HomeMy WebLinkAboutSecurity Fencing - Chain Link Fences and GatesEXP NO. COL-00255676-A1 CHAIN LINK FENCES AND GATES
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SECTION 323113 - 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. Privacy slats.
B. Related Requirements:
1. Section 033000 "Cast-in-Place Concrete".
2. Section 323100 “TYM-2000 Heavy Duty Cantilever Sliding Gate System”.
1.3 PREINSTALLATION MEETINGS
A. Preinstallation 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. Accessories: Privacy slats.
d. Gates and hardware.
e. Gate operators, including operating instructions and motor
characteristics.
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.
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3. Gate Operator: Show locations and details for installing operator
components, switches, and controls. Indicate motor size, electrical
characteristics, drive arrangement, mounting, and grounding provisions.
4. Wiring Diagrams: For power, signal, and control wiring.
C. Delegated-Design Submittal: For structural performance of chain-link fence and
gate frameworks, including analysis data signed and sealed by the qualified
professional engineer responsible for their preparation.
1.5 INFORMATIONAL SUBMITTALS
A. Product Certificates: For each type of chain-link fence.
B. Product Test Reports: For framework strength according to ASTM F1043, for tests
performed by manufacturer and witnessed by a qualified testing agency.
C. Field quality-control reports.
D. Sample Warranty: For special warranty.
1.6 CLOSEOUT SUBMITTALS
A. Operation and Maintenance Data: For gate operators to include in emergency,
operation, and maintenance manuals.
1.7 QUALITY ASSURANCE
A. Perform work in accordance with CLFMI PM.
B. Installer Qualifications: Company specializing in performing the Work of this
Section with minimum 5 years documented experience.
1.8 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.
1.9 WARRANTY
A. Special Warranty: Manufacturer and Installer agree 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.
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b. Deterioration of metals, metal finishes, and other materials beyond
normal weathering.
c. Faulty operation of gate operators and controls.
2. Warranty Period: Five years from date of Substantial Completion.
PART 2 - PRODUCTS
2.1 PERFORMANCE REQUIREMENTS
A. Delegated Design: Engage a qualified professional engineer, as defined in
Section 014000 "Quality Requirements," to design chain-link fence and gate
frameworks.
B. 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: Per local regulations.
a. Minimum Post Size: Determine according to ASTM F1043 for post
spacing not to exceed 10 feet (3 m) for Material Group IA,
ASTM F1043, Schedule 40 steel pipe or Group IC, electric-resistance-
welded round steel pipe.
b. Minimum Post Size and Maximum Spacing: Determine according to
CLFMI WLG 2445, based on mesh size and pattern specified.
C. Lightning Protection System: Maximum resistance-to-ground value of 25 ohms at
each grounding location along fence under normal dry conditions.
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:
1. Fabric Height: As indicated on Drawings.
2. Steel Wire for Fabric: Wire diameter of 0.192 inch (4.88 mm).
a. Mesh Size: 2 inches (50 mm).
b. Zinc-Coated Fabric: ASTM A392, Type II, Class 2, 2.0 oz./sq. ft. (610
g/sq. m) with zinc coating applied before weaving.
c. Coat selvage ends of metallic-coated fabric before the weaving process
with manufacturer's standard clear protective coating.
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2.3 FENCE FRAMEWORK
A. Posts and Rails: ASTM F1043 for framework, including rails, braces, and line;
terminal; and corner posts. Provide members with minimum dimensions and wall
thickness according to ASTM F1043 or ASTM F1083 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: 4.0 inches (102 mm) in diameter.
b. End, Corner, and Pull Posts: 4.0 inches (102 mm) in diameter.
3. Horizontal Framework Members: Intermediate, top, and bottom rails
according to ASTM F1043.
a. Top Rail: 1.66 inches (42 mm) in diameter.
4. Brace Rails: ASTM F1043.
5. Metallic Coating for Steel Framework:
a. Type A: Not less than minimum 2.0-oz./sq. ft. (0.61-kg/sq. m) average
zinc coating according to ASTM A123/A123M or 4.0-oz./sq. ft. (1.22-
kg/sq. m) zinc coating according to ASTM A653/A653M.
b. Type B: Zinc with organic overcoat, consisting of a minimum of 0.9
oz./sq. ft. (0.27 kg/sq. m) of zinc after welding, a chromate conversion
coating, and a clear, verifiable polymer film.
c. External, Type B: Zinc with organic overcoat, consisting of a minimum
of 0.9 oz./sq. ft. (0.27 kg/sq. m) of zinc after welding, a chromate
conversion coating, and a clear, verifiable polymer film. Internal,
Type D, consisting of 81 percent, not less than 0.3-mil- (0.0076-mm-)
thick, zinc-pigmented coating.
d. Type C: Zn-5-Al-MM alloy, consisting of not less than 1.8-oz./sq. ft.
(0.55-kg/sq. m) coating.
e. Coatings: Any coating above.
6. Polymer coating over metallic coating.
a. Color: Match chain-link fabric, according to ASTM F934.
