Large-diameter non-prestressed concrete cylinder pipe

Abstract

The utility model relates to the technical field of pipes, in particular to a large-diameter non-prestressed steel cylinder concrete pipe which comprises a steel cylinder, an outer concrete layer, an inner concrete layer, a plurality of outer steel bars, a plurality of first inner steel bars, a plurality of second inner steel bars, a bell mouth and a spigot. The concrete pipes can be connected, the steel pipes support the structure of the whole concrete pipes, the outer concrete layer wraps the multiple outer steel bars, the inner concrete layer wraps and protects the multiple first inner steel bars and the multiple second inner steel bars, and through the multiple outer steel bars, the multiple first inner steel bars and the multiple second inner steel bars, the concrete pipes can be connected. And a three-layer steel reinforcement framework structure is formed on the outer side and the inner side of the steel cylinder, so that the structural strength is effectively guaranteed, the crack resistance of the pipeline is greatly improved, and cracks of inner wall concrete caused by stress and strain are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pipes, in particular to a large-diameter non-prestressed steel cylinder concrete pipe. Background Art

[0002] In liquid transportation, steel cylinder concrete pipe is needed for transportation. A PCCP single-layer steel skeleton structure is set on the outside of the steel cylinder to reinforce and support the concrete pipe.

[0003] However, in the above-mentioned prior art, the steel frame structure of the PCCP single layer is set on the outside, which cannot effectively resist the cracking of the pipeline, and cracks will appear on the inner wall of the pipeline due to stress and strain of the concrete. Utility Model Content

[0004] The utility model aims to provide a large-diameter non-prestressed steel cylinder concrete pipe, which solves the problem in the prior art that a single-layer steel frame structure of PCCP is arranged on the outside, which cannot provide effective pipeline crack resistance and cracks will appear on the inner wall of the pipeline due to stress and strain.

[0005] To achieve the above-mentioned purpose, the utility model provides a large-diameter non-prestressed steel cylinder concrete pipe, including a steel cylinder, an outer concrete layer, an inner concrete layer, multiple outer steel bars, multiple first inner steel bars, multiple second inner steel bars, a socket and a spigot, the outer concrete layer and the inner concrete layer are both fixedly connected to the steel cylinder and are respectively located on the outer wall and inner wall of the steel cylinder, the outer concrete layer and the inner concrete layer both have grooves, the multiple outer steel bars are fixedly connected to the steel cylinder and are sequentially distributed around the outer wall of the steel cylinder, the multiple outer steel bars are located inside the corresponding grooves, the multiple first inner steel bars and the multiple second inner steel bars are sequentially arranged around the inner wall of the steel cylinder and are located inside the corresponding grooves, the socket and the spigot are both fixedly connected to the steel cylinder and are symmetrically distributed at both ends of the steel cylinder.

[0006] Among them, the large-diameter non-prestressed steel tube concrete pipe also includes a plurality of external steel reinforcement bars, both ends of the plurality of external steel reinforcement bars are respectively fixedly connected to the corresponding external steel bars, and the plurality of external steel reinforcement bars are respectively located between two corresponding external steel bars.

[0007] Among them, the large-diameter non-prestressed steel tube concrete pipe also includes multiple first internal steel reinforcement bars, both ends of the multiple first internal steel reinforcement bars are respectively fixedly connected to the corresponding first internal steel bars, and the multiple first internal steel reinforcement bars are respectively located between the corresponding two first internal steel bars.

[0008] Among them, the large-diameter non-prestressed steel tube concrete pipe also includes multiple second internal steel reinforcement bars, both ends of the multiple second internal steel reinforcement bars are respectively fixedly connected to the corresponding second internal steel bars, and the multiple second internal steel reinforcement bars are respectively located between the corresponding two second internal steel bars.

[0009] Among them, the large-diameter non-prestressed steel cylinder concrete pipe also includes a plurality of connecting strips, both ends of which are respectively fixedly connected to the corresponding first inner steel bars and the second inner steel bars, and the plurality of connecting strips are distributed around the inside of the corresponding grooves.

