Net-shaped sling tied arch bridge with stand column structure

Abstract

The utility model provides a net-shaped sling tied arch bridge with a stand column structure, which comprises a bridge body and a plurality of pier columns, and each pier column comprises a supporting part and a support; an arc-shaped surface is arranged at the joint of any two adjacent side surfaces in the supporting part; and the support and the supporting part are matched with each other to form a U-shaped structure. A bridge body and a main arch are arranged on the support, the slings are connected with the main arch and the bridge body, and the multiple slings are arranged in a staggered mode to form a net-shaped sling structure. The supporting part adopts the arc-shaped surface, so that water flow can bypass the pier more smoothly, the resistance of the pier to the water flow is reduced, and scouring and erosion to the pier foundation are reduced; the U-shaped structure can provide larger transverse stability, the horizontal load resisting capacity of the pier is enhanced, the anti-overturning capacity of the pier can be effectively improved through the wall bodies on the two sides of the U-shaped structure, and the structure is more stable. And the load is more uniformly distributed on the whole structure through the net-shaped slings, so that the risk of overhigh local stress is reduced, and the service life of the bridge is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of bridge design technology, and in particular to a mesh cable-stayed arch bridge with a column structure. Background Technology

[0002] With socio-economic development, the flow of people and goods is becoming increasingly frequent, placing higher demands on the carrying capacity and traffic efficiency of transportation infrastructure. There is a need to build bridges with longer spans and greater strength and durability to cross natural obstacles such as rivers, lakes, and seas to meet the ever-growing transportation demands.

[0003] Rectangular cross-section column structures are relatively simple to construct and easy to make and install formwork, so they are more widely used in real life.

[0004] However, the relevant technology has at least one of the following problems: when subjected to the impact of rapid water flow, the corners of the rectangular cross-section column structure are subjected to a stronger impact than other parts, making the corners prone to wear or erosion, resulting in damage to the column structure, reducing the structural strength of the column structure, and affecting the service life of the bridge.

[0005] When subjected to the impact of rapid water flow, the corners of rectangular cross-section columns are subjected to a stronger impact than other parts, making them prone to wear or erosion. This damages the column structure, reduces its structural strength, and affects the service life of the bridge. Summary of the Invention

[0006] The purpose of this invention is to provide a mesh cable-stayed arch bridge with a column structure.

[0007] The purpose of this utility model is achieved as follows:

[0008] A mesh cable-stayed arch bridge with a column structure is characterized by comprising: a bridge body; multiple piers located below the bridge body to support it; the multiple piers being evenly distributed at equal intervals along the length of the bridge body; each pier including a support portion and a bearing; wherein the connection between any two adjacent sides of the support portion is provided with an arc-shaped surface; the support portion and the bearing on the support portion cooperate to form a U-shaped structure, and the opening direction of the U-shaped structure is away from the bridge body.

[0009] Compared with existing technologies, the technical effects achieved by this solution are as follows: Compared with the rectangular cross-section of the column structure in related technologies, this invention sets the connection angle of any two adjacent sides of the pier to an arc surface. The arc surface design allows water flow to bypass the pier more smoothly, reducing the resistance of the pier to the water flow. Furthermore, the eddies and turbulence generated by the water flow at the pier can cause erosion of the riverbed. The arc surface design can mitigate these phenomena, thereby reducing erosion and damage to the pier foundation. At the same time, the U-shaped structure on the pier provides greater lateral stability, enhances the pier's ability to resist horizontal loads, and the side walls of the U-shaped structure can effectively increase the pier's anti-overturning capacity, making the structure more stable. It can also guide the water flow and reduce the impact of the water flow on the pier.

[0010] In one embodiment of this utility model, the support is located between the support part and the bridge body, and the support is provided with a mating groove. The bridge body is erected in the mating groove, which is the first connection area of ​​the top surface of the pier column.

[0011] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: the support transfers the vertical load of the bridge superstructure to the support, ensuring that the load can be safely transferred to the foundation and maintaining the stability of the bridge structure; and the setting of the matching groove can limit the bridge body and prevent the bridge body from moving relative to the support.

[0012] In one embodiment of this utility model, the support includes: a first support wall and a second support wall disposed opposite to each other; wherein, the U-shaped structure is composed of the first support wall, the second support wall and a support.

