The Analysis and Design to Optimize Prestressed Concrete Bridge Girder Type I-Girder

Abstract

The technology of nowadays pre-stressed concrete is widely implemented in bridge0 structure design. According to the study, Precasted Concrete Girder has been used in bridge constructions due to its superior ability to support weight and bending strength than that of reinforced concrete with shorter construction time. Correspondingly, the construction of a bridge with a very long span would consider using prestressed concrete I girder. This research study on to design if precasted concrete Girder type I-Girder cross-sectional size according to Department of Highways standards, length 15 meters via the modification of cross-sectional dimensions with reduce the amount of prestressed concrete stranded but the structure can still support the working load and ultimate load safely. The study suggested that consider the ability of loading for the moving load of AASHTO HL-93 standard can also modifying the cross-sectional dimensions and reducing the amount of prestressed concrete stranded.