[0010] The utility model discloses a large-diameter non-prestressed steel cylinder concrete pipe, which can connect concrete pipes through the cooperation of the socket and the spigot, the steel pipe supports the structure of the entire concrete pipe, the outer concrete layer wraps the plurality of outer steel bars, the inner concrete layer wraps and protects the plurality of first inner steel bars and the plurality of second inner steel bars, and a three-layer steel skeleton structure is formed on the outside and inside of the steel cylinder through the plurality of outer steel bars, the plurality of first inner steel bars and the plurality of second inner steel bars, thereby effectively ensuring the structural strength, greatly improving the crack resistance of the pipeline, and reducing cracks caused by stress and strain in the inner wall concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0012] Figure 1 It is an overall structural schematic diagram of the utility model.

[0013] Figure 2 The utility model Figure 1 AA line section view.

[0014] Figure 3 The utility model Figure 2 BB line cross-sectional view.

[0015] 1-steel cylinder, 2-outer concrete layer, 3-inner concrete layer, 4-outer steel bar, 5-first inner steel bar, 6-second inner steel bar, 7-socket, 8-socket, 9-groove, 10-outer steel bar reinforcement bar, 11-first inner steel bar reinforcement bar, 12-second inner steel bar reinforcement bar, 13-connecting bar. DETAILED DESCRIPTION

[0016] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0017] See also Figures 1 to 3 ,in Figure 1 It is a schematic diagram of the overall structure of the utility model. Figure 2 The utility model Figure 1 AA line section view, Figure 3 The utility model Figure 2 BB line cross-sectional view. The utility model provides a large-diameter non-prestressed steel cylinder concrete pipe, comprising a steel cylinder 1, an outer concrete layer 2, an inner concrete layer 3, a plurality of outer steel bars 4, a plurality of first inner steel bars 5, a plurality of second inner steel bars 6, a socket 7 and a spigot 8, the outer concrete layer 2 and the inner concrete layer 3 are both fixedly connected to the steel cylinder 1, and are respectively located on the outer wall and the inner wall of the steel cylinder 1, the outer concrete layer 2 and the inner concrete layer 3 are both provided with a groove 9, a plurality of the outer steel bars 4 are both fixedly connected to the steel cylinder 1, and are sequentially distributed around the outer wall of the steel cylinder 1, a plurality of the outer steel bars 4 are each located inside the corresponding groove 9, a plurality of the first inner steel bars 5 and a plurality of the second inner steel bars 6 are sequentially arranged around the inner wall of the steel cylinder 1, and are each located inside the corresponding groove 9, the socket 7 and the spigot 8 are both fixedly connected to the steel cylinder 1, and are symmetrically distributed at both ends of the steel cylinder 1.

[0018] In this embodiment, the concrete pipe can be connected by cooperating with the socket 7 and the plug 8, the steel pipe supports the structure of the entire concrete pipe, the outer concrete layer 2 wraps the multiple outer steel bars 4, and the inner concrete layer 3 wraps and protects the multiple first inner steel bars 5 and the multiple second inner steel bars 6. Through the multiple outer steel bars 4, the multiple first inner steel bars 5 and the multiple second inner steel bars 6, a three-layer steel skeleton structure is formed on the outside and inside of the steel cylinder 1, which effectively ensures the structural strength, greatly improves the crack resistance of the pipeline, and reduces cracks in the inner wall concrete caused by stress and strain.

[0019] Furthermore, the large-diameter non-prestressed steel tube concrete pipe also includes a plurality of external steel reinforcement strips 10, both ends of the plurality of external steel reinforcement strips 10 are respectively fixedly connected to the corresponding external steel bars 4, and the plurality of external steel reinforcement strips 10 are respectively located between the corresponding two external steel bars 4.

[0020] In this embodiment, the outer steel reinforcement bar 10 connects the plurality of outer steel bars 4 to further enhance the connection stability and skeleton strength of the outer steel skeleton.

