River-crossing flexible pipe bridge structure
By using a flexible cross-river pipe bridge structure, which utilizes reinforced concrete materials composed of steel strand units and supporting beams, the problem of insufficient stiffness and stability of existing cross-river pipe bridges has been solved. This has enabled the arrangement of cross-river pipelines with high stiffness, stability, and economy, and facilitates maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-05-15
AI Technical Summary
Existing cross-river pipe bridge structures are insufficient in terms of stiffness and stability, and are not economical when transportation conditions are limited in mountainous areas. They are also inconvenient to maintain, which restricts the layout of cross-river pipelines.
The bridge adopts a flexible pipe bridge structure across the river, including a steel pipe support foundation, a main pipe bridge structure, and an anchoring device. It is composed of steel strand units and supporting beams, and uses reinforced concrete to improve rigidity and stability. It is also fixed by anchoring embedded parts to enhance durability.
It improves the rigidity and stability of cross-river pipe bridges, expands their application scope, reduces investment costs, facilitates maintenance, and overcomes terrain limitations.
Smart Images

Figure CN224243651U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of water conservancy engineering pipe bridge structure, specifically relating to a flexible pipe bridge structure across a river. Background Technology
[0002] When pipelines need to cross rivers, common methods include using pile-and-column pipe bridges, truss-type pipe bridges, utilizing the pipes themselves for crossing, and using existing bridges. Pile-and-column and truss-type pipe bridges offer high durability, but often involve significant investment, and are less economical in mountainous areas where transportation is limited. Using the pipes themselves as bridges is limited by the pipes' rigidity and strength, generally resulting in shorter spans and inconvenient maintenance. Using existing bridges for crossings requires the pipeline to be rerouted, increasing its length. Utility Model Content
[0003] The purpose of this invention is to provide a flexible pipe bridge structure for crossing rivers, which improves the rigidity and stability of the pipe bridge and expands the applicable scope of the pipe bridge.
[0004] The technical solution adopted in this utility model is a flexible pipe bridge structure spanning a river, including two steel pipe support foundations, which are symmetrically arranged on both banks of the river. Steel pipe supports are fixed to the top of both steel pipe support foundations. A main pipe bridge structure is connected between the two steel pipe supports. It also includes two anchoring devices, which are symmetrically arranged on both banks of the river. The two ends of the main pipe bridge structure pass through the steel pipe supports and are fixed to the two anchoring devices one by one.
[0005] The features of this utility model also include:
[0006] The steel pipe support foundation is a reinforced concrete steel pipe support foundation. The concrete strength of the steel pipe support foundation is not less than C20. Four steel pipe support connectors are pre-embedded at the top of both steel pipe support foundations. The four steel pipe support connectors are fixedly connected to the steel pipe supports.
[0007] The steel pipe support has a frame structure and includes four columns arranged vertically. The four columns are welded to the four steel pipe support connectors one by one. The four columns are fixedly connected by a first horizontal bar, a second horizontal bar, and a third horizontal bar, which are parallel to each other.
[0008] The main pipe bridge structure includes transverse steel strand units. Each end of the transverse steel strand unit is fixedly connected to two anchoring devices. Vertical steel strand units are fixedly connected to the transverse steel strand units. Support beams are horizontally fixed to the vertical steel strand units. The support beams are located between two steel pipe supports. A water supply steel pipe is fixedly connected to the upper part of the support beams. The water supply steel pipe passes through the gap between the second and third horizontal bars of the steel pipe supports.
[0009] The transverse steel strand unit includes two upper transverse steel strands, both ends of which pass through the first horizontal bar and are fixed to the anchoring device. It also includes two lower transverse steel strands, both ends of which pass through the steel pipe support and are fixed to the anchoring device. The two lower transverse steel strands are fixed to the bottom of the support beam.
[0010] The vertical steel strand unit includes several vertical steel strands, which are fixed in parallel to two upper horizontal steel strands. The vertical steel strands and the upper horizontal steel strands are arranged in a "T" shape. The other ends of the vertical steel strands are fixed to both sides of the supporting beam by connecting clips.
[0011] The supporting beam is composed of several square steel pipes, which are parallel to each other and are fixedly connected to several vertical steel strands in a one-to-one correspondence.
