Abstract
From the results of the safety construction management carried out to steel arch bridges, the new erection design method based on fail safe concepts and the monitoring system to observe factors having influence on bridge behavior and conditions for safety were confirmed possible to be indispensable elements of technology in order to perform the safety construction management, but, they were not still shown to be rational and effective. Therefore, in this paper, through the application of risk-based engineering to the steel bridge constructions, the concepts and procedures of fail-safe design and monitoring were arranged, and it was examined whichever they were more rational and so on. As a result, the risk-based construction and management was verified to insure safety under erection and to be no problem in practical use.
