Construction method for prefabricated frame structure system

Abstract

The invention discloses a construction method for a prefabricated frame structure system, and belongs to the technical field of prefabricated buildings. The construction method comprises the following steps that a plurality of prefabricated concrete columns are arranged at intervals, and grouting sleeves are arranged at the bottoms of the prefabricated concrete columns; reserved reinforcing steel bars corresponding to the grouting sleeves are pre-embedded at the tops of the prefabricated concrete columns, specifically, prefabricated beam column joints are hoisted, each prefabricated beam column joint comprises a hoop plate, a penetrating steel beam and stiffening ribs, the prefabricated beam column joints are wholly hoisted to the positions above the prefabricated concrete columns, and the reserved reinforcing steel bars penetrate through the interiors of the hoop plates in the vertical direction; then the outer walls of the hoop plates are connected to the prefabricated concrete columns together through fasteners and limiting plates; frame beams and secondary beams are mounted; a steel bar truss floor support plate is mounted; and floor concrete is poured. The construction method has the advantages of beam penetration and column penetration; and components are fully prefabricated, assembling is simple, and on-site construction and mounting are convenient.

Description

technical field [0001] The invention belongs to the technical field of prefabricated buildings, and in particular relates to a construction method of a prefabricated frame structure system. Background technique [0002] With the continuous development of building structure forms, more and more new hybrid frame structures have emerged. Reinforced concrete column-steel beam composite frame structure (reinforced concrete column-steel beam, referred to as RCS composite frame structure) combines the advantages of traditional steel structure and reinforced concrete frame structure, so it is more and more widely used in engineering applications. Compared with the steel structure, it has the characteristics of saving steel and increasing the rigidity of the building. At the same time, it has higher stability and durability; specialty. In order to ensure reliable force transmission between reinforced concrete columns and steel beams, a reasonable structural form is very important. ...

AI Technical Summary

Problems solved by technology

However, the structure of the existing column-through joints is very complicated and requires high construction technology, and the direct transmission of force is blocked due to the cut-off of the flange of the steel beam. Although various structural measures can be used to make up for it, it cannot Avoid changing the direction of force propagation, after all, it still violates the law that force should be transmitted according to the shortest path

[0004] In addition, at present, there are mainly two ways to connect the prefabricated external wall panels to the main structure: one is to use line support connection to connect the steel bars and then pour concrete. The external wall panels connected by line support are easy to collide with the main structure steel bars. And when hanging on the frame beam, the connecting steel bars cannot completely avoid the beam end densification area, which has a great influence on the calculated stiffness of the main structure, and the expected safety and reliability cannot be achieved; the second is to use point support connection, which is a flexible connection. However, in the prior art, the external wall panels connected by point support are not only complicated in structure, but also complicated in construction.

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