Prestressed concrete steel bar truss hollow close-splicing laminated two-way plate

Abstract

The invention relates to a prestressed concrete steel bar truss hollow close-splicing laminated two-way plate, and belongs to the technical field of civil engineering. The prestressed concrete steel bar truss hollow close-splicing laminated two-way plate comprises at least two prestressed truss prefabricated plates arranged in parallel, close-splicing seam structures and laminated layers, wherein each prestressed truss prefabricated plate comprises a prestressed concrete bottom plate and a steel bar truss, wherein the steel bar truss is arranged in the long edge direction of the prestressed concrete bottom plate, cavity blocks are evenly arranged on the plate face of the prestressed concrete bottom plate in the long edge direction of the prestressed concrete bottom plate at intervals, the close-splicing seam structures are arranged at the splicing seams of every two adjacent prestressed truss prefabricated plates, and the laminated layers are poured on the plate faces of the prestressed truss prefabricated plates. The prestressed truss prefabricated plates are adopted, the applicable span is large, the steel bar consumption is reduced, and the mechanical property is good; the close-splicing seams and a plate end support structure without extending longitudinal bars are adopted, and the construction efficiency is high; and the cavity blocks are adopted for forming cavities, the concrete consumption is reduced, and the self weight of the laminated plate is reduced.

Description

Technical field [0001] The present invention relates to a prestressed concrete reinforced truss, and a stacked bidirectional plate is a civil engineering technology. Background technique [0002] In the assembled concrete structure, the floor is multi-reinforced truss concrete laminated plate. When the floor is designed and settled in a bidirectional board, there is a multi-stroke tape pattern of "equivalent cast" practices in the project. The rearward tape seam requires the prefabricated steel-bearing steel bars, and the template is required under the rear pour, the production of components is inconvenient, and the production cost is increased, and the construction efficiency is reduced. In addition, for the plate end support, the project is often used in the project, and the production and construction of the member will also be inconvenient. [0003] For the largest floor, the reinforced truss concrete laminated plate is no longer applicable. On the one hand, due to the increa...

AI Technical Summary

Problems solved by technology

On the one hand, due to the increase of the span, the prefabricated floor is easy to crack during production, transportation, and construction; on the other hand, the increase of the span leads to an increase in the plate thickness and reinforcement, and the amount of material is large, which is not conducive to saving costs

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