Kit-of-parts
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Kit-of-parts Theory refers to the study and application of object-oriented building techniques, where building components are pre-designed / pre-engineered / pre-fabricated for inclusion in joint-based (linear element), panel-based (planar element), module-based (solid element), and deployable (time element) construction systems (Howe 2003). Kit-of-parts construction is a special subset of pre-fabrication that not only attempts to achieve flexibility in assembly and efficiency in manufacture, but also by definition requires a capacity for demountability, disassembly, and reuse. In layman terms, kit-of-parts structures can be assembled and taken apart in a variety of ways like a construction toy.
Kit-of-parts architecture involves organizing the millions of individual parts and raw material in a building into assemblies of standard easy-to-manufacture components, sized for convenient handling or according to shipping constraints. The construction of the building is carried out on the assembly level as opposed to the raw material level. The architect defines a parts library describing every major assembly in the building. The assemblies are conceived in a systematic way, based on certain rules such as increment, size, or by shape grammar. Standard, simple connections between the assemblies are carefully defined, so the number of possible shapes and appearance the parts can take is limitless.
Kit-of-parts philosophy goes hand in hand with advanced manufacturing, automation, and computer and information technologies. Handling multiple identical components as instances of a master element is an efficient use of the computer in the planning stage, and use of standard components can take advantage of mass-production and mass-customization manufacturing technologies (Howe, Ishii, Yoshida 1999).
Some engineering fields refer to kit-of-parts using the acronym MESR, which stands for the following:
• Modular – Systems and subsystems are designed such that discrete unit processes can be replaced with upgraded / enhanced technology as it becomes available.
• Extensible – Initial components and subsystems delivered with a structure or vehicle are not discarded or replaced as additional unit processes are added during subsequent stages of development.
• Scalable – Components and subsystems can be coupled / decoupled as required to accommodate specific design loads.
• Reconfigurable – Components and subsystems can be moved between locations and / or subsystems to perform a similar or identical function.
[edit] References
- A.S. Howe; I. Ishii; T. Yoshida (1999). Kit-of-parts: A review of object-oriented construction techniques. Proceedings of the International Symposium on Automation and Robotics in Construction (ISARC16). 22-24 September 1999, Madrid, Spain. London: International Association for Automation and Robotics in Construction (IAARC).
- A.S. Howe (2003). Design Principles for Kinematic Architecture. Proceedings of the Second International Conference on Construction in the 21st Century (CITC-II). 10-12 December 2003, Hong Kong.
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