Prefabricated hollow steel-reinforced concrete column and splicing structure and splicing method thereof

Abstract

The invention discloses a prefabricated hollow steel-reinforced concrete column. The prefabricated hollow steel-reinforced concrete column comprises a central steel pipe, concrete, a plurality of longitudinal reinforcing steel bars and stirrups strapped on the longitudinal reinforcing steel bars; the concrete wraps the central steel pipe, the longitudinal reinforcing steel bars and the stirrups, the two ends of the central steel pipe and the two ends of each longitudinal reinforcing steel bar stretch outside the upper end face and the lower end face of the concrete, and the parts, stretching outside the end faces of the concrete, of the central steel pipe are longer than the parts, stretching outside the end faces of the concrete, of each longitudinal reinforcing steel bar; a plurality of lifting holes are formed in the side face of the upper end of the central steel pipe, and erection bolt holes penetrating through the central steel pipe and the concrete are formed in the upper end and the lower end of the side face of the concrete. The invention further provides a splicing structure and a splicing method of the prefabricated hollow steel-reinforced concrete column. The prefabricated hollow steel-reinforced concrete column can effectively increase construction speed and the use ratio of resources.

Description

technical field [0001] The invention relates to the field of construction engineering, in particular to a prefabricated hollow steel concrete column and its splicing structure and splicing method. Background technique [0002] As a kind of composite material, steel concrete is widely used in engineering. It cleverly plays the respective advantages of the constituent materials and has good technical and economic effects. Scientific researchers and engineers have done a lot of research and practice on steel concrete materials. At present, the basic framework of steel concrete structure theory has been formed, and a series of monographs have been published, which is the most important cornerstone for the wide application of steel concrete structures. At the same time, a batch of patents related to steel reinforced concrete columns were produced. Liu Zhiguo et al. applied for a utility model patent (application number 201020232784.8) named "Stiff Concrete Column and Reinforced C...

AI Technical Summary

Problems solved by technology

As we all know, the steel concrete structure is produced by combining the advantages of the steel structure and the concrete structure, but the concrete cast-in-place production method makes this structure have no advantages over the concrete structure in terms of construction speed and resource consumption

Images