SECTION 05720

ORNAMENTAL HANDRAILS AND RAILINGS

PART 1: GENERAL

Related Documents
Drawings and general provisions of the contract, and including general and supplementary conditions and division 1 specification sections, apply to this section.

1.1 SECTION INCLUDES

  1. Exterior guardrails at balconies.
  2. Exterior guardrails at exterior stairs.
  3. Exterior guardrails at handicap ramps.
  4. Interior guardrails at exit stairways.
  5. Interior guardrails at handicap ramps.
  6. Other__________.

1.2  RELATED SECTIONS

  1. Section 03300 - Cast-In-Place Concrete: Requirements for placement of anchors or sleeves in concrete.
  2. Section 05520 - Handrails and Railings: Metal handrails other than those specified in this section.
  3. Section 05522 - Glass Railing: Tempered Glass Railing Systems.
  4. Section 06114 - Wood Blocking and Curbing: Blocking and handrail support.
  5. Section 06200 - Finish Carpentry: Wood Handrails.
  6. Section 08800 - Glazing: Glass Baluster Infill.
  7. Other__________.

1.3  REFERENCES

  1. ANSI/CABO A117.1 - American National Standard for Buildings and Facilities; Providing Accessible and Usable Buildings and Facilities; Council of American Building Officials.
  2. ASTM B 221 - Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Shapes, and Tubes.
  3. ASTM E 935 - Standard Test Methods for Performance of Permanent Metal Railing Systems and Rails for Buildings.
  4. ASTM E 985 - Specification for Permanent Metal Railing and Rails for Buildings.
  5. ANSI Z 97.1 - Glazing Materials used in Building Safety Performance Specifications and method of test.
  6. Welding to CSA Standard W47.2M for fusion welding of aluminum.
  7. AAMA - 2604-98 Voluntary Specifications, Performance Requirements and test procedures for high performance organic coatings on aluminum extrusions and panels.
  8. ASTM E 894 - Anchorage of Permanent Metal Railing Systems and Rails for buildings.
  9. International Code Council ICC-ES AC 273, " Acceptance Criteria for Handrails and Guards "
  10. Section 1607.7 of the 2003 International Building Code (IBC )
  11. 2003 International Residential Code (IRC )

1.4  DESIGN REQUIRMENTS

  1. Design, fabricate and install handrail and railing systems in accordance with ASTM E 985 for structural performance based on testing performed in accordance with ASTM E 894 and E 935.
  2. Railing assembly and attachments shall be capable of resisting the following loads:
  1. Top Rail:
    1. Concentrated load of 200 lbs applied at any point and in any direction.
    2. Uniform load of 50 lbs per linear ft. applied horizontally and concurrently with uniform load of 100 lbs per linear ft. applied vertically downward.
    3. Concentrated load need not be assumed to act concurrently with uniform loads.
  2. Handrails not serving as top rails:
    1. Concentrated load of 200 lbs per linear feet applied in any direction.
    2. Uniform load of 50 lbs per linear ft. applied in any direction.
    3. Concentrated and uniform loads need not assumed to act concurrently.
  3. Infill area of guardrail system:
    1. Capable of withstanding a horizontal load of 50 lbs applied to one sq. ft. at any point in the system.
    2. Load is not to be assumed to act concurrently with loads on top rails of railing systems in determining stress on guards.
    3. The required safety factor for glass used in handrails and guards is 4.
    4. The required safety factor for assemblies is 2.5.

