Connection node for adjacent prefabricated members and construction method of connection node

Abstract

The invention relates to a connection node for adjacent prefabricated members and a construction method of the connection node. Pre-embedded in a first prefabricated member are a plurality of first reinforcing bars extending towards the direction of a second prefabricated member. Pre-embedded in the second prefabricated member are a plurality of second reinforcing bars extending towards the direction of the first prefabricated member. The first reinforcing bars and the second reinforcing bars are oppositely arranged in pairs. First cylinder bodies are connected to the ends, close the second prefabricated member, of the first reinforcing bars. Second cylinder bodies are connected to the ends, close the first prefabricated member, of the second reinforcing bars. The first cylinder bodies andthe second cylinder bodies are connected through connecting rods. Castable is cast between the first prefabricated member and the second prefabricated member. By applying the connection node and theconstruction method, the prefabrication rate of floor slabs can be raised from 46.2% to 93%-100%, and the structural stress of the prefabricated floor slabs is equivalent to that of cast-in-place floor slabs. Therefore, the construction efficiency and construction quality on site are further improved, the labor cost on the construction site is lowered, and adverse impacts of construction on the environment is reduced.

Description

technical field [0001] The invention relates to a connection node of adjacent prefabricated components and a construction method thereof, in particular to the design and application of fully prefabricated components of an assembled building. Background technique [0002] Industrialized prefabricated buildings are the general trend of the development of the construction industry. At present, prefabricated floors are mainly laminated truss floors, which have outstanding advantages, but there are the following bottlenecks: [0003] 1. Limit the prefabrication rate of prefabricated buildings. Such as: 130mm thick truss floor, prefabrication 60mm, cast-in-place 70mm, the prefabrication rate of the floor is only 46.2%. Since most of the cast-in-place work has been retained at the construction site, there is still a lot of room for improvement in construction efficiency, quality, and environment. [0004] 2. Increased steel bar cost (mainly truss cost). The truss reinforcement i...

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Problems solved by technology

[0004] 2. Increased steel bar cost (mainly truss cost)

In addition, the truss steel structure is relatively complex, in addition to high material costs, there are also high manufacturing (bending, welding) costs

[0005] 3. Limit the minimum thickness of the floor

[0006] For example, the thickness of the floor slab in the structural design of a certain project only needs to be 100mm, but in order to make a truss laminated floor slab, the thickness must be increased to 130mm, and the weight of the floor slab has increased by 30%, so the reinforcement of the floor slab will also increase accordingly; at the same time, due to the load increase, the size and reinforcement of load-bearing structures (beams, walls, columns) will also increase accordingly, which will eventually lead to a substantial increase in cost

[0007] 4. Reduce the safety factor of the structure

In some areas with complex embedded pipelines, the existence of trusses caused certain interference, resulting in the actual thickness of the floor slab significantly exceeding the design thickness, and the weight of the floor slab increased, thereby reducing the safety factor of the structure

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