Crossing movable platform attached to high-altitude bridge
By designing a hollowed-out spatial structure and dampers on the high-altitude bridge, the vibration problem of the ultra-long experience facility under strong winds was solved, achieving a safe and stable high-altitude experience and enhancing tourists' sense of security and experience quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUIZHOU JIAOTONG ECONOMIC & TECHNOLOGY RESEARCH & DEVELOPMENT CO LTD
- Filing Date
- 2025-02-19
- Publication Date
- 2026-05-01
AI Technical Summary
The ultra-long experience facilities on high-altitude bridges experience increased vibrations under strong winds, affecting structural safety and visitor experience, resulting in low levels of safety and acceptance.
The structure employs a hollowed-out spatial structure and damper design, including a polygonal ring frame, circumferential dampers, and metal dampers. Through horizontal and vertical vibration reduction measures, the frame is segmented and connected by dampers to dissipate wind-induced vibration energy.
It significantly reduces the shaking sensation of the platform, enhances the sense of security and experience quality, improves tourist acceptance and platform stability, and promotes the development of local tourism economy.
Smart Images
Figure CN224186587U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge construction technology, specifically to a crossing platform attached to an elevated bridge. Background Technology
[0002] There is now a thousand-meter-long steel truss suspension bridge in the mountainous area. This bridge not only serves as a key infrastructure connecting the two banks and solving regional transportation bottlenecks, but its majestic appearance and thrilling crossing have also quickly made it a popular tourist attraction, drawing countless visitors to take photos and create lasting memories. To promote the integration of bridge and tourism, enhance the visitor experience, and increase interactivity and fun, a series of high-altitude experience facilities have been built on the bridge. These facilities aim to allow visitors to enjoy thrills while experiencing the grandeur of the bridge and the magnificence of nature up close, thereby deepening the integration of "bridge" and "tourism" and promoting the development of the local tourism economy.
[0003] However, the bridge's unique geographical location—spanning a deep river valley—creates unique environmental conditions. The towering mountains on both sides significantly obstruct airflow, leading to complex wind speed zones in the canyon and pass areas. Meteorological data shows that the average annual maximum wind speed at the bridge deck reaches 25.9 meters per second over 10 minutes. These extreme wind conditions place extremely high demands on the design and construction of the high-altitude experience facility.
[0004] The impact of wind speed is particularly significant when planning an ultra-long high-altitude experience facility with a total length of 120 meters. Such a long facility experiences significantly increased vibration under strong winds, which not only potentially affects its structural safety but, more importantly, can easily trigger panic among participants due to excessive shaking and vibration. This raises the barrier to entry for the high-altitude experience, severely impacting visitors' sense of safety and overall experience quality, resulting in low acceptance. Therefore, effectively mitigating the impact of wind vibration while ensuring the facility's safety and stability, and ensuring that visitors can enjoy a high-altitude experience in a thrilling yet safe environment, has become a critical technical problem that urgently needs to be solved. Utility Model Content
[0005] The present invention aims to provide a crossing activity platform attached to an elevated bridge to solve the technical problem that ultra-long activity platforms attached to elevated bridges are greatly affected by wind and vibration, resulting in low safety for tourists.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a crossing platform attached to an elevated bridge, comprising:
[0007] The spatial structure is hollowed out and its top is fixedly connected to the bottom of the bridge. The spatial structure includes multiple polygonal ring frames. Each polygonal ring frame includes a polygonal base frame and vertical support frames distributed around the base frame. The vertical support frames are fixedly connected to the base frame to form an internal passage space. The multiple polygonal ring frames are arranged sequentially along the length of the bridge.
[0008] Fall protection nets are tensioned and installed on the bottom and circumferential surfaces of the spatial structure.
[0009] The climbing entertainment setup is located within the spatial structure and is installed attached to the spatial structure.
[0010] The base of the polygonal ring frame is a hexagonal truss. The corners of the bases of two adjacent polygonal ring frames are aligned at their vertices and connected by circumferential dampers to absorb horizontal vibrations. A metal damper to absorb vertical vibrations is provided between the top of the spatial structure and the bridge.
[0011] The principle and advantages of this scheme are as follows: The spatial structure is built with trusses to create an open space, which not only reduces the overall weight of the platform but also increases its transparency and stability. Through horizontal circumferential damping and vertical vibration reduction design, this scheme achieves three-dimensional control over the impact of wind-induced vibrations. This design not only improves the stability of the platform but also significantly reduces the swaying sensation experienced by visitors, enhancing their sense of security and experience. Dividing the ultra-long platform into multiple polygonal ring frames connected by dampers effectively reduces the propagation of vibrations on the platform. This design allows each frame to independently withstand the impact of wind-induced vibrations, thereby improving the overall seismic performance of the platform.
