Prefabricated steel-concrete hybrid frame structure and construction method based on composite beams

Abstract

The invention relates to the technical field of assembled frame buildings and discloses an assembled type steel-concrete mixed frame structure based on a laminated beam and a construction method. Thestructure comprises a section steel concrete laminated beam, section steel concrete hollow columns, a column connecting seat for connecting upper and lower adjacent section steel concrete hollow columns and a core node connecting device for connecting the section steel concrete laminated beam and the section steel concrete hollow columns; the section steel concrete laminated beam comprises a prefabricated beam shell, a beam core section steel and beam rib frame fixedly pre-buried in the prefabricated beam shell, and a beam cast-in-situ layer; each section steel concrete hollow column comprisesa piece of column core section steel, a prefabricated column shell wrapped outside the column core section steel, a column rib frame positioned in the prefabricated column shell, and sealing end plates positioned at the upper end and lower end of the section steel concrete hollow column; the core node connecting device comprises a connecting sleeve and a connecting steel beam. According to the invention, the laminated beam and the laminated columns are mainly adopted, the hoisting difficulty of the prefabricated component is small, and the integrity of the frame is good.

Description

technical field [0001] The invention relates to the technical field of prefabricated frame buildings, in particular to a prefabricated steel-concrete mixed frame structure based on composite beams and a construction method. Background technique [0002] The steel concrete structure refers to the steel-concrete composite structure formed by disposing steel in the section of the reinforced concrete member. Compared with the reinforced concrete structure, the steel concrete structure has significant advantages such as high bearing capacity, high rigidity, and good seismic performance due to the configuration of steel inside the reinforced concrete section; compared with the steel structure, because the external steel is wrapped with concrete, the steel concrete structure It has the advantages of low cost, high rigidity, good fire resistance and durability. Therefore, the steel-concrete structure has the advantages of both concrete structure and steel structure, and is a steel-...

AI Technical Summary

Problems solved by technology

[0006] The technical problems to be solved are: most of the existing frame systems are fully prefabricated frame structures, the prefabricated components are self-heavy, the requirements for transportation and hoisting equipment are high, and the hoisting is difficult and the installation cost is high; at the same time, the connection nodes between beams and columns are complex , the connectivity of the concrete section is difficult to guarantee, the controllability of the connection quality is poor, and the integrity of the frame system is poor

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