Pier anti-collision structure with rubber coating cloth and construction method
Through the multi-layer structural design, including mesh support structure and enclosure layer, combined with polyurethane foam layer, the problem of poor impact resistance of existing bridge pier anti-collision structures is solved, and more efficient energy absorption and structural stability are achieved, improving The safety and service life of the bridge are achieved.
Patent Information
- Application Number
- CN202411508682.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2025-01-03
AI Technical Summary
The existing anti-collision structure of the bridge pier has poor impact resistance, mainly because it uses a single layer of composite materials, which cannot effectively disperse and absorb external impact forces.
The multi-layer structure design is adopted, including a mesh support structure, a polyurethane foam layer and a surrounding layer. The mesh support structure consists of a transverse and longitudinal support rod, a support ring, an energy absorbing body and a buffer member. The surrounding layer is composed of an aramid fiber layer, The rubber coated cloth and an adhesive layer are composed of which, the polyurethane foam layer is filled between the mesh support structure and the surrounding layer, the layers are closely bonded by bonding technology and fixed by anchors.
It improves the impact resistance of the anti-collision structure of the bridge pier, enhances the stability and safety of the structure, can evenly disperse and absorb impact forces from different directions, and extends the service life of the bridge.
Smart Images
Figure CN119243659A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of bridge anti-collision, and in particular to a bridge pier anti-collision structure with rubber-coated cloth and a construction method. Background Art
[0002] The pier anti-collision structure is a special engineering facility designed to protect key parts of bridges from ship collisions, drifting objects or natural disasters. It is usually made of high-strength materials such as reinforced concrete, steel or composite materials, and has extremely high impact resistance and durability. This structure can effectively disperse and absorb external impact forces through its unique geometry and material properties, reducing direct damage to the main body of the pier, thereby ensuring the safety and stability of the bridge structure and extending the service life of the bridge. In addition, advanced pier anti-collision systems may also integrate intelligent monitoring technology to monitor the health status of the structure in real time and ensure the safe operation of the bridge in various complex environments.
[0003] The existing bridge pier anti-collision structure generally adopts a single layer of composite material, which has poor impact resistance. Summary of the invention
[0004] The purpose of the present invention is to provide a bridge pier anti-collision structure with rubber coated cloth and a construction method, aiming to use a variety of materials to composite for shock absorption and anti-collision, thereby improving the impact resistance effect.
[0005] To achieve the above-mentioned object, in a first aspect, the present invention provides a bridge pier anti-collision structure with a rubber-coated cloth, comprising a plurality of mesh support structures, a polyurethane foam layer and a surrounding layer;
[0006] The mesh support structure includes a transverse support rod, a longitudinal support rod, a support ring, an energy absorbing body and a buffer. The energy absorbing body is arranged in the support ring. The transverse support rod is fixedly connected to the support ring and is located on one side of the support ring. The longitudinal support rod is fixedly connected to the support ring and is located on one side of the transverse support rod. The buffer is arranged on one side of the support ring. Multiple mesh support structures are connected in sequence through transverse support rods to form a chain. The surrounding layer is arranged on the outside of the mesh support structure, and the polyurethane foam layer is filled between the surrounding layer and the mesh support structure.
[0007] Wherein, the energy absorbing layer is particles made of ceramsite or aluminum honeycomb scraps.
[0008] Wherein, the buffer component includes two rotating rods, a limit rod and two contact blocks, the two rotating rods are rotatably connected to the support ring and are located on one side of the support ring, the limit rod is arranged between the two rotating rods, and the two contact blocks are respectively rotatably connected to the two rotating rods and are located on one side of the rotating rods.
[0009] Wherein, the limiting rod includes a rod body, a rotating head and a limiting spring, the rod body and the rotating head are respectively rotatably connected to the two rotating rods, the rod body is slidably connected to the rotating head, and the limiting spring is arranged between the rod body and the rotating head.
[0010] Wherein, the buffer component further includes two abutment blocks, and the two abutment blocks are respectively arranged on one side of the two contact blocks.
