Partially-prefabricated hollow steel reinforced concrete hollow column and construction method thereof

Abstract

The invention discloses a partially-prefabricated hollow steel reinforced concrete hollow column, and further provides a construction method thereof. The prefabrication idea is adopted. The partially-prefabricated hollow steel reinforced concrete hollow column comprises a prefabricated high-performance concrete hollow column body, longitudinal ribs, pieces of profile steel, steel plates and stirrups. The longitudinal ribs and the pieces of profile steel are arranged in the prefabricated high-performance concrete hollow column body in the column length direction. The steel plates are laid on the pieces of profile steel at equal intervals in the column length direction. The stirrups are laid on the cross section of the prefabricated high-performance concrete hollow column body at equal intervals. The longitudinal ribs and the pieces of profile steel are surrounded by the stirrups. The prefabricated high-performance concrete hollow column body can generate annular binding force on the internal profile steel, and thus the bearing capacity of the prefabricated high-performance concrete hollow column body is improved; the internal profile steel and the steel plates are welded to form a rectangular annular hollow structure, the step of internal formwork erecting in the construction process is omitted, the self-weight of the structure can be decreased effectively, the overall performance and seismic performance of the structure are improved, the deformation ability of components in the transportation and hoisting processes is improved, hoisting difficulty is reduced, and the forceperformance and use performance of the prefabricated steel reinforced concrete components are improved comprehensively.

Description

technical field [0001] The invention belongs to the technical field of construction, in particular to a partially prefabricated and assembled hollow steel concrete hollow column and a construction method. Background technique [0002] Steel Reinforced Concrete Structure (often translated as Steel Reinforced Concrete Structure, referred to as SRC structure), which is a structural form in which steel is embedded in concrete and equipped with an appropriate amount of longitudinal reinforcement and stirrups. The configured longitudinal steel bars and stirrups are mainly required for the structure, and the bearing capacity of the components mainly depends on the section steel. In the cross-section of steel concrete structural members, the configuration of steel can be divided into two categories: solid belly type and empty belly type. As an important new structural system, it has the common advantages of ordinary concrete structures and steel structures: compared with reinforced...

AI Technical Summary

Problems solved by technology

[0003] Steel concrete structures are now widely used in important buildings such as super high-rise and long-span structures, such as China Zun, Shanghai Jinmao Tower, Shenzhen Diwang Tower, Shanghai World Financial Center, CCTV new station site, China World Trade Center Phase III main building and other landmark buildings, However, in general high-rise buildings and multi-storey buildings with large quantities and wide areas, steel concrete structures are seldom used. The main reason 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 that the popularization and application of steel concrete structures is greatly restricted, resulting in the failure of full use of the excellent comprehensive performance of steel concrete structures.

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