Prefabricating concrete column and column fabricating type connecting joint

Abstract

The invention belongs to the technical field of fabricating concrete structure, and particularly relates to a prefabricating concrete column and a column fabricating type connecting joint. Conversionsection steel is embedded in the bottom of the upper section prefabricating concrete column. Conversion section steel is embedded in the top of the lower section prefabricating concrete column. The conversion section steel of the upper and lower section prefabricating concrete columns are connected by high-strength bolts. The conversion section steel is covered with concrete. The upper and lower section prefabricating concrete columns are connected by the conversion section steel and the high-strength bolts. Construction is simple, force transfer is reliable, the connecting quality can be conveniently detected, and the finished product quality can be controlled. Construction and installation are quick and efficient, and fabricating building requirements are met.

Description

technical field [0001] The invention belongs to the technical field of assembled concrete structures, and relates to a prefabricated concrete column and an assembled connection node of the column. Background technique [0002] Prefabricated building is a building method in which building components are prefabricated in a factory, and after maintenance and acceptance, they are transported to the site for installation and construction. The development of prefabricated buildings is conducive to saving resources and energy, reducing construction pollution, improving labor production efficiency and construction quality, and promoting the construction industry to achieve informatization and industrialization. move. [0003] In building structures, a column is a vertical structural component in a building that supports the load on the upper part of the column and transfers it to the foundation. In the prefabricated concrete structure, the connection between columns mainly adopts ...

AI Technical Summary

Problems solved by technology

However, in practical applications, the grouting sleeve connection technology has many shortcomings. First, it is difficult to connect the sleeve and the steel bar during construction; second, it is difficult to detect the density of the sleeve grouting, which is prone to grout leakage and pinching, and the construction quality is difficult to guarantee. ; The third is that the sleeve process is complicated and the cost is high, which makes the overall cost of the prefabricated concrete building increase

Patent CN105239723A discloses a prefabricated concrete column that adopts steel node butt joint connection. The upper and lower ends of the connection are welded after fitting, which avoids wet operation, but the construction speed of this node is slow, and the quality of on-site welding is difficult to guarantee; patent CN207469439U discloses a precast concrete column connection node , this joint simplifies the lapping work of the steel bars in the joint area and reduces the post-pouring work in the joint area, but it is difficult to guarantee the grouting density at the joint, and it is easy to have a sandwich layer during the construction process

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