[0013] Compared with existing technologies, the technical effects achieved by adopting this technical solution are: the U-shaped structure can better distribute the load, improve the bearing capacity of the piers, and adapt to the design requirements of bridges with larger spans and heavier loads.

[0014] In one embodiment of this utility model, the support includes: a base, a first stop wall, and a second stop wall; the first stop wall and the second stop wall are arranged opposite to each other, and the first stop wall and the second stop wall are respectively located on the top left and right sides of the base, and on the side closer to the support part; wherein, the mating groove is formed by the base, the first stop wall, and the second stop wall.

[0015] In one embodiment of this utility model, the support further includes an anchoring structure and multiple anti-vibration blocks; the anchoring structure is located between the base and the bridge body and connects the bridge body and the base; multiple anti-vibration blocks are located on the side of the first stop wall near the bridge body, and / or, multiple anti-vibration blocks are located on the side of the second stop wall near the bridge body.

[0016] Compared with existing technologies, the technical effects achieved by this solution are as follows: the anchoring structure is located between the bearing and the bridge body, ensuring a proper connection between the bridge's superstructure and substructure. The use of the anchoring structure makes the bearing more stable and reliable during installation and use; the anti-vibration blocks are used to prevent the bridge from shifting due to vibration or other reasons.

[0017] In one embodiment of this utility model, the bridge body is provided with at least one main arch, and both ends of the main arch rest on the piers.

[0018] Compared with existing technologies, the technical effects achieved by this solution are as follows: the arch structure has excellent mechanical properties, capable of converting vertical loads into compressive stress along the arch curve, making the structure more stable and safer. The main arch distributes the load of the bridge superstructure to the piers at both ends through the shape of the arch, thereby reducing the stress on the bridge deck and the central structure.

[0019] In one embodiment of this utility model, multiple cross braces connect any two adjacent main arches.

[0020] Compared with existing technologies, the technical effects achieved by this technical solution are as follows: the use of spatial truss bracing can effectively provide lateral support, prevent the main arch from undergoing lateral deformation or tilting under load, thereby improving the overall stiffness and stability of the bridge. Furthermore, the arrangement of multiple cross braces can effectively distribute the load, making the load distribution between the main arches more uniform and reducing the deformation of individual main arches.

[0021] In one embodiment of this utility model, multiple suspension cables are provided on the main arch; the suspension cables connect the main arch and the bridge body; and the multiple suspension cables are interwoven to form a mesh suspension cable structure.

[0022] Compared with existing technologies, the technical effects achieved by adopting this technical solution are: the suspension cables can evenly distribute the load on the bridge body to the main arch, thereby avoiding excessive pressure on a single part and reducing local stress concentration.

[0023] In one embodiment of this utility model, a connecting device is provided on the bridge body; the connecting device has a first opening on the side near the main arch, and the lower end of the sling is installed in the connecting device through the first opening; the connecting device and the sling are detachably connected; wherein, the sling, cross brace, main arch and connecting device are all coated with anti-corrosion and anti-rust material.

[0024] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: Compared with the traditional method of using bolts to connect the slings and the bridge body, the present invention sets a connecting device on the bridge body and adopts a detachable method for the slings and the connecting device. When it is necessary to replace the slings, it is only necessary to remove the slings from the connecting device without operating the bridge body, thus reducing direct damage to the bridge body.

[0025] By adopting the technical solution of this utility model, the following technical effects can be achieved:

[0026] (1) The connection between any two adjacent sides of the support is made of arc surface, which can make the water flow more smoothly bypass the pier, reduce the resistance of the pier to the water flow, and reduce the scouring and erosion of the pier foundation; the U-shaped structure design can provide greater lateral stability, enhance the pier's ability to resist horizontal loads, and the walls on both sides of the U-shaped structure can effectively increase the pier's anti-overturning ability, making the structure more stable.

[0027] (2) Through its unique mesh layout, the suspenders provide better performance in terms of wind and earthquake resistance, reduce the vibration and deformation of the bridge under harsh environmental conditions, and increase the stability and reliability of the overall structure;

[0028] (3) The mesh suspension cable distributes the load more evenly across the entire structure, reducing the risk of excessive local stress and extending the service life of the bridge. Attached Figure Description

[0029] Figure 1 A structural schematic diagram of a mesh cable-stayed arch bridge with a column structure provided by this utility model;

[0030] Figure 2 A front view of a mesh cable-stayed arch bridge with a column structure provided by this utility model;

