Connecting structure of story-added steel column base

Abstract

The invention provides a connecting structure of a story-added steel column base. The connecting structure comprises a steel column, a stiffening connecting plate, a buckling-restrained steel plate, a shoe beam web, a positioning anchor bolt, a plate lower support rib plate, a beam penetrating anchor bolt, prestressed parts, a built prestressed beam, a built structural plate, a shoe beam rib plate, a lower support steel plate, a shoe beam transverse plate, a column bottom cushion layer, a column base bottom plate, a sizing block, a lower support side plate and the like. The anchor bolts on the plate are connected with a lower steel plate support, the internal force of the column base is effectively transmitted to a new and old structure combined joint, the problem that the anchoring number and length cannot meet the design requirement is solved, and meanwhile, the ultimate bearing capacity of connection between the column base and the built structure is improved; the post-built column base joint guarantees improvement of the overall rigidity and the anti-seismic property of the joint while the performance of a built structure is not damaged, and the design principle that structural parts are connected with weak parts in a strong mode is better achieved; and the column base joint is simple in structure and facilitates construction of the prefabricated parts.

Description

technical field [0001] The invention relates to the technical field of building structure engineering, in particular to a connection structure of a layered steel column foot. Background technique [0002] With the rapid development of the modern construction industry, due to factors such as changes in use functions or the need for capacity expansion, there are more and more renovation and expansion projects of existing buildings, but there are also projects that are difficult to complete successfully with conventional construction techniques. [0003] With post-tensioned bonded prestressed floor beams, it is difficult to adopt the traditional method of destroying first and then planting reinforcement or welding at the beam-column joints, which can neither ensure that the bearing capacity of the column foot meets the use requirements, nor can it guarantee that the built building The overall rigidity and stability of the new building. The reason is that the steel bars in the ...

AI Technical Summary

Problems solved by technology

[0004] The invention aims at the problem that there is no extra space to anchor the floor beam-column joints with bonded prestressing technology, so that the rigidity of the column foot cannot meet the use requirements, and provides a connection structure for the column foot of the added layer steel column, which can improve the height of the column foot. The ultimate bearing capacity is connected with the built structure, effectively reducing the damage to the existing building, the structure is simple, and it is convenient for the purpose of prefabricated component construction

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