is applied. 2. Except where flush metal base is shown, provide toe space at front recessed 75 mm (3 inches). E. Doors: 1. Hollow metal type, flush

38、and glazed doors not less than 16 mm (5/8 inch) thick. 2. Fabricate flush metal doors of two panels formed into pans with corners welded and ground smooth. Provide flush doors with a sound deadening core. 3. Fabricate glazed metal doors with reinforced frame and construct either from one piece of st

39、eel, or have separate stiles and rails mitered and welded at corners, and welds ground smooth. a. Secure removable glazing members with screws to back of doors. b. Install glass in rubber or plastic glazing channels. 4. Provide sheet steel hinge reinforcement inside doors. 5. Sliding doors: Provide

40、stops to prevent bypass. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-04-11 12 31 00 - 7 6. Doors removable without use of tools except where equipped with locks. F. Drawers: 1. Drawer fronts flush hollow metal type not less than 16 mm (5/8 inch)

41、thick with sound deadening core. Fabricate of two panels formed into pans. Weld and grind smooth corners of drawer fronts. 2. Form bodies from one piece of steel, weld to drawer front. 3. Provide reinforcement for locks and provide rubber bumpers at both sides of drawer head to cushion closing. 4. E

42、quip with roller suspension guides. G. Sloping Tops: 1. Provide sloping tops for casework where shown. 2. Where ceilings interfere with installation of sloping tops. Provide filler plates as specified. 3. Omit sloping tops or filler plates whenever ceiling material is turned down and furred-in at fa

43、ce of casework. 4. Provide exposed ends of sloping tops with flush closures. 5. Fasten sloping tops with sheet metal screws inserted from cabinet interior; space fastener as recommended by manufacturer. H. Shelves: 1. Capable of supporting an evenly distributed minimum load of 122 kg/m2 (twenty-five

44、 pounds per square foot) without visible distortion. 2. Flange shelves down 19 mm (3/4 inch) on edges, with front and bearing edges flanged back 13 mm (1/2 inch). 3. For shelves over 1050 mm (42 inches) in length and over 300 mm (12 inches) in depth install 38 mm by 13 mm by 0.9 mm (1-1/2 x 1/2 x 0.

45、0359 inch) thick sheet steel hat channel reinforcement welded to underside midway between front and back and extending full length of shelf. 4. Weld shelves to metal back and ends unless shown adjustable. 5. Provide means of positive locking shelf in position, and to permit adjustment without use of

46、 tools. 6. On pharmacy on sloping shelf provide 13 mm (1/2 inch) wide clear acrylic plastic raised edge, 3 mm (1/8 inch) thick, secured to front edge of shelf. I. Undercounter Table and Bench Frames: 1. Using welded construction. 2. Open frame type with aprons and legs when required. 3. Aprons: a. C

47、hannels shaped welded at corners, with leg sockets and reinforcing triangular corner gussets welded in corners. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-04-11 12 31 00 - 8 b. Pierce sockets to receive leg bolts and notch gussets to receive leg

48、s. c. Upper flange perforated or slotted to receive screws at 200 mm (8 inch) centers, and back channels when installed against wall. Size slots for 6 mm (1/4 inch) anchor bolts. d. Pierce aprons to receive drawer formation, rail at top of drawer opening. Install channel shaped apron division welded

49、 at ends, 762 mm 30 inches apart to front and back aprons, or at each side of drawer. e. Fabricate metal components from sheet steel. 1) Use 1.5 mm (0.0598 inch) thick sheet for gussets and channel aprons. 2) Use 1.2 mm (0.0478 inch) thick sheet for other items. f. At knee space, provide exposed metal sides and metal closure plate for soffit. Where shown at knee space, provide expos