PGSuper
3.0
Precast-prestressed Girder Bridges
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Grit impregnated epoxy coated strands may be modeled. The recommendatons presented in "Guidelines for the use of Epoxy-Coated Strand", PCI Journal, July-August 1993 are used for transfer length and relaxation losses.
The recommended transfer length is 50db.
Relaxation of epoxy coated strands is taken to be double that of uncoated strands.