Profiled steel sheet suitable for steel and concrete composite floor system

Abstract

The utility model relates to the technical field of profiled steel sheets, in particular to a profiled steel sheet suitable for a steel and concrete composite floor system, which comprises a bottom plate and connecting vertical ribs, a plurality of connecting vertical ribs are horizontally arranged at the top of the bottom plate at equal intervals, and longitudinal ribs are fixedly arranged above the connecting vertical ribs. According to the utility model, one longitudinal rib is arranged at the top of each connecting vertical rib on the bottom plate, and the webs are uniformly lapped and connected to the connecting vertical ribs in a left-right staggered manner, so that the positive bending modulus and the negative bending modulus of the profiled steel sheet can be close to each other, materials can be fully utilized, and after the longitudinal ribs are unfolded, one side is zigzag, and the other side is straight; waste materials are prevented from being generated in production and manufacturing, channels are formed between the web plates which are arranged in a staggered mode, and the structural integrity can be enhanced after concrete is poured.

Description

Technical Field

[0001] The utility model relates to the technical field of corrugated steel plates, in particular to a corrugated steel plate suitable for a steel and concrete combined floor. Background Art

[0002] The steel-concrete composite slab formed by pouring concrete directly on the corrugated steel sheet is a composite structural slab, which consists of a thin steel sheet at the bottom and concrete material at the top. The bottom surface of the corrugated steel sheet is usually bent into a straight section to improve the appearance and facilitate later decoration. This composite slab combines the tensile resistance of steel and the compressive resistance of concrete, and has a high load-bearing capacity and ductility. However, due to the asymmetry of the cross-section of the corrugated steel sheet with a straight bottom surface, the positive and negative bending moduli are quite different, resulting in insufficient utilization of material strength. Utility Model Content

[0003] The utility model aims at the deficiencies in the prior art and provides the following technical solutions: a corrugated steel plate suitable for a steel and concrete composite floor, comprising a base plate and connecting vertical ribs, wherein a plurality of connecting vertical ribs are horizontally and equidistantly arranged on the top of the base plate, and longitudinal ribs are fixedly arranged above the connecting vertical ribs.

[0004] As an improvement of the above technical solution, the bottom plate is further provided with a plurality of groups of upwardly protruding trapezoidal grooves, and the trapezoidal grooves and the connecting vertical ribs are sequentially spaced from both side edges of the bottom plate to the center line.

[0005] As an improvement of the above technical solution, a seam folded edge and a seam buckled edge are respectively provided on both sides of the base plate, and the seam folded edge and the seam buckled edge are integrally formed with the base plate, and the distance between the seam folded edge and the adjacent connecting vertical ribs, the distance between the seam buckled edge and the adjacent connecting vertical ribs, and the distance between the trapezoidal pressing groove and the adjacent connecting vertical ribs are all equal.

[0006] As an improvement of the above technical solution, the longitudinal rib includes an upper triangular rib and a lower web. A plurality of webs arranged in a serrated shape are fixedly provided at the bottom of the triangular rib. The webs are evenly overlapped and connected to the top of the vertical ribs in an alternating manner. The supporting effect of the triangular rib is improved by the plurality of webs, and channels are formed between adjacent webs, thereby improving the bonding effect between the corrugated steel sheet and the concrete.

[0007] As an improvement of the above technical solution, the thickness of the longitudinal ribs is greater than the thickness of the bottom plate, so that the positive and negative bending moduli of the corrugated steel plate are close, and the number of the longitudinal ribs is equal to the number of the connecting vertical ribs.

[0008] The beneficial effects of the utility model are as follows: by arranging a longitudinal rib on the top of each connecting vertical rib on the bottom plate, and making the webs evenly overlap and connect to the connecting vertical ribs in a staggered manner on the left and right, the thickness of the longitudinal rib steel plate is greater than that of the bottom plate steel plate, so that the positive and negative bending moduli of the corrugated steel plate are close, and the material is more fully utilized; after the longitudinal ribs are unfolded, one side is serrated and the other side is straight, thus avoiding the generation of waste in production and manufacturing; channels are formed between the staggered webs, which not only facilitates the flow of wet concrete, but also enables the solidified concrete to be combined with the corrugated steel plate as a whole, thereby enhancing the integrity of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a cross-sectional view of the corrugated steel plate of the utility model;

[0010] Figure 2 This is the axonometric drawing of the corrugated steel plate of the utility model;

[0011] Figure 3 This is the axonometric drawing of the base plate;

[0012] Figure 4 Schematic diagram of longitudinal rib division.

