Lengthening joint containing prefabricated concrete-filled steel tube core column component and construction method of lengthening joint

Abstract

The invention discloses a lengthening joint containing a prefabricated concrete-filled steel tube core column component and a construction method of the lengthening joint. The lengthening joint comprises an upper-section core column, a lower-section core column, a steel reinforcement framework, a joint concrete layer and out-of-tube concrete layers. The bottom end of the upper-section core columnis connected with an upper flange plate, the top end of the lower-section core column is connected with a lower flange plate, a connecting assembly comprises a connecting plate, bonding glue layers and high-strength bolts, the connecting plate is arranged between the upper flange plate and the lower flange plate, air holes are formed in the middle of the plate face of the connecting plate at intervals, the bonding glue layers are arranged between the connecting plate and the upper flange plate and between the connecting plate and the lower flange plate, and the upper-section core column and the lower-section core column are connected through the high-strength bolts; and the steel reinforcement framework is arranged around joints of the upper-section core column and the lower-section core column, and the joint concrete layer is poured between the out-of-pipe concrete layer on the outer side of the upper-section core column and the out-of-pipe concrete layer on the outer side of the lower-section core column. The technical problems that the thickness of an existing joint cannot be adjusted, inclination deviation exists, compression deformation is large, force transmission is not reliable, construction efficiency is low, and concrete in a steel pipe is difficult to pour are solved.

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 ...

AI Technical Summary

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

Images