323114 chain link fences gates ext.pdf

F5W61608 USPFO Warehouse Ohio Army National Guard Rev. 0 Defense Supply Center Columbus, Ohio 30 January 2009 Bid Final

CHAIN LINK FENCES AND GATES (EXTERIOR) 323114 - 1

SECTION 323114 - CHAIN LINK FENCES AND GATES (EXTERIOR)

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section.

1.2 SECTION INCLUDES

A. Fence framework, fabric, and accessories.

B. Excavation for post bases; concrete foundation for posts and center drop for gates.

C. Manual gates and related hardware.

D. Industrial horizontal slide gates and related hardware.

1.3 RELATED SECTIONS

A. Section 03300 – Cast-In-Place Concrete: Concrete anchorage for posts.

1.4 REFERENCES

A. ASTM A 153/A 153M - Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware; 2000.

B. ASTM F 567 - Standard Practice for Installation of Chain-Link Fence; 2000.

C. ASTM F 668 - Standard Specification for Poly (Vinyl Chloride) (PVC) and Other Organic Polymer-Coated Steel Chain-Link Fence Fabric; 1999a.

D. ASTM F 934 - Standard Specification for Standard Colors for Polymer-Coated Chain Link Fence Materials; 1996.

E. ASTM F 1083 - Standard Specification for Pipe, Steel, Hot-Dipped Zinc-Coated (Galvanized) Welded, for Fence Structures; 1997.

F. ASTM F1184 – Industrial and Commercial Horizontal Slide Gates.

G. ASTM F1911 – Standard Practice for Installation of Barbed Tape.

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H. ASTM A 491-6 & 9 – Standard Specification for aluminum coated wire.

1.5 SUBMITTALS

A. Product Data: Provide data on fabric, posts, accessories, fittings and hardware.

B. Shop Drawings: Indicate plan layout, spacing of components, post foundation dimensions, hardware anchorage, and schedule of components.

C. Samples: Submit two samples of fence fabric, 6 inch by 6 inch in size illustrating construction and colored finish.

1.6 QUALITY ASSURANCE

A. Manufacturer Qualifications: Company specializing in manufacturing products specified in this section, with not less than three years of documented experience.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Available Manufacturers: Subject to compliance with requirements, manufacturers offering products that may be incorporated into the work include, but are not limited to, the following.

B. Chain Link Fences and Gates:

1. Master-Halco, Inc. (Anchor Fence): www.anchorfence.com.

2. Merchants Metals: www.merchantsmetals.com.

2.2 MATERIALS

A. Posts, Rails, and Frames: ASTM F 1083 Schedule 40 hot-dipped galvanized steel pipe, welded construction, minimum yield strength of 25 ksi. Hot-dipped galvanized with minimum average 1.8 oz/sq. ft. of coated surface area.

B. Wire Fabric: ASTM F 668 polymer-coated steel chain link fabric. PVC or polyolefin elastomer coating, 7 mil thickness, thermally fused to zinc-coated steel core wire per ASTM F 668 Class 2b. Core wire tensile strength 75,000 psi.

C. Base Metal: The base metal shall be of such quality and purity that, when drawn to the size of wire required and coated with PVC, the finished fencing shall be of uniform quality and have properties and characteristics as prescribed herein.

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D. PVC-Coated Wire: Wire used for the manufacture of fabric shall meet the requirements of this specification and shall be capable of being woven into fabric without the PVC coating cracking or peeling. PVC shall be plasticized and thoroughly compounded so that there is full dispersement of pigments, stabilizer and other components.

E. Aluminum Coated Wire: Wire used for the manufacture of fabric shall meet the requirements of this specification and shall be capable of being woven into fabric without damage to aluminum coating.

F. Concrete: Type specified in Section 033000.

2.3 COMPONENTS

A. Line Posts: 2.38-inch diameter.

B. Fabric: 2-inch diamond mesh interwoven wire, 9 gage thick, top selvage knuckle end closed, bottom selvage knuckle end closed.

C. Tension Wire: 7 gage thick steel, single strand.

D. Tension Band: 3/16"x3/4" inch thick steel.

E. Tension Strap: 3/16"x3/4" inch thick steel.

F. Tie Wire: Steel wire.

G. Gate or Direction Change Post: 3.5-inch diameter.

2.4 ACCESSORIES

A. Caps: Cast steel galvanized; sized to post diameter, set screw retainer.

B. Fittings: Sleeves, bands, clips, rail ends, tension bars, fasteners and fittings; steel.

C. Hardware for Single Swinging Gates: 180 degree hinges, 2 for gates up to 60 inches high, 3 for taller gates; fork latch with gravity drop and padlock hasp; keeper to hold gate in fully open position.

