Development of Structural Design System friendly to Environments Using Artificial Life Technology

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In this study, some researches were made on the definition of eco-design of structures. In order to develop a practical design system for eco-structures, advanced technologies such as so called "soft computing", i.e., chaos, neural network, genetic algorithm, artificial life, fractal theories were studied and attempted to combine them so as to obtain a more useful method.This year, the following topics were investigated to establish a basic concept and method of realizing eco-structural design :1 A drawing system was developed. Allocating several categorical parts in the 2-dimensional space, a useful drawing system was realized. As an example, A prototype system for drawing bridge structures was developed, which can use CG library.2 A system that can creates 3-dimensional data using 2-dimensional data was developed. Especially, the system employed digital photo systems for the creation of 3-dimensional data.3 Standardized data system was studied for common use of various data, where data exchange base and information protocol were quite important.4 To establish a design system for eco-structures, CALS technology was useful. As a basic technology, a translator between STEP/AP203 and VRML information was developed.