[0012] The openwork design of the spatial structure allows visitors to fully appreciate the surrounding scenery from the platform. Meanwhile, the safety nets ensure visitor safety without obstructing the view or affecting the high-altitude experience. Through effective shock absorption design and safety measures, this solution significantly reduces visitors' fear and discomfort on the platform, increasing their acceptance and satisfaction. This contributes to the integration of bridge and tourism, and promotes the development of the local tourism economy.
[0013] As an improvement, the circumferential damper includes: an outer shell, a damping assembly, and a spring; the outer shell is a hollow octagonal shell; the damping assembly is placed at the center point inside the outer shell, the axial direction of the damping assembly is octagonal, and the upper and lower end faces of the damping assembly are damping surfaces, which are in frictional contact with the upper and lower inner end faces of the outer shell.
[0014] There are four springs. One end of the spring is fixedly connected to the inner side of the outer shell, and the other end is fixedly connected to the side of the damping assembly. The springs are distributed sequentially around the damping assembly. The damping assembly and the two sets of non-adjacent opposite sides of the outer shell are connected to the springs.
[0015] The damping assembly has outwardly extending first connectors on the two outer sides of a single spring, and the outer shell has outwardly extending second connectors on the two outer sides of a single spring. The first and second connectors are symmetrically arranged, and the first or second connector connects to the two sides of the base corner of a single polygonal annular frame.
[0016] The beneficial effects of this improvement are as follows: The octagonal design of the damping component matches the regular octagonal hollow shell of the outer casing, ensuring stable horizontal movement of the damping component and dissipating vibration energy through frictional contact between the damping surface and the inner end face of the outer casing. The addition of springs further enhances the damping performance; they not only provide restoring force for the damping component but also absorb and release energy during vibration, effectively reducing the platform's horizontal sway. The symmetrical connectors link the two sides of the base corners of the single polygonal ring frame, resulting in a more uniform distribution of vibration forces on the circumferential damper from the polygonal ring frame, thus improving the reliability and durability of the connection.
[0017] As an improvement, the damping assembly includes a damping seat, an expansion pad, and a damping plate. The damping seat includes a horizontal seat surface and a vertical concentric tube. The vertical concentric tube is an octagonal hollow tube. The horizontal seat surface is centrally fixed inside the vertical concentric tube and is fixedly connected to the inner surface of the vertical concentric tube. The damping plate includes a first damping plate and a second damping plate. The expansion pad includes a first expansion pad and a second expansion pad. The first damping plate, the first expansion pad, the horizontal seat surface, the second expansion pad, and the second damping plate are sequentially arranged inside the vertical concentric tube and distributed along the axial direction of the vertical concentric tube.
[0018] The beneficial effects of this improvement are as follows: the expansion pad design allows for a tighter contact between the damping plate and the horizontal seat surface and the vertical casing, thereby increasing frictional damping and more effectively dissipating vibration energy. The design of the damping seat, including the horizontal seat surface and the vertical casing, provides a stable support structure for the damping assembly. The octagonal hollow cylinder shape of the vertical casing matches the regular octagon of the outer shell, ensuring stable horizontal movement of the damping assembly and preventing structural instability caused by vibration. The first damping plate, the first expansion pad, the horizontal seat surface, the second expansion pad, and the second damping plate are sequentially arranged within the vertical casing, forming a multi-layered energy dissipation structure. This design not only increases the dissipation path of vibration energy within the damping assembly but also improves the efficiency of energy dissipation, thereby more effectively reducing platform vibration.
[0019] As an improvement, the outer casing is provided with a movable groove for the first connector to move horizontally within a certain range, and the first connector extends out of the outer casing through the movable groove.
[0020] The beneficial effect of this improvement is that, by incorporating the movable slot, the outer casing allows the first connector to move horizontally within a certain range. This design enhances the flexibility of the connector, enabling the polygonal annular frame to make relatively independent minor adjustments when subjected to horizontal vibrations, thereby reducing the propagation of vibrations between the frames.
