Steel structure and foundation pre-burying connection structure and construction method

Abstract

The invention relates to a steel structure and foundation pre-burying connection structure, which is characterized in that the pre-burying connection structure is integrally cast by a prefabricated component and a foundation bottom plate, the prefabricated component is a steel bar concrete connecting block with a connecting steel plate embedded in the upper surface, the periphery of the steel bar concrete connecting block is provided with reserved steel bars connected with steel bars arranged in a foundation, a plurality of steel structure connecting screw rods penetrating through the prefabricated component are arranged in a range of the connecting steel plate, and the lower parts of the connecting screw rods extend into the foundation. The connecting structure provided by the invention has the advantages that the connection intensity of the steel structure and the foundation can be effectively improved, the problems of bottom hollowing and the like due to non-compact casting of the bottom concrete of the traditional pre-burying component and nonuniform deformation of the steel plate and the concrete can be solved, and better technical and economic benefits are realized. The invention also discloses a construction method of the pre-burying connecting structure.

Description

technical field [0001] The invention relates to a steel structure and foundation pre-embedded connection structure and a construction method, in particular to a pre-embedded connection structure in which a prefabricated component is embedded in a foundation floor and a steel structure is indirectly connected to the foundation through connecting bolts on the prefabricated component. It belongs to the field of building installation and is suitable for the connection project between steel structure and concrete foundation, especially for the structural project of long-term vibration during the use of the upper steel structure. Background technique [0002] Because steel structure buildings have many advantages such as light weight, high strength, good plastic toughness, fast construction speed, beautiful appearance, etc., especially their reliable force transmission performance, they have been more and more widely used in building structure design in recent years. The bearing c...

AI Technical Summary

Problems solved by technology

However, in the combined embedded parts, the bottom of the embedded steel plate is prone to problems such as poor concrete pouring, air bubbles in the concrete floating up and depositing on the lower surface of the steel plate, and during the hardening of the concrete and the use of the upper structure, due to the inconsistent deformation of the concrete and the steel plate, problems will occur. The bottom of the pre-embedded steel plate will be hollowed out, which will affect the force transmission effect of the structure and even fail

[0005] To sum up, there are various forms of connection between the steel structure and the foundation. The embedded column base connection structure has the advantages of high rigidity and less steel consumption, but the anti-pull effect is not good, and in the long-term vibration environment, the concrete around the column base is easily damaged. Cracking; Exposed column feet mostly rely on embedded parts, especially combined embedded parts, which can be used for fixing and leveling different forms of steel structure column feet. It is convenient, flexible, efficient, and has high seismic effect, but its Insufficient performance is that the pre-embedded steel plate is not tightly combined with the lower concrete, which affects the structural force transmission

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