510BRIDGES

370

expansion joints, scuppers and drains, electrical conduit and equipment, shall be included in the bid price for the concrete, unless otherwise provided on the plans or in the proposal. Steel reinforcement, metal expansion joints, and metal bearings will not be included in the price bid for the concrete but shall be paid for under the appropriate pay item. In case of widening or extension of an existing structure, the breaking away of existing concrete to the approximate lines shown on the plans and disposing of broken concrete and preparing steel reinforcement for splicing as required, will be paid for under Section 206. The accepted mass concrete, measured as noted above, will be paid for in accordance with the unit price coverage that applies to this element type as defined in either Article 503.05 or Item 510.06. The development of the TCP and all equipment, tools, labor, and incidentals necessary to control concrete temperatures shall be included in the bid price for the concrete. All equipment, tools, labor, and incidentals necessary to measure and monitor the in-place concrete temperature as required herein shall be included in the bid price for the concrete. No additional compensation will be allowed for constructing or placing expansion joints, scuppers, drains, weep holes, or for placing service pipes or conduits, anchor bolts, plates, castings, grillages, or metal bearings or appurtenances, as such are considered incidental to the placing of concrete or other items of the work, unless otherwise noted by the plans or proposal. Payment for grooving concrete bridge decks will be made at the contract unit price bid per square yard {square meter} which will be full compensation for furnishing the necessary equipment, tools, and labor to perform the work.

Payment for concrete measured on a cubic yard {cubic meter} basis as described above will be made at the contact unit price per cubic yard {cubic meter}, complete in place, for the various classes of concrete listed on the plans and the proposal.

Payment for each accepted Bridge Concrete Superstructure unit will be made at the contract lump sum price bid for each unit, complete in place. Partial payments will be made on monthly estimates based on the percentage of the total work performed on each unit as estimated by the Engineer. The number of cubic yards {cubic meters} shown on the plans and in the proposal is approximate only and the lump sum amount bid for each unit will not be increased or decreased except as outlined below. Structural steel, reinforcement and precast-prestressed concrete units are covered by other pay items. An increase, or decrease, in the approximate quantity of surface deck area for bridge concrete superstructure required from that shown on the plans which is caused by a design change after the contract has been let will result in an increase, or decrease, in the compensation due the Contractor. This compensation will be made, either increase or decrease, as a proportional amount of the contract bid price of Item 510-C. For any other changes in the approximate quantity of bridge concrete superstructure, price adjustments will be made in accordance with Article 104.02.

Payment for concrete measured on a cubic yard {cubic meter} basis as described above will be made at the contact unit price per cubic yard {cubic meter}, complete in place, for the various classes of concrete listed on the plans and the proposal.

Payment for each Superstructure Mass Concrete unit will be made at the contract lump sum price bid for each unit, complete in place.

Payment for Bridge Barrier Rail will be at the contract price per linear foot, complete in place. Reinforcing steel will be paid under Section 502.

The number of cubic yards {cubic meters} shown on the plans and in the proposal is approximate only and the lump sum amount bid for each unit will not be increased or decreased.

510-A Bridge Substructure Concrete - per cubic yard {cubic meter} 510-B Bridge Concrete, Class ___ - per cubic yard {cubic meter} ELASTOMERIC BEARINGS 371

510-C Bridge Concrete Superstructure, *, **, *** - per lump sum 510-E Grooving Concrete Bridge Decks - per square yard {square meter} 510-G Mass Bridge Concrete Substructure - per cubic yard {cubic meter} 510-H Mass Bridge Concrete Superstructure, *, **, *** - per lump sum 510-J Bridge Barrier Rail, Type ____ - per linear foot * Station Number, Bridge Identification Number (BIN), Ramp Number, etc. ** Lane, if applicable *** Approximate quantity of superstructure concrete in cubic yards {cubic meters} ELASTOMERIC BEARINGS

511.01Description

This Section shall cover the work of furnishing and installing elastomeric bearings for all types of bridge girders. An elastomeric bearing shall consist of at least a single layer of elastomer and may consist of a possible combination of elastomeric layer(s), internal steel sheet laminate(s), PTFE layer, bearing and/or sole plates, and a stainless steel plate.

511.02Materials

All elastomeric bearings furnished for use shall be from an approved producer listed on List I-17, PRODUCERS OF ELASTOMERIC BEARING PADS, of the Department's MSDSAR manual. Refer to Subarticle

106.01(f) and ALDOT-355 concerning this list

Elastomeric bearings shall be fabricated to conform with the material requirements given on the Plans and in Section 837.

511.03Construction Requirements

Unless noted otherwise on the plans or in these specifications, Shop Drawings for the elastomeric bearings shall be submitted to the Bridge Engineer for approval. Shop Drawings will not be required for the elastomeric bearings for precast concrete bridge components furnished under Section 512. The elastomeric bearings will be identified on the plans by Type (Type 1, 2, 3, 4, or 5) and may be further identified by a Mark (Mark B1, B2, VB1, etc.). Rust that occurs on the portions of bearing plates that are left ungalvanized for welding shall be cleaned to bare metal prior to welding. All exposed surfaces of the sole plate, all uncoated surfaces of the bearing plate and all weld metal shall be coated after welding with galvanizing repair paint that meets the requirements given in SECTION 855.

511.04Method of Measurement

The elastomeric bearings will be measured per each for each type of bearing. The bearings measured for payment do not include the randomly selected samples for testing.

511.05Basis of Payment

The unit price bid per bearing shall include all costs for equipment, materials (including bearing plates, sole plates, PTFE, and stainless steel plates), cleaning, painting, labor, bearings furnished for sampling and testing, shop drawings, and all incidentals necessary to furnish and install the complete bearing assembly.

511-A Elastomeric Bearing Type * (Mark ** ) - per each * Bearing Type (1, 2, 3, 4, or 5) ** Optional Bearing Mark (B1, B2, VB1, etc.)