585STRUCTURAL LIFTING OPERATIONS

585-1 01

NEW YORK STATE DEPARTMENT OF TRANSPORTATION Sections 200 - 599 STANDARD SPECIFICATIONS (USC) January 1, 202 4 Volume 2 Payment will be made under: Item No. Item Pay Unit 584.3001nn Overlay Concrete, Microsilica Concrete – Type 1 Friction Square Yard 584.3002nn Overlay Concrete, Microsilica Concrete – Type 2 Friction Square Yard 584.3003nn Overlay Concrete, Microsilica Concrete – Type 3 Friction Square Yard 584.3009nn Overlay Concrete, Microsilica Concrete – Type 9 Friction Square Yard 584.3101nn Overlay Concrete, Class DP – Type 1 Friction Square Yard 584.3102nn Overlay Concrete, Class DP – Type 2 Friction Square Yard 584.3103nn Overlay Concrete, Class DP – Type 3 Friction Square Yard 584.3109nn Overlay Concrete, Class DP – Type 9 Friction Square Yard 584.3200nn Slab Reconstruction Concrete, Class D, DP or Microsilica Concrete Square Yard NOTE : nn denotes a serialized pay item. SECTION 585 - STRUCTURAL LIFTING OPERATIONS (Last Revised May, 2019)

585-1 DESCRIPTION. This work shall consist of raising, supporting, and lowering each designated

bearing point to perform the tasks specified in the contract documents. This work shall also include the temporary shoring of a bearing point where a shim tight installation is designated on the plans. Examples of work specifying a shim tight installation include, but are not limited to: • Temporary shoring of capbeams during staged construction. • Temporary shoring of girders during substructure rehabilitation. • Temporary shoring of a bridge construction stage to decrease or eliminate live load deflection.

585-1.01 Bearing Point. The term bearing point is defined as a point on the structure which is designated

on the plans to be raised or shored to perform other work.

585-1.02 Lift Point. The term lift point is defined as a point on the structure where the lifting force is

applied.

585-1.03 Type. The type designation is used to distinguish between different methods of accomplishing

thework, and/or significantly different lifting loads. Such situations will be noted on the contract plans. They will be defined by a type designation. The type designation will be reflected in the pay item title (e.g., 5 85.01 Structural Lifting Operations - Type A, etc.).

585-2 Materials

585-2.01 Used Materials. Used materials will be allowed. Those materials that are permanently attached

to the structure shall be new, and meet the requirement of the New York State Steel Construction Manual and the following requirements: Structural Steel 715-01 High Strength Bolts, Nuts and Washers 715-14 Pins and Rollers 715-15

585-2.02 Lifting Equipment. Unless otherwise specified in the contract documents or plans, the choice

of structural lifting system and/or temporary shoring shall be at the Contractor's option, subject to the following provisions:

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NEW YORK STATE DEPARTMENT OF TRANSPORTATION Sections 200 - 599 STANDARD SPECIFICATIONS (USC) January 1, 202 4 Volume 2 Jacks used for lifting operations shall have the rated capacity clearly shown on the manufacturer's name plate attached to each jack. Jacks shall have a rated capacity of a least one and a half times the calculated lifting force. Lifting equipment deemed to be inadequate or faulty shall be removed from the site. Jacks shall be equipped with pressure gauges or other load measuring devices that will enable the applied lifting force to be monitored. Jacks and associated lifting equipment shall be calibrated as per manufacturer’s instructions.

585-3 Construction Details

585-3.01 General. Unless a specific distance is shown on the plans, each designated bearing point shall

