32 31 13 ChainLinkFencesGates.docx

11-01-16

SECTION 32 31 13

CHAIN LINK FENCES AND GATES

GENERAL

SUMMARY

Section Includes:

Zinccoated chain link fence, gates and accessories.

APPLICABLE PUBLICATIONS

Comply with references to extent specified in this section.

ASTM International (ASTM):

A39211a - ZincCoated Steel ChainLink Fence Fabric.

A81712 - MetalCoated Steel Wire for ChainLink Fence Fabric and Marcelled Tension Wire.

F56714a - Installation of ChainLink Fence.

F62614 - Fence Fittings.

F108316 - Pipe, Steel, HotDipped ZincCoated (Galvanized) Welded, for Fence Structures.

American Welding Society (AWS):

D1.2/D1.2M14 - Structural Welding Code - Aluminum.

SUBMITTALS

Submittal Drawings:

Show size, configuration, and fabrication and installation details.

Coordinate with wall manufacturer for appropriate wall and fence construction details to withstand applicable horizontal and vertical loadings.

Manufacturer's Literature and Data:

Description of each product.

Installation instructions.

Warranty.

Samples:

Accessories: Full sized, complete assembly.

Approved samples may be incorporated into work.

Certificates: Certify products comply with specifications.

Fence alignment.

Zinccoating.

Qualifications: Substantiate qualifications comply with specifications.

Manufacturer.

Installer.

Operation and Maintenance Data.

Care instructions for each exposed finish product.

QUALITY ASSURANCE

Manufacturer Qualifications:

Regularly manufactures specified products.

Manufactured specified products with satisfactory service on five similar installations for minimum five years.

Installer Qualifications:

Regularly installs specified products.

Installed specified products with satisfactory service on five similar installations for minimum five years.

Surveyor Qualifications:

Trained and experienced to provide services typically provided by a surveyor as defined by state law in the project location.

Licensed professional qualified to perform survey services in the project location.

Welders and Welding Procedures Qualifications: AWS D1.1/D1.1M.

DELIVERY

Deliver products in manufacturer's original sealed packaging.

Mark packaging, legibly. Indicate manufacturer's name or brand, type, production run number, and manufacture date.

Before installation, return or dispose of products within distorted, damaged, or opened packaging.

STORAGE AND HANDLING

Protect products from damage during handling and construction operations.

WARRANTY

Construction Warranty: FAR clause 52.24621, "Warranty of Construction."

Manufacturer's Warranty: Warrant against material and manufacturing defects.

Warranty Period: Five years.

PRODUCTS

PRODUCTS - GENERAL

Provide fences and gates from one manufacturer.

CHAINLINK FENCE

Materials: ASTM F1083 and ASTM A392 ferrous metals, zinccoated.

ChainLink Fabric: ASTM A392 9 gage wire woven in 50 mm (2 inch) mesh. Knuckle top and bottom selvage. Zinccoating weight 570 grams/sq. m 1.2 ounces per square foot).

Post: ASTM F1083, Grade SK40A, round, zinccoated steel. Size and type as indicated on Drawings. Provide post braces and truss rods for each gate, corner, pull or end post. Provide truss rods with turnbuckles or other equivalent provisions for adjustment.

Top Rail and Bottom Rail: ASTM F1083, Grade SK40A, round, zinccoated steel.

Top and Bottom Tension Wires: ASTM A817 and ASTM F626, zinccoated, with minimum coating same as fence fabric.

HARDWARE

General: Manufacturer's standard products, installed complete.

CONCRETE

Concrete: As specified in Section 03 30 00, CastinPlace Concrete.

ACCESSORIES

General: ASTM F626, caps, rail and brace ends, wire ties or clips, braces and tension bands, tension bars, truss rods, and miscellaneous accessories.

Primers:

Barrier Coating: ASTM D1187/D1187M.

Welding Materials: AWS D1.2/D1.2M, type to suit application.

Galvanizing Repair Paint: MPI No. 18.

TouchUp Paint: Match shop finish.

EXECUTION

PREPARATION

Examine and verify substrate suitability for product installation.

Protect existing construction and completed work from damage.

Remove existing fence and gate to permit new installation.

Dispose of removed materials.

Correct substrate deficiencies.

Fill.

Grind.

Level.

Apply barrier coating to aluminum surfaces in contact with dissimilar metals and cementitious materials to minimum 0.7 mm (30 mils) dry film thickness.

INSTALLATION - // GENERAL // CHAIN LINK FENCES AND GATES //

General: Comply with ASTM F567. Install products according to manufacturer's instructions.

When manufacturer's instructions deviate from specifications, submit proposed resolution for COR consideration.

Registered Professional Land Surveyor or Registered Civil Engineer specified in Section 01 00 00, GENERAL REQUIREMENTS, will stake out and certify fence alignment meeting requirements as indicated on Drawings.

Excavation: Excavate concreteembedded items of dimensions indicated on Drawings, except in bedrock. When bedrock is encountered before reaching required depth, continue excavation to depth indicated or 450 mm (18 inches) into bedrock, whichever is less, and provide minimum 50 mm (2 inches) larger diameters than outside diameter of post. Clear loose material from post holes. Grade area around finished concrete footings as shown and dispose of excess earth as directed by the COR.

Post Setting: Install posts plumb and in alignment. Set post in concrete footings of dimensions indicated on Drawings, except in bedrock. Compact concrete free of voids and finish in slope or dome. Install posts in bedrock with nonshrink grout minimum 25 mm (one inch) around each post, free of voids and finish in slope or dome. Cure concrete and grout minimum 72 hours.

Post Caps: Snugly fit exposed ends of post with caps. Install caps to accommodate top rail. Install post caps according to manufacturer's instructions and as indicated on Drawings.

Supporting Arms: Install supporting arms according to manufacturer's instructions and as indicated on Drawings.

Top Rails and Bottom Rails: Install rails before installing chain link fabric. Install expansion couplings (rail sleeves) spaced according to manufacturer's instructions. Install expansion couplings over expansion joints in wall when fence is on top of wall.

Top and Bottom Tension Wire: Install and pull taut tension wire before installing chainlink fabric.

Accessories: Install accessories (posts braces, tension bands, tension bars, truss rods, and miscellaneous accessories), as required and recommended by the manufacturer, for complete fence installation, with fabric taut and attached to posts, rails, and tension wire.

Touch up damaged factory finishes.

Repair galvanized surfaces with galvanized repair paint.

FABRIC

Pull fabric taut and secure with wire ties or clips to top rail, bottom rail, and tension wire close to both sides of each post and at intervals maximum 600 mm (24 inches) on centers. Secure fabric to posts using stretcher bars and ties or clips.

GATES

Install gates plumb, level, and secure for full opening without interference. Set keepers, stops and other accessories into concrete as indicated on Drawings and according to manufacturer's instructions. Adjust hardware for smooth operation and lubricate when necessary.

REPAIR OF GALVANIZED SURFACES

Use galvanized repair compound, stick form, or other method, where galvanized surfaces need field or shop repair. Repair surfaces according to manufacturer's directions.

CLEANING

Remove debris, rubbish, and excess material from site.

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CHAIN LINK FENCES AND GATES

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