[0012] The water supply steel pipe is set perpendicularly to several square steel pipes. Several stirrups are wrapped around the outer wall of the water supply steel pipe, and both ends of the stirrups are fixed to the square steel pipes one by one by bolts.
[0013] The anchoring device includes an anchoring block, which is a reinforced concrete anchoring block with a concrete strength of not less than C20. Anchoring pre-embedded parts are pre-embedded on the anchoring block, and the upper and lower transverse steel strands are fixedly connected to the anchoring pre-embedded parts.
[0014] The outer surfaces of the steel pipe support connectors, columns, first horizontal bar, second horizontal bar, third horizontal bar, square steel pipes, and anchoring embedded parts are all coated with an anti-rust layer.
[0015] The beneficial effects of this utility model are:
[0016] The flexible pipe bridge structure for river crossings provided by this utility model consists of supporting beams and horizontal and vertical steel strand units. This facilitates construction, and the steel strands are ultimately fixed by anchoring pre-embedded parts, making the pipe bridge more robust. It allows for pipeline layout that overcomes terrain limitations, reduces investment, and facilitates pipeline maintenance. Simultaneously, it improves the rigidity and stability of the river-crossing pipe bridge, expanding its applicability. Attached Figure Description
[0017] Figure 1 This is a structural schematic diagram of the flexible pipe bridge structure for crossing rivers according to this utility model;
[0018] Figure 2 This is a schematic diagram of the cross-sectional profile of the steel pipe support foundation of the flexible pipe bridge structure for crossing rivers according to this utility model;
[0019] Figure 3 This is a schematic diagram of the cross-section of the flexible pipe bridge structure for crossing a river according to this utility model.
[0020] In the diagram, 1. Steel pipe support foundation, 11. Steel pipe support connector, 2. Steel pipe support, 21. Column, 22. First horizontal bar, 23. Second horizontal bar, 24. Third horizontal bar, 3. Horizontal steel strand unit, 31. Upper horizontal steel strand, 32. Lower horizontal steel strand, 4. Vertical steel strand unit, 41. Vertical steel strand, 5. Support beam, 51. Square steel pipe, 6. Water supply steel pipe, 61. Stirrup, 62. Bolt, 7. Anchor fixing block, 8. Anchor embedded part. Detailed Implementation
[0021] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0022] The flexible pipe bridge structure for crossing rivers provided by this utility model, such as Figure 1 As shown, the structure includes two steel pipe support foundations 1, symmetrically arranged on both banks of the river. Each foundation 1 has a steel pipe support 2 fixed to its top, and the main pipe bridge structure connects the two supports 2, facilitating the fixation of the main pipe bridge structure via the supports 2. It also includes two anchoring devices, symmetrically arranged on both banks of the river. The two ends of the main pipe bridge structure pass through the steel pipe supports 2 and are fixed to the two anchoring devices one-to-one, facilitating the fixation of the main pipe bridge structure via the anchoring devices. The steel pipe support foundations 1 are reinforced concrete foundations with a concrete strength of not less than C20, ensuring strong hardness and stability. Figure 2 As shown, each of the two steel pipe support foundations 1 has four steel pipe support connectors 11 pre-embedded at its top, and the four steel pipe support connectors 11 are fixedly connected to the steel pipe support 2; the steel pipe support 2 has a frame structure, including four columns 21, which are arranged vertically. The four columns 21 are welded to the four steel pipe support connectors 11 one by one, and the four columns 21 are fixedly connected to the first horizontal bar 22, the second horizontal bar 23 and the third horizontal bar 24 through the first horizontal bar 22, the second horizontal bar 23 and the third horizontal bar 24 are parallel to each other; the main pipe bridge structure includes a transverse steel strand unit 3, and the two ends of the transverse steel strand unit 3 are fixedly connected to two anchoring devices one by one. A vertical steel strand unit 4 is connected, and a supporting beam 5 is horizontally fixed to the vertical steel strand unit 4. The supporting beam 5 is located between two steel pipe supports 2. A water supply steel pipe 6 is fixed to the upper part of the supporting beam 5, and the water supply steel pipe 6 passes through the gap between the second horizontal bar 23 and the third horizontal bar 24 of the steel pipe support 2. The horizontal steel strand unit 3 includes two upper horizontal steel strands 31, both ends of which pass through the first horizontal bar 22. Both ends of the two upper horizontal steel strands 31 are fixed to the anchoring device. It also includes two lower horizontal