Knowledge Representation for Bridge Designby James G. Welch, Duke Univ, Durham, United States,
Mrinmay Biswas, Duke Univ, Durham, United States,
Abstract: An implementation of a frame-based knowledge representation language (KRL) for development of expert system applications in highway bridge design is presented. The frame-based KRL is used to represent two types of knowledge. Namely, knowledge that models the physical bridge structure, and knowledge that operates on the physical model (i.e. design and analysis knowledge). The physical bridge structure model is visualized as a hierarchy of structural subsystems. Structural sub-systems in the hierarchy are described by a set of design variables. The design and analysis knowledge is represented in the form of algorithms, constraints, facts, rules, and tasks. The frame-based KRL approach is ideally suited for representing both types of knowledge. The frame-based KRL approach results in an effective, comprehensible, and accessible knowledge representation.
Subject Headings: Bridge design | Highway bridges | Highway and road design | Frames | Physical models | Structural models | Expert systems | Bridge tests
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