Attach 1.Spec 11.32 31 13.09R0007.pdf

Solicitation No. FA5270-09-R-0007

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LXEZ 09-2663

SECTION 32 31 13

CHAIN LINK FENCE AND GATES

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.

FEDERAL SPECIFICATIONS (FS):

FS RR-F-191/ (Rev. K) Fencing, Wire and Post, Metal (Chain-Link

Fence Fabric & Accessories) (Detail Specification)

FS RR-191/2 (Rev. D) Fencing, Wire and Post, Metal (Chain-Link

Fence Gates) (Detail Specification)

W-S 610 Splice Connectors

AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)

ASTM A 121 (2007) Zinc Coated (Galvanized), Steel Barbed Wires.

ASTM A 392 (2007) Zinc Coated Steel Chain Link Fence Fabric

ASTM C 94/C 94 (2007) Ready Mixed Concrete

ASTM F 1043 (2006) Strength and Protective Coating on Metal

Industrial Chain Link Fence Framework

ASTM F 1083 (2006) Specifications for Pipe, Steel, Hot-Dipped Zinc

Coated (Galvanized) Welded For Fence Structures

ASTM F 626 (1996) Fence Fittings

ASTM F 883 (1994) Padlocks

ASTM F 900 (2003) Industrial and Commercial Swing Gates

JAPANESE ARCHITECTURAL STANDARD SPECIFICATIONS (JASS):

JASS 5-86 Reinforced Concrete Work

JAPANESE INDUSTRIAL STANDARDS (JIS):

JIS B 1180-94 Hexagon Head Bolts and Hexagon Head Screws

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JIS B 1181-93 Hexagon Nuts and Hexagon Thin Nuts

JIS F 3022-78 Ships Steel Pipe U-Bolts

JIS G 3101-95 Rolled Steel for General Structure

JIS G 3191-66 Shape, Dimensions, Weight and Tolerance for Hot

Rolled Steel Bar and Bar in Coil

JIS G 3192-94 Dimensions, Mass, and Permissible Variations of Hot

Rolled Steel Sections

JIS G 3193-90 Dimensions, Mass, and Permissible Variations of Hot

Rolled Steel Plates, Sheets and Strips

JIS G 3452-88 Carbon Steel Pipes for Ordinary Piping

JIS G 3532-93 Low Carbon Steel Wires

JIS G 3533-93 Barbed Wire

JIS G 3552-93 Chain Link Wire Netting

JIS H 8641-82 Zinc Hot Dip Galvanizing

JIS K 5627-95 Zinc Chromate Anticorrosive Paint

JIS Z 3211-91 Covered Electrodes for Mild Steel

JIS Z 3801-79 Welding Technique

1.2 SUBMITTALS:

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

1.2.1 Manufacturer’s Catalog Data:

a. Fabric

b. Posts

c. Braces

d. Framing

e. Rails

f. Tension wires

g. Other Accessories.

1.2.2 Assembly and Installation Instructions:

a. Fencing and Gate

1.3 APPROVAL OF ALUMINUM OR ZINC-COATED FENCE AND GATE MATERIALS:

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Coated fence materials shall be thoroughly inspected for cracking, peeling, and conformance with the specifications by the Contracting Officer’s Representative (COR) prior to installations. Any fence materials rejected by the COR shall be replace by the Contractor with approved materials at no cost to the Government.

1.4 DELIVERIES, STORAGE AND PROTECTION:

Deliver materials to the site in an undamaged condition. Store materials off the ground to provide production against oxidation caused by ground contact.