steel strands 32, both ends of which pass through the steel pipe support 2 and are fixed to the anchoring device. The two lower horizontal steel strands 32 are fixed to the bottom of the supporting beam. Figure 3 As shown, the vertical steel strand unit 4 includes several vertical steel strands 41, which are parallelly fixed to two upper horizontal steel strands 31. The vertical steel strands 41 and the upper horizontal steel strands 31 are arranged in a "T" shape. The other ends of the vertical steel strands 41 are fixed to both sides of the supporting beam 5 by connecting clips. The supporting beam 5 is composed of several square steel pipes 51, which are parallel to each other and are fixed one-to-one with the vertical steel strands 41 for overall stability. The water supply steel pipe 6 is perpendicular to the square steel pipes 51. Several stirrups 61 are wrapped around the outer wall of the water supply steel pipe 6, and both ends of the stirrups 61 are bolted to the square steel pipes 51 by bolts 62. One-to-one fixed connection; the anchoring device includes an anchoring block 7, which is a reinforced concrete anchoring block with a concrete strength of not less than C20. Anchoring pre-embedded parts 8 are pre-embedded on the anchoring block 7. The upper transverse steel strand 31 and the lower transverse steel strand 32 are both fixed to the anchoring pre-embedded parts 8. The outer surfaces of the steel pipe support connector 11, column 21, first horizontal bar 22, second horizontal bar 23, third horizontal bar 24, square steel pipe 51 and anchoring pre-embedded parts 8 are all coated with an anti-rust layer, which facilitates rust prevention of the steel pipe support connector 11, column 21, first horizontal bar 22, second horizontal bar 23, third horizontal bar 24, square steel pipe 51 and anchoring pre-embedded parts 8 through the anti-rust layer, thereby increasing durability.
[0023] Example 1
[0024] The flexible pipe bridge structure for crossing the river proposed in this embodiment, such as Figure 1 As shown, it includes two steel pipe support foundations 1, which are symmetrically arranged on both banks of the river. Steel pipe supports 2 are fixed to the top of each of the two steel pipe support foundations 1. The main pipe bridge structure is connected between the two steel pipe supports 2. It also includes two anchoring devices, which are symmetrically arranged on both banks of the river. The two ends of the main pipe bridge structure pass through the steel pipe supports 2 and are fixed to the two anchoring devices one by one.
[0025] Example 2
[0026] The flexible pipe bridge structure for crossing the river proposed in this embodiment, such as Figure 1 As shown, the structure includes two steel pipe support foundations 1, symmetrically arranged on both banks of the river. Each foundation 1 is topped with a steel pipe support 2, and the main pipe bridge structure connects the two supports 2. It also includes two anchoring devices, symmetrically arranged on both banks of the river. The two ends of the main pipe bridge structure pass through the steel pipe supports 2 and are correspondingly fixed to the two anchoring devices. The steel pipe support foundations 1 are reinforced concrete foundations, and the concrete strength of the foundations 1 is not lower than C20. Figure 2As shown, four steel pipe support connectors 11 are pre-embedded on the top of each of the two steel pipe support foundations 1, and the four steel pipe support connectors 11 are fixedly connected to the steel pipe support 2.
[0027] Example 3
[0028] The flexible pipe bridge structure for crossing the river proposed in this embodiment, such as Figure 1 As shown, the structure includes two steel pipe support foundations 1, symmetrically arranged on both banks of the river. Each foundation 1 is topped with a steel pipe support 2, and the main pipe bridge structure connects the two supports 2. It also includes two anchoring devices, symmetrically arranged on both banks of the river. The two ends of the main pipe bridge structure pass through the steel pipe supports 2 and are correspondingly fixed to the two anchoring devices. The steel pipe support foundations 1 are reinforced concrete foundations, and the concrete strength of the foundations 1 is not lower than C20. Figure 2 As shown, four steel pipe support connectors 11 are pre-embedded at the top of each of the two steel pipe support foundations 1, and the four steel pipe support connectors 11 are fixedly connected to the steel pipe support 2; the steel pipe support 2 has a frame structure, and the steel pipe support 2 includes four columns 21, which are arranged vertically. The four columns 21 are welded to the four steel pipe support connectors 11 one by one, and the four columns 21 are fixedly connected by the first horizontal bar 22, the second horizontal bar 23 and the third horizontal bar 24. The first horizontal bar 22, the second horizontal bar 23 and the third horizontal bar 24 are parallel to each other.
