Apparatus for building a concrete bridge superstructure

Details Apparatus for building a concrete bridge superstructure Apparatus for building a concrete bridge superstructure

1976-10-01

1978-05-02

Husar, Francis S.

Plastic article or earthenware shaping or treating: apparatus

Building forms or construction engineering type mold with...

14 1, 249 20, 264 33, E01D 100

Patent

active

040872203

ABSTRACT:
An apparatus for the sequential production of concrete sections of a superstructure spanning a plurality of piers comprises a main girder positioned above a respective one of the piers and advanceable from pier to pier. A concrete form is carried by the girder for producing portions of each superstructure section, the concrete forms being movable along the girder. The main girder is supported on previously completed portions of the superstructure and can be advanced thereon by means of an auxiliary support in the center of the girder, two main supports positionable rearwardly of the auxiliary support and a third main support positionable forwardly of the auxiliary support. The main supports are in thrust and stress force bearing connection with the main girder and the main supports are movable along the girder in the longitudinal direction. The main supports may be retracted and lowered for vertically moving the main girder together with the concrete form carried thereby and any concrete therein. A portion above a pier is produced by mounting a support structure on the front main support after the same has been aligned with the pier, connecting the support structure to the pier so that the girder is supported on the three main supports and then forming the portion in the concrete form.

REFERENCES:
patent: 3003219 (1961-10-01), Suter et al.
patent: 3299191 (1967-01-01), Mantscheff et al.
patent: 3490605 (1970-01-01), Koss
patent: 3571835 (1971-03-01), Buechler
patent: 3579759 (1971-05-01), Zuccolo
patent: 3985480 (1976-10-01), Finsterwalder

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