564-4 02
NEW YORK STATE DEPARTMENT OF TRANSPORTATION Sections 200 - 599 STANDARD SPECIFICATIONS (USC) January 1, 202 4 Volume 2 B. Computed Weight. The density of steel used in computing weights for payment will be assumed to be 490 pcf. The density of cast iron will be assumed to be 450 pcf. The weights of rolled shapes and of plates of all dimensions will be computed based on their nominal weights as required by the dimensions shown on the approved shop drawings. If the Contractor elects to use steel members with weights that are greater tha n the nominal weights specified on the approved drawings for its convenience, the computations will be based on the nominal weight values shown on the approved shop drawings. Deductions will be made for copes, cuts and all holes except those holes require d for high -strength bolts. The weights of castings will be computed from the dimensions shown on the approved shop drawings, with an addition of 10% for fillets and overrun.
564-4.02 Each. The quantity to be measured for payment will be made on an ‘Each’ basis.
564.4.03 Lump Sum. The work will be measured for payment on a lump sum basis.
564-5 Basis of Payment
The price bid shall include the cost of furnishing all labor, materials and equipment necessary to satisfactorily complete the work, not including bridge bearings and associated anchor bolts. Payment will be made under: Item No. Item Pay Unit 564.05XX Structural Steel (Type 01 -22) Lump Sum 564.10nnnn Structural Steel Replacement Pound 564.51nnnn Structural Steel Pound 564.70nnnn Structural Steel Replacement Each NOTE : nnnn denotes a serialized pay item. SECTION 565 - BRIDGE BEARINGS
565-1 DESCRIPTION. The work shall consist of furnishing, placing and setting bridge bearings at the
locations indicated on the plans. The Contractor shall notify the Deputy Chief Engineer, Structures (DCES) of the name and address of the fabricator of all bridge bearings in accordance with §106 -01 Sources of Supply.
565-1.01 Bearing Types. There are various types of bearings. The specific type required will be
indicated on the plans. Bearing types are:
A.Type S.R. - Steel Rocker Bearings. These accommodate rotation by pivoting around a pinned joint. They are fabricated in fixed and expansion versions. The expansion version accommodates longitudinal movement by means of a curved rocker rotating on the bearing surface. Steel rocker beari ngs do not allow for transverse movement. This type of bearing shall only be used in rehabilitation situations where only one or two bearings are to be replaced on a bridge.
B.Type S.S. - Steel Sliding Bearings. These accommodate rotation by means of a rocker. They are fabricated in fixed and expansion versions. The expansion version accommodates movement with a sliding element. Steel sliding bearings do not allow for transverse movement. This type of bearin g shall only be used in rehabilitation situations where only one or two bearings are to be replaced on a bridge.
565-2 01
NEW YORK STATE DEPARTMENT OF TRANSPORTATION Sections 200 - 599 STANDARD SPECIFICATIONS (USC) January 1, 202 4 Volume 2 C. Type M.R. - Multi -Rotational Bearings. These accommodate rotation by the deformation of a confined elastomeric element, or an unconfined urethane disc. Multi -rotational bearings are fabricated in fixed and expansion versions. The expansion version accommodates movement by means of sliding e lements. Expansion versions may be guided, allowing movement in only one direction, or non -guided, allowing multi -directional movement.
D.Type E.P. - Plain Elastomeric Bearings. These accommodate rotation by the deformation of a plain elastomeric pad. They may be used for both fixed and expansion applications without changes in details. The bearings will accommodate longitudinal, transverse, and rotational movements.
E.Type E.L. - Steel Laminated Elastomeric Bearings. These accommodate rotation by the deformation of a laminated elastomeric and steel pad. They may be used for both fixed and expansion applications without changes in details. The bearings will accommodate longitudinal, transverse, and rotational moveme nts.
F.Type E.B. - Elastomeric Bearings with External Load Plates. These accommodate rotation by the deformation of a plain or steel laminated elastomeric pad. Elastomeric bearings with external load plates are fabricated in fixed and expansion versions. The fixed version will accommodate rotational movements. The ex pansion bearings will accommodate longitudinal, transverse, and rotational movements.