[0029] Example 4
[0030] The flexible pipe bridge structure for crossing the river proposed in this embodiment, such as Figure 1 As shown, the structure includes two steel pipe support foundations 1, symmetrically arranged on both banks of the river. Each foundation 1 is topped with a steel pipe support 2, and the main pipe bridge structure connects the two supports 2. It also includes two anchoring devices, symmetrically arranged on both banks of the river. The two ends of the main pipe bridge structure pass through the steel pipe supports 2 and are correspondingly fixed to the two anchoring devices. The steel pipe support foundations 1 are reinforced concrete foundations, and the concrete strength of the foundations 1 is not lower than C20. Figure 2As shown, each of the two steel pipe support foundations 1 has four steel pipe support connectors 11 pre-embedded at its top, and the four steel pipe support connectors 11 are fixedly connected to the steel pipe support 2; the steel pipe support 2 has a frame structure, and includes four columns 21, which are arranged vertically. The four columns 21 are welded to the four steel pipe support connectors 11 one by one, and the four columns 21 are fixedly connected to the first horizontal bar 22, the second horizontal bar 23 and the third horizontal bar 24 through the first horizontal bar 22, the second horizontal bar 23 and the third horizontal bar 24 are parallel to each other; the main pipe bridge structure includes a transverse steel strand unit 3, and the two ends of the transverse steel strand unit 3 are fixedly connected to two anchoring devices one by one. A vertical steel strand unit 4 is fixedly connected, and a support beam 5 is horizontally fixed to the vertical steel strand unit 4. The support beam 5 is located between two steel pipe supports 2. A water supply steel pipe 6 is fixedly connected to the upper part of the support beam 5. The water supply steel pipe 6 passes through the gap between the second horizontal bar 23 and the third horizontal bar 24 of the steel pipe support 2. The horizontal steel strand unit 3 includes two upper horizontal steel strands 31. Both ends of the two upper horizontal steel strands 31 pass through the first horizontal bar 22. Both ends of the two upper horizontal steel strands 31 are fixedly connected to the anchoring device. It also includes two lower horizontal steel strands 32. Both ends of the two lower horizontal steel strands 32 pass through the steel pipe support 2 and are fixedly connected to the anchoring device. The two lower horizontal steel strands 32 are fixedly connected to the bottom of the support beam.
[0031] Example 5
[0032] The flexible pipe bridge structure for crossing the river proposed in this embodiment, such as Figure 1 As shown, the structure includes two steel pipe support foundations 1, symmetrically arranged on both banks of the river. Each foundation 1 is topped with a steel pipe support 2, and the main pipe bridge structure connects the two supports 2. It also includes two anchoring devices, symmetrically arranged on both banks of the river. The two ends of the main pipe bridge structure pass through the steel pipe supports 2 and are correspondingly fixed to the two anchoring devices. The steel pipe support foundations 1 are reinforced concrete foundations, and the concrete strength of the foundations 1 is not lower than C20. Figure 2As shown, each of the two steel pipe support foundations 1 has four steel pipe support connectors 11 pre-embedded at its top, and the four steel pipe support connectors 11 are fixedly connected to the steel pipe support 2; the steel pipe support 2 has a frame structure, including four columns 21, which are arranged vertically. The four columns 21 are welded to the four steel pipe support connectors 11 one by one, and the four columns 21 are fixedly connected to the first horizontal bar 22, the second horizontal bar 23 and the third horizontal bar 24 through the first horizontal bar 22, the second horizontal bar 23 and the third horizontal bar 24 are parallel to each other; the main pipe bridge structure includes a transverse steel strand unit 3, and the two ends of the transverse steel strand unit 3 are fixedly connected to two anchoring devices one by one. A vertical steel strand unit 4 is connected, and a supporting beam 5 is horizontally fixed to the vertical steel strand unit 4. The supporting beam 5 is located between two steel pipe supports 2. A water supply steel pipe 6 is fixed to the upper part of the supporting beam 5, and the water supply steel pipe 6 passes through the gap between the second horizontal bar 23 and the third horizontal bar 24 of the steel pipe support 2. The horizontal steel strand unit 3 includes two upper horizontal steel strands 31, both ends of which pass through the first horizontal