Total prefabricated pier, cushion cap and beam body prefabricated construction movable cantilever type bridge girder erection machine

Abstract

The invention provides a total prefabricated pier, cushion cap and beam body prefabricated construction movable cantilever type bridge girder erection machine. The movable cantilever type bridge girder erection machine comprises a main beam, a front supporting leg, a pull rod system, a middle supporting leg, a front hoisting trolley, a rear hoisting trolley, a rear supporting leg and a power system; the front end of the main beam is supported by the front supporting leg, the rear end of the main beam is supported by the rear supporting leg, and the middle of the main beam is supported by the middle supporting leg; the main beam is of a box type double-main-beam structure, and comprises beam bodies located on the two sides and mutually symmetrical; in this way, the movable cantilever type bridge girder erection machine solves the deficiency of an existing bridge construction prefabricated technology, can not only achieve erection of bridge beam bodies in conventional operation, but alsocan achieve installation of the prefabricated pier and the cushion cap, the construction quality of the bridge is greatly improved, and the construction period of the project is shortened.

Description

technical field [0001] The invention relates to the technical field of bridge-erecting machines, in particular to a mobile cantilever-type bridge-erecting machine for fully prefabricated bridge piers, caps and girders in assembled construction. Background technique [0002] The bridge construction project is mainly divided into the lower part and the upper part. The lower part mainly includes three parts: piers, caps and underground foundation (pile driving); the upper part is mainly the main load-bearing structure that crosses obstacles, that is, the bridge beam body. At present, during bridge construction, the superstructure and the substructure are constructed separately, usually after the substructure is completed, the construction of the superstructure is carried out. [0003] The domestic research and application of prefabrication and assembly construction of the bridge superstructure has been very mature. Beams of various types and spans, T-beams and bridge erecting ...

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Problems solved by technology

[0008] The purpose of the present invention is to provide a mobile cantilever type bridge erecting machine for fully prefabricated bridge piers, caps and girder assembly construction, to solve the shortcomings of the existing prefabricated assembly technology for bridge construction, not only to realize bridge girder construction in conventional operations At the same time, it can also realize the installation of prefabricated bridge piers and caps, which greatly improves the construction quality of bridges and shortens the construction period

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