Concrete structural member splicing device

Details Concrete structural member splicing device Concrete structural member splicing device

1989-02-16

1990-02-13

Reese, Randolph A.

Hydraulic and earth engineering

Foundation

Columnar structure

403294, 403314, 403369, 52223L, 405256, E02D 510

Patent

active

049001930

ABSTRACT:
A splicing device for concrete structural members includes two mating connectors positioned in axial alignment adjacent to each other that are interlocked by a key inserted through a keyway provided in the sidewalls of the connectors. Prestressing strands in the structural members to be spliced are fastened to the connectors by inserting them into axial holes located in the ends opposite the mating ends of the connectors, and thereafter wedging the strands within frustum-shaped cavities forming part of the holes, by means of frustum-shaped segments, or feathers, forced against the elements within the cavities. Apparatus and a method for installing the splicing device is also described.

REFERENCES:
patent: 3104532 (1963-09-01), Severinsson
patent: 3356398 (1967-12-01), Nilsson et al.
patent: 3422630 (1969-01-01), Marier
patent: 3545214 (1970-12-01), Grazel
patent: 3650553 (1972-03-01), Wennstrom
patent: 3901042 (1975-08-01), Wahman
patent: 3930373 (1976-01-01), Wahman
patent: 4009550 (1977-03-01), Young
patent: 4314777 (1982-02-01), Henderson
patent: 4604003 (1986-08-01), Francoeur et al.
patent: 4673309 (1987-06-01), Schlaich et al.
"Splicing Concrete Piles", (Dyn.a.splice) San Jose, Calif.
"Hardrive" (Splice for Precast Concrete Piles) Franklin Lakes, N.J.
"Get it together with Sure-Lock Pile-Splice" (DFP Dougherty Foundation Productions, Inc.) Franklin Lakes, N.J.

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