Movable cantilever hanging basket for steel box girder construction and construction method

Abstract

The invention discloses a movable cantilever hanging basket for steel box girder construction and a construction method. The movable cantilever hanging basket for steel box girder construction comprises a hanging basket body which can horizontally move on the steel box girder, a hanging basket walking device arranged on the hanging basket body and a walking track for the hanging basket walking device to walk, and the hanging basket walking device is arranged on the walking track. The hanging basket body is arranged on a flange plate of the steel box girder, the hanging basket body is providedwith a welding construction platform, and the welding construction platform is a telescopic construction platform. The construction method comprises the first step of construction of a middle girder body of the steel box girder, the second step of welding construction of the flange plate of the steel box girder and the third step of construction completion of the steel box girder. The movable cantilever hanging basket for steel box girder construction is reasonable in design, easy and convenient to construct and good in using effect, the hanging basket can horizontally move on the steel box girder in the longitudinal bridge direction, welding requirements under the situation that widths of cantilever segments are unequal can be met through the telescopic construction platform on the hanging basket, the construction process of the steel box girder can be easily, conveniently and rapidly completed, the welding process of the flange plate of the steel box girder is easy and convenient, the welding efficiency is high, and the welding quality is easy to guarantee.

Description

technical field [0001] The invention belongs to the technical field of hanging basket construction, and in particular relates to a movable cantilever hanging basket for steel box girder construction and a construction method. Background technique [0002] The hanging basket is the main equipment in the cantilever construction. The hanging basket is also called the cantilever hanging basket, which is suitable for high-altitude construction operations. The existing hanging basket usually adopts a basket-type workbench prefabricated by section steel. The box girder is a kind of beam in bridge engineering. The inside of the box girder is hollow (that is, the box chamber), and flanges (also called flange plates) are arranged on both sides of the upper part of the box girder. The flange plate is a cantilever structure, also known as the cantilever section of the box girder. The flange plate of the box girder is the section that hangs out from the left and right sides of the upper ...

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Problems solved by technology

When the traditional hanging basket is used for construction, the position of the hanging basket will be fixed once the hanging basket is moved in place. However, when welding the cantilever section and the box chamber section of the steel box According to the operation requirements, it is necessary to continuously and uninterruptedly adjust the position of the hanging basket, which will consume a lot of operating time, take a lot of time and labor, and the construction efficiency is low, especially when the longitudinal length of the steel box girder is long, which seriously affects the construction progress; and in When the width of the cantilever section is different, the length of the operating platform of the hanging basket needs to be designed separately. One hanging basket can only carry out construction on the cantilever section of the same width, so that the turnover rate and utilization rate of the hanging basket are greatly reduced.

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