HomeMy WebLinkAbout32 31 13 Chain Link Fences and GatesTHE KENT
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AND GATES
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SECTION 32 31 13 - CHAIN LINK FENCES AND GATES
PART 1 - GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 01 Specification Sections, apply to this Section.
1.2 SUMMARY
A. Section Includes:
1. Chain-link fences.
2. Swing gates.
B. Related Requirements:
1. Section 03 30 00 "Cast-in-Place Concrete" for cast-in-place concrete.
1.3 PRE-INSTALLATION MEETINGS
A. Pre-installation Conference: Conduct conference at Project site.
1.4 ACTION SUBMITTALS
A. Product Data: For each type of product.
1. Include construction details, material descriptions, dimensions of individual components
and profiles, and finishes for the following:
a. Fence and gate posts, rails, and fittings.
b. Chain-link fabric, reinforcements, and attachments.
c. Gates and hardware.
B. Shop Drawings: For each type of fence and gate assembly.
1. Include plans, elevations, sections, details, and attachments to other work.
2. Include accessories, hardware, gate operation, and operational clearances.
C. Samples for Initial Selection: For each type of factory-applied finish.
D. Samples for Verification: For each type of component with factory-applied finish, prepared on
Samples of size indicated below:
1. Polymer-Coated Components: In 6-inch lengths for components and on full-sized units
for accessories.
1.5 INFORMATIONAL SUBMITTALS
A. Product Certificates: For each type of chain-link fence, and gate.
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B. Product Test Reports: For framework strength according to ASTM F 1043, for tests performed
by manufacturer and witnessed by a qualified testing agency or a qualified testing agency.
C. Field quality-control reports.
D. Sample Warranty: For special warranty.
1.6 QUALITY ASSURANCE
A. Provide chain link fences and gates as complete units controlled by a single source including
necessary erection accessories, fittings, and fastenings.
1.7 FIELD CONDITIONS
A. Field Measurements: Verify layout information for chain-link fences and gates shown on
Drawings in relation to property survey and existing structures. Verify dimensions by field
measurements.
1.8 WARRANTY
A. Special Warranty: Manufacturer agrees to repair or replace components of chain-link fences
and gates that fail in materials or workmanship within specified warranty period.
1. Failures include, but are not limited to, the following:
a. Failure to comply with performance requirements.
b. Deterioration of metals, metal finishes, and other materials beyond normal
weathering.
2. Warranty Period: Five years from date of Substantial Completion.
PART 2 - PRODUCTS
2.1 PERFORMANCE REQUIREMENTS
A. Structural Performance: Chain-link fence and gate frameworks shall withstand the design wind
loads and stresses for fence height(s) and under exposure conditions indicated according to
ASCE/SEI 7.
1. Design Wind Load: As indicated on Drawings.
a. Minimum Post Size: Determine according to ASTM F 1043 for post spacing not to
exceed 10 feet for Material Group IA, ASTM F 1043, Schedule 40 steel pipe.
b. Minimum Post Size and Maximum Spacing: Determine according to
CLFMI WLG 2445, based on mesh size and pattern specified.
2.2 CHAIN-LINK FENCE FABRIC
A. General: Provide fabric in one-piece heights measured between top and bottom of outer edge of
selvage knuckle or twist according to "CLFMI Product Manual" and requirements indicated
below:
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1. Fabric Height: As indicated on Drawings.
2. Steel Wire for Fabric: Wire diameter of 0.192 inch.
a. Mesh Size: 2-1/8 inches.
b. Polymer-Coated Fabric: ASTM F 668, Class 1 over Zn-5-Al-MM-alloy-coated steel
wire.
1) Color: As selected by Architect from manufacturer's full range, according to
ASTM F 934.
c. Coat selvage ends of metallic-coated fabric before the weaving process with
manufacturer's standard clear protective coating.
