Device for accurately positioning penetrating reinforcing steel bar in hole of perforated steel plate connecting piece

Abstract

The utility model belongs to the technical field of reinforced concrete positioning devices, and discloses a device for accurately positioning a penetrating reinforcing steel bar in a hole of a perforated steel plate connecting piece, which comprises a clamping part clamped on a steel plate, two opposite supporting plates are connected onto the clamping part, and a bearing plate is connected between the two supporting plates; the section of the bearing plate is in an arc shape matched with the outer diameter of a steel bar. A concrete pouring area is defined by the clamping part, the bearing plate and the two supporting plates. The utility model aims to realize the accurate positioning of the through steel bar before pouring, avoid displacement during pouring and ensure the pouring quality of the concrete tenon.

Description

Technical Field

[0001] The utility model relates to the technical field of reinforced concrete positioning devices, in particular to a device for accurately positioning through-going steel bars in holes of perforated steel plate connectors. Background Art

[0002] At present, the steel-concrete composite structure is a new type of structure developed on the basis of steel structure and reinforced concrete structure. In order to make the two different materials of steel and concrete work together, a shear connector needs to be set between the two. The perforated steel plate connector is a new type of connector used in steel-concrete composite structures. It has the advantages of large shear stiffness, high bearing capacity, and good ductility. Through steel bars are set in the openings of the steel plate to form reinforced concrete tenons with the poured concrete to resist the force between steel and concrete. The action mechanism of the perforated steel plate connector mainly has three aspects: first, it relies on the shear effect of the concrete tenon in the hole to resist the longitudinal shear force of the steel plate; second, it relies on the shear effect of the concrete tenon to bear the separation force between steel and concrete; third, it relies on the compression of the steel plate to bear the transverse shear force outside the surface. Therefore, if the axis of the through steel bar does not coincide with the axis of the opening, the shear strength will be greatly reduced.

[0003] However, the through-steel bars of existing perforated steel plate connectors are mainly positioned by setting a hook above the perforated steel bars or setting a pad under the perforated steel bars in the hole. However, the former may cause the perforated steel bars to shift during the pouring process, and the latter cannot ensure the pouring quality of the concrete tenon in the hole. Utility Model Content

[0004] The utility model aims to provide a device for accurately positioning through-steel bars in holes of perforated steel plate connectors, aiming to achieve accurate positioning of the through-steel bars before pouring, prevent displacement during pouring and ensure the quality of concrete tenon pouring.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The basic technical solution provided by the utility model is:

[0007] A device for accurately positioning a steel bar passing through a hole in a perforated steel plate connector, comprising a clamping portion clamped on the steel plate, the clamping portion being connected to two opposing support plates, a supporting plate being connected between the two support plates; the cross-sectional shape of the supporting plate being an arc that matches the outer diameter of the steel bar; the clamping portion, the supporting plate and the two support plates enclosing a concrete pouring area.

[0008] Principles and beneficial effects of basic technical solutions:

[0009] The clamping part is clamped at the position where the hole is opened on the steel plate, the axis of the supporting plate coincides with the axis of the hole on the steel plate, the steel bar is inserted into the hole on the steel plate and placed on the supporting plate, which can ensure that the axis of the steel bar coincides with the axis of the hole on the steel plate, thereby achieving accurate positioning before the through-steel is poured, and because the clamping part is fixed on the steel plate, it can ensure that the steel bar does not move during the pouring process; the concrete pouring area surrounded by the clamping part, the supporting plate and the two support plates, casts the positioning device together into a concrete tenon to improve the shear strength.

[0010] Preferably, the clamping portion comprises a bottom plate, and clamping plates are respectively connected to both sides of the bottom plate, the two clamping plates enclose a clamping area, and the two clamping plates are interference fit with the steel plate.

[0011] Through the above arrangement, the clamping part is composed of a base plate and clamping plates connected on both sides of the base plate, and the manufacturing process is simple; the two clamping plates are interference fit with the steel plate, and the device can be fixed by simply clamping the two clamping plates on both sides of the steel plate with external force, and the operation is simple.

[0012] Preferably, the material of the clamping plate is steel.

[0013] Through the above arrangement, the splint is made of steel, which increases the convenience of operation; and the steel is low in price and high in strength.

[0014] Preferably, both ends of the arc of the supporting plate are connected with connecting ears, and the connecting ears are arranged between the supporting plate and the support plate.

[0015] Through the above arrangement, the connection ears are arranged so that there is a gap between the bearing plate and the support plate, and concrete can be poured in the gap, thereby further ensuring the pouring quality.

[0016] Preferably, the clamping portion, the supporting plate, the bearing plate and the connecting ear are integrally formed.

[0017] Through the above arrangement, the manufacturing process is reduced and the connection force between the components is increased.

[0018] Preferably, the cross-sectional shape of the supporting plate is a semicircular arc.