565-2 Materials
565-2.01 General. Materials shall meet the following requirements:
Concrete Grouting Material 701-05 Steel Anchor Dowel 709-01a Disc-Design Structural Bridge Bearings 716-06 Pot-Design Structural Bridge Bearings 716-07 Plain Elastomeric Bridge Bearings 716-10 Steel -Laminated Elastomeric Bridge Bearings 716-11 Elastomeric Bridge Bearings with External Load Plates 716-12 Rubber -Impregnated Woven Cotton Fabric 728-01 Rubber -Impregnated Random Fiber Pad 728-02 Plain Rubber Pad 728-03 Nuts ASTM A563 Washers ASTM F436 Anchor Studs ASTM F3125 GRADE A325 or A449 Type Cap Screws ASTM F835M or A574M Structural Steel Paint Class 1 708-01 NOTE a. Steel anchor dowels shall meet the requirements of §709 -01 - Bar Reinforcement.
565-2.02 Fabrication. Steel components of bridge bearings shall be fabricated in accordance with the
applicable requirements of the NYS Steel Construction Manual (SCM). In addition, component parts of individual bearings shall meet fabrication details as shown in the contrac t documents.
A.Type S.R. Bearings. These shall conform to the plans and other contract documents.
B.Type S.S. Bearings. These shall conform to the plans and other contract documents.
565-2 03
NEW YORK STATE DEPARTMENT OF TRANSPORTATION Sections 200 - 599 STANDARD SPECIFICATIONS (USC) January 1, 202 4 Volume 2 C. Type M.R. Bearings. These shall conform to the requirements of either §716 -06 or §716 -07 as applicable, and other contract documents. When type M.R. bearings are specified, the Contractor may supply either disc design or pot design bearings. Only one bearing design, disc or pot, shall be supplied for any one bridge.
D.Type E.P. Bearings. These shall conform to the requirements of §716 -10 and other contract documents.
E.Type E.L. Bearings. These shall conform to the requirements of §716 -11 and other contract documents.
F.Type E.B. Bearings. These shall conform to the requirements of §716 -12 and other contract documents.
565-2.03 Drawings. Shop drawings shall meet the requirements specified in the following:
Type S.R. and S.S. Bearings SCM Type M.R. Bearings 716-06 or 716 -07 Type E.L. Bearings 716-11 Type E.B. Bearings 716-12
565-2.04 Protective Coatings
A.Machine finished surfaces in contact, including pins, pin holes, surfaces in sockets at the top of rocker bearings, and bronze or copper plates in sliding contact shall receive one coat of automotive grease as soon as machining is complete. None of thes e surfaces shall be painted.
B.Stainless steel and polytetrafluoroethylene surfaces shall not be painted or otherwise coated.
C.Metal to metal surfaces to be field welded shall be given a coat of clear lacquer or other protective coating approved by the Engineer, or Inspector, if exposure is to exceed three months prior to welding. The coating shall be removed at the time of weld ing. Painting, if required, will be done only after the completion of welding. Surfaces to be painted shall be primed and painted in accordance with §565 - 2.04D.
D.All other metal surfaces shall be cleaned to meet SSPC -SP10, “ Near -White Metal Blast Cleaning ” and painted in accordance with section 572, Structural Paint System: Shop Applied. The paint shall be selected from the Department’s Approved List, Structural Steel Paints – Class 1. For bearings used in conjunction with unpainted steel, the color of t he finish coat shall Weathered Brown as defined by §708 -05.
565-2.05 Shipping. Each bearing shall be shipped as an assembled unit, except for elastomeric bearings.
Elastomeric bearings may be shipped in packages containing more than one bearing, provided the package can be handled with normal construction equipment. Bearings shal l be packaged in such a manner to protect all rotating and sliding surfaces from the intrusion of outside material. Bearings shall be packaged securely to prevent separation of the elements during shipping.
565-3 Construction Details
565-3.01 Concrete Bearing Surface Elevations
565-3 02
NEW YORK STATE DEPARTMENT OF TRANSPORTATION Sections 200 - 599 STANDARD SPECIFICATIONS (USC) January 1, 202 4 Volume 2 A. General. The elevation of the concrete bearing surface for all types of bearings, except Type M.R. bearings, shall be as given on the plans.