3. Selvage: Knuckled at both selvages.
2.3 FENCE FRAMEWORK
A. Posts and Rails: ASTM F 1043 for framework, including rails, braces, and line; terminal; and
corner posts. Provide members with minimum dimensions and wall thickness according to
ASTM F 1043 based on the following:
1. Fence Height: As indicated on Drawings.
2. Heavy-Industrial-Strength Material: Group IA, round steel pipe, Schedule 40.
a. Line Post: 1.9 inches in diameter.
b. End, Corner, and Pull Posts: 2.375 inches in diameter.
3. Horizontal Framework Members: Intermediate top and bottom rails according to
ASTM F 1043.
a. Top Rail: 1.66 inches in diameter.
4. Brace Rails: ASTM F 1043.
5. Metallic Coating for Steel Framework:
a. Type C: Zn-5-Al-MM alloy, consisting of not less than 1. 8-oz./sq. ft. coating.
6. Polymer coating over metallic coating.
a. Color: Match chain-link fabric, according to ASTM F 934.
2.4 SWING GATES
A. General: ASTM F 900 for gate posts and single swing gate types.
1. Gate Leaf Width: As indicated.
2. Framework Member Sizes and Strength: Based on gate fabric height of 72 inches or less.
B. Pipe and Tubing:
1. Zinc-Coated Steel: ASTM F 1043 and ASTM F 1083; protective coating and finish to
match fence framework.
2. Gate Posts: Round tubular steel.
3. Gate Frames and Bracing: Round tubular steel.
C. Frame Corner Construction: Welded or assembled with corner fittings.
D. Hardware:
1. Hinges: 180-degree inward swing.
2. Latch: Permitting operation from both sides of gate with provision for padlocking
accessible from both sides of gate.
3. Lock: Manufacturer's standard internal device.
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2.5 FITTINGS
A. Provide fittings according to ASTM F 626.
B. Post Caps: Provide for each post.
1. Provide line post caps with loop to receive tension wire or top rail.
C. Rail and Brace Ends: For each gate, corner, pull, and end post.
D. Rail Fittings: Provide the following:
1. Top Rail Sleeves: Pressed-steel or round-steel tubing not less than 6 inches long.
2. Rail Clamps: Line and corner boulevard clamps for connecting rails to posts.
E. Tension and Brace Bands: Pressed steel.
F. Tension Bars: Steel, length not less than 2 inches shorter than full height of chain-link fabric.
Provide one bar for each gate and end post, and two for each corner and pull post, unless fabric
is integrally woven into post.
G. Finish:
1. Metallic Coating for Pressed Steel or Cast Iron: Not less than 1.2 oz./sq. ft. of zinc.
a. Polymer coating over metallic coating.
2.6 GROUT AND ANCHORING CEMENT
A. Non-shrink, Non-metallic Grout: Factory-packaged, non-staining, non-corrosive, non-gaseous
grout complying with ASTM C 110. Provide grout, recommended in writing by manufacturer, for
exterior applications.
PART 3 - EXECUTION
3.1 EXAMINATION
A. Examine areas and conditions, with Installer present, for compliance with requirements for site
clearing, earthwork, pavement work, and other conditions affecting performance of the Work.
1. Do not begin installation before final grading is completed unless otherwise permitted by
Architect.
B. Proceed with installation only after unsatisfactory conditions have been corrected.
3.2 PREPARATION
A. Stake locations of fence lines, gates, and terminal posts. Do not exceed intervals of 500 feet or
line of sight between stakes. Indicate locations of utilities, lawn sprinkler system, underground
structures, benchmarks, and property monuments.
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3.3 CHAIN-LINK FENCE INSTALLATION
A. Install chain-link fencing according to ASTM F 567 and more stringent requirements specified.
1. Install fencing on established boundary lines inside property line.
B. Post Excavation: Drill or hand-excavate holes for posts to diameters and spacings indicated, in
firm, undisturbed soil.
C. Post Setting: Set posts in concrete at indicated spacing into firm, undisturbed soil.
1. Verify that posts are set plumb, aligned, and at correct height and spacing, and hold in
position during setting with concrete or mechanical devices.