[0019] Through the above arrangement, the semicircular support plate is easy to manufacture; and the support plate has sufficient contact area with the steel bars, thereby increasing the support stability of the steel bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a device for accurately positioning a through-steel bar in a hole of a perforated steel plate connector according to the utility model;

[0021] Figure 2It is a schematic diagram of a device for accurately positioning a through-steel bar in a hole of a perforated steel plate connector, and a connection structure of a perforated steel plate and a steel bar;

[0022] The names of the corresponding marks in the accompanying drawings are:

[0023] Positioning device 1, clamping plate 11, supporting plate 12, bearing plate 13, bottom plate 14, connecting ear 131, steel bar 2, steel plate 3. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings and implementation examples:

[0025] like Figure 1 to Figure 2 As shown, a device for accurately positioning a through-steel bar in a hole of a perforated steel plate connector comprises a clamping portion clamped on a steel plate 3, the clamping portion comprising a bottom plate 14, two sides of the bottom plate 14 are respectively connected with clamping plates 11 made of steel, the two clamping plates 11 form a clamping area, and the two clamping plates 11 are interference fit with the steel plate 3; two opposite support plates 12 are connected to the other two sides of the bottom plate 14, a support plate 13 is connected between the two support plates 12, and the axis of the support plate 13 is perpendicular to The plate surface of the clamping plate 11 and the supporting plate 13 have a cross-sectional shape that is a semicircular arc that matches the outer diameter of the steel bar 2. Both ends of the arc of the supporting plate 13 are connected with connecting ears 131, and the connecting ears 131 are arranged between the supporting plate 13 and the supporting plate 12, so that there is a gap between the supporting plate 13 and the supporting plate 12; the bottom plate 14, the supporting plate 13 and the two supporting plates 12 form a concrete pouring area, and the clamping part, the supporting plate 12, the supporting plate 13 and the connecting ears 131 are integrally formed.

[0026] The specific implementation process is as follows:

[0027] The clamping plate 11 of the positioning device 1 is clamped at the position where the hole is opened on the steel plate 3, and the connection between the bottom plate and the support plate 12 is in contact with the inner edge of the hole on the steel plate 3, so that the axis of the supporting plate 13 coincides with the axis of the hole on the steel plate 3, and the steel bar 2 is inserted into the hole on the steel plate 3 and placed on the supporting plate 13, so that the axis of the steel bar 2 coincides with the axis of the hole on the steel plate 3.

[0028] Among them, the clamping part is clamped at the position where a hole is opened on the steel plate 3, the axis of the supporting plate 13 coincides with the axis of the hole on the steel plate 3, the steel bar 2 is inserted into the hole on the steel plate 3 and placed on the supporting plate 13, which can ensure that the axis of the steel bar 2 coincides with the axis of the hole on the steel plate 3, thereby achieving accurate positioning before pouring the through steel bar 2, and because the clamping part is fixed on the steel plate 3, it can ensure that the steel bar 2 does not move during the pouring process; the clamping part, the supporting plate 13 and the two support plates 12 form a concrete pouring area, and the device can be cast together into a concrete tenon to improve the shear strength.

[0029] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical scheme or characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the technical scheme of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A device for accurately positioning a through-steel bar in a hole of a perforated steel plate connector, characterized in that: It comprises a clamping portion clamped on a steel plate (3), the clamping portion being connected to two opposing support plates (12), a support plate (13) being connected between the two support plates (12); the cross-sectional shape of the support plate (13) being an arc shape matching the outer diameter of the steel bar (2); the clamping portion, the support plate (13) and the two support plates (12) enclosing a concrete pouring area.

2. The device for accurately positioning a through-steel bar in a hole of a perforated steel plate connector according to claim 1, characterized in that: The clamping portion comprises a bottom plate (14), and clamping plates (11) are respectively connected to both sides of the bottom plate (14), the two clamping plates (11) enclose a clamping area, and the two clamping plates (11) are interference fit with the steel plate (3).

3. The device for accurately positioning a through-steel bar in a hole of a perforated steel plate connector according to claim 2, characterized in that: The material of the clamping plate (11) is steel.

4. The device for accurately positioning a through-steel bar in a hole of a perforated steel plate connector according to claim 1, characterized in that: Both ends of the arc of the supporting plate (13) are connected with connecting ears (131), and the connecting ears (131) are arranged between the supporting plate (13) and the support plate (12).

5. The device for accurately positioning a through-steel bar in a hole of a perforated steel plate connector according to claim 4, characterized in that: The clamping portion, the support plate (12), the bearing plate (13) and the connecting ear (131) are integrally formed.

6. The device for accurately positioning a through-steel bar in a hole of a perforated steel plate connector according to claim 1, characterized in that: The cross-sectional shape of the supporting plate (13) is a semicircular arc.

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