Conceptual Modeling for Design Formulation

A design methodology is developed for the preliminary stage of building design. The methodology applies a theory of conceptual structure to model building design processes and incorporates the top-down approach of design decisions from a total system point of view. This design approach accounts for the uncertainties in the structural design processes and information, and provides a vehicle for formulating complex engineering decisions. The computing aspects of the design processes are categorised as arithmetic and reasoning formulations for capturing design information. The computing formulations are represented and manipulated, in the present study, using fuzzy logic, and their applications are illustrated with examples of building component design. The research results enable the implementation of a computer-aided tool for structural engineers to enhance their design decisions.