I am doing a load rating on a bridge built built in 1970 with post-tensioned tee section girders. Take a look at the attached as-builts. The tendon types are marked 26GSP, 25GSP, and 24GSP. Does anyone know what these mean? I want to know the strands area and ultimate stress so I can verify the forces shown on the sheet and know what is included in the stress losses.
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