Attach 1.Spec 6.05 50 00.09R0007.pdf

Solicitation No. FA5270-09-R-0007

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LXEZ 09-2663

DIVISION 5 - METALS

SECTION 05 50 00

MISCELLANEOUS AND FABRICATIONS

PART 1 - GENERAL

1.1 REFERENCES:

The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by the basic designation only.

ALUMINUM ASSOCIATION, INCORPORATED (AA)

AA DAF 45-03 Designation System for Aluminum Finishes

AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)

ASTM A 36/A 36M-05 Carbon Structural Steel

ASTM B 209M-07 Aluminum and Aluminum-Alloy Sheet and Plate (Metric)

ASTM B 209-07 Aluminum and Aluminum-Alloy Sheet and Plate

ASTM B 221M-07 Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Shapes, and Tubes (Metric)

ASTM B 221-06 Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Shapes, and Tubes

JAPANESE INDUSTRIAL STANDARDS (JIS)

JIS H 4100-06 Aluminum Alloy Shape

JIS H 8602-06 Combined Coating of Anodic – Oxide and Organic Coating on

Aluminum

JIS G 3446-04 Stainless Steel Pipe for Machine and Structures

1.2 PERFORMANCE REQUIREMENTS:

a. Structural: Shapes and thickness of supporting accessory members shall be sufficient to withstand a design wind load of not less than 95 pounds per square foot of supported area with a deflection of not more than 1/175 times the length of the member and a safety factor of not less than 1.65.

1.3 SUBMITTALS:

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Submit the following in accordance with Section 01 11 00 entitled "General Requirements." See AF Form 66 on submittal schedule.

a. Shop Drawings :

1. Show elevations of each gate type,

2. Size of gate and supporting accessories,

3. Metal gages,

4. Details of gate and frame construction,

5. Methods of anchorage,

6. Provisions for and location of hardware and

7. Details of installation.

b. Manufacturer’s Instructions:

1. Submit detail specifications and instructions for installation, adjustments, cleaning, and maintenance.

c. Certificate of Compliance: Manufacturer’s certificates attesting that the aluminum gate and accessories meet the specified requirements:

1. Aluminum fence shall conform to JIS H 4100 and JIS H 8602

2. Stainless Steel shall conform to JIS G 3446

1.4 DELIVERY, STORAGE, AND HANDLING:

a. Inspect materials delivered to the site for damage. Unload and store with minimum handling Provide storage space in dry location with adequate ventilation, free from dust or water, and easily accessible for inspection and handling. Stack materials on non-absorptive strips or wood platforms. Protect finished surfaces during shipping and handling using manufacturer's standard method, PART 2 - PRODUCTS

2.1 ALUMINUM GATE AND ACCESSORIES:

Provide gate complete with accessories. All gates and component parts including fastenings shall be designed to withstand basic wind speed of 180 mph. A removable horizontal member for securing during typhoon shall be provided with gate.

2.2 MATERIALS:

Style of gate shall be shown on Plate No. 19 of the attached sketches.

a. Anchors: Stainless steel or steel with hot-dipped galvanized finish.

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b. Fasteners: Hard aluminum or stainless steel

c. Gate Lock: Stainless Steel

d. Bituminous Paint: Mil Spec MIL-C- 18480

2.3 FABRICATION:

a. Aluminum Gate: Aluminum tubes approximately as indicated. Minimum wall thickness for frames shall be 2 mm . Use countersunk stainless steel Phillips head screws for exposed fastenings. Mill joints in frame members to a hairline fit, reinforce, and secure mechanically.

Shapes shown are representations of design, functions, and required profile. Dimensions shown are minimum. Shape of equivalent design, dimensions, profile, and functions may be used subject to Contracting Officer approval.

b. Welding and Fastening: Where possible, locate welds on unexposed surfaces. Dress welds on exposed surfaces smoothly. Select welding rods, filler wire, and flux to produce a uniform texture and color in finished work. Remove flux and spatter from surfaces immediately after welding. Exposed screws or bolts will be permitted only in inconspicuous locations, and shall have countersunk heads. Weld concealed reinforcements for hardware in place

c. Provisions for Hardware: Provide hardware reinforcements of stainless steel or steel with hot-dipped galvanized finish, and secure with stainless steel screws. Provide reinforcement gate as required to receive locks and other hardware.

d. Finishes: Exposed aluminum surfaces shall be factory finished, anodized, with color, unless otherwise indicated.

e. Anodic Coating: Clean exposed aluminum surfaces and provide a clear anodized finish conforming to AA DAF 45. Finish shall be natural anodized, designation AA-M12-C22- A41, Architectural Class I (0.7 mil or thicker).

PART 3 - EXECUTION

3.1 INSTALLATION:

a. Method of Installation: Hang/plumb gates, square, level, align frames with proper clearances and accessories or hardware. After erection, adjust hardware to operate properly. Also install gates in accordance with manufacturer's printed instructions.

3.2 PROTECTION FROM DISSIMILAR MATERIALS

a. Dissimilar Metals: Where aluminum surfaces come in contact with metals other than stainless steel, zinc, or small areas of white bronze, protect from direct contact by one or a combination of the following methods:

1. Paint the dissimilar metal with one coat of heavy-bodied bituminous paint.

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2. Apply a good quality elastomeric sealant between the aluminum and the dissimilar metal.

3. Paint the dissimilar metal with one coat of primer and one coat of aluminum paint.

4. Masonry and Concrete: Provide aluminum surfaces in contact with mortar, concrete, or other masonry materials with one coat of heavy-bodied bituminous paint.

3.2 FINISH HARDWARE:

3.2.1 Installation of Hardware: Install hardware in accordance with manufacturer’s instructions .

Except as indicated or specified otherwise, use fasteners furnished with hardware to fasten in place. Use machine screws set in expansion shields for fastening hardware to solid concrete and masonry surfaces.

3.2.2 Acceptance: After installation, protect hardware from paint, stains , blemishes and other damages until acceptance of work. Hinges, locks, holders closers and other items shall be adjusted to operate properly. Also demonstrate that tagged keys and respective locks operates properly. After the hardware is inspected/tested , deliver tagged keys to the Customer or Using Activity. Correct, repair, and finish as directed errors in cutting and fitting damages to adjoining work .

3.2.3 Hardware Schedule:

HW-1 3 pairs Manufacturer’s standard gate hinge, 5/32” thick, stainless steel

1 ea. Gate Lock, Stainless Steel

2 ea . Cane bolt, Stainless Steel

1 ea. Padlock, heavy duty, brass or Stainless Steel

3.3 CLEANING: Upon completion of installation, thoroughly clean gate in accordance with manufacturer’s procedure. Do not use abrasive, caustic, or acid cleaning agents.

3.4 PROTECTION: Protect gate from damage. Prior to completion and acceptance, restore/replace any damaged adjacent/adjoining works during the execution of the project at no cost to the government..

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