Hinged column foot structure utilizing built civil air defense panel point and construction method

Abstract

The invention belongs to the technical field of new construction on civil air defense roofs, and particularly relates to a hinged column foot structure utilizing a built civil air defense panel pointand a construction method. According to the hinged column foot structure utilizing the built civil air defense panel point and the construction method, through organic arrangement of an original civilair defense structure roof, a civil air defense structure bottom plate, a frame beam, a frame column, a hinged column foot foundation and a structural steel column, the construction work that the original civil air defense roof needs to be reinforced due to the fact that the foundation size of a newly-built foundation is too large due to rigid connection of the panel point and exceeds the panel point core area of the original civil air defense roof of a civil air defense part beam column is effectively avoided. According to the hinged column foot structure utilizing the built civil air defense panel point and the construction method, the use amount of concrete on the upper part of the core area of the civil air defense panel point is reduced, and the construction cost is effectively saved. According to the hinged column foot structure utilizing the built civil air defense panel point and the construction method, the structural bending moment of the panel point core area of the original civil air defense roof of the civil air defense roof beam column can be effectively released, the effect of the newly-built structure on an original structure is simplified, the stress state of theoriginal structure is clear, the load generated by the newly-built structure is reduced, and the workload of reinforcement caused by new building is reduced. According to the hinged column foot structure utilizing the built civil air defense panel point and the construction method, the vertical and horizontal shear capacity of the foundation is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of structures in new construction on the roof of civil air defense, and in particular relates to a hinged column base structure and a construction method utilizing existing civil air defense nodes. Background technique [0002] With the ever-changing demands on the functions of buildings, the number of construction projects is increasing year by year. Among them, there are many new buildings built on top of the existing civil air defense roof. How to deal with the mechanical transmission relationship between the new structural foundation and the existing civil air defense nodes? It is the focus and difficulty of design and construction. [0003] The conventional treatment method adopts the rigid connection of the steel structure column feet, the foundation form adopts the independent foundation with enlarged feet under the column, and the independent foundation and the civil air defense roof are reliably con...

AI Technical Summary

Problems solved by technology

[0004] 1. The column foot of the new structure is rigidly connected, which causes the bottom of the foundation to resist the unbalanced bending moment caused by the rigid connection while considering the horizontal shear force and vertical load, which affects the safety of the structure and the construction remains unchanged

[0005] 2. The base bending moment brought by the just-connected column feet will cause the size of the independent foundation to far exceed the core area of ​​the original civil air defense beam-column joint, resulting in increased reinforcement work for the newly built independent foundation and civil air defense roof

[0006] 3. Conventional nodes can transmit bending moment, shear force, and torque, which makes the core area of ​​the original node complex in force, which is unfavorable to the original concrete structure and affects the safety of the original structure

[0007] 4. The construction period is long, the design is simple, there are large safety hazards, and it is easy to cause quality accidents

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