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Pattern: Perimeter continuity

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Part of a 5-fold Pattern Language.
Subsequently published in Encyclopedia of World Problems and Human Potential (1986)

Pattern template

Each new level in a framework, developed by extension of a pattern of inter-level connections, is defined and given form by connecting these together to form a continuous perimeter ring. This helps to resist distortion resulting from the new level partly by redistributing forces from that level to maintain the overall structural integrity.

Physical If a room is conceived and built by first placing columns at the corners, and then gradually weaving the walls and ceiling around them, the room needs a perimeter beam around its upper edge. This resists the horizontal thrust of the vault above, spreading the loads from upper stories onto columns, tying the columns together, and functioning as a lintel over openings in the wall.

Broader Inter-level connections; Progressive framework definition; Harmonizing space distribution between levels; Efficient enclosure of spaces with minimal structural distinctions; Primary inter-level connections at transitions in boundary orientation.

Narrower Inter-level zone; Inter-level integrity; Aperture compatibility; Tolerance at level interfaces; Level generation of minimum tension; Overview sites from integrative superstructure.

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