bar 22. Both ends of the two upper horizontal steel strands 31 are fixed to the anchoring device. It also includes two lower horizontal steel strands 32, both ends of which pass through the steel pipe support 2 and are fixed to the anchoring device. The two lower horizontal steel strands 32 are fixed to the bottom of the supporting beam. Figure 3 As shown, the vertical steel strand unit 4 includes several vertical steel strands 41, which are fixedly connected in parallel to two upper horizontal steel strands 31. The vertical steel strands 41 and the upper horizontal steel strands 31 are arranged in a "T" shape. The other ends of the vertical steel strands 41 are fixedly connected to both sides of the support beam 5 by connecting buckles. The support beam 5 is composed of several square steel pipes 51, which are parallel to each other and are fixedly connected to the vertical steel strands 41 one by one.
[0033] Example 6
[0034] The flexible pipe bridge structure for crossing the river proposed in this embodiment, such as Figure 1 As shown, the structure includes two steel pipe support foundations 1, symmetrically arranged on both banks of the river. Each foundation 1 is topped with a steel pipe support 2, and the main pipe bridge structure connects the two supports 2. It also includes two anchoring devices, symmetrically arranged on both banks of the river. The two ends of the main pipe bridge structure pass through the steel pipe supports 2 and are correspondingly fixed to the two anchoring devices. The steel pipe support foundations 1 are reinforced concrete foundations, and the concrete strength of the foundations 1 is not lower than C20. Figure 2As shown, each of the two steel pipe support foundations 1 has four steel pipe support connectors 11 pre-embedded at its top, and the four steel pipe support connectors 11 are fixedly connected to the steel pipe support 2; the steel pipe support 2 has a frame structure, including four columns 21, which are arranged vertically. The four columns 21 are welded to the four steel pipe support connectors 11 one by one, and the four columns 21 are fixedly connected to the first horizontal bar 22, the second horizontal bar 23 and the third horizontal bar 24 through the first horizontal bar 22, the second horizontal bar 23 and the third horizontal bar 24 are parallel to each other; the main pipe bridge structure includes a transverse steel strand unit 3, and the two ends of the transverse steel strand unit 3 are fixedly connected to two anchoring devices one by one. A vertical steel strand unit 4 is connected, and a supporting beam 5 is horizontally fixed to the vertical steel strand unit 4. The supporting beam 5 is located between two steel pipe supports 2. A water supply steel pipe 6 is fixed to the upper part of the supporting beam 5, and the water supply steel pipe 6 passes through the gap between the second horizontal bar 23 and the third horizontal bar 24 of the steel pipe support 2. The horizontal steel strand unit 3 includes two upper horizontal steel strands 31, both ends of which pass through the first horizontal bar 22. Both ends of the two upper horizontal steel strands 31 are fixed to the anchoring device. It also includes two lower horizontal steel strands 32, both ends of which pass through the steel pipe support 2 and are fixed to the anchoring device. The two lower horizontal steel strands 32 are fixed to the bottom of the supporting beam. Figure 3 As shown, the vertical steel strand unit 4 includes several vertical steel strands 41, which are parallelly fixed to two upper horizontal steel strands 31. The vertical steel strands 41 and the upper horizontal steel strands 31 are arranged in a "T" shape. The other ends of the vertical steel strands 41 are fixed to both sides of the supporting beam 5 by connecting clips. The supporting beam 5 is composed of several square steel pipes 51, which are parallel to each other and are fixed to the vertical steel strands 41 one by one. The water supply steel pipe 6 is set perpendicularly to the square steel pipes 51, and the outer wall of the water supply steel pipe 6 is wrapped with several Each stirrup 61 has two ends fixed to a number of square steel pipes 51 one by one by bolts 62; the anchoring device includes an anchoring block 7, which is a reinforced concrete anchoring block with a concrete strength of not less than C20. Anchoring pre-embedded parts 8 are pre-embedded on the anchoring block 7, and the upper transverse steel strands 31 and the lower transverse steel strands 32 are fixed to the anchoring pre-embedded parts 8; the outer surfaces of the steel pipe support connector 11, column 21, first horizontal bar 22, second horizontal bar 23, third horizontal bar 24, square steel pipes 51 and anchoring pre-embedded parts 8 are all coated with an anti-rust layer.
