在橋梁生命週期中之維護階段，主要是以維護橋梁結構安全及其要求的服務水準之前提下，對於橋梁進行定期或不定期之檢驗，並對橋梁做必要之修護、整建或重建。以橋梁系統之整體管理效率而言，目視檢測仍為進行橋梁檢測工作較符合經濟性且具可行性之方式，並可將其視為欲作更精密檢測前對橋梁狀況之初步評估與篩選動作。但在橋梁目視檢測作業中，由於檢測員專業知識良莠不齊，對相同的劣化情形其評估結果亦有所不同。而橋梁維護作業須依橋梁檢測評估結果進行橋梁維護經費之排序，於此情形下自會產生維護經費分配不公的情況。 本研究首先了解國內目前橋梁目視檢測作業需求，並根據國內外相關研究建立一知識庫專家系統，以作為目視檢測作業之輔助工具。本研究中依目視檢測作業所需及D.E.R.評估方法規劃系統功能為三階段：(1)建立橋梁檢測項目、(2)執行檢測作業、以及(3)輸出結果。本研究建構之系統對於目前國內目視檢測作業之執行，可藉由知識庫專家系統具有轉移專家知識之特性，而降低執行檢測作業專業性之需求；並可將評估過程內隱化，減少由於主觀因素產生之人為差異，以提高檢測評估結果之正確性；系統最後並建議維護措施及進行維修估算，以提供橋梁管理單位對於受檢測橋梁之後續維護建議。 The major objective of bridge maintenance lies in maintaining structural security and serviceability of the bridge during its life cycle. One of the maintenance tasks is inspection of the bridge in order to assess its condition. Inspection via sight is one of the economical means to perform the assessment task. However, such inspection may have various results due to various knowledge, training, and experiences of the inspectors. The various inspection results may then produce distribution of maintenance budgets on a wrongful basis. This research focuses on developing a knowledge-based expert system that assists in performing inspection of bridges via sight. The knowledge base is built based on an evaluation methodology called D.E.R. and knowledge from experts who use the methodology for inspection. The developed system performs three major tasks: (1) generating inspection bridge items based on the user input bridge information; (2) generating inspection results of the items; and (3) printing the results. The system assists an inspector in such a way that errors and biases are reduced to a minimum level. The system also suggests maintenance actions and estimates maintenance costs that are helpful to the administration personnel.
