Model dan Pendekatan Fuzzy LogicUntuk Program Pemeliharaan Jembatan Beton

Evaluation of the existing condition of the bridge is the most important part of the bridge maintenance program and is still often depend to a very large degree on the experience, judgment and bridge engineers flexibility, so that resulted to a serious problem due to the nature of subjectivity of assessment. In the process of decision making to determine the type of repairs needed for concrete bridges, one of the key parameter is the condition rating. The reliability of these parameters depends on the reliability and accuracy of information provided bybridge inspectors, who are often influenced imprecision and opinions (biased) personal. Therefore it is necessary to provide a systematic procedure to reduce this weakness. Fuzzy logic provides a natural way to deal with problems that do not have a source of precision in the absence of sharply defined criteria of a class (class) set membership. The set itself is a class of fuzzy objects with membership that has a continuum of gradations (continuum of grades of membership). In the process of bridge inspection, inspectors often must assess the level of severity (severity) of a visual defect with "severe" or "not severe". On the set of non-fuzzy space inspectors is only one response among the above conditions, if the answer is not "severe", yes of course "not severe " is the answer. But in the fuzzy space possible for inspectors to quantify the level of significance between "severe" to "not severe" with a numerical value (numerical rating). Expert System is a system that tries to provide answers to the problem, or clarify the uncertainty which is usually one or more human experts would need to consult. Compared to traditional programming techniques, expert-system approaches provide the added flexibility (and hence easier modifiability) that arises from the ability to model rules as data rather than as code. The resulting software can be a cost - time-effective rapid information for technical evaluation jembatatan maintenance of reinforced concrete. Simultaneously, this software can give recommendations and / or second opinion to support the executive decisions jembatatan maintenance of reinforced concrete.