Claims
1. A flexible pipe bridge structure spanning a river, characterized in that, It includes two steel pipe support foundations (1), which are symmetrically arranged on both banks of the river. The top of each of the two steel pipe support foundations (1) is fixed with a steel pipe support (2). The two steel pipe supports (2) are connected to a main pipe bridge structure. It also includes two anchoring devices, which are symmetrically arranged on both banks of the river. The two ends of the main pipe bridge structure pass through the steel pipe supports (2) and are fixed to the two anchoring devices one by one. The steel pipe support foundation (1) is a reinforced concrete steel pipe support foundation. The concrete strength of the steel pipe support foundation (1) is not lower than C20. Four steel pipe support connectors (11) are pre-embedded on the top of the two steel pipe support foundations (1). The four steel pipe support connectors (11) are fixedly connected to the steel pipe support (2). The steel pipe support (2) has a frame structure and includes four columns (21). The four columns (21) are arranged vertically. The four columns (21) are welded to the four steel pipe support connectors (11) one by one. The four columns (21) are fixedly connected by a first horizontal bar (22), a second horizontal bar (23) and a third horizontal bar (24). The first horizontal bar (22), the second horizontal bar (23) and the third horizontal bar (24) are parallel to each other. The main pipe bridge structure includes a transverse steel strand unit (3), with each end of the transverse steel strand unit (3) being fixedly connected to one of the two anchoring devices. The transverse steel strand unit is fixedly connected to a vertical steel strand unit (4), and the vertical steel strand unit (4) is horizontally fixedly connected to a supporting beam (5). The supporting beam (5) is located between the two steel pipe supports (2), and a water conveying steel pipe (6) is fixedly connected to the upper part of the supporting beam (5). The water conveying steel pipe (6) passes through the gap between the second horizontal bar (23) and the third horizontal bar (24) of the steel pipe support (2). The transverse steel strand unit (3) includes two upper transverse steel strands (31), both ends of which pass through the first crossbar (22). Both ends of the two upper transverse steel strands (31) are fixed to the anchoring device. It also includes two lower transverse steel strands (32), both ends of which pass through the steel pipe support (2) and are fixed to the anchoring device. The two lower transverse steel strands (32) are fixed to the bottom of the support beam. The vertical steel strand unit (4) includes several vertical steel strands (41), which are fixedly connected in parallel to two upper horizontal steel strands (31). The vertical steel strands (41) and the upper horizontal steel strands (31) are arranged in a "T" shape. The other end of the several vertical steel strands (41) is fixedly connected to both sides of the support beam (5) by connecting buckles. The supporting beam (5) is composed of several square steel pipes (51), which are parallel to each other and are fixedly connected to several vertical steel strands (41) in a one-to-one correspondence. The water supply steel pipe (6) is set perpendicularly to several square steel pipes (51). Several stirrups (61) are wrapped around the outer wall of the water supply steel pipe (6). Both ends of the stirrups (61) are fixed to the square steel pipes (51) one by one by bolts (62). The anchoring device includes an anchoring block (7), which is a reinforced concrete anchoring block. The concrete strength of the anchoring block (7) is not lower than C20. An anchoring pre-embedded parts (8) are pre-embedded on the anchoring block (7). The upper transverse steel strand (31) and the lower transverse steel strand (32) are both fixed to the anchoring pre-embedded parts (8). The outer surfaces of the steel pipe support connector (11), column (21), first horizontal bar (22), second horizontal bar (23), third horizontal bar (24), square steel pipe (51) and anchoring embedded part (8) are all coated with an anti-rust layer.