Integrated bridge girder erection machine for prefabricated bridge pier-beamand construction method thereof

Abstract

An integrated bridge girder erection machine for a prefabricated bridge pier beam comprises a main truss, a first crane, a second crane, a main supporting leg, a main bearing supporting leg, an auxiliary bearing supporting leg, a first auxiliary supporting leg and a second auxiliary supporting leg. The first crane and the second crane are connected to the top of the main truss in a sliding manner, a first lifting appliance is arranged on the first crane, and a second lifting appliance is arranged on the second crane; and the main supporting leg, the main bearing supporting leg, the auxiliary bearing supporting leg, the first auxiliary supporting leg and the second auxiliary supporting leg are detachably connected to the bottom of the main truss. Compared with the prior art, the advanced and novel integrated bridge girder erection machine is adopted for erecting the upper structure and the lower structure, different components can be hoisted at the same time through hoisting tools of the first crane trolley and the second crane trolley, the hoisting tool replacing procedures are reduced, meanwhile, the multi-stage telescopic function of the main supporting legs can adapt to erection of bridges with different heights, equipment replacement is reduced, and the erection construction efficiency is improved.

Description

Technical field[0001]The present invention is a prefabricated bridge technology, in particular, a prefabricated bridge pier beam integrated bridge and its construction method thereof.Background technique[0002]Prefabricated assembled construction technology, due to the advantages of rapid construction, occupying space, in recent years, in the city bridge and cross-river cross-sea bridge, Lin Conve Bridge, Puerto Rican San Juan, Shanghai Yangtze River Bridge, Hong Kong-Zhuhai Bridge, Shanghai Jiayu Viaduct and other projects use prefabricated assembled bridges.[0003]Pre-installed assembled equipment has used bridge structural forms, and the application of the bridge in the upper structure is more mature. In the prefabricated assembly technology at home and abroad, the lower structure is independently assembled, and the overall construction of the bridge structure will not be considered. Sex.[0004]As the upper structure is used, the bridge is used, and the lower structure is set by lar...

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Problems solved by technology

[0003] Most of the prefabricated and assembled equipment adopts the bridge erecting machine structure. The bridge erecting machine is relatively mature in the upper structure assembly. In the prefabricated assembly technology at home and abroad, the upper and lower structures are assembled independently, and the continuous construction of the overall bridge structure cannot be considered overall. sex

[0004] For example, the upper structure is erected with a bridge erecting machine, and the lower structure is erected with a large crawler crane, which brings great construction problems in hilly areas, beaches, river beaches, and urban roads with narrow space. When the required bridge needs to be erected in hilly areas of islands , due to the undulating terrain, mountain forests and farmland coverage, inconvenient transportation, more soft foundations, and high land acquisition costs, there are certain technical difficulties

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