Prefabricated and assembly type steel reinforced concrete column with high-performance concrete frame and construction method

Abstract

The invention discloses a prefabricated and assembly type steel reinforced concrete column with a high-performance concrete frame. The prefabricated and assembly type steel reinforced concrete column adopts an idea of partial prefabricated assembly and partial casting in situ and comprises a prefabricated part and a cast-in-situ part. The prefabricated assembly type steel reinforced concrete column comprises a prefabricated high-performance concrete hollow column, longitudinal bars, section steel, stirrups and cast-in-situ common concrete, wherein the longitudinal bars are arranged in the prefabricated high-performance concrete hollow column along the column-length direction; the section steel is arranged in the prefabricated high-performance concrete hollow column along the column-length direction; the stirrups are spread on the cross section of the prefabricated high-performance concrete hollow column at equal intervals; the longitudinal bars and the section steel are enclosed by the stirrups; a central cavity of the prefabricated high-performance concrete hollow column is filled with the cast-in-situ common concrete. The invention also provides a construction method. The prefabricated and assembly type steel reinforced concrete column with a high-performance concrete frame and the construction method disclosed by the invention have the advantages that the hollow prefabricated high-performance concrete column can generate circumferential constraining force for the cast-in-situ common concrete, so that the bearing capability is improved, the whole performance and the seismic resistance of the structure are improved, the deformation capability of a member in the process of transportation and lifting is improved, and the comprehensive improvement and enhancement of the stressing performance and the use performance of the prefabricated steel reinforced concrete member are realized.

Description

technical field [0001] The invention belongs to the technical field of buildings, in particular to a prefabricated steel concrete column with a high-performance concrete frame and a construction method. Background technique [0002] Steel Reinforced Concrete Structure (often translated as Steel Reinforced Concrete Structure, referred to as SRC structure) refers to the form of steel-concrete composite structure formed by disposing steel in the cross section of reinforced concrete members. Compared with the reinforced concrete structure, due to the configuration of steel inside the reinforced concrete section, the steel concrete structure has significant advantages such as high strength, high rigidity, good seismic performance, and small section size. Compared with the steel structure, because the steel is wrapped with reinforced concrete, the steel concrete structure has the outstanding advantages of low cost, high rigidity, good fire resistance and durability. Therefore, fr...

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Problems solved by technology

[0003] At present, the steel concrete structure is mainly used in some large super high-rise buildings and long-span buildings, such as Shanghai Jinmao Tower, Shanghai World Financial Center, CCTV new station site, China World Trade Center Phase III main building and other projects. Some large-scale super high-rise buildings and long-span buildings, such as Shanghai Jinmao Tower, Shanghai World Financial Center, CCTV new station site, and the main building of China World Trade Center Phase III, all use steel-concrete structures. Steel concrete structures are seldom used in buildings. One of the main reasons is that steel concrete structures have many on-site construction procedures and complex structural connections.

It is precisely because of the outstanding shortcoming of complex construction of steel-concrete structures that the popularization and application of steel-concrete structures has been greatly restricted, resulting in the inability to give full play to the excellent comprehensive performance of steel-concrete structures.

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