A two-way laminated floor slab of honeycomb hole profiled steel plate

Abstract

The invention provides a honeycomb pore profiled steel sheet bidirectional overlapped floor slab, and belongs to the field of buildings. The honeycomb pore profiled steel sheet bidirectional overlapped floor slab is formed by pouring a concrete layer after a plurality of honeycomb pore profiled steel sheet-concrete prefabricated bottom plates are spliced. The honeycomb pore profiled steel sheet-concrete prefabricated bottom plates comprise honeycomb pore profiled steel sheets with flanges on the two sides and concrete bottom plates. The honeycomb pore profiled steel sheets are wave-shaped thin steel plates, and a plurality of evenly-distributed hollow-out holes are formed in the honeycomb pore profiled steel sheets. The lower flanges of the honeycomb pore profiled steel sheets and the concrete bottom plates are poured into a whole. The lower flanges of the honeycomb pore profiled steel sheets exceed the edges of the concrete bottom plates. Beveled edges tilting downwards are formed in the two side edges of the concrete bottom plates at the splicing positions. The honeycomb pore profiled steel sheet bidirectional overlapped floor slab has the characteristics of being low in dead weight, high in strength, easy to construct and free of formwork erecting, and effectively solves the splicing problem of the overlapped floor slab. Horizontal reinforced bars penetrate through holes of the profiled steel sheets so that the structural characteristics of the bidirectional floor slab can be achieved, the height of structural layers can be effectively reduced, dead weight is reduced, and good economic benefits are achieved.

Description

technical field [0001] The invention relates to a two-way laminated floor slab, in particular to a two-way laminated floor slab of honeycomb hole profiled steel plate used in the construction field. Background technique [0002] Composite floor slab has the characteristics of fast construction, free formwork, factory prefabrication, and high degree of mechanization. At the same time, it has high overall rigidity and good seismic performance. It is a floor form with a high degree of industrialization. [0003] Among the existing laminated floors, they are mainly divided into ordinary flat prestressed concrete laminated floors, ribbed prestressed concrete laminated floors and reinforced truss laminated floors. [0004] Ordinary flat-plate prestressed concrete laminated floor slabs usually have thicker prefabricated bottom slabs, larger dead weight, and smaller spans. Set up temporary supports when the span is large. Most of the prefabricated bottom slabs are equipped with pr...

AI Technical Summary

Problems solved by technology

However, the direction of setting the prestressing force and the direction of laying out ordinary steel bars horizontally have a large difference in stiffness between the two directions, and it is difficult to achieve the mechanical characteristics of the cast-in-place two-way floor slab, which is not conducive to the overall seismic resistance of the floor slab.

And it is more difficult to open holes on the ribs

[0006] Reinforced truss floors generally have a small span in practical applications. If the span is increased, the height of the truss will be required to increase, resulting in a larger thickness of the laminated floor and an increase in the overall cost.

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