2. Concrete Fill: Place concrete around posts to dimensions indicated and vibrate or tamp
for consolidation. Protect aboveground portion of posts from concrete splatter.
a. Exposed Concrete: Extend 2 inches above grade; shape and smooth to shed
water.
b. Posts Set into Sleeves in Concrete: Use steel pipe sleeves preset and anchored
into concrete for installing posts. After posts are inserted into sleeves, fill annular
space between post and sleeve with non-shrink, non-metallic grout, mixed and
placed according to anchoring material manufacturer's written instructions. Finish
anchorage joint to slope away from post to drain water.
D. Terminal Posts: Install terminal end, corner, and gate posts according to ASTM F 567 and
terminal pull posts at changes in horizontal or vertical alignment of as indicated on Drawings.
For runs exceeding 500 feet, space pull posts an equal distance between corner or end posts.
E. Line Posts: Space line posts uniformly at 96 inches o.c.
F. Post Bracing and Intermediate Rails: Install according to ASTM F 567, maintaining plumb
position and alignment of fence posts. Diagonally brace terminal posts to adjacent line posts
with truss rods and turnbuckles. Install braces at end and gate posts and at both sides of corner
and pull posts.
G. Tension Wire: Install according to ASTM F 567, maintaining plumb position and alignment of
fence posts. Pull wire taut, without sags. Fasten fabric to tension wire with 0.120-inch- diameter
hog rings of same material and finish as fabric wire, spaced a maximum of 24 inches o.c. Install
tension wire in locations indicated before stretching fabric. Provide horizontal tension wire at the
following locations:
1. As indicated on Drawings.
H. Top Rail: Install according to ASTM F 567, maintaining plumb position and alignment of fence
posts. Run rail continuously through line post caps, bending to radius for curved runs and
terminating into rail end attached to posts or post caps fabricated to receive rail at terminal
posts. Provide expansion couplings as recommended in writing by fencing manufacturer.
I. Intermediate and Bottom Rails: Secure to posts with fittings.
J. Chain-Link Fabric: Apply fabric to outside of enclosing framework. Leave 1-inch bottom
clearance between finish grade or surface and bottom selvage unless otherwise indicated. Pull
fabric taut and tie to posts, rails, and tension wires. Anchor to framework so fabric remains
under tension after pulling force is released.
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K. Tension or Stretcher Bars: Thread through fabric and secure to end, corner, pull, and gate
posts, with tension bands spaced not more than 15 inches o.c.
L. Tie Wires: Use wire of proper length to firmly secure fabric to line posts and rails. Attach wire at
one end to chain-link fabric, wrap wire around post a minimum of 180 degrees, and attach other
end to chain-link fabric according to ASTM F 626. Bend ends of wire to minimize hazard to
individuals and clothing.
1. Maximum Spacing: Tie fabric to line posts at 12 inches o.c. and to braces at 24 inches
o.c.
M. Fasteners: Install nuts for tension bands and carriage bolts on the side of fence opposite the
fabric side. Peen ends of bolts or score threads to prevent removal of nuts.
N. Privacy Slats: Install slats in direction indicated, securely locked in place.
1. Direction and privacy factor as indicated on Drawings.
3.4 GATE INSTALLATION
A. Install gates according to manufacturer's written instructions, level, plumb, and secure for full
opening without interference. Attach fabric as for fencing. Attach hardware using tamper-
resistant or concealed means. Install ground-set items in concrete for anchorage. Adjust
hardware for smooth operation.
3.5 ADJUSTING
A. Gates: Adjust gates to operate smoothly, easily, and quietly, free of binding, warp, excessive
deflection, distortion, nonalignment, misplacement, disruption, or malfunction, throughout entire
operational range. Confirm that latches and locks engage accurately and securely without
forcing or binding.
B. Lubricate hardware and other moving parts.
3.6 DEMONSTRATION
A. Engage a factory-authorized service representative to train Owner's maintenance personnel to
adjust, operate, and maintain chain-link fences and gates.
END OF SECTION 32 31 13