B.Type M.R. Bearings. The elevation of the concrete bearing surface may vary from that given on the plans depending on the vertical dimension of the actual bearing supplied. The Contractor shall notify the Engineer of all required elevation changes. Changes to the roadway p rofile will not be allowed. All elevation adjustments necessary to maintain the profile shall be made to the concrete bearing surfaces. Any adjustments, including changes to the reinforcement, will be made at no additional cost to t he State.
565-3.02 Concrete Bearing Surface Preparation. No bearing shall be placed upon a concrete bearing
surface which is deformed, irregular, or poorly finished. The entire bearing surface area shall be floated and troweled.
565-3.03 Setting Anchor Studs . Anchor studs shall be set as shown on the plans unless changes are
permitted by the DCES. If anchor studs are cast in substructure concrete, templates, or other suitable means, shall be used to keep the studs vertical at the required embedment and in the correct horizontal position during concrete placement. If the Contractor elects to drill the finished, cured concrete in order to set the anchor studs , the reinforcing steel shall be positioned prior to casting the concrete so that it will not be damaged during drilling. If anchor studs are drilled and grouted, material and construction details shall be in conformance with §586 -2 and §586 -3.
565-3.04 Bearing Pad Installation. Bearing pads placed between concrete, or other masonry, and steel
masonry plates shall be located to correct alignment and elevation, and placed at the time of masonry plate installation. Bearing pads shall conform to §728 -01, §728 -02, or §728 -03 at th e Contractor's option. Each bearing pad shall be the same size in plan as the masonry plate it supports. Holes to accommodate anchor studs shall be cleanly and accurately cut prior to bearing pad placement.
565-3.05 Bearing Installation and Alignment
A.Type S.R. and Type S.S. Bearings
1.General
a.The centerline of sole plates or fixed portions of bearing assemblies attached to the structural steel shall not be offset from the centerline of bearing stiffeners or diaphragm connection plates by more than one -half the thickness of the flange at that l ocation, or the thickness of the bearing stiffener or connection plate, whichever is the lesser distance.
b.The bearing shall be cleaned and regreased with automotive grease at the time of installation.
2.Fixed. No additional requirements apply.
3.Expansion. These may vary from perfect alignment. Therefore, expansion bearings shall be set in accordance with the following.
a.Type S. R. Bearings
1.The bearing shall be set vertical under full dead load at an ambient temperature of F.
565-3 05
NEW YORK STATE DEPARTMENT OF TRANSPORTATION Sections 200 - 599 STANDARD SPECIFICATIONS (USC) January 1, 202 4 Volume 2 (2) The maximum variation from perfect alignment is a function of the bearing height. The bearing height is the distance between the upper and lower contact surfaces of the movable portion of the bearing. For bearings with a height of 20 inches or less, the maximum variation from perfect alignment, taking into account the effect of temperature and load at the time of measurement, shall be calculated by the following formula: M = ± ( 1/2 inch + (L/ 14,000 ) ) where “M” = maximum variation from perfect alignment measured as the horizontal distance between the centerline of the cap plate and the centerline of the masonry plate in inches and “L” = total expansion length in inches between the centerline of the movable bearing being considered and the centerline of the fixed bearing, from which motion must progress. Such variations shall not exceed 1 inch offset, or a five degree rotation of the movable portion of the bearings from the required alignment, whichever is less. The maximum variation of all bearings having a height exceeding 20 inches shall be approved on an individual basis by the DCES.
3.No bearing adjustments shall be made until the completed structural slab has been in place for at least seven curing days. Any adjustments needed to meet the above requirements may require jacking the superstructure. All adjustments shall be accomplish ed according to a written procedure submitted by the Contractor for DCES approval. All adjustments shall be made at no additional cost to the State.
b.Type S. S. Bearings
1.The sliding plate shall be centered on the masonry plate under full dead load at an ambient temperature of 68 F.
