Effective with the December 2018 Letting 284 2019 Standard Spec ifications Section 514 Floor Drains, Deck Drains, and Downspouts
514.1Description
for railroad structures.
514.2Materials
514.2.1 General
Structural car bon steel ....................................... .......................................................................................... 506.2 Miscellaneous metals .......................................... ........................................................................................ 506.2 Cast Iron ..................................................... ......................................................................... ASTM A48 , class 30 514.2.2 Highway Structures
After fabrication, blast clean and zinc coat steel components according to ASTM A123 as follows: - Structural steel frames and grates. - Steel pipes, clamps, fittings, and brackets for lateral pipin g.
conforming to ASTM D2996 , designation code RTRP-12EA1-2122 or RTRP-11AQ2-2112. Furnish stainless steel brackets for attaching RTRP to the structure.
conforming to 513.2.1 . Unless the plans show otherwise , use 1/2-inch diameter anchor bolts.
concrete used in aprons for dow nspouts. Provide QMP for class I I ancillary concrete as specified in 716. 514.2.3 Railroad Structures
unperforated outlet stubs and do wnspouts of the sizes and gauges the plans show. Ensure that these components are galvanized and fully coated with asphalt accordi ng to AASHTO M190.
514.3Construction
514.3.1 Floor Drains
514.3.2 Adjusting Floor Drains
and apply a shop coat of primer. Touch up areas of damaged primer after installation with a department-approved organic zinc-rich primer.
department-approved ready-mixed l eafing aluminum paint. Brush c lean existing drain grates and apply a similar coat of leafing aluminum paint. 514.3.3 Railroad Structure Deck Drain Systems
conforming to the shop drawings and as the plans show.
place. Ensure that pipe perforations are not plugged with aspha lt. Clear plugged holes without exposing bare metal using engineer-approved methods. 514.3.4 Downspouts
epoxy adhesive following the RTRP pipe manufacturer's installation recommendations. Make connections to steel or cast i ron components as the plans show.
and pipe fittings either pigmented throughout or that have a re sin-rich pigmented exterior coat specifically designed for overcoating fiberglass, as the RTRP m anufacturer recommends.
Effective with the December 2018 Letting 285 2019 Standard Spec ifications (3) Space brackets every 12 feet on center or closer. Place at least one bracket at each elbow and 2 brackets, one on each side, at eac h lateral joint connection. A ttach to concrete piers, abutments, and decks using adhesive anchor bolts.
514.4Measurement
drain acceptably completed.
each railroad structure acceptably completed.
measured in place along the cent erline of pipe, from end to end through all fittings.
514.5Payment
items: ITEM NUMBER DESCRIPTION UNIT
514.0400 - 0499 Floor Drains (type) EACH
514.0900 Adjusting Floor Drains EACH
514.1000 Railroad Deck Drain Syst em (railroad structure) LS
514.2600 - 2699 Downspout (inch) LF
frames, grates, and lateral pipes.
including new materials; and for required fabrication, cleaning , and painting.
drainage system; for shop drawi ngs; and for asphalt coatings.
attachment hardware; and for providing concrete aprons.
Effective with the December 2018 Letting 286 2019 Standard Spec ifications Section 515 Steel Grid Floors
515.1Description
515.2Materials
class I structure concrete as specified in 715.
515.3Construction
515.3.1 Fabrication
the plans show; and so if assembled in place they conform to the camber the plans show. The engineer will reject steel grid floors not within 1/2 inch of s pecified camber. Serrate the top edges of open type grid floors.
the full width of the roadway for roadways up to 40 feet wide. If multiple units are allowed, extend the units over at least 3 panels. If t he main elements are parallel to the centerline of the roadway, extend the section over no t less than 3 panels. If j oints are required , weld the ends of all main floor members at the joints over their full cr oss-sectional area to provide full continuity and, preferably, place joints, if assembling the floor in place, over a supporting member.
drawings shall show the spacin g and size of component parts, th e size and length of welds, splices and trims, and complete assembly details, including size and lo cation of recommended erection welding.
concrete filler. 515.3.2 Erection
and connecting members between the sections to provide full con tinuity for the entire floor or between any points the plans show. Weight the floor assembly down or cl amp it in place to make a tight joint with full bearing on its supports before welding. If there is a roadway crown, weld beveled bars to the stringer flange to provide a bearing surface parallel to the cr own, unless placing the stringers with their vertical axes normal to the crow n. Use the location, size, and length of the welds that the manufacturer recommends or as the engineer approves. 515.3.3 Welding
Steel. 515.3.4 Painting
paint. Clean field welds of scale or slag and neutralize the welds as specified in 517.3.1.3.1 before spot painting. 515.3.5 Concrete Filler
concrete thoroughly by vibrating. The vibrating device and manner of operation are subject to the engineer’s approval.
515.4Measurement
515.5Payment
items: ITEM NUMBER DESCRIPTION UNIT