Development of bridge management system using three-dimensional models

Abstract

It is necessary to manage various data in order for maintaining bridge structures appropriately. However, in the drawing that has recorded condi-tions and repairs on the bridge structures up to now, the following prob-lems exist. The first problem is that the extend elevations in the drawing is only a schematic illustration without dimensions. The second is that the drawing is not shared in both repair and inspection. The third is that the drawing management cannot be performed in chronological order. Therefore, the authors developed three-dimensional bridge models such as girder structure (single T girder, single I girder, box girder and single plate girder etc.), ramen viaduct and substructure (abutment, pier etc.). Al-so, those can easily make the 2D drawings (extended elevations) for man-agement of the inspections and repairs. And the authors added a function that can manage the cycle of maintenance cycle such as plan, inspection and repair. And the authors added a function that can manage the cycle of maintenance cycle such as plan, inspection and repair. The validity of this system was confirmed by comparing with the conventional method.