[0021] As an improvement, the metal damper includes an outer cylinder, an inner drive rod, and shear ring plates. The shear ring plates include an inner fixed ring, an outer fixed ring, and multiple hourglass-shaped metal plates. One end of each metal plate is fixedly connected to the inner fixed ring, and the other end is fixedly connected to the outer fixed ring. The inner fixed ring is fitted around the inner drive rod and fixedly connected. The outer side of the outer fixed ring is fixedly connected to the inner wall of the outer cylinder. The multiple shear ring plates are arranged sequentially along the length of the inner drive rod.
[0022] The beneficial effects of this improvement are: when the metal damper is subjected to external force, the metal sheet can undergo elastic deformation and absorb energy; it improves the energy dissipation efficiency of the damper and extends its service life; the axial piston-shaped design makes the installation form of the metal damper more versatile, supporting diagonal support, herringbone support, elbow support, etc.; this metal damper can adapt to vibrations of different directions and intensities, and consumes vibration energy through the elastic deformation of the metal sheet, thereby effectively reducing the vibration amplitude of the platform, transforming the traditional curved metal damper into an axial piston-shaped metal damper, enhancing energy dissipation performance and assembly performance.
[0023] As an improvement, there are four metal plates, which are evenly distributed around the inner fixing ring, and there are three shearing ring plates.
[0024] The beneficial effects of this improvement are as follows: the four metal plates are evenly distributed around the inner fixed ring, ensuring that the energy of the damper is evenly distributed across the plates when subjected to external forces, thus avoiding localized overload and damage. The addition of three shear ring plates further enhances the energy dissipation capacity of the damper. Each shear ring plate can independently absorb and dissipate vibration energy, thereby improving the overall energy dissipation efficiency.
[0025] As an improvement, the metal damper is diagonally supported, with one end of the inner drive rod fixedly connected to the bridge and one end of the outer cylinder fixedly connected to the spatial structure.
[0026] The beneficial effects of this improvement are: the diagonal support design enables the metal damper to better withstand and disperse external forces, thereby improving the structural stability of the entire platform.
[0027] As an improvement, the spring is a drum-shaped spring.
[0028] The beneficial effects of this improvement are: the drum-shaped spring design allows for greater elastic deformation under external forces, thus absorbing more energy. This design not only improves the spring's damping performance but also extends its service life. The more compact shape of the drum-shaped spring facilitates its rational layout within spatial structures, improving overall stability and reliability.
[0029] As an improvement, the base of the polygonal ring frame includes a set of parallel opposite sides, the parallel opposite sides of the base of multiple polygonal ring frames are parallel to each other, and the collinear parallel opposite sides of adjacent polygonal ring frames are fixedly connected by a horizontal support frame.
[0030] The beneficial effects of this improvement are: by fixing the collinear parallel opposite sides of adjacent polygonal ring frames together with horizontal support frames, the rigidity of the entire frame structure is enhanced. This design allows the platform to more stably bear and distribute loads when subjected to external forces. The horizontal support frame configuration optimizes the force transmission path, enabling external forces to be distributed more evenly across the frames, avoiding localized overload and damage.
[0031] As an improvement, the polygonal ring frame consists of three parts.
[0032] The beneficial effects of this improvement are: the three polygonal ring frames ensure the platform's stability while controlling costs. Too many frames would increase material costs and construction difficulty, while too few frames might affect the platform's overall rigidity and stability. The layout of the three frames allows for the rational use of the internal space of the spatial structure, satisfying both the passage and entertainment needs of visitors while ensuring the platform's safety and reliability. Attached Figure Description
[0033] Figure 1 This is a schematic diagram of the spatial structure of this utility model.
[0034] Figure 2 This is a schematic diagram of the horizontal cross-section of the circumferential damper of this utility model.
[0035] Figure 3 This is a vertical cross-sectional schematic diagram of the circumferential damper of this utility model.
[0036] Figure 4 This is a schematic cross-sectional view of the metal damper of this utility model along the axial direction.
[0037] Figure 5 This is a schematic diagram of the shear ring plate of this utility model. Detailed Implementation
[0038] The following detailed description illustrates the specific implementation method:
[0039] The reference numerals in the accompanying drawings include: bridge 1, base frame 2, vertical support frame 3, horizontal support frame 4, circumferential damper 5, metal damper 6, outer shell 7, damping assembly 8, spring 9, first connector 10, second connector 11, damping seat 12, first damping plate 13, second damping plate 14, first expansion pad 15, second expansion pad 16, horizontal seat surface 17, outer cylinder 18, inner transmission rod 19, metal plate 20, outer fixing ring 21, and inner fixing ring 22.