[0011] Wherein, the surrounding layer comprises an aramid fiber layer, a rubber coating cloth layer and an adhesive layer, and the adhesive layer is arranged between the aramid fiber layer and the rubber coating cloth layer.
[0012] In a second aspect, the present invention also provides a construction method of a bridge pier anti-collision structure with a rubber coated cloth, comprising: first laying the rubber coated cloth, then laying the aramid fiber layer, and fixing the energy absorbing body material, and making the layers tightly bonded by bonding technology;
[0013] According to the design requirements, the prepared mesh support structure is fixed to the energy absorbing body assembly;
[0014] Connect multiple mesh support structures, install them on the bridge piers, and fix them with connectors;
[0015] Liquid polyurethane raw materials are injected into the preset gaps in the mesh structure, foaming and curing through chemical reactions to fill all the gaps;
[0016] The anchors ensure its stability, thus providing effective anti-collision protection for the bridge piers.
[0017] The specific steps of first laying the rubber coated cloth, then laying the aramid fiber layer, and fixing the energy absorbing material, and tightly combining the layers by bonding technology include:
[0018] Lay a layer of specially treated rubber-coated cloth on a flat workbench;
[0019] After the rubber coated cloth is fully in place, the next step is to lay down the aramid fiber layer;
[0020] The adhesive layer is cured under high temperature and high pressure by hot pressing, so that the resin can fully penetrate into each layer of material.
[0021] The invention discloses a bridge pier anti-collision structure with rubber-coated cloth and a construction method, wherein the transverse support rods and the longitudinal support rods constitute the basic framework of the mesh support structure, and they cross each other perpendicularly to form a stable mesh shape. The transverse support rods are mainly distributed along the circumference of the bridge pier, while the longitudinal support rods are distributed perpendicular to the transverse support rods. The two are fixed on the support ring by welding or bolting, and together they construct a solid three-dimensional support network. The support ring is located at the center of each mesh unit, and as the intersection of the transverse and longitudinal support rods, it not only strengthens the stability of the overall structure, but also provides an installation platform for the energy absorber and the buffer. The energy absorber is arranged inside the support ring. The energy absorber is usually a special structure made of polymer materials or metal alloys, which can absorb a large amount of energy by deformation when impacted, and effectively reduce the impact of the impact force on the main structure of the bridge pier. The buffer is installed on one side of the support ring and works in conjunction with the energy absorber to further enhance the buffering capacity of the system. The buffer may include springs, elastic gaskets or other types of elastic elements, which can be quickly compressed when impacted, absorb shock waves, and then slowly released to avoid rebound effects. Multiple mesh support structures are connected in sequence through transverse support rods to form a chain structure. This design not only enhances the continuity and integrity of the overall structure, but also enables the entire anti-collision system to evenly disperse and absorb impact forces from different directions, thereby improving the overall stability and safety of the system. The enveloping layer is usually made of rubber-coated cloth and covers the outside of the mesh support structure. It not only provides physical protection for the internal structure to prevent corrosion and wear, but also has a certain energy absorption capacity to initially alleviate the impact force. The polyurethane foam layer is filled between the enveloping layer and the mesh support structure. As an efficient energy absorbing material, the polyurethane foam layer can be quickly compressed when subjected to force, absorb and dissipate impact energy, while maintaining good recovery, which helps to reduce the direct damage of the impact to the main structure of the pier. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0023] Figure 1 It is a structural diagram of a bridge pier anti-collision structure with rubber-coated cloth according to the first embodiment of the present invention.
[0024] Figure 2 It is a structural diagram of a bridge pier anti-collision structure with a rubber-coated cloth and a structure without the surrounding layer according to the first embodiment of the present invention.
[0025] Figure 3It is a right side structural diagram of a bridge pier anti-collision structure with a rubber-coated cloth and a surrounding layer removed according to the first embodiment of the present invention.
[0026] Figure 4 1 is a structural diagram of a limiting rod according to a first embodiment of the present invention.
