Stable supporting frame assembly for highway steel box girder construction and construction method thereof

Abstract

The invention relates to the technical field of steel box girder construction, in particular to a stable supporting frame assembly for highway steel box girder construction, which comprises a pair of unit frames, and each unit frame is sequentially composed of a bottom supporting unit, a fixed-height main body unit, a hydraulic lifting unit and a top supporting unit which are connected in series from bottom to top. The construction method comprises the steps of position calibration, main body building, adjustment, jacking, disassembly and the like. The supporting frame assembly has the beneficial effects that the bottom supporting unit, the fixed-height main body unit, the hydraulic lifting unit, the top supporting unit, the transverse supporting beams and the side unit pipes can be assembled to form the supporting frame adapting to the mounting height of the steel box girder, and the supporting frame is simple in assembling mode and convenient to disassemble and use again; the supporting frame can directly and finely adjust the height of the steel box girder through the hydraulic lifting unit, so that the steel box girder can conveniently and accurately reach the specified installation height, and subsequent fixed installation of different sections of steel box girders is facilitated.

Description

technical field [0001] The invention relates to the technical field of steel box girder construction, in particular to a stable support frame assembly for expressway steel box girder construction and a construction method thereof. Background technique [0002] Steel box girder is an important part of highway bridge construction. During the construction of steel box girder, it is necessary to transport the steel box girder from the manufacturing site to the construction site, and then hoist the steel box girder on the pre-arranged support frame components, and then install the steel box girder After the box girder is assembled and fixed, the support frame assembly at the bottom is removed to complete the installation of the steel box girder. However, when the existing support frame components are in use, it is difficult to quickly adjust the height according to the installation height of different steel box girders, and it lacks a good follow-up fine-tuning ability for the he...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a stable support frame assembly for expressway steel box girder construction and its construction method, to solve the problem that the existing support frame assembly proposed in the background technology cannot quickly adjust the height according to the installation height of different steel box girders. Adjustment and lack of ability to fine-tune the height of the steel box girder

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