Fabricated type concrete frame beam column connecting construction of steel tube with U-shaped steel brackets

Abstract

The invention provides a fabricated type concrete frame beam column connecting construction of a steel tube with U-shaped steel brackets. The fabricated type concrete frame beam column connecting construction of the steel tube with the U-shaped steel brackets comprises a steel joint, a prefabricated lower cutted column, a prefabricated upper cutted column and 2-6 prefabricated superposed beams. The steel joint comprises an annular steel tube and the 2-6 U-shaped steel brackets. More than two annular flanges are arranged on the inner wall of the annular steel tube, the annular flange at the bottommost end is parallel and level with the bottom of the annular steel tube, and a plurality of steel bar positioning holes are formed in the annular flanges. A plurality of upper reserved longitudinal ribs are arranged on the prefabricated upper cutted column, a plurality of lower reserved longitudinal ribs are arranged on the prefabricated lower cutted column, external threads are arranged on the end parts of the lower reserved longitudinal ribs, and the lower reserved longitudinal ribs penetrate through the steel bar positioning holes and are connected with the upper reserved longitudinal ribs through semi-grouting type steel bar joints. The bottom surfaces of the semi-grouting type steel bar joints abut against the annular flange at the most upper end. The prefabricated superposed beams are inserted into the U-shaped steel brackets. According to the fabricated type concrete frame beam column connecting construction of the steel tube with the U-shaped steel brackets, a template andsupport are not required on the outer side of the joint, the joints are not required in connection of the prefabricated superposed beams, the mounting speed is greatly improved, and the anti-seismic performance of the structural joint is more excellent.

Description

technical field [0001] The invention relates to the construction field, in particular to an assembled concrete frame beam-column connection structure with steel pipes and U-shaped steel corbels. Background technique [0002] The current prefabricated concrete frame beam-column connection structure has problems for the owner, such as high cost, long construction period, low efficiency, and high safety risks. For the general contractor, there are many types of work, many conflicts between the work site and the stacking site, and high transportation costs. There are many unstable factors in connection, high requirements for hoisting equipment, high support requirements, difficult construction connection, and many control points. Difficult installation of reinforcement, increased instability of steel sleeve grouting connection quality, complex grouting process, few remedial methods for problems, difficulty in positioning and deviation adjustment of reinforcement, low efficiency ...

AI Technical Summary

Problems solved by technology

[0002] The current prefabricated concrete frame beam-column connection structure has problems for the owner, such as high cost, long construction period, low efficiency, and high safety risks. For the general contractor, there are many types of work, many conflicts between the work site and the stacking site, and high transportation costs. There are many unstable factors in connection, high requirements for hoisting equipment, high requirements for support, difficult construction connection, and many control points. Difficult installation of reinforcement, increased instability of steel sleeve grouting connection quality, complex grouting process, few remedial methods for problems, difficulty in positioning and offset adjustment of reinforcement, low efficiency of joint formwork, heavy workload of supporting build-up and disassembly, and on-site hoisting construction Low efficiency, difficult coordination of various types of work, and slow construction speed; there are also many problems in post-supervision, such as the degree of grouting fullness and the amount of grout falling during the curing process are difficult to check, how to make up for the deviation between steel bars and sleeves, and how to solve high stress There are problems with the impact on the connection performance under repeated action, so there is an urgent need for a fast assembly and safe and reliable connection structure

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