[0027] Figure 5 4 is a structural diagram of the envelope layer according to the first embodiment of the present invention.
[0028] Figure 6 It is a flow chart of a construction method of a bridge pier anti-collision structure with rubber-coated cloth according to the second embodiment of the present invention.
[0029] Figure 7 This is a flow chart of the second embodiment of the present invention, in which the rubber coated cloth is first laid, then the aramid fiber layer 116 is laid, and the energy absorbing body 107 material is fixed, and the layers are tightly combined by bonding technology.
[0030] A mesh support structure 101, a polyurethane foam layer 102, an enveloping layer 103, a transverse support rod 104, a longitudinal support rod 105, a support ring 106, an energy absorber 107, a buffer 108, a rotating rod 109, a limiting rod 110, two contact blocks 111, a rod body 112, a rotating head 113, a limiting spring 114, a stop block 115, an aramid fiber layer 116, a rubber-coated cloth layer 117, an adhesive layer 118, a connecting rod 119, and a connecting buckle 120. DETAILED DESCRIPTION
[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.
[0032] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.
[0033] First embodiment
[0034] See also Figure 1 to Figure 5The present invention provides a bridge pier anti-collision structure with rubber-coated cloth, comprising a plurality of mesh support structures 101, a polyurethane foam layer 102 and an enveloping layer 103; the mesh support structure 101 comprises a transverse support rod 104, a longitudinal support rod 105, a support ring 106, an energy absorber 107 and a buffer 108, the energy absorber 107 is arranged in the support ring 106, the transverse support rod 104 is fixedly connected to the support ring 106 and is located on one side of the support ring 106, the longitudinal support rod 105 is fixedly connected to the support ring 106 and is located on one side of the transverse support rod 104, the buffer 108 is arranged on one side of the support ring 106, a plurality of the mesh support structures 101 are connected in sequence through the transverse support rod 104 to form a chain, the enveloping layer 103 is arranged on the outside of the mesh support structure 101, and the polyurethane foam layer 102 is filled between the enveloping layer 103 and the mesh support structure 101.
[0035] In this embodiment, the transverse support rods 104 and the longitudinal support rods 105: these support rods constitute the basic framework of the mesh support structure 101, and they cross each other perpendicularly to form a stable grid shape. The transverse support rods 104 are mainly distributed along the circumference of the pier, while the longitudinal support rods 105 are distributed perpendicular to the transverse support rods 104. The two are fixed to the support ring 106 by welding or bolting, and together construct a solid three-dimensional support network. The support ring 106 is located at the center of each mesh unit. As the intersection of the transverse and longitudinal support rods 105, it not only strengthens the stability of the overall structure, but also provides an installation platform for the energy absorber 107 and the buffer 108. The energy absorber 107 is placed inside the support ring 106. The energy absorber 107 is usually a special structure made of polymer materials or metal alloys. It can absorb a large amount of energy by deformation when impacted, effectively reducing the impact of the impact force on the main structure of the pier. The buffer 108 is installed on one side of the support ring 106 and works in conjunction with the energy absorber 107 to further enhance the buffering capacity of the system. The buffer 108 may include springs, elastic gaskets or other types of elastic elements, which can be quickly compressed when impacted, absorb shock waves, and then slowly released to avoid rebound effects. Multiple mesh support structures 101 are connected in sequence through transverse support rods 104 to form a chain structure. This design not only enhances the continuity and integrity of the overall structure, but also enables the entire anti-collision system to evenly disperse and absorb impact forces from different directions, thereby improving the overall stability and safety of the system. The enveloping layer 103 is usually made of rubber-coated cloth and covers the outside of the mesh support structure 101. It not only provides physical protection for the internal structure to prevent corrosion and wear, but also has a certain energy absorption capacity to initially alleviate the impact force. The polyurethane foam layer 102 is filled between the enveloping layer 103 and the mesh support structure 101. As an efficient energy absorbing material, the polyurethane foam layer 102 can be quickly compressed when subjected to force, absorb and dissipate impact energy, while maintaining good recovery, which helps to reduce the direct damage of the impact to the main structure of the pier.