2.The maximum variation from perfect alignment between the centerlines of the fixed and movable portions of the bearing device, taking into account the effect of temperature and load at the time of measurement, shall not exceed plus or minus 1/2 inch longitudinally. This variation shall be measured as the horizontal distance between the centerline of the sliding plate and the centerline of the masonry plate. The movable portion of the bearing device shall be fully supported by the fixed portion unde r all temperature and loading conditions.
3.No bearing adjustments shall be made until the completed structural slab has been in place for at least seven curing days. Any adjustments needed to meet the above requirements may require jacking the superstructure. All adjustments shall be accomplishe d according to a written procedure submitted by the Contractor for DCES approval. All adjustments shall be made at no additional cost to the State.
B.Type M.R. Bearings
1.General. The centerline of sole plates or other fixed portions of bearing assemblies attached to the structural steel shall not be offset from the centerline of bearing stiffeners or diaphragm connection plates by more than one -half the thickness of the flange at that location, or the thickness of the bearing stiffener or connection plate, whichever is the lesser distance.
2.Fixed. No additional requirements apply.
565-3 05
NEW YORK STATE DEPARTMENT OF TRANSPORTATION Sections 200 - 599 STANDARD SPECIFICATIONS (USC) January 1, 202 4 Volume 2 3. Expansion. These may vary from perfect alignment. Therefore expansion bearings shall be set in accordance with the following:
a.The sliding plate shall be centered on the masonry plate under full dead load at an ambient temperature of 68 F.
b.The maximum variation from perfect alignment between the centerline of the fixed and movable portions of the bearing device, taking into account the effects of temperature and load at the time of measurement, shall not exceed plus or minus 1 inch longitudinally unless otherwise indicated on the plans. This variation shall be measured as the horizontal distance between the centerline of the sliding plate and the centerline of the masonry plate.
c.No bearing adjustments shall be made until the completed structural slab has been in place for at least seven curing days. Any adjustments needed to meet the above requirements may require jacking the superstructure. All adjustments shall be accomplis hed according to a written procedure submitted by the Contractor for DCES approval. All adjustments shall be made at no additional cost to the State.
C.Type E.P. and Type E.L. Bearings
1.General
a.These bearings are designed to function properly provided that minimum distortion occurs along the beam axis under full dead load at an ambient temperature of 68
F.Elastomeric bearings shall be installed when the ambient temperature is between 40 and 80 F inclusive. The Contractor may elect to install the bearings when the ambient temperature is outside of the allowable range, provided the Contractor submits, and receives DCES approval, of an installation procedure that either resets the bearings whe n the temperature is in the allowable range or deforms the bearings so that they perform as if they were installed at 68 F.
b.For prestressed concrete superstructures, the bearing shall be anchored to establish the fixed end of the bridge as soon as possible after stringer erection. For adjacent prestressed box beams, or prestressed slab superstructures, the anchorage shall be completed prior to filling the shear keys. The method of anchorage shall be in accordance with the details shown on the plans. Anchor dowel holes shall be core drilled to the nominal size and depth and at the locations required by the plans. In lieu of core drilling, the Contractor may submit an installation procedure that incorporates the use of either preset anchor bolts or pipe sleeves to the DCES for approval. Prior to placing the anchor dowel, the hole shall be inspected and approved for filling by the Engineer. Fill material shall be in accordance with the details on the plans.
2.Fixed. No additional requirements apply.
3.Expansion
a.These may vary from perfect alignment. The maximum variation from perfect alignment under full dead load shall not exceed the value shown on the plans. This variation shall be measured as the horizontal distance between the centerline of the highest el astomer surface and the centerline of the lowest elastomer surface.
565-3 06
NEW YORK STATE DEPARTMENT OF TRANSPORTATION Sections 200 - 599 STANDARD SPECIFICATIONS (USC) January 1, 202 4 Volume 2 b. No bearing adjustments shall be made until the completed structural slab has been in place for at least seven curing days. Any adjustments needed to meet the above requirements may require jacking the superstructure. All adjustments shall be accomplish ed according to a written procedure submitted by the Contractor for DCES approval. All adjustments shall be made at no additional cost to the State.
