3231.1SCOPE
Provide galvanized corrugated steel (CS) structural plate and fasteners for use in constructing pipe, pipe-arches, underpasses, and special shapes for field assembly.
3231.2REQUIREMENTS
Provide structural plates and fasteners meeting the requirements of AASHTO M 167 Standard Specification for Structural Plate for Pipe, Pipe-Arches, and Arches, and the following:
A Fabrication Provide the plate thickness specified in AASHTO M 167, Table 8, unless otherwise specified on the Plans. Provide steel plate with the section modulus shown on the Plans. A different thickness and section modulus is acceptable if the strength is at least equal to the strength of the thickness and section modulus shown on the Plans. Provide plates of a size and shape that yield a finished structure of the dimensions shown on the Plans. Stagger either the longitudinal or the transverse seams. Punch bolt holes before galvanizing the sheets. B Workmanship and Finish The Engineer will reject individual plates or shipments of plates with any of the following defects:
3231.3SAMPLING AND TESTING ................................................................................................... 3226.3
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