[0036] The design of the entire pier anti-collision structure fully considers the mechanical properties of the material and the structural layout, and achieves effective defense against external impacts through multi-level protection measures.
[0037] The energy absorbing layer is made of ceramsite or aluminum honeycomb scraps.
[0038] Ceramic granules are lightweight and highly porous ceramic particles. They are widely used in the fields of construction and civil engineering due to their unique physical properties, such as high density, high hardness and excellent energy absorption characteristics. In this design, ceramsite is used as an energy-absorbing material, which can absorb energy by breaking or deforming when impacted, effectively reducing the impact of the impact force on the bridge pier. Aluminum honeycomb structures are widely used in industries such as aviation, automobiles and construction due to their extremely high specific strength and lightweight characteristics. Using particles made from aluminum honeycomb scraps as energy-absorbing materials not only realizes the recycling of resources, but also its unique porous structure can efficiently absorb and disperse impact energy, enhancing the protective effectiveness of the bridge pier anti-collision structure.
[0039] The buffer component includes two rotating rods 109, a limiting rod 110 and two contact blocks 111. The two rotating rods 109 are rotatably connected to the support ring 106 and are located on one side of the support ring 106. The limiting rod 110 is arranged between the two rotating rods 109. The two contact blocks are respectively rotatably connected to the two rotating rods 109 and are located on one side of the rotating rod 109.
[0040] The two rotating rods 109 are rotatably connected to the support ring 106 and are located on one side of the support ring 106. Through linkage with the contact block, a flexible buffer mechanism is formed. When impacted, the rotating rods 109 drive the contact block to rotate, and through the contact between the contact block and the external object, the impact force is converted into rotational kinetic energy, thereby achieving a buffering effect.
[0041] The limiting rod 110 includes a rod body 112, a rotating head 113 and a limiting spring 114. The rod body 112 and the rotating head 113 are respectively rotatably connected to the two rotating rods 109. The rod body 112 and the rotating head 113 are slidably connected. The limiting spring 114 is arranged between the rod body 112 and the rotating head 113.
[0042] The rod body 112 and the rotating head 113 are respectively connected to the rotating rod 109 in rotation, and a sliding connection is provided between the rod body 112 and the rotating head 113, and the limit spring 114 is located between the rod body 112 and the rotating head 113. Under the action of the impact force, the rotating head 113 slides relative to the rod body 112, and the limit spring 114 is compressed to store energy. When the impact force weakens or disappears, the limit spring 114 releases energy, pushing the rotating head 113 to reset, thereby realizing the self-recovery function of the buffer 108.
[0043] The buffer member 108 further includes two stop blocks 115 , and the two stop blocks 115 are respectively disposed on one side of the two contact blocks.
[0044] The two abutments 115 are respectively arranged on one side of the two contact blocks 111, increasing the contact area of the buffer structure, so that when an impact occurs, the two abutments 115 can be close to and contact each other, thereby improving the support stability and better absorbing energy, thereby improving the energy absorption efficiency. The existence of the abutments 115 enables the buffer structure to play a more stable buffering role when impacted at different angles and directions, thereby enhancing the robustness of the entire bridge pier anti-collision system.
[0045] The envelope layer 103 includes an aramid fiber layer 116 , a rubber coating cloth layer 117 and an adhesive layer 118 . The adhesive layer 118 is disposed between the aramid fiber layer 116 and the rubber coating cloth layer 117 .
[0046] As the outermost layer of the bridge pier anti-collision structure, the enveloping layer 103 plays an important role as the first line of defense. The enveloping layer 103 in this design adopts a multi-layer composite material structure, including an aramid fiber layer 116, a rubber coating cloth layer 117 and an adhesive layer 118, forming a strong and elastic protective shell.
[0047] The aramid fiber layer 116 is a high-strength, high-modulus synthetic fiber. The aramid fiber provides a solid skeleton support for the surrounding layer 103 with its excellent tensile strength and wear resistance, and can effectively resist external physical impact and environmental erosion.