PART 2 – PRODUCTS

2.1 CHAIN-LINK FENCING AND ACCESSORIES:

Materials shall conform to the referenced specifications and standards, and other requirements as specified herein. Materials not specified herein or not indicated shall be standard commercial products and suitable for the intended purpose.

a. Fencing Fabric: JIS G 3552, zinc coating Class Z-G4, diameter 4 mm (No. 9 gauge), mesh size

50 mm (2 inches), knuckled at one selvage and twisted and barbed at the other. Standard commercial product heavily zinc coated or hot dip galvanized after weaving conforming to applicable requirement of JIS G 3552 Class A zinc coating, JIS H 8641 Type 2; equivalent ASTM A 392 Class 2 Zinc coated steel wire with minimum coating weight 610 grams of zinc per square meter of coated surfaces; if required Class 2b polyvinyl chloride-coated steel fabric with 92 grams of zinc coating per square meter in accordance with ASTM F 668. Polyvinyl chloride coating fabric and all other fence component shall be of manufacturer’s standard. Color of coating shall be designated COR. Height of fabric shall be in feet as indicated on the submitted Delivery Order for project execution.

b. Fencing: Shape and size of the gate frame shall be as indicated. Framing and bracing members shall be of structural steel pipe with minimum zinc coat of 0.54kg./sm (1.8 ounces/sf) specified herein. Coating on latches, stops, hinges, keepers, and accessories shall be zinc-coated steel having weight of zinc coating not less than HDZ 40B, JIS H 8641.

c. Gates: Gate size and shape as indicated in the drawings, gates shall conform to ASTM F 900.

Equivalent requirement as set forth in FS-RR-F-191/2C & FS-RR-F-191/4. Gate shall be the type and swing shown. Steel post diameter for vehicular gate must be 170 mm. Gate frames shall conform to strength and coating requirements of ASTM F 1083 for Group 1A, steel pipe, with external coating Type A nominal pipe size 65mm diameter. Gate frames shall be galvanized zinc-coated steel pipe with external coating type A, a nominal pipe size of 65mm diameter conforming to ASTM F 1043. Gate Fabric shall be specified for chain link fence. Gates more than 8 feet wide shall be shall intermediate members and diagonal truss rods or shall have tubular members as necessary to provide rigid construction, free from sag or twist. Gates less than 8 feet wide shall have truss rod or intermediate members. Intermediate braces shall be provided on all on gate frames. Gate fabric shall be attached to the gate frame by method standard with the manufacturer except that welding will not be permitted. Latches, hinges, stops, keepers, rollers and other hardware items shall be furnished as required for the operation of the gate. Latches shall be arranged for the padlocking so that padlock will be accessible for both sides of the gate. Stops shall be provided for holding the gates in the open position. For high security applications, each end members of gate frames shall be extended sufficiently above the top member to carry three strands of barbed wire in horizontal alignment with barbed wire strands on the fence.

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d. Structural Steel Bars, Plates and Shapes: JIS G 3191, JIS G 3192, and JIS G 3193, galvanized respectively. JIS G 3101, Class 2 for the material.

e. Bolts and Nuts: JIS B 1180 and JIS B 1181, galvanized, respectively.

f. Carbon Steel Pipes: JIS G 3452, SGP, sizes as indicated.

g. Tension Steel Wires: JIS G 3532, SWM-G4, annealed, 4.49 mm in diameter for tension wires or shall be Type 1 or Type II, Class 2 coating, in accordance with ASTM A 124.

h. Barbed Wire: JIS G 3533, Aiowa type, barb pitch 76 mm, diameter 2 mm, zinc coating Class 3, or shall conform to ASTM A121, zinc-coated, Class 1 13 gauge with 13-1/2 gauge 4-point barbs spaces no more than 6 inches apart.

i. Zinc Dust Anti-Corrosive Paint: JIS K 5627, Class 2.

j. Welding Rods: JIS Z 3211, Class D 4301.

k. Zinc Coating: JIS H 8641, Type 2, HDZ 55.

l. Chain-Link Fencing Accessories: FS RR-F-191/4 or shall conform to ASTM F 626. Ferrous accessories shall be zinc or aluminum coated

m. Concrete Work: All concrete work shall be in accordance with JASS 5, or ASTM C 94 and as indicated.

n. U-Bolts: JIS F 3022.

o. Braces and Rails: shall conform to ASTM F 1043 zinc-coated, Group IA, steel pipe, size NPS 1-

1/4. Group IC steel pipe, zinc-coated shall meet the strength and coating requirement of ASTM F 1043, same requirements fro poly vinyl chloride coated.

p. Welders Qualifications: Shall be qualified in accordance with JIS Z 3801.

