00587.00 592 Section 00587 - Bridge Rails
Description
00587.00Scope - This Work consists of constructing bridge rails of the Material or combination of
Materials shown or specified.
Bridge rails will be classified as concrete or steel according to the predominant Material used in the rail.
Materials
00587.10Materials - Furnish Materials meeting the following requirements:
Coating Materials for Concrete .............................................................. 02210.30 Grout ..................................................................................................... 02080.30
Construction
00587.40General - Construct bridge rails:
• True to line, grade and dimensions shown or established, with a smooth, even top rail without following any unevenness in the Superstructure. • Vertical, rather than normal to the deck, whether the deck is superelevated or not, unless shown otherwise. • After falsework has been removed, so that the span is self -supporting.
00587.42Concrete Rails :
• Cast-in-place r ails may be slipformed as the Contractor elects subject to paragraph (c) of this Subsection. • Construct expansion joints which permit freedom of movement. After all other Work is completed, use a sharp chisel to remove all loose or thin shells of concrete likely to spall under movement at expansion joints.
removed without damage to the concrete. Make form joints in vertical planes. Construct all moldings, panel Work , and bevel strips as shown. Make corners in the finished Work true, sharp and free from cracks, spalls or other defects.
Before slipforming any permanent rail, the Contractor shall meet one or both of the following requirements (1) and (2) as directed:
• Place the test section off the Structure . • Use the same section and reinforcement as detailed for use on the Structure . 00587.43 593 • Include one typical contraction or O pen joint. • Remove at no additional cost to the Agency.
projects completed by the Contractor.
The Engineer will make the final decision about the use of slipforming on the Project based on Work quality. If slipforming is used, conform to the following:
• Provide concrete with a slump of 1 inch ± 1/2 inch. • Keep the top and faces of the finished rail free from sags, humps, and other irregularities. • Maintain contraction joints, open joints, and expansion joints to the dimensions shown until the concrete sets. • Use slipforming only for sections of rail with constant dimensions. Use fixed forms where dimensions vary, as at luminaire or signal supports and at rail end transitions. • Brush -finish exposed rail surfaces with vertical strokes. Do not grind brush-finished surfaces that are to receive a Class 1 finish. • Remove and replace any unsatisfactory Work at no additional cost to the Agency.
Class 1 surface finish (ground and coated) according to 00540.53 except as provided in 00587.42(c).
rails, the following procedure may be used:
• Allow free moisture to flash off, but only until the concrete surface does not glisten, and never for more than 1 hour. • Apply latex emulsion paint from the QPL as follows: • Apply the first coat at an application rate of 150 square feet per gallon. • Allow the first coat to air -dry for 1 hour. • Apply the second coat at an application rate of 150 square feet per gallon, with the application direction transverse to the direction of the first coat.
00587.43Metal Rails:
specifie d. Fabricate and erect metal rails according to Section 00560. Adjust metal rails before fixing in place to ensure proper matching at abutting joints and correct alignment and Camber throughout their length.
fabrication of the rail according to 02530.70. If galvanized portions of the rail are to be coated, coat according to Section 00594.
00587.80 594 Measurement
00587.80Measurement - No measurement of quantities will be made for Work performed under this
Section. Estimated quantities of bridge rails will be listed in the Special Provisions.
Payment
00587.90Payment - The accepted quantities of bridge rails will be paid for at the Contract lump sum
amount for the appropriate bridge rail items listed in the Contract Schedule of Items.
Payment will be payment in full for furnishing and placing all Materials, and for furnishing all Equipment , labo r, and Incidentals necessary to complete the Work as specified.
No separate or additional payment will be made for anchor bolts and anchorage devices, except those cast in precast concrete members. Payment for anchor bolt and anchorage devices in cast -in-place concrete members and for reinforcement extending from a precast unit, cast -in-place deck, wall or bridge approach slab into the rail will be included in payment made for the precast unit, cast -in-place deck, wall or approach slab, as appropriate.
Payment for guardrail terminal connectors, connection plates, spacer blocks and other connection hardware will be included in the payment for the guardrail transition item according to 00810.90.