614001 -* “size” Steel Pile Linear Foot

436 SECTION 615 STEEL STRUCTURES 615.1 -GENERAL : 615.1.1 -Description: The work shall consist of furnishing, fabricating, and erecting steel structures and structural steel portions of other structures in accordance with these Specifications, the Special Provisions, and the details shown on the plans. Fabricators of bridg es that have welded shop splices shall be certified under the American Institute of Steel Construction’s (AISC) Quality Certification Program “Major Steel Bridges” category. The fabricators of fracture critical members shall be certified as category: “Maj or Steel Bridges” and, in addition, shall possess an “F” endorsement by AISC. Fabrication of grades HPS 50W and HPS 70W steel shall only be performed by fabricators possessing an “F” endorsement. Fabricators of rolled beam bridges shall be certified by A ISC in either the “Major Steel Bridges” category or the “Simple Steel Bridges” category. Ancillary bridge components such as expansion dams, drains, scuppers, and pedestrian handrail may be fabricated in shops that are AISC certified as “Bridge and Highwa y Metal Component Manufacturers.” The fabricator shall provide a quality control plan to the Engineer for approval. This plan shall contain information concerning the fabricator's internal control process. Information concerning the contents of the quality control plan can be found in the FHWA Region Three, Structural Committee for Economic Fabrication's Guidelines for the Development of a Quality Control Plan. The plan shall be approved by the Division prior to the start of fabrication. Structur al components designated on the plans or in the special provisions as “fracture critical” shall conform to the provisions of Section 12 of the ANSI/AASHTO/AWS Bridge Welding Code D1.5. Painting shall conform to the provisions of Section 688. 615.1.2 -Notice of Beginning of Work: The Contractor shall give the Engineer a minimum of two weeks notice prior to the beginning of work at the fabrication shop, so that inspection may be provided. No material shall be manufactured, or work done in the shop, befo re the Engineer has been so notified. Prior to beginning work, Engineer and Contractor representatives shall identify individuals who are responsible for the following functions: preparation, submittal, review, approval, and distribution of shop drawings ; submittal and control of material test reports (MTRs). The Engineer will identify individuals or agents responsible for handling shop detail drawings, approving welding procedures, providing quality assurance, and accepting proposed repairs. Before wor k begins a prefabrication meeting may be held at the discretion of the Engineer or if requested by the Fabricator or Contractor. 615.1.3 -Inspection: Structural steel shall be inspected in the fabrication shop. The Contractor shall furnish the Engine er with a copy of all mill orders and shop lists showing heat numbers to be used for each piece. Mill test reports that document the chemical analysis and physical test results for each heat of steel to be used in the work shall also be furnished. Final approval of the material in the shop will not be given until the above data is approved. With the approval of the Engineer, certificates of compliance shall be furnished in lieu of mill test reports for material that normally is not supplied with mill te st reports, and for items 437 such as fills, minor gusset plates and similar material when quantities are small and the material is taken from stock. Certified mill test reports for steels with specified minimum impact values shall include, in addition to ot her test results, the results of Charpy V -Notch impact tests. When fine grain practice is specified, the test report shall confirm that the material was so produced. Copies of mill orders shall be furnished at the time orders are placed with the manufact urer. Certified mill test reports and Certificates of Compliance shall be furnished prior to the start of fabrication of material covered by these reports. The Certificate of Compliance shall be signed by the manufacturer and shall certify that the mater ial is in conformance with the specifications to which it has been manufactured. Material to be used shall be made available to the Engineer so that each piece can be examined. The Engineer shall have free access at all times to any portion of the fabri cation shop where the material is stored or where work on the material is being performed. 