[0021] Furthermore, the large-diameter non-prestressed steel tube concrete pipe also includes a plurality of first internal steel reinforcement strips 11, both ends of the plurality of first internal steel reinforcement strips 11 are respectively fixedly connected to the corresponding first internal steel bars 5, and the plurality of first internal steel reinforcement strips 11 are respectively located between the corresponding two first internal steel bars 5.

[0022] In this embodiment, the first inner steel reinforcement strip 11 connects the plurality of first inner steel bars 5 to further enhance the connection stability and skeleton strength of the inner steel skeleton.

[0023] Furthermore, the large-diameter non-prestressed steel tube concrete pipe also includes a plurality of second internal steel reinforcement strips 12, both ends of the plurality of second internal steel reinforcement strips 12 are respectively fixedly connected to the corresponding second internal steel bars 6, and the plurality of second internal steel reinforcement strips 12 are respectively located between the corresponding two second internal steel bars 6.

[0024] In this embodiment, the second inner steel reinforcement bar 12 connects the plurality of second inner steel bars 6 to further enhance the connection stability and the strength of the inner steel bar skeleton.

[0025] Furthermore, the large-diameter non-prestressed steel cylinder concrete pipe also includes a plurality of connecting strips 13, both ends of the plurality of connecting strips 13 are respectively fixedly connected to the corresponding first inner steel bars 5 and the second inner steel bars 6, and the plurality of connecting strips 13 are distributed around the inside of the corresponding grooves 9.

[0026] In this embodiment, the connecting bar 13 connects the first inner steel bar 5 and the second inner steel bar 6 to strengthen the strength of the two inner steel bar skeleton structures.

[0027] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A large-diameter non-prestressed steel tube concrete pipe, characterized in that: It includes a steel cylinder, an outer concrete layer, an inner concrete layer, multiple outer steel bars, multiple first inner steel bars, multiple second inner steel bars, a socket and a plug. The outer concrete layer and the inner concrete layer are fixedly connected to the steel cylinder and are respectively located on the outer wall and inner wall of the steel cylinder. The outer concrete layer and the inner concrete layer have grooves. The multiple outer steel bars are fixedly connected to the steel cylinder and are sequentially distributed around the outer wall of the steel cylinder. The multiple outer steel bars are located inside the corresponding grooves. The multiple first inner steel bars and the multiple second inner steel bars are sequentially arranged around the inner wall of the steel cylinder and are located inside the corresponding grooves. The socket and the plug are fixedly connected to the steel cylinder and are symmetrically distributed at both ends of the steel cylinder.

2. The large-diameter non-prestressed steel cylinder concrete pipe according to claim 1, characterized in that: The large-diameter non-prestressed steel tube concrete pipe also includes a plurality of external steel reinforcement bars, both ends of which are fixedly connected to the corresponding external steel bars, and the plurality of external steel reinforcement bars are respectively located between two corresponding external steel bars.

3. The large-diameter non-prestressed steel cylinder concrete pipe according to claim 2, characterized in that: The large-diameter non-prestressed steel tube concrete pipe also includes a plurality of first inner steel reinforcement bars, both ends of which are respectively fixedly connected to the corresponding first inner steel bars, and the plurality of first inner steel reinforcement bars are respectively located between two corresponding first inner steel bars.

4. The large-diameter non-prestressed steel cylinder concrete pipe according to claim 3, characterized in that: The large-diameter non-prestressed steel tube concrete pipe also includes a plurality of second inner steel reinforcement bars, both ends of which are respectively fixedly connected to the corresponding second inner steel bars, and the plurality of second inner steel reinforcement bars are respectively located between two corresponding second inner steel bars.

5. The large-diameter non-prestressed steel cylinder concrete pipe according to claim 4, characterized in that: The large-diameter non-prestressed steel cylinder concrete pipe also includes a plurality of connecting strips, both ends of which are respectively fixedly connected to the corresponding first inner steel bars and the second inner steel bars, and the plurality of connecting strips are distributed around the inside of the corresponding grooves.

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