1.5  SUBMITTALS

  1. Product Data: For manufacturers product lines of handrails and railings assembled from standard components.
    1. Include Product Data for grout, anchoring cement, and paint products.
  2. Shop Drawings: Show fabrication and installation of handrails and railings. Include plans, elevations, sections, details, and attachments to other work.
  3. Samples for Initial Selection: Manufacturer's color charts showing the full range of colors available for products with factory-applied powder coated finishes.
  4. Samples for Initial Selection: Short sections of railing or flat sheet metal samples showing available mechanical finishes.
  5. Samples for Verification: For each type of exposed finish required, prepare on components, as indicated below, the same thickness and metal indicated for the Work. If finishes involve normal color and texture variations, include sample sets showing the full range of variations expected.
    1. 6 inch (150 mm) long sections of each different linear railing member, including handrails, and top rails.
    2. Fittings and brackets.
    3. Assembled Samples of railings, made from full-sized components, including top rail, post, handrail, and infill. Show method of finishing member at intersections. Samples need not be full height.
  6. Qualification Data: For firms and persons specified in "Quality Assurance" Article to demonstrate their capabilities and experience. Include lists of completed projects with project names and addresses, names and addresses of architects and owners, and other information specified.
  7. Product Test Reports: Indicating products comply with requirements based on comprehensive testing of current products.

1.6  QUALITY ASSURANCE

  1. Source Limitations: Obtain each type of railing through one source from a single manufacturer.

1.7  STORAGE

  1. Store handrails and railings in a dry, well-ventilated, weather-tight place.

1.8  PROJECT CONDITIONS

  1. Field Measurements: Verify handrail and railing dimensions by field measurements before fabrication and indicate measurements on Shop Drawings. Coordinate fabrication schedule with construction progress to avoid delaying the Work.
    1. Established Dimension: Where field measurements cannot be made without delaying the Work, establish dimensions and proceed with fabricating handrails and railings without field measurements. Coordinate construction to ensure that actual dimensions correspond to established dimensions.

1.9  COORDINATION

  1. Coordinate installation of anchorages for handrails and railings. Furnish Setting Drawings, templates, and directions for installing anchorages, including sleeves, concrete inserts, anchor bolts, and items integral to anchors, that are to be embedded in concrete or masonry. Deliver such items to Project Site in time for installation.

1.10  WARRANTY

  1. Provide manufacture's standard limited warranty for structural defects and for power coating.

PART 2 - PRODUCTS

2.1  MANUFACTURERS

  1. Available Manufacturers: Subject to compliance with requirements, manufacturers offering products that may be incorporated into the work include the following:
    1. Aluminum Handrails and Railings:
      1. Railcraft Aluminum Railing Systems, as manufactured by Railcraft International Inc, 13272 Comber Way, Surrey, BC, V3W 5V9, Canada, Ph: 1-800-211-4884, Fax: (604) 543-4447, info@railcraft.com
      2. Request for substitutions will be considered in accordance with provisions of section 01600.