[0048] The rubber coated cloth layer 117 is located on the periphery, which not only provides additional waterproof and anti-corrosion protection, but also has a certain energy absorption capacity, which can initially alleviate the impact force and reduce direct damage to the internal structure.
[0049] The adhesive layer 118 disposed between the aramid fiber layer 116 and the rubber-coated cloth layer 117 ensures a firm bond between the two layers of material, improves the overall stability and consistency of the surrounding layer 103, enables it to function as a whole when subjected to impact, and enhances the protective effectiveness of the bridge pier anti-collision structure.
[0050] The connecting member includes a connecting rod 119 and a plurality of connecting buckles 120 . The plurality of connecting buckles 120 are fixed on the connecting rod 119 and are fixed in cooperation with the slots on the transverse support rod 104 .
[0051] Second embodiment
[0052] See also Figure 6-7 The present invention also provides a construction method of a bridge pier anti-collision structure with a rubber-coated cloth, comprising:
[0053] S201 first lays the rubber coated cloth, then lays the aramid fiber layer 116, and fixes the energy absorbing body 107 material, and makes each layer tightly bonded by bonding technology;
[0054] The specific steps include:
[0055] S301 Lay a layer of specially treated rubber-coated cloth on a flat workbench;
[0056] Before construction, choose a clean, flat work surface and use professional tools to accurately lay the pre-treated rubber coating cloth. This step requires ensuring that the coating cloth is flat, wrinkle-free and bubble-free to ensure that the subsequent layers fit tightly.
[0057] S302 After the rubber coating cloth is completely in place, the next step is to lay the aramid fiber layer 116;
[0058] After the rubber coating cloth is laid and checked, the aramid fiber layer 116 is laid. The laying of the aramid fiber layer 116 requires attention to the control of the fiber direction to optimize the mechanical properties of the composite material. Usually, the aramid fiber is pre-impregnated in a resin matrix to form a prepreg to ensure the accuracy of the fiber arrangement and the suitability of the resin content, thereby improving the overall performance of the composite material.
[0059] S303 The adhesive layer 118 is cured under high temperature and high pressure by heat pressing, so that the resin fully penetrates into each layer of the material.
[0060] After the rubber coating cloth and the aramid fiber layer 116 are laid, the critical bonding and curing stage begins. The resin of the bonding layer 118 is fully infiltrated into each layer of material by a hot press under high temperature and high pressure to form a solid whole. This process requires strict control of temperature, pressure and time parameters to ensure that the various layers of material achieve the best bonding state.
[0061] S202, according to the design requirements, the prepared mesh support structure 101 is fixed to the energy absorbing body 107 component;
[0062] According to the design drawings, the pre-prepared mesh support structure 101 is precisely connected to the energy absorber 107 assembly and fixed together using special fasteners or welding technology. This step requires the construction personnel to have a deep understanding of the design details to ensure the stable connection between the support structure and the energy absorber 107, laying a solid foundation for subsequent installation.
[0063] S203 connects a plurality of mesh support structures 101 and installs them on the bridge pier, and fixes them by connecting pieces;
[0064] Multiple mesh support structures 101 are connected in sequence through transverse support rods 104 to form a chain structure to ensure the continuity and stability of the overall structure. Subsequently, the entire support structure is installed at the designated position of the pier and firmly fixed to the surface of the pier using high-strength bolts or welding technology to ensure the stability of the anti-collision structure under various external conditions.
[0065] S204 injects liquid polyurethane raw materials into the preset gaps in the mesh structure, foams and solidifies through chemical reactions, and fills all the gaps;
[0066] Professional injection equipment is used to accurately inject liquid polyurethane raw materials into the preset gaps of the mesh support structure 101. After contacting air or a specific catalyst, the polyurethane raw materials rapidly undergo a chemical reaction, expand and foam, and solidify to form a high-density foam filler, which not only enhances the stability of the structure, but also significantly improves its energy absorption performance.
