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FP-96 English Version - Eastern Federal Lands Highway Division

FP-96 English Version - Eastern Federal Lands Highway Division

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Section 603Torque steel bolts and aluminum bolts on 0.125-inch thick and heavier aluminumplates to a minimum of 115 foot-pounds and a maximum of 135foot-pounds.For long-span structures:(a) Tighten the longitudinal seams when the plates are assembled unless theplates are held in shape by cables, struts, or backfill. Properly align platescircumferentially to avoid permanent distortion from the design shape.Before backfilling, do not exceed 2 percent variation from the design shape.(b) Do not distort the shape of the structure by operating equipment over ornear it.(c) Provide suitable survey control on the structure to check structure movement.(d) Check and control the deflection movements of the structure during theentire backfilling operation. Do not exceed the manufacturer's recommendedlimits.(e) Provide a manufacturer's representative to monitor the erecting and backfillingof the structure.603.05 Acceptance. Material for structural plate structures will be evaluatedunder Subsections 106.02 and 106.03.Installation of structural plate structures will be evaluated under Subsections106.02 and 106.04.Excavation and backfill will be evaluated under Section 209.Measurement603.06 Measure structural plate pipes, pipe arches, boxes, and underpasses bythe linear foot along the invert.Measure structural plate arches by the linear foot along the average of thespringline lengths.529

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