D. Hardware for Double Swinging Gates: 180 degree hinges, 2 for gates up to 60 inches high, 3 for taller gates; drop bolt on inactive leaf engaging socket stop set in concrete, active leaf latched to inactive leaf preventing raising of drop bolt, padlock hasp to hold both gates locked; keepers to hold gate in fully open position.

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E. Privacy Slats: Slats shall be black vinyl or high-density virgin polyethylene with ultraviolet inhibitors with integral color pigments. The slats shall be sized properly for the fence fabric and shall have a 25-year warranty against color fading and breakage.

F. Barbed Wire: Shall be 2 strand, 12-1/2 gauge wire, zinc coated, Class 3 in accordance with ASTM A121. Barbed wire shall be four-point barbed type steel wire.

Barbed wire support arms shall be a single 45° type and of the design required for the post used.

2.5 VEHICULAR GATES

A. Gate fabric shall be as specified for exterior chain link fence fabric. Vehicular gate louvers shall have tubular members and diagonal truss rods as necessary to provide rigid construction, free piping sag or twist. Latches, hinges, stops, keepers, rollers, and other hardware items shall be furnished as required for the operation of the gate.

2.6 GATE OPERATOR

A. Electric gate operators for sliding gates shall be as follows:

1. Electric gate operators shall have an enclosed drive assembly that excludes all exposed rail drive assemblies and exposed drive chains. Motor and motor box shall be 1/2 hp, 208 volt, 3 phase by a nationally recognized manufacturer.

Motors shall be protected against overload, either by thermal or a current sensing overload device. Crank handle located in the motor box shall provide a single step engagement procedure for manual operation. Fold out handle located at ground level and crank gate opened or closed. Control circuit shall be 110 VAC and operating controller shall be fabricated using UL listed parts.

Control wiring to be supplied by 24 VAC and operating controller shall be fabricated using UL listed parts. Motor box shall be constructed of 10 gauge-galvanized steel, located at ground level for easy maintenance and furnished with detention hinges, tamper-resistant security screws and a mechanical paracentric key lock. Track shall be a heavy-duty overhead beam consisting of structural steel channels joined together as shown on the drawings. Locking column is constructed of a 4 inch x 13 lb/ft “H” beam and removable steel cover. Cover is secured in place with security screws. Gate panel shall lock in three locations within the locking column. Provide all necessary components for interface with electronic security system.

B. The sliding gate operator system shall be furnished by one of the following:

1. Tymetal Corp. Model PLUSS-10

2. Southern Steel Model 9100

3. Other approved products fully conforming to the requirements specified.

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2.7 FINISHES

A. Components (Other than Fabric): PVC-Coated finish in accordance with ASTM F 1043, apply supplemental color coating of 10 to 15 mils of thermally fused PVC, black to match fabric.

B. Vinyl Components: Black, per ASTM F 934.

C. Hardware: Hot-dip galvanized to weight required by ASTM A 153/A 153M. Finish to match framing.

D. Accessories: Same finish as framing.

E. Privacy Fence: Shall have all hardware material, fasteners types and rods finished in black to match fabric color.

F. Perimeter Fence: Shall be aluminum coated (aluminized) with all accessories.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Install framework, fabric, accessories and gates in accordance with ASTM F 567.

B. Locate terminal post at each fence termination and change in horizontal or vertical direction of 30 degrees or more.

C. Space line posts at not more than 10 feet on center.

D. Place fabric on public side of posts and rails.

E. Set intermediate, terminal, and gate posts plumb.

F. Footing Depths and Diameters: As indicated on the drawings.

G. Brace each gate and corner post to adjacent line post with horizontal center brace rail and diagonal truss rods. Install brace rail one bay from end and gate posts.

H. Install top tension wire stretched taut between terminal posts.

I. Install center brace rail on corner gate leaves.

J. Do not stretch fabric until concrete foundation has cured 28 days.

K. Stretch fabric between terminal posts or at intervals of 100 feet maximum, whichever is less.

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L. Position bottom of fabric at finished grade.

M. Install fabric so that fabric remains in tension after pulling force is released. Fasten fabric to top rail, line posts, braces, and bottom tension wire with tie wire at maximum 15 inches on centers. Twist all tie wires a minimum of two times.

N. Attach fabric to end, corner, and gate posts with tension bars and tension bar clips spaced maximum of 15 inch on center.

O. Install bottom tension wire stretched taut between terminal posts.

P. Do not attach the hinged side of gate to building wall; provide gate posts.

Q. Remove sharp edges on all hardware.

R. Install gate with fabric to match fence. Install hardware.

S. Provide concrete center drop to footing depth and drop rod retainers at center of double gate openings.

T. The space between any post and adjacent structure shall not exceed 4 inches.

3.2 ERECTION TOLERANCES

A. Maximum Variation From Plumb: 1/4 inch.

B. Maximum Offset From True Position: 1 inch.

END OF SECTION 323114