Mounting device and mounting method of prefabricated box girder bottom web steel bar framework

Abstract

The invention discloses a mounting device and a mounting method of a prefabricated box girder bottom web steel bar framework. The mounting device is characterized by comprising a mounting mold and a corrugated pipe positioning device, the mounting mold comprises a supporting platform, a web steel bar supporting assembly and a bottom plate steel bar positioning assembly, the web steel bar supporting assembly is arranged on the supporting platform and used for positioning and supporting the web steel bar framework, the bottom plate steel bar positioning assembly is arranged on the supporting platform, the bottom plate steel bar positioning assembly is used for positioning the bottom plate steel bar framework, and the corrugated pipe positioning device is used for rapidly positioning the mounting position of a corrugated pipe. The mounting device is simple in structure and accurate in positioning, and the problem that the interval percent of steel bars commonly existing in the installation of the steel bars of a prefabricated box girder is low is solved. According to the mounting method, a constructor does not need to perform marking alignment and interval measurement in the mountingprocess, so that the construction efficiency is greatly improved, and the mounting speed of the box girder steel bar framework can be increased by twice.

Description

technical field [0001] The invention relates to the technical field of water conservancy engineering, in particular to an installation device and an installation method for binding the reinforcement frame of the bottom web of a prefabricated box girder. Background technique [0002] Water conservancy projects are projects built to control and allocate natural surface water and groundwater to achieve the purpose of eliminating harm and rejuvenating profits. Only through the construction of water conservancy projects can water flow be controlled, floods prevented, and water volume adjusted and distributed to meet the needs of people's life and production for water resources. A hydraulic project requires the construction of different types of hydraulic structures such as dams, dikes, spillways, sluices, intakes, channels, and bridges to achieve its goals. In the prefabricated construction of box girders of bridges, the general method of installing box girder skeleton reinforce...

AI Technical Summary

Problems solved by technology

Usually, temporary supports are used for support and positioning when making the steel skeleton of the bottom web, but these temporary supports often have the phenomenon that the overall linearity of the steel bars is not straight enough, resulting in uneven spacing of the steel bars, increasing the probability of the spacing exceeding the standard, and causing the binding of the steel bars The post-qualification rate is low, and the erection and dismantling of temporary supports also leads to waste of manpower and time, and the production efficiency is low

Now there are some molds for binding prefabricated box girder reinforcement skeletons. These molds generally have problems such as complex structure, troublesome operation, low flexibility, and small operating space for construction personnel.

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