Segmental and Conventional Precast Prestressed Concrete I-Bridge Girders

Abstract

Conventional precast I-girder bridge systems are widely used in North America for short and medium spans, up to 45 m. Spliced standard precast I-girder segments made continuous by longitudinal posttensioning have been used for spans of up to 75 m, making them far more competitive with the steel plate girder and concrete box girder alternatives. The span and/or girder spacing capabilities of the standard I-sections of Nebraska University, Florida, American Association of State Highway and Transportation Officials-Precast/Prestressed Concrete Institute (AASHTO-PCI), and Canadian Prestressed Concrete Institute (