Static structures (e.g. – buildings) – Processes – Assembling exposed modules
Patent
1977-11-03
1980-02-12
Leppink, James A.
Static structures (e.g., buildings)
Processes
Assembling exposed modules
52224, 52228, E04C 320
Patent
active
041876601
ABSTRACT:
A method for erecting a large, thin-shell cooling tower. Upon a foundation a series of angularly-extending columns is erected, and the columns are joined at their upper ends by a lower ring. Then a ribbed, waffle-like reinforced concrete wall is constructed to extend up from the lower ring and to provide a shell with a shape such as a hyperbolic paraboloid. The ribbed outer (or inner) surface strengthens the structure while enabling the thickness of the portions in between the ribs to be relatively thin. A series of vertically-spaced horizontal circumferential reinforcing bars or post-tensioning cables and a series of horizontally-spaced vertical or inclined bars or cables, are included in the wall. The wall is preferably made up from a series of precast units that are of novel structure in themselves. At the top of the wall is an upper ring joining the various elements together.
REFERENCES:
patent: 3300942 (1967-01-01), Horstman
Lin Tung-Yen
Yang Yue-Chyou
Leppink James A.
Raduazo Henry E.
T. Y. Lin International
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