[0013] Figure numerals: 1, bottom plate; 2, longitudinal rib; 11, trapezoidal groove; 12, connecting vertical rib; 13, seam folding edge; 14, seam buckle edge; 21, triangular rib; 22, web. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0015] See also Figure 1-3 As shown, the utility model provides a technical solution: a corrugated steel plate suitable for a steel and concrete composite floor, comprising a base plate 1, the bottom of the base plate 1 is coated with an anti-corrosion layer, which improves the anti-corrosion effect of the bottom of the base plate 1, the top of the base plate 1 is provided with a trapezoidal pressing groove 11, which improves the rigidity of the base plate 1, and the left and right sides of the base plate 1 are respectively provided with a seam folding edge 13 and a seam buckle edge 14; the base plate 1 is formed by rolling a thin steel plate, and the length is cut according to the project needs, and the typical length is between 2m and 8m.

[0016] See also Figure 1-2 The utility model provides a technical solution: a corrugated steel plate suitable for a steel and concrete composite floor, including longitudinal ribs 2, the thickness of the steel plate used to make the longitudinal ribs 2 is greater than the thickness of the bottom plate, the upper part of the longitudinal ribs 2 is a triangular rib 21 with a triangular cross-section, and the lower part of the longitudinal ribs 2 is a plurality of webs 22 arranged in a serrated shape; the longitudinal ribs 2 are formed by rolling and splitting a thin steel plate strip.

[0017] See also Figure 4 As described above, the thin steel plate strip is first rolled into a component with a dumbbell-shaped cross section, and then the component is divided into two longitudinal ribs 2 along the web according to a fold line path.

[0018] The bottom plate 1 and the longitudinal ribs 2 are connected as a whole through the connecting vertical ribs 12 and the webs 22 , and a plurality of webs 22 are staggeredly overlapped on the left and right sides of the connecting vertical ribs 12 by welding.

[0019] See also Figure 1-3 As shown, when multiple corrugated steel sheets are horizontally spliced, the seam buckle edge 14 is buckled onto the seam fold edge 13 of the adjacent corrugated steel sheets, and they are spliced ​​in sequence to achieve large-area paving.

[0020] After concrete is poured on the corrugated steel plate and a composite floor is formed, the concrete enters the cavity of the corrugated steel plate, and the relative movement between the corrugated steel plate and the concrete is constrained. The two materials can work together, and the longitudinal ribs 2 are embedded in the concrete. The lower surface of the base plate 1 is exposed, and an anti-corrosion layer is set on the lower surface of the base plate 1 by hot spraying zinc or hot spraying aluminum or spraying paint to ensure the durability of the corrugated steel plate. The steel plate of the utility model is buried in the concrete by concrete pouring, thereby supplementing the role of the reduced steel bars, and this corrugated steel plate concrete composite plate is more solid and not easy to fall off, and by optimizing the spatial structure of the corrugated steel plate, the utilization rate of steel is improved, thereby achieving the effect of saving construction costs.

[0021] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. A corrugated steel plate suitable for steel and concrete composite floor, characterized in that: It comprises a bottom plate (1) and connecting vertical ribs (12), wherein a plurality of connecting vertical ribs (12) are horizontally and equidistantly arranged on the top of the bottom plate (1), and longitudinal ribs (2) are fixedly arranged above the connecting vertical ribs (12).

2. The corrugated steel sheet suitable for steel and concrete composite floor according to claim 1, characterized in that: The bottom plate (1) is also provided with a plurality of groups of upwardly protruding trapezoidal grooves (11), wherein the trapezoidal grooves (11) and the connecting vertical ribs (12) are sequentially spaced from both sides of the bottom plate (1) to the center line.

3. The corrugated steel sheet suitable for steel and concrete composite floor according to claim 2, characterized in that: A seam folding edge (13) and a seam buckle edge (14) are respectively provided on both sides of the bottom plate (1), and the seam folding edge (13) and the seam buckle edge (14) are integrally formed with the bottom plate (1), and the distance between the seam folding edge (13) and the adjacent connecting vertical rib (12), the distance between the seam buckle edge (14) and the adjacent connecting vertical rib (12), and the distance between the trapezoidal pressed groove (11) and the adjacent connecting vertical rib (12) are all equal.

4. The corrugated steel sheet suitable for steel and concrete composite floor according to claim 1, characterized in that: The longitudinal rib (2) comprises an upper triangular rib (21) and a lower web (22); a plurality of webs (22) arranged in a zigzag shape are fixedly provided at the bottom of the triangular rib (21); the webs (22) are evenly overlapped and connected to the top of the connecting vertical rib (12) in a staggered manner.

5. The corrugated steel sheet suitable for steel and concrete composite floor according to claim 1, characterized in that: The thickness of the longitudinal ribs (2) is greater than the thickness of the bottom plate (1), and the number of the longitudinal ribs (2) is equal to the number of the connecting vertical ribs (12).

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