Prefabricated concrete shear wall based on multi-purpose thin-walled steel pipe and its construction method

Abstract

The invention relates to an assembly concrete shear wall based on multi-purpose thin-wall steel pipe and a construction method thereof, and belongs to the technical field of building engineering. Theassembly concrete shear wall based on multi-purpose thin-wall steel pipe comprises a prefabricated concrete hollow wall plate, a thin-wall steel tube, shear wall horizontal distribution steel bars, vertical distribution bottom insertion steel bars, vertical distribution connection steel bars, long positioning steel bars, short positioning steel bars, a prefabricated concrete hollow wall plate with an edge component, edge component stirrups, edge component tiepieces, edge component longitudinal structural steel bars, bottom insert bars of the edge component longitudinal force receiving reinforcing bar, a straight thread connecting sleeve and edge component longitudinal force receiving reinforcing bars; The assembly concrete shear wall based on multi-purpose thin-wall steel pipe realizes the multi-purpose of the thin-wall steel pipe, and obviously improves the pre-cast production efficiency; the vertical distribution steel bar of the inter-layer shear wall is replaced by thin-wall steelpipes to reduce the use amount of the steel bars, and connecting steel bars are adopted at the floor to realize the overlapping connection between the upper and lower layers, and the connection is convenient and reliable; some concrete filled steel tube significantly improve the structural properties of shear wall, including compression, bending, shear, energy consumption, ductility, etc.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, and in particular relates to a prefabricated concrete shear wall based on a multi-purpose thin-walled steel pipe and a construction method thereof. Background technique [0002] At present, there are mainly the following methods for the connection of vertically distributed steel bars in prefabricated concrete shear walls: [0003] The connection method in JGJ 355-2015 of "Technical Regulations for the Application of Reinforcement Sleeve Grouting Connection" is the main connection method for steel bars in prefabricated concrete structures at present, but this technology has been questioned due to the difficulty of inspection and the large influence of human factors. The industry believes that the quality is unstable and unreliable; and the concrete shear wall has a large amount of vertically distributed steel bars and thin diameters, resulting in high connection costs. In order to...

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Problems solved by technology

However, the problems of this method are: the amount of steel used is too large, and the cost is increased; the working state performance between the double steel pipes and between the inner pipe and the concrete is difficult to be clear, and the application is hindered; it is very different from the current national engineering construction technical standards Far, there are technical bottlenecks

However, the problem with this patented technology is that the steel pipe is only used to improve the performance of the shear wall and has no other purpose, and it is only suitable for cast-in-place concrete structures

However, the problem with this technology is that the steel pipe is only used to improve the performance of the shear wall and has no other purpose, and it is only suitable for cast-in-place concrete structures

[0010] In the existing connection method of vertically distributed steel bars in prefabricated concrete shear walls, there are problems of uncertain quality and high cost in the scheme of grouting connection; the use of prefabricated hollow hole concrete wall panels, post-casting concrete in the hollow holes to achieve direct The schemes of overlapping, indirect overlapping or mechanical connection have problems such as difficult hole forming process, reduced efficiency and increased cost; in order to solve these existing problems, it is urgent to propose new technical solutions

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