[0031] Figure 3 Right view of a mesh cable-stayed arch bridge with a column structure provided by this utility model;

[0032] Figure 4 for Figure 2 A cross-sectional view along the AA direction;

[0033] Figure 5 This is a structural diagram of the detachable base and sling provided by this utility model;

[0034] Figure 6 for Figure 4 A cross-sectional view along the BB direction;

[0035] Figure 7 for Figure 4 A schematic diagram showing the connection between the connecting device and the sling;

[0036] Figure 8 for Figure 3 A schematic diagram of the anchoring structure shown in the figure;

[0037] Explanation of reference numerals in the attached figures:

[0038] 100. Column structure; 10. Bridge body; 20. Pier; 21. Support part; 211. First support wall; 212. Second support wall; 213. U-shaped structure; 22. Support; 221. Base; 222. First stop wall; 223. Second stop wall; 23. Mating groove; 24. Anchoring structure; 25. Arc-shaped surface; 26. First connection area; 30. Main arch; 40. Cross brace; 50. Suspension cable; 51. First mating part; 52. Second mating part; 53. Connecting component; 60. Connecting device; 61. Upper connecting part; 62. Lower connecting part; 63. Snap-fit ​​part; 64. Preparation space; 65. Locking space; 66. Locking end cap; 67. First opening. Detailed Implementation

[0039] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0040] Please see Figures 1 to 4 A mesh cable-stayed arch bridge with a column structure 100 includes: a bridge body 10 and piers 20; the piers 20 are located below the bridge body 10 to support the bridge body 10; there are multiple piers 20, and the multiple piers 20 are evenly distributed at equal intervals along the length of the bridge body 10; the piers 20 include a support part 21 and a support 22; the connection between any two adjacent sides of the support part 21 is provided with an arc-shaped surface 25; the support part 21 and the support 22 on the support part 21 cooperate with each other to form a U-shaped structure 213, and the opening direction of the U-shaped structure 213 is away from the bridge body 10.

[0041] Specifically, bridge body 10 is a prestressed concrete structure with a single-box, three-cell, equal-height box section. That is, the box is divided into three independent cells by two longitudinal partitions, which further improves the torsional resistance and stability of bridge body 10. In addition, the entire bridge body 10 section maintains a consistent height along the length, which helps to simplify the construction process and provide a stable stress state.

[0042] Specifically, the cross-section of pier 20 is a pentagonal steel box section. The pentagonal steel box section has high structural strength and can withstand large vertical and horizontal loads.

[0043] Furthermore, the support 22 is located between the support part 21 and the bridge body 10, and the support 22 is provided with an upward-opening mating groove 23, in which the bridge body 10 is erected; wherein, the mating groove 23 is the first connection area 26 of the top surface of the pier column 20.

[0044] Specifically, the support 21 includes a first support wall 211 and a second support wall 212 arranged opposite to each other; wherein, the U-shaped structure 213 is composed of the first support wall 211, the second support wall 212, and the support 22. When the opening of the U-shaped structure 213 faces away from the bridge body 10, the water flow can pass through the pier 20 more smoothly, reducing the eddies and pressure differences around the pier 20, thereby reducing the impact force of the water flow on the pier 20. Furthermore, the opening of the U-shaped structure 213 facing away from the bridge body 10 helps to prevent floating objects, branches, and other debris from accumulating in front of the pier 20, thereby preventing the water flow from being blocked and the pier 20 from being subjected to additional pressure. It also facilitates the regular cleaning of debris and sediment around the pier 20, ensuring the long-term stability and safety of the pier 20.

[0045] Preferably, the support part 21 adopts a variable cross-section, V-shaped double support body, that is, the first support wall 211 and the second support wall 212 are in an inverted V-shape.

[0046] Furthermore, the support 22 includes: a base 221, a first stop wall 222, and a second stop wall 223; the first stop wall 222 and the second stop wall 223 are arranged opposite to each other, and the first stop wall 222 and the second stop wall 223 are respectively located on the top left and right sides of the base 221, and on the side close to the support part 21; wherein, the mating groove 23 is jointly formed by the base 221, the first stop wall 222, and the second stop wall 223.

[0047] Furthermore, the support 22 also includes an anchoring structure 24 and multiple anti-vibration blocks; the anchoring structure 24 is located between the base 221 and the bridge body 10, and connects the bridge body 10 and the base 221; multiple anti-vibration blocks are located on the side of the first stop wall 222 near the bridge body 10, and / or, multiple anti-vibration blocks are located on the side of the second stop wall 223 near the bridge body 10.

