Reinforced concrete prefabricated components and installation method

Abstract

The invention discloses a reinforced concrete prefabricated assembly and an installation method. The reinforced concrete prefabricated assembly includes a first prefabricated component and a second prefabricated component docked with the first prefabricated component; the first prefabricated component and the second prefabricated component The butt ends of the components are formed with reserved spaces for connecting the pre-embedded steel bars protruding from the two parts respectively. Due to the reserved space formed after the two prefabricated components are docked, the reserved space enables the pre-embedded steel bars in the two prefabricated components to be connected by various mechanical connection methods including sleeve grouting and taper sleeve locking, so that Two prefabricated components can be connected through more connection assembly methods.

Description

technical field [0001] The invention relates to the fields of construction and nuclear power, in particular to a reinforced concrete prefabricated component and an installation method. Background technique [0002] At present, in the process of vigorously promoting the industrialization of buildings in the country, reinforced concrete prefabricated assembly technology has been widely used in urban buildings. Prefabrication is carried out to form prefabricated components such as prefabricated beams, prefabricated columns, prefabricated floors and wall panels, and then these prefabricated components are butt-jointed and assembled on the construction site to form buildings. The advantages of reinforced concrete prefabricated assembly technology are: saving labor force, speeding up construction, helping to realize building energy saving and mechanized construction. The butt joint assembly between prefabricated components is mainly realized through the mechanical connection of t...

AI Technical Summary

Problems solved by technology

[0004] 1. The prefabricated components are connected by plane butt joint, which fails to give the space required for the pre-embedded steel bar connection, which greatly limits the usual steel bar connection methods (welding, screw connection and other connection methods that require a certain connection space ), so that the connection between steel bars is limited to the sleeve grouting connection

[0005] 2. There are many construction links in the sleeve grouting connection technology, and the construction is complicated

There are seven processes for sleeve full grouting connection, and as many as fourteen processes for sleeve half-grouting prefabrication and connection, so many processes are extremely unfavorable to prefabrication and installation

[0007] 3. The cost of materials, processing and construction required for sleeve grouting connection technology is high

[0009] 4. There are many hidden dangers in the construction quality of sleeve grouting connection technology, and the quality after connection is unknown

[0010] In the prefabrication link: from steel bar cutting and blanking, thread processing, sleeve installation, sleeve positioning, grouting pipe installation, and then to installation: connection part inspection, connection seam sealing, sleeve and grouting material quality, grouting material preparation, Grouting connection, joint protection after grouting, any problem in any link will affect the quality of the sleeve grouting connection, thus affecting the quality of the prefabricated assembly structure

In addition, the sleeve grouting connection mainly depends on the control of the processing and construction process. Once the connection is completed, the connection quality cannot be detected. Therefore, this technology has a high level of quality management and construction process control requirements for construction companies.

[0011] In summary, due to the prefabricated components connected by sleeve grouting, the space required for connection cannot be reserved for the steel bars inside when they are docked, which leads to the inability to connect the steel bars in other ways, and finally limits the connection methods of the steel bars

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