A kind of extension joint and construction method of prefabricated steel tube concrete core column member

Abstract

An extension node containing a prefabricated concrete-filled steel tube core column member and a construction method thereof, comprising an upper section core column, a lower section core column, a steel skeleton, a node concrete layer and an outer tube concrete layer; the bottom end of the upper section core column is connected with a the upper flange; the top of the lower core column is connected with a lower flange; the connecting component includes a connecting plate, an adhesive layer and high-strength bolts; the connecting plate is arranged between the upper flange and the lower flange; the connecting plate There are air holes spaced in the middle of the plate surface; the adhesive layer is respectively arranged between the connecting plate and the upper flange and the lower flange; high-strength bolts connect the upper and lower core columns; The node concrete layer is poured between the outer tube concrete layer outside the upper section core column and the outer tube concrete layer outside the lower section core column. The invention solves the technical problems that the existing nodes cannot adjust the thickness of the nodes, the inclination deviation, the large compression deformation, the unreliable force transmission, the low construction efficiency and the difficulty of concrete pouring in the steel tube.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, in particular to an extension node containing a prefabricated steel tube concrete core column member and a construction method thereof. Background technique [0002] Prefabricated buildings refer to buildings that are prefabricated in factories and delivered to the construction site for assembly. The promotion of prefabricated buildings can not only greatly speed up construction, improve the quality of construction projects, save labor, but also significantly reduce building energy consumption. At present, vigorously developing prefabricated buildings has become the development trend of the modernization of my country's construction industry. The composite column / or wall with steel tube concrete core column is a vertical member of a building in which a steel tube concrete core column is set in a conventional reinforced concrete column / or wall. It has high bearing capacity, good ...

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Problems solved by technology

[0004] The purpose of the present invention is to provide an extension joint containing prefabricated steel tube concrete core column members and its construction method, to solve the technical problems that the existing flange joints cannot adjust the joint thickness and inclination deviation, the compression deformation is large, and the force transmission is unreliable , it is also necessary to solve the technical problems of low construction efficiency of the combined wall column of the existing welded joint solid steel tube concrete core column and difficulty in pouring concrete inside the steel tube

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