PART 3 – EXECUTION

3.1 INSTALLATION:

Install the fence on previously prepared surfaces to line and grade as indicated. Clear fence line of trees, brush and other obstacle to install fencing. Install fence in accordance with the drawing, specification, and manufacturer’s written installation instructions, except as modified herein. When solid rock is encountered near the surface, the contractor must drill into the rock at least 305 millimeter (12 inches) for line posts and at least 457 millimeter (18 inches) for end, pull, corner, and gate posts.

a. Post Spacing: Remove loose and foreign materials from holes and the soil moistened prior to placing concrete. Provide line posts spaced equidistant apart, not to exceed 3-m (10-foot) centers maximum. Provide corner posts with bracing in both directions.

b. Post Setting: Set post plumb. Provide post anchorage as indicated in the drawings. Cure concrete and grout a minimum of 72 hours before any further work is done on the posts.

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c. Bracing: Brace corner, end, and pull posts to the nearest post with a horizontal brace used as a compression member and two truss turnbuckles used as tension members.

d. Supporting Arms (Top Guards): Supporting arms shall be of the design as required to accommodate the top rail. Install supporting arms as indicated by the manufacturer. In addition to manufacturer's standard connections, securely anchor supporting arms to posts in such manner that will prevent easy removal with hand tools. Studs driven by low-velocity powder-actuated tools may be used with steel, wrought iron, ductile iron, or malleable iron. Do not use studs driven by any powder-actuated tool with gray iron or other material that will be fractured.

e. Top Rails and Bottom Rails: Install top rails and bottom rails before installing chain-link fabric.

Pass the top rail through intermediate post caps. Provide expansion couplings spaced as indicated.

f. Bottom Tension Wires: Install bottom tension wires before installing chain-link fabric and pull the wires taut. Top and bottom tension wires shall be within 20 cm of the respective fabric line.

g. Fabric: Pull fabric taut and secure fabric to top rail and bottom rail, and top wire and bottom wire, close to both sides of each post and at intervals of not more than 60 cm on centers. Secure fabric to posts using stretcher bars and ties or clips or by integrally weaving to integral fastening loops of end, corner, pull, and gateposts for the full length of each post. Install fabric on the opposite side of posts from the area being secured. Install fabric so that bottom of fabric is at 5 cm (2 inches) above ground level. Install fence fabric to provide approximately 5 cm (2 inches) deflection at the center of fabric span between two posts, when a force of approximately 13.6 kg (30 pounds) is applied perpendicular to the fabric. The fabric should return to its original position when force is removed.

h. Barbed Wires: Install barbed wires on supporting arms (top guards) above the fence posts.

Extend each end member of gate frames sufficiently above the top member to carry three strands of barbed wire in horizontal alignment with barbed wire strands on the fence. Pull each strand taut and securely fastened to each supporting arm and extended member. The method of securing wires shall be positive and complete and in accordance with the fence manufacturer's recommendations.

3.2 GATE INSTALLATION: Install gates plumb, level, and secure, with full opening without Interference. Install ground set items as recommended by the fence manufacturer. Adjust hardware For smooth operation and lubricated where necessary.

3.3 GROUNDING:

Restore grounding damaged by this construction. Provide grounding on new installed fence and Gates.

3.4 SECURITY:

Construct new security fencing, remove existing security fencing, and perform related work to provide continuous security for the using activity. Schedule and fully coordinate the work with the Contracting Officer and respective Security Officer.

3.5 CLEANUP:

Remove waste fencing materials and other debris from the fencing site in accordance with the requirement specified in Section 02 41 00, “Demolition and Removal”. The Contractor is allowed to transport only any unsalvage metals or removed chain link fence to Kadena Recycling Center, Bldg.3140, telephone number 634-2600/0448.

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