Section 02841 - Guiderail and Bollards

Section 02841 - Guiderail and Bollards

Chrysler LLCConstruction Standards

12/17/04

SECTION 02841 - GUIDERAIL AND BOLLARDS

PART 1 - GENERAL

1.1 SUMMARY

  1. This Section includes highway guiderail and bollards.

1.2 SUBMITTALS

  1. Product data for paint products.

1.3 PROJECT CONDITIONS

  1. Field Measurements: Check actual locations of other construction to which guiderail must fit by accurate field measurements before fabrication. Show recorded measurements on final shop drawings. Coordinate fabrication schedule with construction progress to avoid delaying the Work.

PART 2 - PRODUCTS

2.1 FERROUS METALS

  1. Metal Surfaces, General: For metal fabrications exposed to view in the completed Work, provide materials selected for their surface flatness, smoothness, and freedom from surface blemishes. Do not use materials with exposed pitting, seam marks, roller marks, rolled trade names, or roughness.
  2. Steel Plates, Shapes, and Bars: ASTM A 36.
  3. Steel Pipe: ASTM A 53, schedule 80, unless otherwise indicated.
  4. Black finish, unless otherwise indicated.
  5. Welding Rods and Bare Electrodes: Select according to AWS specifications for the metal alloy to be welded.

2.2 HIGHWAY GUIDERAIL

  1. Guiderail shall be galvanized steel “W” type with galvanized steel I-beam posts and spacers conforming to AASHTO M180. Guiderail shall be fabricated of hot rolled structural steel shapes, W6x8.5, in accordance with ASTM A36 or ASTM A588. Apply zinc coating to steel of 2.0 ounces/sq.ft. thickness of double exposed surface in accordance with ASTM A525 or ASTM A123. Bolts shall be galvanized in accordance with ASTM A153.
  2. Provide curved end shoes and all bolts, nuts and other accessories.

2.3 FASTENERS

  1. General: Provide plated fasteners complying with ASTM B 633, Class Fe/Zn 25 for electrodeposited zinc coating, for exterior use or where built into exterior walls. Select fasteners for the type, grade, and class required.
  2. Bolts and Nuts: Regular hexagon-head bolts, ASTM A 325N, Type 1, with hex nuts, ASTM A 563, and, where indicated, flat washers.
  3. Plain Washers: Round, carbon steel, ANSI B18.22.1.
  4. Expansion Anchors: Anchor bolt and sleeve assembly of material indicated below with capability to sustain, without failure, a load equal to 6 times the load imposed when installed in unit masonry and equal to 4 times the load imposed when installed in concrete as determined by testing per ASTM E 488 conducted by a qualified independent testing agency.
  5. Material: Carbon steel components zinc-plated to comply with ASTM B 633, Class Fe/Zn 5.
  6. Material: Group 1 alloy 304 or 316 stainless-steel bolts and nuts complying with ASTM F 593 and ASTM F 594.

2.4 CONCRETE

  1. Materials: Portland cement complying with ASTM C 150, aggregates complying with ASTM C 33, and potable water for ready-mixed concrete complying with ASTM C 94.
  2. Concrete Mix: Normal weight 3000 PSI, 28-day strength concrete unless noted otherwise; slump of 4 inches +1 inch, air-entrainment of 6 percent +1 percent and 3/4-inch maximum size aggregate.

2.5 FABRICATION, GENERAL

  1. Form exposed work true to line and level with accurate angles and surfaces and straight sharp edges.
  2. Shear and punch metals cleanly and accurately. Remove burrs.
  3. Remove sharp or rough areas on exposed traffic surfaces.
  4. Weld corners and seams continuously to comply with the following:
  5. Use materials and methods that minimize distortion and develop strength and corrosion resistance of base metals.
  6. Obtain fusion without undercut or overlap.
  7. Remove welding flux immediately.
  8. At exposed connections, finish exposed welds and surfaces smooth and blended so that no roughness shows after finishing, and contour of welded surface matches those adjacent.
  9. Form exposed connections with hairline joints, flush and smooth, using concealed fasteners wherever possible. Use exposed fasteners of type indicated or, if not indicated, Phillips flat-head (countersunk) screws or bolts. Locate joints where least conspicuous.
  10. Provide for anchorage of type indicated; coordinate with supporting structure. Fabricate and space anchoring devices to secure metal fabrications rigidly in place and to support indicated loads.
  11. Shop Assembly: Preassemble items in shop to greatest extent possible to minimize field splicing and assembly. Disassemble units only as necessary for shipping and handling limitations. Use connections that maintain structural value of joined pieces. Clearly mark units for reassembly and coordinated installation.
  12. Fabricate joints that will be exposed to weather in a manner to exclude water, or provide weep holes where water may accumulate.