[0067] The S205 is secured by anchors, thus providing effective anti-collision protection for the bridge piers.
[0068] Finally, in order to further enhance the stability of the pier anti-collision structure, the entire anti-collision system is tightly connected to the main structure of the pier by installing anchors. The selection and installation of anchors should be based on the specific material and environmental conditions of the pier to ensure that the anti-collision structure can remain intact when subjected to strong impacts and effectively protect the pier from damage.
[0069] What is disclosed above is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.
Claims
1. A bridge pier anti-collision structure with rubber-coated cloth, characterized in that: It includes a plurality of mesh support structures, a polyurethane foam layer and a surrounding layer; The mesh support structure includes a transverse support rod, a longitudinal support rod, a support ring, an energy absorbing body and a buffer. The energy absorbing body is arranged in the support ring. The transverse support rod is fixedly connected to the support ring and is located on one side of the support ring. The longitudinal support rod is fixedly connected to the support ring and is located on one side of the transverse support rod. The buffer is arranged on one side of the support ring. Multiple mesh support structures are connected in sequence through transverse support rods to form a chain. The surrounding layer is arranged on the outside of the mesh support structure, and the polyurethane foam layer is filled between the surrounding layer and the mesh support structure.
2. A bridge pier anti-collision structure with rubber-coated cloth as claimed in claim 1, characterized in that: The energy absorbing layer is made of ceramsite or aluminum honeycomb scraps.
3. A bridge pier anti-collision structure with rubber-coated cloth as claimed in claim 2, characterized in that: The buffer component includes two rotating rods, a limiting rod and two contact blocks. The two rotating rods are rotatably connected to the support ring and are located on one side of the support ring. The limiting rod is arranged between the two rotating rods. The two contact blocks are respectively rotatably connected to the two rotating rods and are located on one side of the rotating rods.
4. A bridge pier anti-collision structure with rubber-coated cloth as claimed in claim 3, characterized in that: The limiting rod comprises a rod body, a rotating head and a limiting spring. The rod body and the rotating head are respectively rotatably connected to the two rotating rods. The rod body is slidably connected to the rotating head. The limiting spring is arranged between the rod body and the rotating head.
5. The bridge pier anti-collision structure with rubber-coated cloth as claimed in claim 4, characterized in that: The buffer component further includes two abutment blocks, and the two abutment blocks are respectively arranged on one side of the two contact blocks.
6. A bridge pier anti-collision structure with rubber-coated cloth as claimed in claim 5, characterized in that: The surrounding layer includes an aramid fiber layer, a rubber coating cloth layer and an adhesive layer, and the adhesive layer is arranged between the aramid fiber layer and the rubber coating cloth layer.
7. A construction method for a bridge pier anti-collision structure with a rubber-coated cloth, applied to the bridge pier anti-collision structure with a rubber-coated cloth as claimed in claim 6, It is characterized in that It includes: first laying the rubber coated cloth, then laying the aramid fiber layer, and fixing the energy absorbing material, and making the layers tightly bonded by bonding technology; According to the design requirements, the prepared mesh support structure is fixed to the energy absorbing body assembly; Connect multiple mesh support structures, install them on the bridge piers, and fix them with connectors; Liquid polyurethane raw materials are injected into the preset gaps in the mesh structure, foaming and curing through chemical reactions to fill all the gaps; The anchors ensure its stability, thus providing effective anti-collision protection for the bridge piers.
8. The construction method of the bridge pier anti-collision structure with rubber coating cloth as claimed in claim 7, characterized in that: The specific steps of first laying the rubber coated cloth, then laying the aramid fiber layer, and fixing the energy absorbing material, and making the layers tightly bonded by bonding technology include: Lay a layer of specially treated rubber-coated cloth on a flat workbench; After the rubber coated cloth is fully in place, the next step is to lay down the aramid fiber layer; The adhesive layer is cured under high temperature and high pressure by hot pressing, allowing the resin to fully penetrate into each layer of material.