Stable hoisting equipment for expressway steel box girder and hoisting construction method of stable hoisting equipment

Abstract

The invention relates to the technical field of steel box girder construction, in particular to stable hoisting equipment for an expressway steel box girder. The stable hoisting equipment comprises a first carrier loader and a second carrier loader, a workbench is arranged on the first carrier loader, and a main rotary table capable of horizontally rotating is installed on the workbench through a bearing. The hoisting method of the stable hoisting equipment comprises the steps of equipment in-place, hoisting preparation, hoisting, adjustment and laying down of the steel box girder and the like. The stable hoisting equipment has the beneficial effects that a larger hoisting mechanism can be transported by utilizing the first carrier loader and the second carrier loader, so that a farther hoisting distance and a higher hoisting weight are provided; and the larger hoisting mass and the higher hoisting height can be freely adjusted by changing the supporting position of a jacking push rod on a main push rod, and the two carrier loaders are adopted in the device to support the main push rod in a distributed mode, so that compared with existing hoisting equipment carried by a single carrier loader, the hoisting equipment has better stability performance, and the use is safer.

Description

technical field [0001] The invention relates to the technical field of steel box girder construction, in particular to an expressway steel box girder stable hoisting device and a hoisting construction method thereof. Background technique [0002] Steel box girder is an important component of building long-span expressway bridges. After production, the steel box girder needs to be transported to the site by transportation equipment, and then the steel box girder is lifted by the lifting equipment, so as to hoist the steel box girder to the location where it needs to be installed. . However, the mass of the steel box girder is relatively large, and the existing vehicle-mounted lifting equipment is difficult to effectively handle the lifting task of the large-mass steel box girder, mainly because the existing vehicle-mounted lifting equipment uses a single transport vehicle for transportation and support, and the lifting The support position of the arm is fixed, which leads to...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a stable hoisting equipment for expressway steel box girders and its hoisting construction method, so as to solve the problem that the existing vehicle-mounted hoisting equipment proposed in the above background technology has limited hoisting capacity and cannot stably hoist large-mass steel box girders The problem

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