2.6 PIPE BOLLARDS

  1. Fabricate pipe bollards from Schedule 80 steel pipe.
  2. Exterior bollards shall be hot dip galvanized, except fire protection bollards.
  3. Fire Protection bollards shall be painted.
  4. Interior bollards shall be steel pipe (not galvanized) and painted.
  5. Finish:
  6. Exterior At Vehicle Doors: Hot-dip galvanized after fabrication.
  7. Interior At Vehicle Doors, And At All Fire Protection devices: Painted.

2.7 STEEL AND IRON FINISHES

  1. Galvanizing: Hot-dip galvanize items as indicated to comply with applicable standard listed below:
  2. ASTM A 123, for galvanizing steel and iron products.
  3. ASTM A 153/A 153M, for galvanizing steel and iron hardware.
  4. Painting:
  5. Preparation for Shop Priming: Prepare uncoated ferrous metal surfaces to comply with minimum requirements indicated below for SSPC surface preparation specifications and environmental exposure conditions of installed metal fabrications:
  6. Exteriors (SSPC Zone 1B): SSPC-SP 6/NACE No. 3, "Commercial Blast Cleaning."
  7. Interiors (SSPC Zone 1A): SSPC-SP 3, "Power Tool Cleaning."
  8. Apply shop primer to uncoated surfaces of metal fabrications, except those with galvanized finishes or to be embedded in concrete or masonry, unless otherwise indicated. Comply with requirements of SSPC-PA 1 "Paint Application Specification No 1" for shop painting.
  9. Stripe paint corners, crevices, bolts, welds, and sharp edges.
  10. Primer coating shall be one of the following manufacturers and coatings. Dry film thickness shall not be less than 3 mils or more if so recommended by the coating manufacturer.

1) Sherwin-Williams: Hi Solids Alkyd Metal Primer, Kem Bond HS, or Steel Spec. Universal Primer.

2) Pittsburgh Paints (PPG): Rapid Coat Epoxy Mastic

3) Standard Paint Co. White Universal Primer

4) ICI Dulux:Devguard 4160 Multi-Purpose Universal Primer

  1. Finish Paint: Full-gloss, exterior, alkyd enamel applied at spreading rate recommended by the manufacturer to achieve a total dry film thickness of not less than 3.0 mils.
  2. ICI Dulux: Devflex 4208 Gloss.
  3. Pittsburgh Paints (PPG):Pitt-Tech Industrial Enamel 90-374.
  4. Sherwin-Williams: DTM Acrylic Gloss Coating B66100.
  5. Colors: Provide the following subject to verification by Owner's Representative.
  6. Primer: White, Chrysler NPVP-N 9.5.
  7. Finish :

1) Inside Buildings At Vehicle Doors: Safety Yellow NPVP 3.75Y 8.5/12.

2) Outside Buildings At Fire Hydrants: Safety Red NPVP 7.5R 4/4.

PART 3 - EXECUTION

3.1 PREPARATION

  1. Coordinate delivery of items that are to be embedded in concrete to Project site.

3.2 INSTALLATION, GENERAL

  1. Set posts and bollards accurately in location, alignment, and elevation; with edges and surfaces level, plumb, true, and free of rack; and measured from established lines and levels.
  2. Provide temporary bracing or anchors in formwork for items that are to be built into concrete or similar construction.
  3. Fit exposed connections accurately together to form hairline joints. Weld connections that are not to be left as exposed joints but cannot be shop-welded because of shipping size limitations. Do not weld, cut, or abrade the surfaces of exterior units that have been hot-dip galvanized after fabrication and are intended for bolted or screwed field connections.
  4. Field Welding: Comply with the following requirements:
  5. Use materials and methods that minimize distortion and develop strength and corrosion resistance of base metals.
  6. Obtain fusion without undercut or overlap.
  7. Remove welding flux immediately.
  8. At exposed connections, finish exposed welds and surfaces smooth and blended so that no roughness shows after finishing, and contour of welded surface matches those adjacent.

3.3 INSTALLING HIGHWAY GUIDERAIL

  1. Anchor highway posts as indicated. Securely attach highway guiderails and end sections to posts.

3.4 INSTALLING PIPE BOLLARDS

  1. Anchor bollards in place with concrete footings. Support and brace bollards in position in footing excavations until concrete has been placed and cured.
  2. Fill bollards with concrete. Dome top of concrete fill for drainage.
  3. Finish paint bollards at specified locations.

3.5 ADJUSTING AND CLEANING

  1. Touchup Painting: Immediately after erection, clean field welds, bolted connections, and abraded areas of shop paint, and paint exposed areas with same material as used for shop painting to comply with SSPC-PA 1 requirements for touching up shop-painted surfaces.
  2. For galvanized surfaces, clean welds, bolted connections, and abraded areas, and apply galvanizing repair paint to comply with ASTM A 780.

END OF SECTION

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