D.Type E.B. Bearings
1.General
a.The centerline of sole plate or other fixed portions of bearing assemblies, attached to steel stringers, shall not be offset from the centerline of bearing stiffeners of diaphragm connection plates by more than one -half the thickness of the flange at tha t location, or the thickness of the bearing stiffener or connection plate, whichever is the lesser distance.
b.These bearings are designed to function properly provided that minimal distortion occurs along the beam axis under full dead load at an ambient temperature of 68
F.Elastomeric bearings shall be installed when the ambient temperature is between 40 and 80 F inclusive. The Contractor may elect to install the bearings when the ambient temperature is outside of the allowable range, provided the Contractor submits, and receives DCES approval, of an installation procedure that either resets the bearings whe n the temperature is in the allowable range or deforms the bearings so that they perform as if they were installed at 68 F.
2.Fixed. No additional requirements shall apply.
3.Expansion
a.These may vary from perfect alignment. The maximum variation from perfect alignment under full dead load shall not exceed the value shown on the plans. This variation shall be measured as the horizontal distance between the centerline of the highest el astomer surface and the centerline of the lowest elastomer surface.
b.No bearing adjustments shall be made until the completed structural slab has been in place for at least seven curing days. Any adjustments needed to meet the above requirements may require jacking the superstructure. All adjustments shall be accomplish ed according to a written procedure submitted by the Contractor for DCES approval. All adjustments shall be made at no additional cost to the State.
565-3.06 Welding
A.Type S.R. Bearings. Bearings shall be welded permanently to the structural steel only after all necessary adjustments have been made. All welding shall be done in accordance with the requirements of the SCM. The Contractor shall submit a Welding Procedure Specification to the DCES. No welding shall be performed until the manufacturer receives an approved Welding Procedure Specification.
B.Type S.S. Bearings. The requirements of §565 -3.06A shall apply.
C.Type M.R. Bearings. The requirements of §565 -3.06A shall apply except that during field welding operations the temperature of the steel adjacent to the rotational element shall not exceed
F.Temperature shall be controlled by welding procedures and monitored using temperature
565-3 07
NEW YORK STATE DEPARTMENT OF TRANSPORTATION Sections 200 - 599 STANDARD SPECIFICATIONS (USC) January 1, 202 4 Volume 2 indicating crayons, or other devices. Procedures, crayons, and other devices shall be acceptable to the Engineer. If the temperature limit is exceeded, the DCES and the Director, Materials Bureau shall be immediately notified. The DCES will provide the proper repair procedure, which may include complete replacement of the bearing. All repair work shall be done at no additional cost to the State.
D.Type E.B. Bearings. The requirements of §565 -3.06A and §565 -3.06C shall apply.
565-3.07 Grouting Anchor Bolt Holes. All slotted anchor bolt holes in masonry plates shall be filled
with concrete grouting material to the top edge of the hole. All excess grout material shall be cleaned from the bearing surfaces in a manner satisfactory to the Engineer. Slotted anchor bolt holes in fixed bearings may be filled any time subsequent to stringer placement. Slotted holes in expansion bearings shall be filled only after all necessary bearing adjustments have been made.
565-3.08 Final Verification. Prior to final acceptance of the bridge, the Engineer will verify that all
necessary adjustments have been made; that all steel bearings, or external load plates, are permanently welded or attached with cap screws to the superstructure steel as shown on the contract plans; that all slotted holes are completely filled with grout; that all anchor studs are firmly tightened; and that all other work required to make the bearings completely functional has been completed.
565-4 METHOD OF MEASUREMENT. Measurement will be taken as the number of bearings
installed in accordance with the Contract Documents.
565-5 BASIS OF PAYMENT. The unit price bid for each bearing shall include the cost of all labor,
materials, equipment and adjustment necessary to complete the work. All material between the bottom of the superstructure, and the top of the substructure, including anchor studs and sole plates, shall be included in the price bid for this item.
