| 英文摘要 |
In the past few decades, increasing attention has been paid to achieving longevity of infrastructure. The long-term environmental factors such as chloride invasion and carbonation penetration that are detrimental to concrete cause reinforcement corrosion and shorten the service time of bridge structures, resulting in a gradual deterioration of their structural performance. Our previous study showed the relationship between structural performance and service time and provided a prediction of the time point for the maintenance or retrofit of structures that perform below the threshold values. In this study, we present a novel lifecycle-based bridge management system(BMS) with an extendable structure which uses a novel technology known as “metadata”. Metadata enables the integration of all bridge inspection records and evaluation results in photos captured onsite. In other words, by superimposing data layers, a single photo capable of storing complete information related to bridge status could be created. Therefore, different photos taken at different time points constitute a resume of the bridge status. Accordingly, we can record and qualitatively and quantitatively evaluate the time history of the bridge status by considering material deterioration. Hence, the lifecycle-based BMS can effectively facilitate the data mining of inspection and evaluation and help in simplifying the decision making for maintenance efforts, to address the long-term problem of the deterioration of bridges. The proposed system is expected to be helpful for earthquake mitigation strategies in the future. |
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