UPDATED 323140 High Security Fences and Gates.docx
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- 36C25924R0056
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This document outlines requirements for a federal contract to replace security fencing and gates at the Rocky Mountain Regional VA Medical Center. The contractor will replace 11 damaged perimeter fence panels, associated posts, and replace one sliding entry gate. The contractor must submit qualifications and material certifications for approval. The work must be completed within 120 calendar days, with the gate replacement completed within 12 consecutive hours on a weekend to minimize traffic impacts. The contract will be firm-fixed price awarded by the Department of Veterans Affairs Veterans Health Administration VISN 19. The contractor must provide safety and environmental plans, supervised staff, and coordinate work to avoid interference with medical center operations. All work must comply with OSHA, EPA, and VA regulations.
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Text version
08-01-16
SECTION 32 31 40
HIGH SECURITY FENCES AND GATES
GENERAL
SUMMARY
Section Includes:
High security fences, gates and accessories. NOTE: This spec section has been updated and applies for new construction. Spec section 32 31 19, Decorative Metal Fencing, was in use at the time of construction of the fence and the existing fence was built to that specification. If there is any conflict between this spec section and section 32 31 19, COR shall make judgment as to which governs.
RELATED REQUIREMENTS
Section 32 31 19, Decorative Metal Fencing.
APPLICABLE PUBLICATIONS
Comply with references to extent specified in this section.
ASTM International (ASTM):
A653/A653M15e1 - Steel Sheet, ZincCoated (Galvanized) or Zinc AlloyCoated (Galvannealed) by HotDip Process.
A924/A924M14e1 - General Requirements for Steel Sheet, Metallic Coated by the Hotdip Process.
D279493(2010) - Test Method for Resistance of Organic Coatings to the Effects of Rapid Deformation (Impact).
F240816 - Ornamental Fences Employing Galvanized Steel Tubular Pickets.
Master Painters Institute (MPI):
No. 18 - Primer, Zinc Rich, Organic.
SUBMITTALS
Submittal Procedures: Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES.
Submittal Drawings:
Show size, configuration, and fabrication and installation details.
Manufacturer's Literature and Data:
Description of each product.
Certificates: Certify products comply with specifications.
Fence alignment.
Zinccoating complies with specifications.
Structural characteristics comply with indicated and criteria on Drawings.
Connections comply with requirements indicated on Drawings.
Qualifications: Substantiate qualifications comply with specifications.
Manufacturer with project experience list.
Installer with project experience list.
Welders and welding procedures.
QUALITY ASSURANCE
Manufacturer Qualifications:
Regularly manufactures specified products.
Manufactured specified products with satisfactory service on five similar installations for minimum five years.
Project Experience List: Provide contact names and addresses for completed projects.
Installer Qualifications: Manufacturer authorized installer.
Regularly installs specified products.
Installed specified products with satisfactory service on five similar installations for minimum five years.
Project Experience List: Provide contact names and addresses for completed projects.
Welders and Welding Procedures Qualifications: AWS D1.1/D1.1M or AWS D1.3/D1.3M.
DELIVERY
Deliver products in manufacturer's original sealed packaging.
Mark packaging, legibly. Indicate manufacturer's name or brand, type, color, production run number, and manufacture date.
Before installation, return or dispose of products within distorted, damaged, or opened packaging.
STORAGE AND HANDLING
Store products indoor in dry, weathertight conditioned facility.
Protect products from damage during handling and construction operations.
FIELD CONDITIONS
Field Measurements: Verify field conditions affecting high security fence fabrication and installation. Show field measurements on Submittal Drawings.
Coordinate field measurement and fabrication schedule to avoid delay.
WARRANTY
Construction Warranty: FAR clause 52.24621, "Warranty of Construction."
PRODUCTS
SYSTEM PERFORMANCE
System components includes pickets, pales, mesh, fabric, rails, posts, gates and hardware required with following performance requirements:
Steel Yield Strength: ASTM A924, minimum 344 MPa (50,000 psi).
Impact Resistance: ASTM D2794, over 6.8 Nm (60 inlb.) when using 0.625 ball forward impact.
Gates: Design to meet same forced entry and anticlimb characteristics as other portions of fence.
MATERIALS
ZincCoated Steel: ASTM A653, G90 coating designation and ASTM A924.
Tubular Steel: ASTM F2408.
Concrete: As specified in Section 03 30 00, CastinPlace Concrete.
PRODUCTS - GENERAL
Provide fence components from one manufacturer.
Steel Recycled Content: 30 percent total recycled content, minimum.
HIGH SECURITY FENCE
Pickets: Hotdip galvanized steel, nominal 68.75 mm (2 3/4 inches) by 18.75 mm (3/4 inch) by 1.98 mm (0.078 inch) thick.
Rails: Hotdip galvanized steel, nominal 50 mm (2 inch) square.
Gate Posts: Tubular steel, nominal 100 mm (4 inch) square.
Provide motorized sliding gates for vehicle access.
Provide hinged pedestrian gates to match existing.
FABRICATION
Fabricate fence and gate to profile and dimensions indicated on Drawings.
Fabricate components with joints tightly fitted and secured.
FINISHES
Steel Paint Finish:
PowderCoat Finish: Manufacturer's standard twocoat finish system as follows:
One coat primer.
One coat thermosetting topcoat.
Dryfilm Thickness: 0.05 mm (2 mils) minimum.
Color: As selected by Architect.
Finish exposed surfaces after fabrication.
ACCESSORIES
Accessories: Manufacturer's required accessories for complete installation.
Barrier Coating: ASTM D1187/D1187M.
Welding Materials: AWS D1.1/D1.1M, type to suit application.
Fasteners: Fasteners as recommended by manufacturer.
Gate Hardware: Fence manufacturers standard hardware for motorized sliding gates.
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 panels and gates to permit new installation.
Retain existing undamaged fence panels and gates for reuse.
Dispose of other removed damaged materials.
INSTALLATION - GENERAL
Install products according to manufacturer's instructions and approved submittal drawings.
When manufacturer's instructions deviate from specifications, submit proposed resolution for Contracting Officer's Representative consideration.
Excavate for concreteembedded items.
Set posts in concrete foundation with a minimum depth of 914 mm (36 inches).
Attached fence panel to the line and end posts with manufacturer's standard fasteners.
Install gate to gate posts spaced as indicated on Drawings. Install required hardware and adjust for smooth operation.
Touch up damaged factory finishes.
Repair galvanized surfaces with galvanized repair paint.
Repair painted surfaces with touch up primer.
CLEANING
Clean exposed high security fence and gate surfaces. Remove contaminants and stains.
PROTECTION
Protect high security fences and gates from // traffic and // construction operations.
Remove protective materials immediately before acceptance.
Repair damage.
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