2.4 TENSION WIRE
A. Metallic-Coated Steel Wire: 0.177-inch- (4.5-mm-) diameter, marcelled tension
wire according to ASTM A817 or ASTM A824, with the following metallic
coating:
1. Type I: Aluminum coated (aluminized).
2. Type II: Zinc coated (galvanized) by hot-dip process, with the following
minimum coating weight:
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a. Class 3: Not less than 0.8 oz./sq. ft. (244 g/sq. m) of uncoated wire
surface.
b. Class 4: Not less than 1.2 oz./sq. ft. (366 g/sq. m) of uncoated wire
surface.
c. Class 5: Not less than 2 oz./sq. ft. (610 g/sq. m) of uncoated wire
surface.
d. Matching chain-link fabric coating weight.
3. Type III: Zn-5-Al-MM alloy with the following minimum coating weight:
a. Class 60: Not less than 0.6 oz./sq. ft. (183 g/sq. m) of uncoated wire
surface.
b. Class 100: Not less than 1 oz./sq. ft. (305 g/sq. m) of uncoated wire
surface.
c. Matching chain-link fabric coating weight.
B. Polymer-Coated Steel Wire: 0.177-inch- (4.5-mm-) diameter, tension wire
according to ASTM F1664, [Class 1] [Class 2a] [Class 2b] over [aluminum] [zinc]
[Zn-5-Al-MM-alloy]-coated steel wire.
1. Color: Match chain-link fabric, according to ASTM F934.
C. Aluminum Wire: 0.192-inch- (4.88-mm-) diameter tension wire, mill finished,
according to ASTM B211 (ASTM B211M), Alloy 6061-T94 with 50,000-psi (344-
MPa) minimum tensile strength.
2.5 FITTINGS
A. Provide fittings according to ASTM F626.
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
(152 mm) long.
2. Rail Clamps: Line and corner boulevard clamps for connecting intermediate
and bottom rails to posts.
E. Tension and Brace Bands: Pressed steel .
F. Tension Bars: Steel, length not less than 2 inches (50 mm) 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.
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G. Truss Rod Assemblies: Steel, hot-dip galvanized after threading rod and turnbuckle
or other means of adjustment.
H. Tie Wires, Clips, and Fasteners: According to ASTM F626.
1. Standard Round Wire Ties: For attaching chain-link fabric to posts, rails, and
frames, according to the following:
a. Hot-Dip Galvanized Steel: 0.106-inch- (2.69-mm-) diameter
wire; galvanized coating thickness matching coating thickness of chain-
link fence fabric.
I. Finish:
1. Metallic Coating for Pressed Steel or Cast Iron: Not less than 1.2 oz./sq. ft.
(366 g/sq. m) of zinc.
a. Polymer coating over metallic coating.
2. Aluminum: Mill finish.
2.6 GROUT AND ANCHORING CEMENT
A. Nonshrink, Nonmetallic Grout: Factory-packaged, nonstaining, noncorrosive,
nongaseous grout complying with ASTM C1107/C1107M. Provide grout,
recommended in writing by manufacturer, for exterior applications.
B. Anchoring Cement: Factory-packaged, nonshrink, nonstaining, hydraulic-
controlled expansion cement formulation for mixing with water at Project site to
create pourable anchoring, patching, and grouting compound. Provide formulation
that is resistant to erosion from water exposure without needing protection by a
sealer or waterproof coating, and that is 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.
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3.2 PREPARATION
A. Stake locations of fence lines, gates, and terminal posts. Do not exceed intervals of
500 feet (152 m) or line of sight between stakes. Indicate locations of utilities, lawn
sprinkler system, underground structures, benchmarks, and property monuments.
3.3 CHAIN-LINK FENCE INSTALLATION
A. Install chain-link fencing according to ASTM F567 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. Concealed Concrete: Place top of concrete 2 inches (50 mm) below
grade to allow covering with surface material.
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 nonshrink,
nonmetallic grout or anchoring cement, mixed and placed according to
anchoring material manufacturer's written instructions. Finish
anchorage joint to slope away from post to drain water.
c. Posts Set into Holes in Concrete: Form or core drill holes not less than
5 inches (127 mm) deep and 3/4 inch (20 mm) larger than OD of post.
Clean holes of loose material, insert posts, and fill annular space
between post and concrete with nonshrink, nonmetallic grout or
anchoring cement, 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 F567 and terminal pull posts at changes in horizontal or vertical alignment
of as indicated on Drawings. For runs exceeding 500 feet (152 m), space pull posts
an equal distance between corner or end posts.
E. Line Posts: Space line posts uniformly at 10 feet (3 m) o.c.
F. Post Bracing and Intermediate Rails: Install according to ASTM F567, 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.
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1. Locate horizontal braces at midheight of fabric 72 inches (1830 mm) or
higher, on fences with top rail, and at two-third fabric height on fences
without top rail. Install so posts are plumb when diagonal rod is under proper
tension.
G. Top Rail: Install according to ASTM F567, 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.
H. Intermediate and Bottom Rails: Secure to posts with fittings.
I. Chain-Link Fabric: Apply fabric to faceof enclosing framework. Leave 1-inch (25-
mm) 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.
J. 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 (380 mm) o.c.
K. 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 F626.
Bend ends of wire to minimize hazard to individuals and clothing.
1. Maximum Spacing: Tie fabric to line posts at 12 inches (300 mm) o.c. and to
braces at 24 inches (610 mm) o.c.
L. 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.
3.4 FIELD QUALITY CONTROL
A. Testing Agency: Engage a qualified testing agency to perform tests.
B. Grounding Tests: Comply with requirements in Section 264113 "Lightning
Protection for Structures."
C. Prepare test reports.
3.5 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 323113