Cubic Foot Aluminum cast or wrought 173.0 Bronze, cast 536.0 Copper -alloy 536.0 Copper sheet 558.0 Iron, cast 445.0 Iron, malleable 470.0 Iron, wrought 487.0 Lead, sheet 707.0 Steel: rolled, cast, copper bearing, silicon, nickel and stainless 490.0 Zinc 450.0
per foot as shown on the drawings or listed in the handbooks. The weights of plates will be computed on the basis of the nominal weight of the width and thickness as shown on the drawings, plus an estimated overrun computed as one -half of the "Permissible Variation in Thickness and Weight" as tabulated in AASHTO M 160. ii. The weights of castings will be computed from the di mensions shown on the approved shop drawings, deducting for open holes. To this weight will be added five percent (5%) allowance for fillets and overrun. Scale weights may be substituted for computed weights in the case of castings or of small complex pa rts for which accurate computations of weight would be difficult. iii. For members comprising both carbon steel and other special steel or material, when separate unit prices are provided for such members, the weight of each class of steel in each such member w ill be separately computed and paid for at the Contract unit price. iv. In computing pay weight on the basis of computed net weight, the following additional stipulations will apply:
The weight of all high -strength bolt heads, nuts, single washers and thread stick - throughs, both field and shop, will be included on the basis of Table 615.7.3.2.
TABLE 615.7.3.2 Nominal Diameter of High - Strength Bolt in Inches Weight Per 100 Units In Lb Bolt Head, Nut, One Washer and Stick -Through 1/2 22 1/8 33 3/4 55 7/8 84 1 120 1-1/8 169 1¼ 216
The weight of weld metal will be computed on the basis of the theoretical volume from dimensions of the welds.
457 615.8 -BASIS OF PAYMENT : The quantities, determined as provided above, will be paid for at the contract unit prices bid for the items listed below, which prices and payments shall be full compensation for furnishing all the material an d doing all the work herein prescribed in a workmanlike and acceptable manner including all labor, tools, equipment, supplies, falsework, painting, and incidentals necessary to complete the work.
615.9 -PAY ITEMS : ITEM DESCRIPTION UNIT 615001 -* Steel Superstructure Lump Sum 615002 -* Prefabricated Steel Bridge Superstructure Lump Sum 615003 -* Fabricated Structural Steel Lump Sum 615004 -* Fabricated Structural Steel Pound
* Sequence number
458 SECTION 616 STEEL BEARING PILING
616.1 -DESCRIPTION : This work shall consist of furnishing and driving steel bearing piles, of the kind and dimensions designated, to the required bearing or penetration in accordance with these Specifications and in reasonably close conformity with the lines and spacing shown on the Plans or established by the Engineer.
616.2 -MATERIALS : Materials shall conform to the requirements specified in the following subsections:
MATERIAL SUBSECTION Steel Bearing Piles and Splices * 709.12 Steel Pile Points 709.50
* The piling section shall be of the H form and with total flange width substantially equal to the depth of the section. No section shall have a thickness of metal less than 0.4 inches, nor a depth less than 8 inches.
CONSTRUCTION METHODS
616.3 -PREPARATION FOR DRIVING : Unless the Contractor demonstrates to the Engineer for site access reason, piles shall not be driven until required excavation or em bankment is completed. Pre -drilled boreholes shall be drill and backfilled with sand prior to placement of the pile and driving. Material forced up between the piles shall be removed to correct elevation, without cost to the Division, before concrete for the foundation is placed. Piling driven within seventy -five ( 75) feet of any privately owned structure, that is not being dismantled during the project, shall require pre -construction and post-construction survey to assure damages are not caused by the selected driving method.
616.4 -EQUIPMENT FOR DRIVING : 616.4.1 -General: When a diesel hammer is used for driving piles, both the fuel setting and stoke height of the hammer, shall be maintained at refusal to insure full energy of the driving blows a nd the target capacity as noted on the Plans is achieved. All hammers shall be in good working order, in the opinion on the Engineer, and be warmed up prior to refusing any pile. Before pile driving is started, the Contractor shall provide written certi fication to the Engineer of the pile hammer type(s) and rated energy, and that the hammer has been inspected and found to be in good working condition. In case the required penetration is not obtained using a hammer complying with the minimum requirements in subsection 616.4.2 the Contractor shall provide a heavier hammer or resort to predrilling at their own expense.
616.4.2 -Hammers for Steel Piles: Open and closed end diesel hammers are commonly required to drive steel piles. Vibratory hammers can be used to extract piles. Vibratory hammers shall not be used to set the piles to the tip elevations and target capacity, unless specified in the Plans. External combustion hammers shall not be used to set the piles to the