Method of using locally corrugated thin-wall steel pipes for preparing assembled concrete shear wall

Abstract

The invention discloses a method of using locally corrugated thin-wall steel pipes for preparing an assembled concrete shear wall, and belongs to the technical field of constructional engineering. Theassembled concrete shear wall is composed of the locally corrugated thin-wall steel pipes, local ripples, a prefabricated concrete hollow wall plate, post-pouring concrete, an edge component prefabrication segment and the like. The locally corrugated thin-wall steel pipes can achieve multiple purposes and serve as one-time hole-forming molds of prefabricated concrete hollow wall plate hollow holes, interlaminar shear wall vertically distributed steel bars are replaced with the locally corrugated thin-wall steel pipes, and the structural properties of compression resistance, bending resistance, shear resistance, power consumption, ductility and the like of the shear wall are significantly improved; one sides of the shear faces of the locally corrugated thin-wall steel pipes are provided with ripples, vertical interfaces between the locally corrugated thin-wall steel pipes and the concrete can be prevented from being subjected to shear slipping under the effect of horizontal loads, andtherefore the structural properties of the concrete shear wall are further improved. The method has the advantages that the prepared assembled concrete shear wall is convenient to prepare and produceand good in quality, construction is efficient, the cost and energy are saved, and environment is protected.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, and in particular relates to a method for preparing an assembled concrete shear wall by using a local corrugated thin-walled steel pipe. 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 promote th...

AI Technical Summary

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

However, since the vertical interface between the thin-walled steel pipe and concrete may have shear slippage under horizontal loads, which may affect the structural performance, it still needs to be improved too high

Images