[0048] Specifically, the support 22 includes a mating groove 23 formed by a base 221, a first stop wall 222, and a second stop wall 223, an anchoring structure 24 disposed between the mating groove 23 and the bridge body 10, and a shock-absorbing block. The opposing first stop wall 222 and second stop wall 223 restrict the width movement of the bridge body 10, preventing excessive displacement of the bridge body 10 under horizontal loads, thus ensuring the overall stability of the bridge body 10. Furthermore, the first stop wall 222 and second stop wall 223 also provide certain constraints, especially when the support 22 is a sliding support, limiting the sliding range of the bridge body 10. The anchoring structure 24, placed between the support 22 and the bridge body 10, acts as a buffer, helping to evenly transfer loads from the superstructure of the bridge body 10 and preventing localized stress concentration. The anchoring structure 24 also helps the support 22 adapt to the deformation and rotation of the superstructure of the bridge body 10. The anti-seismic blocks are installed on the pier 20. Under the action of earthquake or other horizontal loads, they can limit the horizontal displacement of the superstructure of the bridge body 10, prevent the bridge body 10 from displacing too much along the width or length of the bridge body, and protect the overall structural safety of the bridge body 10.

[0049] Furthermore, at least one main arch 30 is provided on the bridge body 10 along the length of the bridge body 10, with both ends of the main arch 30 resting on the pier 20.

[0050] Furthermore, multiple cross braces 40 connect any two adjacent main arches 30.

[0051] The embodiments of this utility model do not limit the shape of the cross brace 40. The cross brace 40 can be one or more of the following: cross brace, truss brace, circular tube brace or triangular brace, as long as it can achieve the purpose of connecting any two adjacent main arches 30 and increasing lateral stability.

[0052] Furthermore, multiple suspension cables 50 are provided on the main arch 30; the suspension cables 50 connect the main arch 30 and the bridge body 10 to distribute the pressure on the bridge body 10; and the multiple suspension cables 50 are interwoven to form a mesh suspension cable structure to avoid excessive stress on the main arch 30.

[0053] The sling 50 includes a first mating member 51 and a second mating member 52 that are disposed opposite to each other.

[0054] In a specific example, there are two main arches 30, each with an I-shaped cross-section, symmetrically arranged on both sides of the bridge body 10 along the first direction of its length. Both ends of the main arches 30 rest on piers 20. The main arches 30 distribute the load of the superstructure of the bridge body 10 to the piers 20 at both ends through the shape of the arch, thereby reducing the stress on the bridge deck and the central structure. Furthermore, multiple suspension cables 50 are installed between the main arches 30 and the bridge body 10. These cables are equidistant from each other, forming a 60° angle with the bridge body 10. The multiple suspension cables 50 are interlaced to form a mesh suspension structure. This mesh suspension structure distributes the load on the bridge body 10 more evenly to the main arches 30 or piers 20, reducing local stress concentration and improving the overall structural stability. The mesh suspension structure also provides greater redundancy; even if some suspension cables 50 fail, the others can still bear the load, ensuring the safety and stability of the bridge. Multiple cross braces 40 are also provided between the two main arches 30. The cross braces 40 are spatial truss structures. The cross braces 40 connect the two main arches 30 to provide effective lateral support and prevent the main arches 30 from undergoing lateral deformation or tilting under load. Furthermore, the multiple cross braces 40 can effectively distribute the load, making the load distribution between the main arches 30 more uniform and reducing the deformation of a single main arch 30.

[0055] Furthermore, the width of the base 221 is greater than the width of the bridge surface of the bridge body 10.

[0056] Furthermore, the column structure 100 also includes a water level monitoring device, which is installed on the pier 20.

[0057] Furthermore, a connecting member 53 is provided on the sling 50 to connect two adjacent slings 50, and multiple slings 50 are combined to form a mesh sling structure through the connecting member 53.

[0058] Please see Figure 5 and Figure 6 A connecting device 60 is also provided at the connection between the sling 50 and the bridge body 10; the connecting device 60 includes an upper connecting part 61 and a lower connecting part 62; an installation space for installing the sling 50 is formed between the upper connecting part 61 and the lower connecting part 62, and a snap-fit ​​member 63 is provided in the middle of the installation space; and a first opening 67 is provided on the side of the connecting device 60 near the main arch 30, the first opening 67 connects to the installation space, wherein the snap-fit ​​member 63 divides the installation space into a preparation space 64 and a locking space 65.

