Abstract
In order to make effective use of various techniques in the planning and design of a bilding, it is necessary to classify these techniques systematically on the basis of principle. There are two fundamental kinds of principles in such a systematic classification : (1) principles derived from the building construction system itself ; (2) principles derived from the idea of meeting the demands of building. This study is undertaken from the latter perspective. The aim of this study is to indicate systematic classification procedures for methods used to control active factors. It is the summation of all our past research on the control of such active factors. A systematic classification of active factors is necessary in order to isolate phenomena that are control targets. In this study, we have classified active factors into 27 types, on the basis of a classificatory concept for active factors developed in the course of past research. We have focused our research up to now on 59 types of active-factor-behavior phenomena and 17 types of building-property-modifying phenomena. We considered the promotion and the restraint of such phenomena a necessary requirement in any building. Control methods are classified systematically according to governing principles and level. We can derive principles of control if we match physical and chemical conditions, which arise due to various phenomena, with the actual structural properties of a building. On the basis of past research, we have roughly classified structural levels into (1) building areas, (2) buildings, (3) building parts, (4) furniture, (5) fittings and equipment, and (6) occupants. Based on the foregoing, we have classified practical control methods with their above-mentioned principles.
