5-86
3.Inspect one hundred percent of all circumferential welds an d the full penetration sections of the longitudinal seam welds by radiographic examina tion (RT). Inspect one hundred percent of tube to plate welds: full penetration by RT, partial penetration and fillet by MT. Inspect twenty five percen t of the partial penetration s ections of the longitudinal seam welds (MT). Ultrasonic testing (UT) may be used on materi al ≥ (5/16 inch) thick and properly qualified UT may be used on thicknesses < 5/16 inch.
504.65 Method of Measurement Unless otherwise specified, struc tural steel will be
measured as one lump sum complete and accepted, consisting of a ll metal and related materials in the fabricated and erected structure as shown on t he Plans, excluding railings and drains. Related materials shall include, but not be limite d to, preformed pads placed under the bearings and, when required, self-lubricating bronze or copper-alloy bearing and expansion plates.
504.66 Basis of Payment Structural steel will be paid for at t he contract lump sum price
for the respective contract items. Payment will be made under: Pay Item Pay Unit
504.70 Structural steel fabricated and delivered, L u m p S u m
504.701 Structural steel fabricated and delivered, roll Lum p Sum 504.702 Structural steel fabricated and delivered, welded Lu mp Sum
504.71 Structural steel erection L u m p S u m
SECTION 505 - STUD WELDED SHEAR CONNECTORS, ANCHORS, & FASTENER S
505.01 Description This work consists of furnishing and instal ling steel stud welded
shear connectors, concrete anchors and threaded fasteners in ac cordance with the AASHTO/AWS D1.5 Bridge Welding Code (D1.5) and these Specificat ions.
505.02 Materials Materials shall meet the requirements of Sect ion 711.06 - Stud Shear
Connectors, Anchors, and Fasteners. The Contractor shall provi de the stud manufacturer’s certification that the studs meet the material requirements pri or to beginning welding.
505.03 Quality of Work The studs shall be free from rust, scal e, oil, and other
contaminants that would adversely affect the welding operation. Weld locations shall be free of scale, rust, oil and other dele terious material. The Contractor may clean the wel d locations by any method that resu lts in satisfactory welds.
Source: Maine Standard Specifications for Road and Bridge Construction, 2020 Edition. Pages 378–378 of 817.