Process for the production of a bridge girder sectional cantilev

Details Process for the production of a bridge girder sectional cantilev Process for the production of a bridge girder sectional cantilev

1973-09-27

1978-02-14

Ridgill, Jr., James L.

Static structures (e.g., buildings)

Processes

Anchor, bond, etc.

52747, E04G 2114

Patent

active

040731154

ABSTRACT:
There is disclosed a process for the production of a bridge girder system of prestressed concrete in sectional cantilever construction in which prefabricated sections comprising the whole superstructure cross-section formed as hollow boxes, are drawn tightly together in the longitudinal direction of the bridge to form a monolithically acting girder system, the process comprising the steps of arranging a plurality of bridge sections in succession in the longitudinal direction of the bridge, assembling said sections to form a set, said set of sections having been simultaneously prefabricated while separating the surfaces which are to be turned toward one another (in the subsequent incorporation of the individual sections in the bridge structure) by steel sheets, and then moving the sections into position individually so that they are held solely by means of the frictional connection produced by the prestressing between their contacting surfaces.
There is also disclosed apparatus for carrying out a process in accordance with the invention.

REFERENCES:
patent: 942092 (1909-12-01), May
patent: 2751776 (1956-06-01), Streblow et al.
patent: 2963764 (1960-12-01), Finsterwalder
patent: 3022759 (1962-02-01), McCall
patent: 3084481 (1963-04-01), Silberkuhl et al.
patent: 3283457 (1966-11-01), Hart
patent: 3367074 (1968-02-01), Vanich
patent: 3570207 (1971-03-01), Launay
patent: 3788023 (1974-01-01), Macchi
patent: 3794433 (1974-02-01), Schupack

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