Static structures (e.g. – buildings) – Compound curve structure – Geodesic shape
Patent
1994-08-05
1999-01-12
Friedman, Carl D.
Static structures (e.g., buildings)
Compound curve structure
Geodesic shape
52 6, 52 801, E04B 710
Patent
active
058572945
ABSTRACT:
A structural system that can be used to cover an underlying area exactly or approximately defined by a circle, an ellipse, a superellipse, a triangle, a rectangle, a regular polygon, an irregular polygon, or any closed boundary line. When viewed in plan, the roof structure substantially matches the boundary of the underlying area. The roof structure is made of sets of evenly or unevenly spaced arched parallel trusses which, at their lower ends, are supported by a compression ring that substantially matches the perimeters of the underlying area, and at their high end intersect one of a set of arched collector trusses. When viewed in plan, each parallel truss is parallel to one of a set of generator lines, defined as those lines running from a central point in the projected area of the roof structure to the vertices of a regular or irregular circumscribing polygon that approximates the projected roof area. The collector trusses are located in plan, on the lines that bisect the angles formed by adjacent generator lines. A series of hoop-like tension members which are similar to the geometry of the compression ring, are located at different heights. Substantially vertical compression members are located in plan at the intersection points of the centerlines of the set of hoop-like tension members. The roof structure can be provided with retractable membrane panels, to expose the underlying area to light and air, as desired.
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Friedman Carl D.
Horton-Richardson Yvonne
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