[0059] In a specific example, when the sling 50 needs to be installed, the sling 50 is installed from the preparation space 64 into the locking space 65 through the first opening 67. The first mating part 51 on the sling 50 presses against the snap fastener 63, causing the snap fastener 63 to move horizontally away from the sling 50. The first mating part 51 on the sling 50 enters the locking space 65. At this time, the sling 50 and the connecting device 60 are assembled, that is, the lower end face of the snap fastener 63 abuts against the upper end face of the first mating part 51 to prevent the sling 50 from disengaging. At this time, the second mating part 52 of the sling 50 is in the preparation space 64. Conversely, when it is necessary to disassemble the sling 50, press the sling 50 down again, so that the second mating part 52 of the sling 50 enters the locking space 65 from the preparation space 64, and moves away from the sling 50 through the inclined surface pressing and snapping part 63 of the second mating part 52. At the same time, the second mating part 52 drives the first mating part 51 from the locking space 65 into the preparation space 64, completing the disassembly. The first mating part 51 is fixed to one end of the sling 50, and the second mating part 52 is sleeved on the sling 10 and can slide up and down along the length of the sling 10.

[0060] Furthermore, the connecting device 60 also includes a locking end cap 66, which cooperates with the upper connecting part 61 to further fix the sling 50 inside the connecting device 60; wherein, the locking end cap 66 is provided with internal threads, and the upper connecting part 61 is provided with external threads, and the two are threadedly connected.

[0061] Furthermore, the slings 50, cross braces 40, main arch 30, and connecting devices 60 are all coated with anti-corrosion and anti-rust materials.

[0062] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A mesh-structured cable-stayed arch bridge with column support, characterized in that: include: Bridge body; Multiple piers are located below the bridge structure to support it. Furthermore, multiple piers are evenly distributed at equal intervals along the length of the bridge: each pier includes a support and a bearing; the connection between any two adjacent sides of the support is provided with an arc-shaped surface; the support and the bearing on the support cooperate to form a U-shaped structure, and the opening direction of the U-shaped structure is away from the bridge body.

2. The mesh-stayed cable-stayed arch bridge with column structure according to claim 1, characterized in that: The support is located between the support and the bridge body, and the support is provided with a mating groove. The bridge body is erected in the mating groove, which is the first connection area of ​​the top surface of the pier column.

3. The mesh cable-stayed arch bridge with column structure according to claim 1, characterized in that: The support section includes: The first and second support walls are arranged opposite to each other; wherein the U-shaped structure is composed of the first support wall, the second support wall and the support.

4. The mesh cable-stayed arch bridge with column structure according to claim 2, characterized in that: the support... include: Base, first stop wall and second stop wall; The first stop wall and the second stop wall are arranged opposite to each other, and the first stop wall and the second stop wall are respectively located on the top left and right sides of the base, and on the side closer to the support part; wherein, the mating groove is formed by the base, the first stop wall and the second stop wall together.

5. The mesh cable-stayed arch bridge with column structure according to claim 4, characterized in that: The support also includes an anchoring structure and multiple anti-vibration blocks; the anchoring structure is located between the base and the bridge body and connects the bridge body and the base; multiple anti-vibration blocks are located on the side of the first stop wall near the bridge body, and / or, multiple anti-vibration blocks are located on the side of the second stop wall near the bridge body.

6. The mesh cable-stayed arch bridge with column structure according to claim 1, characterized in that: The bridge has at least one main arch, with both ends resting on piers.

7. The mesh cable-stayed arch bridge with column structure according to claim 6, characterized in that: Multiple horizontal braces connect any two adjacent main arches.

8. The mesh cable-stayed arch bridge with column structure according to claim 7, characterized in that: Multiple suspenders are installed on the main arch; the suspenders connect the main arch to the bridge body; and the multiple suspenders are interwoven to form a net-like suspender structure.

9. The mesh-stayed cable-stayed arch bridge with column structure according to claim 8, characterized in that: A connecting device is provided on the bridge body; the connecting device has a first opening on the side near the main arch, and the lower end of the sling is installed in the connecting device through the first opening; the connecting device and the sling are detachably connected; the sling, cross brace, main arch and connecting device are all coated with anti-corrosion and anti-rust material.

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