Request for Proposals ("erfp")


BODY SPECIFICATIONS BODY FRAME STRUCTURE



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BODY SPECIFICATIONS




  1. BODY FRAME STRUCTURE


The integrated body shall be structurally fabricated using 1010/1020 low carbon steel rectangular tubing. The body frame structure as presented shall meet or exceed the rollover requirements of FMVSS 220.


  1. SIDE AND END FRAMING   Side and end frames shall be designed and constructed to carry the loads and stresses imposed and absorb excessive road shocks. Side doors and window openings shall be reinforced with gussets to transfer stresses around these openings.




  1. ROOF FRAMING   Roof shall be designed to withstand roll over structure stresses. The crossframe shall be stretched formed steel tubing attached to the upper continuous high yield structural side wall rails.



  1. CORROSION PROTECTION


The body structure shall incorporate a state-of-the-art corrosion protection system on all steel structural members of the bus. Corrosion protection shall be included inside as well as the exterior of all tubular body structures. Complete details of the required corrosion protection program are listed below.


  1. IN-TUBE CORROSION PROTECTION - The inside of all structural tubing shall be sprayed with Ziebart - Formula A, meeting C62218A.




  1. BODY CAGE PREPERATION - The steel cage structure and all related metals parts shall be welded into a complete frame assembly. This assembly shall be moved into a blast booth where it shall be blasted entirely with 40/50 mix of steel grit medial, providing all steel parts with a 1-mil physical profile for paint adhesion.




  1. BODY CAGE CORROSION PROTECTION - After blasting the cage it shall be moved to a cross-flow paint booth. The cage shall be prepared and primed using PPG corrosion resistant epoxy primer/sealer #CRE 904. In critical corrosive areas PPG - Corashield shall be applied which has been ASTM tested to 1000 hours of salt spray. The protected cage shall then be baked at 140 for 20 minutes to ensure proper curing.




  1. BODY SEALING - All welded butt joints shall be sealed with Sikaflex 221, a polyurethane adhesive sealant curing to a permanently elastic protective seal along the edges.



  1. BONDING MATERIAL - 3M double face tape shall be used between the body panels and the steel frame for bonding and separation of dissimilar metals.




  1. VEHICLE UNDERCOATING - The understructure of the vehicle floor and wheelwells shall be coated with BASF - Degacoat 310, heavy-duty undercoating.

  1. ENGINE FIREWALL


Rear engine firewall shall be a weld fabricated carbon steel panel design: to provide a superior fire resistant barrier. The panel shall be covered on the engine side with 1” Barymat sound and thermo blanket.

  1. FRONT TOW HOOKS


Two (2) towing hooks shall be provided, and accessible under the front bumper.

  1. SHOP AIR


A shop air fitting with quarter-turn valve shall be mounted either in front under bumper, or at rear engine compartment (or both) to provide shop air to the bus air system.

  1. JACKING/HOISTING


A service jack rated for the vehicle weight shall be provided that can be placed under the front and rear axle. The steel frame structure in specified locations shall support the weight of the vehicle.

  1. OPERATOR’S PLATFORM


A raised platform shall be provided to ensure better visibility for the operator in a seated position.

  1. STEPWELLS


Doorways shall be formed and weld fabricated, using corrosion protected 11-gauge steel in a two (2) step design.

  1. WHEEL HOUSINGS


Wheel housings shall be formed and fabricated using corrosion protected 14-gauge steel housings shall be installed between the under-structure and the plywood sub-floor.

  1. EXTERIOR BODY PANELS


Various light weight, durable materials shall be used to provide the sleek, streamlined appearance. These panels shall be installed using methods allowing for a smooth surface without exposed fasteners.


  1. UPPER SIDEWALL PANELS - Roller leveled 5052, .080 aluminum panel secured with 3M tape.




  1. LOWER SIDEWALL PANELS - The lower sidewall panels shall be fabricated of .166" composite material for superior corrosion-proof durability.




  1. ROOF PANELS - Roller leveled 5052, .063” aluminum panel. The center panel shall be installed as one continuous piece along the center with structural sealing and rivets around the perimeter edge seam.




  1. ROOF CORNER PANELS - Roof corner panels shall be fabricated of contoured .080" aluminum. Panels shall be full length and installed with structural sealing and rivets.




  1. FRONT AND REAR CROWNS - Contoured and aesthetically molded, reinforced fiberglass. Sections shall be installed with structure caulking, rivets and moldings.




  1. SEALING - All panels shall be caulked with paintable sealants prior to prime treatment. Side panels are undercoated.



  1. RAIN GUTTERS


Rain gutters shall be installed on each side to prevent water flowing from the roof on to passenger doors, operator’s side window and exterior mirrors.

  1. FENDER TRIM


Molded flexible rubber fender trim, forming a smooth contoured wheel opening designed and installed to be easily replaceable, shall be included. Fender trim shall not interfere with wheel and tire removal.


  1. Directory: PRSapp -> bid-documents -> EQ Folder
    EQ Folder -> 6 Full Power Racks with Pull Up Bar (Maximum 8 feet tall)
    bid-documents -> Request for Qualifications
    bid-documents -> Invitation to bid your firm is hereby invited to submit to the City of Atlanta, Department of Procurement “dop
    bid-documents -> Invitation to bid your firm is hereby invited to submit to the City of Atlanta, Department of Procurement “dop
    bid-documents -> Wednesday, September 10, 2014 addendum number 1 Solicitation Number: itb 900 15-625 Title: Parking Areas & Decks Cleaning & Sweeping
    bid-documents -> Invitation to bid your firm is hereby invited to submit to the City of Atlanta, Department of Procurement “dop
    bid-documents -> Atlanta Falcons Stadium Company, llc (“Falcons”) Georgia World Congress Center Authority (“Authority”)
    EQ Folder -> Attachment "E"
    EQ Folder -> Georgia department of corrections

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