| 英文摘要 |
The rising number of natural disasters has been a major threat to worldwide infrastructures. Civil engineers nowadays have to enhance the mitigation of hazards by increasing the service period of structures. The application of life-cycle of structures is a novel idea that was invented to assist engineers in planning, designing, building, and comprehensively maintaining a longer service life for structures. In this study, a life-cycle based bridge management system for disaster prevention is developed to improve the efficiency and the quality of bridge inspection work, evaluate the capacity of bridge disaster resilience and to ameliorate the accuracy of bridge information. The proposed system consists of distinguishing the evaluation functions for bridge resistance to earthquakes, floods, service loads, and deteriorations. This is achieved by collecting field inspection data and taking the planning and design information of existing bridges into consideration. The time-variant curves of the structural resistance of bridges to hazards during service time were built by applying expert system technologies to construct evaluation algorithms for bridge management, accompanied by strategies for the prevention of disasters. Moreover, modular aid tools and the mobile portable system were also developed and tailored to field inspection works. Effective strategies and practical methods were studied in this paper as well. The proposed system provides the functions to successfully evaluate the trend of changes in structural resistance required by the bridge authorities and engineers for bridge management and disaster prevention. The next and most important stage of this work is to put the system into use; the results from such implementation can provide practical feedback to further improve the system. |
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