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What type of tensioning is required on the bolt replacements?

April 26, 2017bolt replacements tensioning type

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What type of tensioning is required on the bolt replacements?

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All bolted connections are ASTM A325, 7/8 inch diameter high strength bolts, nuts, and washers, mechanically zinc coated in accordance with AASHTO M298, for Class 50. Install all high strength bolted field connections using “direct tension indicators” (DTI’s) in accordance with the Standard Specifications and ASTM F959. Ensure all DTI’s are mechanically zinc coated. Place DTI’s under the bolt head.