완전한 구조물 계측을 위한 새로운 도구

The large amounts of capital invested in bridge construction, combined with ever-increasing design life requirements and the use of high-technology construction methods, has highlighted the need for comprehensive structural monitoring and management techniques to ensure that deterioration can be identified early and corrected before large-scale repairs are required. Structural patrimony represent very large investment, and the management of such patrimony over long periods becomes a crucial issue. Owners & concessionaires are facing new problems and need to mitigate the cost of maintenance of their infrastructures. Two key technologies have recently been developed which allow to follow globally a structure and to assist in fulfilling these requirements. Major owners have selected such technologies, this paper is developing recent applications ScanPrint®, a computerized structural management system which features a portable graphical user interface and a complete structural pathology data base, is being used to generate comprehensive records of structural inspections throughout the life of the structure. SoundPrint®, a continuous remote structural monitoring system, is applied to detect and locate failure of tensioned elements in cable-stayed, suspension and prestressed structures. In both cases, powerful expert systems including full knowledge database are used to provide useful management information to the bridge operator or owner. This paper describes the development and application of these technologies and presents case studies that emphasize the value of this proactive approach to bridge management.