A construction method for overall hoisting after pre-bundling of steel bars for the roof of cast-in-place pipe gallery

Abstract

The invention discloses an overall hoisting construction method for pre-bundled steel bars for a cast-in-place pipe rack roof panel. The method comprises the following steps: processing, assembling and tack welding and connecting framed bent steel bars; fixing framed bent steel bars with a hanging bracket and transporting to a construction site; performing positioning adjustment on a framework ofthe steel bars, and performing overall hoisting; positioning, adjusting and decoupling the framework of the steel bars to complete the pre-binding. The steel bars are processed by numerical control equipment to ensure the processing precision of the steel bard, and the steel bars are pre-bundled through a steel bar positioner, so that the overall size of the framework of the steel bars is ensuredto be accurate; the overall hoisting of the steel bars is implemented by means of fine adjustment and other measures, so that the deviation of the site installation position of the steel bars is reduced, and the purpose of improving the installation quality of the main steel bars of a pipe rack is achieved; in the process of steel bars binding of a pipe rack roof panel, most of the main construction content is completed from a non-main line construction line, thereby saving the process time; the steel bar transportation, on-site storage and steel bar binding standardization are realized by theapplication of the steel bar hanging bracket of the pipe rack roof panel.

Description

technical field [0001] The invention relates to the field of construction of the roof of a pipe gallery, in particular to a construction method for overall hoisting after pre-binding of steel bars for the roof of a cast-in-place pipe gallery. Background technique [0002] At present, the urban underground comprehensive pipe corridor is one of the symbols of modernization, technology and intensification of urban construction. With the sustained and steady growth of my country's economy and the further acceleration of the urbanization process, the construction volume of underground comprehensive pipe corridors in my country has increased year by year. At present, most of the steel bar projects in the pipe gallery still adopt the construction technology of on-site steel bar installation and forming, which greatly reduces the construction efficiency and the construction quality is difficult to guarantee. Especially, most of the pipe gallery construction is in the urban area, the...

AI Technical Summary

Problems solved by technology

At present, most of the pipe gallery steel reinforcement projects still adopt the construction technology of on-site steel bar installation and forming, which greatly reduces the construction efficiency and the construction quality is difficult to guarantee. Especially, most of the pipe gallery construction is in the urban area, the construction work area is narrow, and the on-site steel bar storage area is limited. The stacking of steel bars on site has a great impact on the layout of the construction site and on-site traffic, and there are many steel bars stored on site, making it difficult to stack steel bars neatly and affect the civilized construction organization on site. Steel bars need to be transported repeatedly, which greatly affects construction efficiency

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