be raised the minimum distance that will allow the work to be completed. The Contractor shall engage the services of a Professional Engineer to design and detail the structural lifting system and/or temporary shoring. The Professional Engineer shall be available for consultation in interpreting their plans and in the resolution of problems which may arise during the performance of the work. The Contractor and the Professional Engineer shall be intimately familiar with the current condition of the existing superstructure with respect to the structural capacity of the members. All field welding and slip critical connections shall be performed in accordance with the New York State Steel Construction Manual . For slip -critical connections, the class of slip resistance shall be specified on the working drawings. The Contractor shall furnish lift plans and calculations for the installation of the structural lifting system and/or temporary shoring structural elements as per the requirements in §107-05 P.2 Lift Plans . If drilling and grouting into existing concrete is included as part of the structural lifting system, the DCES will determine the need for pull -out testing based on The New York State Bridge Manual . A non - destructive investigation shall be performed by the Contractor to determine the location of existing reinforcing steel prior to drilling. If reinforcing steel conflicts with, or is encountered during the drilling operation, the DCES shall be notifie d by the Contractor to determine the appropriate course of action. At no time shall reinforcement be cut without the approval of the DCES. All drilling and grouting operations shall comply with Section 586 Miscellaneous Structural Reconstruction. Spalled concrete in areas to be drilled and grouted shall be repaired prior to the installation of the lifting equipment. If drilling and grouting into repaired spalled concrete, the embedment depth, subject to the contractor’s engineer’s approval, may only include the depth of repair behind the reinforcement. If the drilling and grouting is into unreinforced concrete, the em bedment depth shall be measured into existing sound concrete only, and shall not include the depth of the repair.

585-3.02 Loads. The contract documents designate, by type, the bearing points to be raised or shored to

perform the contract work. The unfactored loads at each bearing point are shown in the contract documents. The Contractor and the Professional Engineer shall determine the appropriate lateral and longitudinal loads in the design of the structural lifting system and/or temporary shoring. The Contractor shall select the location of the lift points, subject to the approval of the DCES, and calculate the re quired lifting force at that location. All design and details shall be in conformance with the current AASHTO Guide Design Specifications for Bridge Temporary Works, with the following revisions:

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NEW YORK STATE DEPARTMENT OF TRANSPORTATION Sections 200 - 599 STANDARD SPECIFICATIONS (USC) January 1, 202 4 Volume 2 D. The presumptive soil bearing values shown in Table 2.5.2 -1 shall not apply for footings located on slopes exceeding a 1 vertical on 6 horizontal. In these cases, designs should be based on either the current AASHTO Standard Specifications for Highway Bridges or the AASHTO LRFD Bridge Design Specifications . Structural lifting system and/or temporary shoring submittals shall be designed to Inventory Level. Operating Level designs will not be allowed. The design of the structural lifting system shall include a narrative of how lateral and longitudinal stabili ty of the structure is maintained while in a supported position.

585-3.03 Working Drawings. The Contractor shall furnish legible working drawings, prepared, sealed

and signed by a Professional Engineer, for the system proposed to raise, support, and lower, or temporarily shore each designated bearing point. The working drawings shall not alter th e number or location of designated bearing points shown on the contract documents.

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NEW YORK STATE DEPARTMENT OF TRANSPORTATION Sections 200 - 599 STANDARD SPECIFICATIONS (USC) January 1, 202 4 Volume 2 3. One work day for every four (4) design computation sheets. Any design computation sheet written on both sides will be considered as two design computation sheets. Time for review will begin upon receipt of all pertinent information by the DCES. The DCES comments will be indicated on the returned copies. Should the proposed system not be approved, the reasons will be indicated with the return of the material. The Contractor shall submit revised drawings and design computations for approval, subjec t to the same terms as the first submission. Resubmission will not be considered a reason to request an extension of time. The review of the design calculations and working drawings by the Department shall not relieve the Contractor of any responsibility for safely and adequately designing and installing the lifting system and/or temporary shoring. All work shall be done in accordance with the approved working drawings. The Contractor must have approved working drawings prior to the start of any structural lifting operations. The Contractor shall bear all costs and/or damages which may result from t he ordering of any materials, or equipment; or the use of any preparatory labor prior to the approval of the working drawings.

585-3.04 Lifting Operations. The Contractor shall raise each designated bearing point by applying

the necessary lifting force at each lift point. If the anticipated structure liftoff pressure is reached prior to the structure lifting, the structural lifting operation shall stop. The Contractor and its Professional Engineer shall investigate the causes of why the structure failed to lift. Concurrence from the Engineer must be obtained prior to restarting the lifting operation. The Contractor shall not apply a lifting pressure in excess of the calculated maximum allowable lifting pressure stated on the working drawings. During all phases of the operation, the differential lift between any two adjacent bearings on a common centerline of bearing shall not exceed 3/8 inch unless approved by the DCES. The Contractor shall, at the earliest possible moment during or after each lift, safely secure the structure with shims, cribbing, bolsters, or other suitable supports. After the structure has been raised the structural lifting system shall be positively connected to the existing structure. The lifting operation shall be conducted such that the distance between the structure and the shims, cribbing, bolsters, or other suitable supports shall not exceed 3/8 inch at any time. Any replacement, repair, or adjustments to the superstructure steel due to the structural lifting operations shall be performed in accordance with the current New York State Steel Construction Manual . All materials required for temporary support of the structure shall remain the property of the Contractor and shall be removed from the site after the work is completed.