615.1.4 -Inspector's Authority: The Inspector shall have the authority to reject materials or workmanship which do not fulfill the requirements of these Specifications. In cases of dispute, the Contractor may appeal to the Engineer, whose decision shall be final. Inspection at the s hop is intended as a means of facilitating the work and avoiding error, and it is expressly understood that it will not relieve the Contractor of any responsibility in regard to defective material or workmanship and the necessity for replacing same. The acceptance of any material or finished members by the Inspector shall not be a bar to their subsequent rejection, if found defective. Rejected materials and workmanship shall be replaced as soon as practical or corrected by the Contractor. 615.2 -WORKING DRAWINGS : Working drawings must be submitted in accordance with section 105.2. 615.2.1 -Erection Drawings: The contractor shall submit drawings illustrating fully their proposed method of erection. The drawings shall show details of all falsework bents, bracings, guys, dead -men, lifting devices, and attachments to the bridge members: sequence of erection, location of cranes and barges, crane capacities, location of all lifting points on the bridge members, and weights of the members. The plans and drawings shall be complete in detail for all anticipated phases and conditions during erection. Design calcula tions, sealed by a West Virginia Registered Professional Engineer, shall be submitted by the Contractor to the Engineer seven days prior to commencing work. Receipt of plans, drawings and calculations does not constitute review or approval or relieve the contractor of their responsibility to satisfactorily design the erection plan. The design calculations shall demonstrate that allowable stresses for falsework and steel members being erected are not exceeded and that member capacities and final geometry s hall be correct. When the designated concrete deck overhang exceeds thirty ( 30) inches from the edge of the beam flange, the erection drawings submitted by the Contractor/fabricator shall include complete details of the forming and bracing for the over hang and shall transmit the concrete dead load to an area of the beam or stringer which will prevent distortion. 615.2. 2-Camber Diagram: A camber diagram shall be furnished to the Engineer by the Fabricator, showing the camber at each panel point in th e cases of trusses or arch ribs, and at the location of field splices and fractions of span length (¼ points minimum) in the cases of 438 continuous beam and girders or rigid frames. The camber diagram shall show calculated cambers to be used in preassembly o f the structure in accordance with Section 615.5.3. 615.3 -MATERIALS : 615.3.1 -Structural Steel : 615.3.1.1 -Quality: Steel shall be furnished according to the following specifications. The grade or grades of steel to be furnished shall be as shown on the plans or as specified. Material meeting equivalent AASHTO and ASTM specifications may be supplied under either spe cification. All steel for use in main load -carrying member components subject to tensile stress, including splice plates, shall conform to Zone 2 Charpy V -Notch Impact Test requirements of AASHTO M 270. 615.3.1.2 -Certifications and verification: Fabric ators of structural steel shall provide certified mill test reports (MTRs) for all steel materials used in fabrication. MTRs must originate from the producer of the material and not a supplier. 615.3.1.3 -High Performance Steel: Structural Steel designated on the plans as grades HPS 50W and HPS 70W shall conform to the requirements of AASHTO M 270. All fabrication for grades HPS 50W and HPS 70W must conform to the current edition of the AASHTO/AWS D1.5 2008 Bridge Welding Code and by the latest edition of the AASHTO Guide Specification for Highway Bridge Fabrication with HPS 70W Steel. Only submerged arc welding ( SAW) and shielded metal arc welding (SMAW) are permitted when welding grade HPS 70W steel. 615.3.1.4 -Non-Destructi ve Testing (NDT): All NDT shall be performed in accordance with the AASHTO/AWS D1.5 2008 Bridge Welding Code. Whenever magnetic particle testing (MT) is performed only the yoke technique will be allowed, as described in section 6.7.6.2 of AWS D1.5, modif ied to test using alternating current only. 615.3.1.5 -Weld procedure qualification: The procedure qualification test record (PQR) and proposed welding procedure specification (WPS) must be submitted to the Engineer for review and approval prior to the s tart of fabrication. In general, post weld heat treatment shall not be required. If proposed by the Contractor for production or repair welding, such post weld heat treatment must be included in the procedure qualification testing, or qualified by additi onal PQR’s, as appropriate. 615.3.2 -High -Strength Fasteners: Bolts, nuts, and washers shall conform to Section