Prestressed concrete piling

Details Prestressed concrete piling Prestressed concrete piling

1995-04-17

1996-04-23

Britts, Ramon S.

Hydraulic and earth engineering

Foundation

Columnar structure

249118, 249119, 425111, 425219, 425432, 404103, 404105, E02D 530, E02D 558

Patent

active

055097596

ABSTRACT:
A round , prestressed concrete pile having front and back flat portions and a method and apparatus for manufacturing the piles. The apparatus comprises essentially a plurality of horizontally placed piling molds and a concrete feeder and spreader. The concrete feeder and spreader are pulled across the pile molds by a spreader driver attached to a first end of the pile molds and the piles are removed from the pile molds by a cable tensioner and piling extractor attached to a second end of the pile molds. The piles are prestressed with flexible cable, wrapped with concertina wire, and embedded in concrete poured into the pile molds. The piles may be cast in different lengths by utilizing a bucket mold on the lower end.

REFERENCES:
patent: 1134653 (1915-04-01), Weed
patent: 1585421 (1926-05-01), Schneider
patent: 2445894 (1948-07-01), Troiel
patent: 2950660 (1960-08-01), Strandfuss
patent: 3685934 (1972-08-01), Huber et al.
patent: 3833706 (1974-09-01), Edwards
patent: 4194405 (1980-03-01), Reynolds
patent: 5035592 (1991-07-01), Lowndes, III et al.
Handbook of Concrete Engineering, 2nd Edition. Edited by Mark Fintel. 1985 by Van Nostrand Reinhold Co., Inc, pp. 314.

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