Abstract
The authors claim that to represent the knowledge for planning is necessary to implement a computer aided planning system for structural design. The authors regard the planning process as the process of selecting action that modifies the sate of affairs to the desirable state for the designer, and intend to propose a representation schema of the planning knowledge use in structural design. The proposed schema is composed of deduction based on theoretical knowledge, heuristics, abduction based on theoretical knowledge and practical reasoning employing knowledge about action. With the proposed schema, examples of the structural design planning for the seismic retrofit is represented formally. The authors may conclude that the schema is valid for representing planning knowledge on structural design.