585-3.05 Inspection. Structural lifting systems, and temporary structural supports, that are to remain in

place for a period exceeding one year shall be inspected by a Professional Engineer hired by the Contractor. The Professional Engineer shall certify in writing to the E ngineer that the structural system can continue to function as originally designed.

585-4 METHOD OF MEASUREMENT. The quantity to be measured for payment will be the number

of bearing points raised.

585-5 BASIS OF PAYMENT. The unit price bid per bearing point shall include the cost of all labor,

materials and equipment necessary to satisfactorily complete the work. Payment will be made only once for each bearing point regardless of the number of times the bearing point is r aised. Progress payments will be made after all temporary supports have been installed and any required lifting has been performed. Payment will be made for 70 percent of the quantity. The remaining 30 percent will be paid for after the bearing points have been lowered to their final permanent position and the lifting equipment and temporary supports have been removed.

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NEW YORK STATE DEPARTMENT OF TRANSPORTATION Sections 200 - 599 STANDARD SPECIFICATIONS (USC) January 1, 202 4 Volume 2 Payment will be made under: Item No. Item Pay Unit 585.XX Structural Lifting Operations - (Types A - K) Each XX (01 through 11) = Type Designation (A through K) SECTION 586 - MISCELLANEOUS STRUCTURAL RECONSTRUCTION (Last Revised September , 201 9)

586-1 Description

586-1.01 Drilling and Grouting Anchors. This work shall consist of drilling and grouting anchors. For

the purposes of this specification, the term ‘anchors’ refers either to bolts or to reinforcing bars, as appropriate. When the item number indicates Pull -Out Testing is required, all anchors s hall be paid for under that item number regardless of whether they are selected to be tested.

586-1.02 Removal of Rivets -Replacement with High Strength Bolts. This work shall consist of

removal of rivets and replacement with high strength bolts.

586-1.03 Field Drill Holes in Existing Structural Steel. This work shall consist of field drilling holes in

existing structural steel that is in service prior to the beginning of construction.

586-2 Materials

586-2.01 Drilling and Grouting Anchors. Grout Material used in Permanent applications where a

sustained tensile load will exist, shall conform to §701 -05 Concrete Grouting Material . Grout used in other applications shall conform to either §701 -07 Anchoring Materials - Chemically Curing or §701 -05 Concrete Grouting Material . Chemically curing anchoring materials or adhesives are referred to herein as grout. Permanent and temporary installations using Anchoring Materials – Chemically Curing shall be designed using the current edition of ACI 318 for the given loading conditions. Anchoring Materials – Chemically Curing shall not be used in permanent applications where sustained tensile loads will exist, including but not limited to all horizontal or overhead applications, as well as all angles in between. Installation of anchors f or Bridge railing, decorative railing, pedestrian fence and screening are not typically subject to sustained tensile loads. Some cantilever applications can produce sustained tensile loads, and chemically curing anchors shall not be used in these applicati ons. When such work is required, alternative anchoring methods or materials such as mechanical anchors or cementitious grouting operations shall be used in these locations. Use of alternate materials or methods not previously approved shall require approval of the Deputy Chief Engineer Structures (DCES). Anchoring Materials – Chemically Curing may be used for temporary applications, not including overhead applications, as a part of a design sealed and signed by a Professional Engineer.

586-2.02 Removal of Rivets - Replacement with High Strength Bolts. High strength bolts, nuts and

washers shall meet the requirements of §715 -14 High Strength Bolts, Nuts and Washers . If paint color is not specified, the color selected shall match the existing paint. Paint shall meet the requirements of §708 - 02, Structural Steel Paint - Class 2 .

586-2.03 Field Drill Holes in Existing Structural Steel. None Specified.

586-3 Construction Details