Method for vertical mechanical connection of fabricated shear walls

Abstract

The invention belongs to the field of connection structures of building structures, and particularly relates to a vertical dry-process connection structure of fabricated concrete shear walls and a construction method. The method comprises the steps of firstly designing and separating components of the upper shear wall and the lower shear wall according to structural loads and a design discipline of fabricated concrete structures, determining positions of the components of the vertical connection structure of the upper shear wall and the lower shear wall, then determining diameters, intervals and positions of upper shear wall bottom vertical extended rebars and lower shear wall top vertical extended rebars, then determining relevant specifications and attributes of rigid metal box embeddedparts, including position fixing of the rigid metal box embedded parts and material and size determination of the rigid metal box embedded parts, then performing maintenance and demoulding inspectionof the components of the upper shear wall and the lower shear wall, and finally performing hoisting construction and installation. The vertical dry-process connection structure of the fabricated concrete shear walls has a simple main structure, and can realize quick connection of the upper shear wall and the lower shear wall, thereby effectively improving the construction speed, achieving environment-friendly application, and achieving a broad market prospect.

Description

Technical field: [0001] The invention belongs to the field of connection structures of building structures, and in particular relates to a vertical dry connection structure and construction method of an assembled concrete shear wall. Background technique: [0002] In recent years, the prefabricated concrete shear wall structure has been widely used in the field of housing construction, because it effectively improves the construction quality and construction efficiency; and saves materials, saves energy, reduces emissions and protects the environment, saves labor and improves working conditions; shortens the construction period and facilitates Therefore, it plays a major role in my country's construction industrialization. [0003] In the prefabricated concrete shear wall components, the vertical connection of the shear wall is one of the key technologies. At present, the vertical connection methods commonly used for prefabricated shear walls in China are sleeve grouting con...

AI Technical Summary

Problems solved by technology

However, for the shear wall structure, there are many vertically distributed tendons, and too many connecting joints increase the difficulty of construction and increase the cost. At the same time, the seismic performance of the shear wall is also adversely affected, and the existing connection methods have disadvantages: 1. There are cold and heat bridges in the vertical connection part of the shear wall, which reduces the thermal insulation performance of the building; 2. The vertical steel bar connection of the shear wall is difficult, and the cost of the sleeve and grouting material for the steel bar sleeve grouting connection is high, and the construction quality acceptance is not good. It is convenient to carry out; 3. The lap joint connection of the core-pulling hole-forming stirrup restraint steel grout anchor and the metal bellows hole-forming steel bar grout anchor lap connection are vertical steel bars connected one by one. There are many openings, and the installation is difficult. The usage is large, and the protective layer at the opening is easy to crack. Fourth, the vertical reinforcement of the prefabricated wall is generally double-sided reinforcement. Not convenient for transportation and construction

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