Identification of Prestress Force in Prestressed Concrete Box Girder Bridges Using Vibration Based Techniques

This research was aimed to develop a new vibration based non-destructive method to identify the effective prestress force in prestressed concrete box girder bridges. The research study included theoretical development, finite element analysis and laboratory testing of a scaled down box girder bridge model. A new approaches for vibration analysis of box girder bridge decks and prestress force identification were developed and tested successfully