2.2  MATERIALS

  1. Aluminum Welded Picket guardrail system: Components fabricated of extruded aluminum in accordance with ASTM B 221. (ASTM B 221M).
    1. Top Rail Style: Alloy 6063-T5.
      1. Round welded picket top rail.
      2. Square welded picket top rail.
    2. Picket (balustrade) welded top and bottom rail, Alloy 6063-T5. Style:
      1. Square 5/8 inch.
      2. Other________.
    3. Bottom Rail: Alloy 6063-T5.
      1. U-channel 0.547 inches high by 1.318 inches wide.
      2. Other________.
    4. Posts: Alloy 6005A-T61:
      1. 1-5/8 inch plain posts with welded base plates.
      2. 1-5/8 inch posts with welded bottom rail sleeves.
      3. 1-5/8 inch posts with shop welded center posts and mechanically fastened 1-5/8 inch end/corner/splice posts with welded bottom sleeves.
    5. Mounting System: Anchoring system capable of withstanding structural design load stated.
      1. Posts surface mounted to substrate with base plates.
      2. Posts fascia mounted to outer deck surface.
      3. Posts core mounted to substrate using non-shrink grout.
    6. Posts Spans:
      1. 96 inch maximum post spacing.
    7. Guardrail termination at walls and columns:
      1. Connect to building walls or support columns at top and bottom locations (and application mid rail locations) using wall mount connectors.
      2. Posts to be used at railing termination points such as building walls or support columns in addition to upper wall mounts connecting to the building and/or columns to reduce guardrail deflection.
    8. Anchors and Fasteners:
      1. Rail frame assembled using color matching stainless steel fasteners.
      2. Rail frame assembled using stainless steel fastners.
      3. Post base plate anchorage to be stainless steel as recommended by the manufacturer.
    9. Anchors and Fasteners.
      1. Rail frame, color matching stainless steel fasteners.
      2. Post base plate anchorage to be stainless steel as recommended by the manufacturer.
  1. Aluminum Tempered Glass Guardrail System: Components fabricated of extruded aluminum, alloy 6063-T5, in accordance with ASTM B 221. (ASTM B 221M).
    1. Top Rail Style: Alloy 6063-T5.
      1. Round top rail.
      2. Square top rail.
    2. Clear Infill Barrier
      1. Tempered Glass: Clear ¼ inch (6 mm) thick conforming to ANSI Z 97.1.
      2. Tempered Glass: Tinted ____color, ¼ inch (6 mm) thick conforming to ANSI Z 97.1.
    3. Bottom Rail: Alloy 6063-T5.
      1. Deep-H Channel 2.113 inches high by 0.969 inches wide
    4. Posts: Alloy 6005A.T61.
      1. 1-5/8 inch plain posts with welded base plates.
      2. 1-5/8 inch posts with welded bottom rail sleeves.
      3. 1-5/8 inch posts with shop welded center posts and mechanically fastened 1-5/8 inch end/corner posts with welded bottom sleeves.
    5. Mounting System: Anchoring system capable of withstanding structural design load stated.
      1. a. Posts surface mounted to substrate with bottom base plates.
      2. b. Posts fascia mounted to outer deck surface.
      3. c. Posts core mounted to substrate using non-shrink grout.
    6. Post Spans:
      1. 66 inch maximum post spacing.
    7. Guardrail termination at walls and columns:
      1. Connect to building walls or support columns at top and bottom locations (and application mid rail locations) using wall mount connectors.
      2. Posts to be used at railing termination points such as building walls or support columns in addition to upper wall mounts connecting to the building and/or columns to reduce guardrail deflection.
    8. Anchors and Fasteners:
      1. a. Rail frame assembled using color matching stainless steel fasteners.
      2. b. Rail frame assembled using stainless steel fasteners.
      3. c. Post base plate anchorage to be stainless steel as recommended by the manufacturer.

2.3  FASTENERS

  1. Fasteners for Anchoring Handrails and Railings to Other Construction: Select fasteners of type, grade, and class required to produce connections suitable for anchoring handrails and railings to other types of construction indicated and capable of withstanding design loads.
  2. Fasteners for Interconnecting Handrail and Railing Components: Use fasteners fabricated from same basic metal as fastened metal, unless otherwise indicated. Do not use metals that are corrosive or incompatible with materials joined.
    1. Provide concealed fasteners for interconnecting railing components and for attaching them to other Work, unless exposed fasteners are unavoidable or are standard fastening method for handrail and railing indicated.
    2. Provide Phillips flat-head machine screws for exposed fasteners, unless otherwise indicated.
  3. Cast-in-Place and Post installed Anchors: Anchors of type indicated below, fabricated from corrosion-resistant materials with capability to sustain, without failure, a load equal to six times the load imposed when installed in concrete, as determined by testing per ASTM E 488 conducted by a qualified independent testing agency.
    1. Cast-in-place anchors.
    2. Chemical anchors.
    3. Expansion anchors.

2.4  Grout and Anchoring Cement

  1. Non-shrink, Non-metallic Grout: Premixed, factory-packaged, non-staining, non-corrosive, nongaseous grout complying with ASTM C 1107. Provide grout specifically recommended by manufacturer for interior and exterior applications.
  2. Interior Anchoring Cement: Factory-packaged, non-shrink, non-staining, hydraulic-controlled expansion cement formulation for mixing with water at Project site to create pourable anchoring, patching, and grouting compound. Use for interior applications only.