565-5.01 Progress Payments. Eighty percent of the quantity will be paid for after the bearing is
installed. The remainder of the quantity will be paid for after the bearing is aligned. Payment will be made under: Item No. Item Pay Unit 565.1121 Type S.R. Expansion Bearing (All Load Ranges) Each 565.1221 Type S.R. Fixed Bearing (All Load Ranges) Each 565.1321 Type S.S. Expansion Bearing (All Load Ranges) Each 565.1421 Type S.S. Fixed Bearing (All Load Ranges) Each 565.1521 Type M.R. Expansion Bearing (0 to 225 k) Each 565.1522 Type M.R. Expansion Bearing ( 226 to 450 k ) Each 565.1523 Type M.R. Expansion Bearing ( 451 to 675 k ) Each 565.1524 Type M.R. Expansion Bearing ( 676 to 900 k ) Each 565.1525 Type M.R. Expansion Bearing (Over 900 k ) Each 565.1721 Type M.R. Fixed Bearing (0 to 225 k ) Each 565.1722 Type M.R. Fixed Bearing ( 226 to 450 k ) Each 565.1723 Type M.R. Fixed Bearing ( 451 to 675 k ) Each 565.1724 Type M.R. Fixed Bearing ( 676 to 900 k ) Each 565.1725 Type M.R. Fixed Bearing (Over 900 k ) Each 565.1821 Type E.P. Bearing (All Load Ranges) Each 565.1921 Type E.L. Bearing (0 to 55 k) Each 565.1922 Type E.L. Bearing ( 56 to 111 k ) Each 565.1923 Type E.L. Bearing ( 112 to 168 k ) Each
566-1 01
NEW YORK STATE DEPARTMENT OF TRANSPORTATION Sections 200 - 599 STANDARD SPECIFICATIONS (USC) January 1, 202 4 Volume 2 565.1924 Type E.L. Bearing ( 169 to 225 k ) Each 565.1925 Type E.L. Bearing (Over 225 k ) Each 565.2021 Type E.B. Fixed Bearing (0 to 55 k) Each 565.2022 Type E.B. Fixed Bearing ( 56 to 111 k ) Each 565.2023 Type E.B. Fixed Bearing ( 112 to 168 k ) Each 565.2024 Type E.B. Fixed Bearing ( 169 to 225 k ) Each 565.2025 Type E.B. Fixed Bearing (Over 225 k ) Each 565.2031 Type E.B. Expansion Bearing (0 to 55 k) Each 565.2032 Type E.B. Expansion Bearing ( 56 to 111 k ) Each 565.2033 Type E.B. Expansion Bearing ( 112 to 168 k ) Each 565.2034 Type E.B. Expansion Bearing ( 169 to 225 k ) Each 565.2035 Type E.B. Expansion Bearing (Over 225 k ) Each 565.30 Rubber Impregnated Woven Cotton -Polyester Fabric Each SECTION 566 - MODULAR EXPANSION JOINT SYSTEMS (Last Revised January, 2021)
566-1 DESCRIPTION. The work shall consist of fabricating, furnishing, and installing a modular
expansion joint system at the locations indicated on the Contract Plans.
566-1.01 Modular Joint Systems. Modular expansion joint systems are manufactured in various sizes,
defined by their total movement capability. The correct movement capability required at any one location is indicated on the Contract Plans.
566-1.02 Sealing Elements. On each individual structure, all the seals used in the modular joints shall
be of the same configuration and shall be from the same manufacturer.
566-1.03 Modular Joint System Suppliers
A.Multicell Modular Joint Systems. Only firms which appear on the Department’s Approved List will be acceptable suppliers. No supplier other than those listed will be considered.
B.One Cell Modular Joint Systems. Firms that do not appear on the Department’s Approved List may supply one cell Modular Joint Systems. Firms which appear on the Department’s Approved List will also be acceptable suppliers.
566-1.04 Terminology. The following terminology will be used throughout this section:
A.Joint System. This term is used to describe the installation with all of its component parts as installed in the structure slab, and if applicable in sidewalks, barriers and other bridge components.
B.Segment. A modular joint system manufactured at less than full roadway width. No segment shall be less than a single lane width long.
C.Joint. The separation between two elements of a bridge to allow for movement.
566-2 MATERIALS. Materials shall conform to the following requirements.
566-2.01 Modular Joint System. The modular joint system and all its component parts, including
stiffening plates and anchorages, shall be supplied by the Manufacturer. The Manufacturer shall certify that the following components meet the listed requirements:
Source: New York Standard Specifications, 2024 Edition. Pages 352–359 of 1,264.