ABSTRACT
In this paper, a unit cost model and an information model based on ISO/STEP standard are proposed for the life-cycle cost data management of cable-stayed bridge in order to collect and provide high-quality and quantitative cost data and to bridge the data gaps for the interoperability. The proposed unit cost model gives each cost element a dollar value which could be deterministic, probabilistic, or fuzzy. The international standard based information model serves as the basic data type for the integrated management and interoperable operation. Finally, the applicability and efficiency of the proposed method is illustrated by applying to Seohae Grand Cable-Stayed Bridge.