2.5  FABRICATION

  1. Assemble handrails and railings in shop to greatest extend possible to minimize field splicing and assembly. Disassemble units only as necessary for shipping and handling limitations. Clearly mark units for reassembly and coordinated installation. Use connections that maintain structural value of joined pieces.
  2. Form changes in direction of railing members as follows:
    1. As detailed
  3. Mechanical Connections: Fabricate handrails and railings by connecting members with railing manufacturer's standard concealed mechanical fasteners and fittings, unless otherwise indicated. Fabricate members and fittings to produce flush, smooth, rigid, hairline joints.
  4. Brackets, Flanges, Fittings, and Anchors: Provide manufacturer's standard wall brackets, flanges, miscellaneous fittings, and anchors to connect handrail and railing member to other construction.
  5. Provide inserts and other anchorage devices to connect handrails and railings to concrete or masonry. Fabricate anchorage devices capable of withstanding loads imposed by handrails and railings. Coordinate anchorage devices and supporting structure.
  6. Shear and punch metals cleanly and accurately. Remove burrs from exposed cut edges.
  7. Cut, reinforce, drill, and tap components, as indicated, to receive finish hardware, screws, and similar items.
  8. Close exposed ends of railing members with prefabricated end fittings.
  9. Provide wall returns at ends of wall-mounted handrails, unless otherwise indicated. Close ends of returns, unless clearance between end of railing and wall ¼ inch (6mm) or less.

2.6  GLAZING PANEL FABRICATION

  1. Glass Panels: Cut tempered glass to final size and shape before heat treatment; provide for proper edge clearance and bite on glass. Provide thickness indicated, but not less than that required to support the structural loads.

2.7  FACTORY FINISHES

  1. The System complies with the finish designations pre-fixed by the Aluminum Association (AA).
  2. High-Performance Organic Coating Finish: AAMA 2604-98 Standard with non-chrome pretreatment. Prepare, pre-treat, and apply coating to exposed metal surfaces to comply with manufacturer's written instructions.
    1. Tiger Drylac, Series 68 Super-Durable Polyester Power Coating, 3 mil. average film thickness complies with AAMA 2604-98.
      1. Color and Gloss: As selected by Architect from manufacturer's full range of choices for color and gloss, including custom colors.

PART 3 - EXECUTION

3.1  EXAMINATION

  1. Examine substrates, where reinforced to receive anchors, to verify that locations of concealed reinforcements have been clearly marked for Installer. Locate reinforcements and mark locations if not already done.

3.2  INSTALLATION - GENERAL

  1. Fit exposed connections together to form tight, hairline joints.
  2. Cutting, Fitting, and Placement: Perform cutting, drilling, and fitting required for installing handrails and railings. Set handrails and railings accurately in location, alignment, and elevation, measured from established lines and levels and free from rack.
    1. Do not weld, cut or abrade surfaces of railing components that have been coated or finished after fabrication and that are intended for field connection by mechanical or other means without further cutting or fitting.
    2. Align rails so variations from level for horizontal members and from parallel with rake of steps and ramps for sloping members do not exceed 1/4 inch in feel (6 mm in 3 m).
  3. Corrosion Protection: Prevent galvanic action by insulating aluminum from direct contact with incompatible materials.
  4. Adjust handrails and railings before anchoring to ensure alignment at abutting joints. Space posts at interval indicated, but not less than that required by structural loads.
  5. Fastening to In-Place Construction: Use anchorage devices and fasteners where necessary for securing handrails and railings and for properly transferring loads to in-place construction.

3.3  RAILING CONNECTIONS

  1. Non-welded Connections: Use mechanical joints for permanently connecting railing components. Use wood blocks and padding to prevent damage to railing members and fittings.

3.4  INSTALLING GLASS PANELS

  1. Glass, Handrails, and Railings: Install assembly to comply with railing manufacturer's written instructions. Attach base channel to building structure, then insert and connect factory-fabricated and assembled glass panels.

3.5  CLEANING

  1. Touch-up Painting: Immediately after erection, touch-up damaged finish with matching paint supplied by manufacturer. Clean areas of installation and handrail components, using material and methods recommended by the manufacturer. Remove packaging and debris caused by installation from the project site.

3.6  PROTECTION

  1. Protect handrail and railing finishes from damage during construction period with temporary protective coverings approved by railing manufacturer. Remove protective coverings at the time of Substantial Completion.

END OF SECTION 05720

ADDITIONAL GENERAL PRODUCT SPECIFICATIONS

 


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