Principles and solutions of the new system building technology (TAT)

The TAT-building system is aimed to work as a basis in the development of new generation of industrialised building technology in Finland. Original title "TAT" means the product development of apartment and office buildings. As English title "TAT" could be understood as "Totally Adaptable Technology". The TAT building production is based on assembly techniques. Realisation is based on the following targets: - Increase in the freedom of design and quality/cost management with the new modulated special and structural principle and the flexible dimensioning system. - Industrialised and mechanised manufacture of components with the possibility for automation and robotisation. - Compatibility of technical systems as various functional alternatives. - Easy assembly and installation of components on site. - Optimisation and management of the design and production process. The building system is defined as a hierarchical, modulated system containing functional and spacial systems, a structural system, systems for ventilation, water supply, electricity, information technology and waste management as well as the connecting dimensioning and tolerance systems. There are five hierarchical levels in the system: levels of building, subbuilding, module, component and basic element. Guidelines for design, production, service, and product and method development are defined. The system provides designers with a common set of concepts, a dimensioning system, realisation principles for the technical systems, selection of component types, design instructions, and model plans. Solutions at the highest hierarchical levels of the modulated system are free and open to creative design. Module and component types are mainly modified products manufactured with flexible production methods. The introduction into use can be divided into three main phases: 1 . Realisation with the present products and techniques. 2. Realisation by means of immediate product development and rapid organisational changes. 3. Realisation by utilising the entire development potential of the system as well as new manufacturing techniques and new products by means of the parallel assembly production. Entry into the final stage will take place roughly within the next decade.