[0040] Example
[0041] The basics are as follows: Figure 1 As shown, a traversing platform attached to an elevated bridge 1 is suspended at the bottom of the bridge deck and includes a spatial structure with a hollowed-out design. The top of the spatial structure is fixedly connected to the bottom surface of the bridge 1. The spatial structure includes multiple polygonal annular frames. Each polygonal frame includes a polygonal base frame 2 and vertical support frames 3. The vertical support frames 3 are distributed circumferentially along the polygonal base frame 2 and are fixedly connected to the polygonal base frame 2. This allows the polygonal base frame 2 and the vertical support frames 3 to enclose an internal traversing space. The multiple polygonal annular frames are arranged sequentially along the length of the bridge 1. In this embodiment, there are three polygonal annular frames.
[0042] The space structure is equipped with fall protection nets stretched along its bottom and circumference. The interior of the structure forms a platform for visitors to enjoy various activities. Climbing and recreational facilities for visitors are located within and attached to the space structure. These facilities include, but are not limited to, ropes, ladders, and slides, all securely attached to the interior of the space structure.
[0043] The structure of the polygonal ring frame base 2 is a hexagonal truss body. The hexagonal truss body includes a set of parallel opposite sides. In two adjacent polygonal ring frames, the corner of the base 2 of one polygonal ring frame is connected to the corner of the base 2 of the other polygonal ring frame with the vertex aligned. The parallel opposite sides of the base 2 of multiple polygonal ring frames are parallel to each other. The collinear parallel opposite sides of adjacent polygonal ring frames are fixedly connected by horizontal support frames 4.
[0044] The corners of the base frame 2 of two adjacent polygonal ring frames are connected by circumferential dampers 5, which are used to absorb the horizontal vibration of the adjacent polygonal ring frames.
[0045] As attached Figure 2 and attached Figure 3As shown, the circumferential damper 5 includes an outer shell 7, a damping assembly 8, and a spring 9. The outer shell 7 is a hollow octagonal shell, and the damping assembly 8 is placed at the center point inside the outer shell 7. The damping assembly 8 includes a damping seat 12, an expansion pad, and damping plates. The damping seat 12 includes a horizontal seat surface 17 and a vertical concentric tube. The vertical concentric tube is an octagonal hollow tube, and its center point overlaps with the center point of the outer shell 7. The horizontal seat surface 17 is centrally fixed inside the vertical concentric tube, and its circumference is fixedly connected to the inner surface of the vertical concentric tube. The horizontal seat surface 17 and the vertical concentric tube form two mounting grooves. The damping plates include a first damping plate 13 and a second damping plate 14, and the expansion pads include a first expansion pad 15 and a second expansion pad 16. The first damping plate 13, the first expansion pad 15, the horizontal seat surface 17, the second expansion pad 16, and the second damping plate 14 are sequentially arranged inside the vertical concentric tube and distributed along the axial direction of the vertical concentric tube. The first damping plate 13 and the second damping plate 14 form damping by frictional contact with the inner top surface or inner bottom surface of the outer shell 7 through the first expansion pad 15 and the second expansion pad 16, respectively.
[0046] The spring 9 is located between the outer shell 7 and the damping seat. One end of the spring 9 is fixedly connected to the inner side of the outer shell 7, and the other end of the spring 9 is fixedly connected to the outer side of the damping seat 12. There are four springs 9, which are distributed sequentially around the damping seat 12. The two sets of non-adjacent opposite sides of the damping seat 12 and the outer shell 7 are connected to the spring 9, and the spring 9 is a drum-shaped spring 9.
[0047] On the two outer surfaces of the damping seat 12, spaced apart from the individual spring 9, there are first connecting members 10 extending horizontally outward. The outer shell 7 has a movable groove through which the first connecting member 10 passes, allowing the first connecting member 10 to move horizontally within a certain range. On the two outer surfaces of the outer shell 7, spaced apart from the individual spring 9, there are second connecting members 11 extending horizontally outward, and the first connecting member 10 and the second connecting member 11 are symmetrically arranged.
[0048] In two adjacent polygonal ring frames, the two sides of the base frame 2 of one polygonal ring frame are fixedly connected to the two first connecting pieces 10 respectively, and the two sides of the base frame 2 of the other polygonal ring frame are fixedly connected to the two second connecting pieces 11 respectively.
[0049] When a polygonal ring frame vibrates horizontally relative to an adjacent polygonal ring frame, the circumferential damper 5 converts the vibration into frictional heat energy between the damping component 8 and the outer shell 7 to attenuate the vibration propagation.
[0050] A metal damper 6 is installed between the top of the spatial structure and bridge 1, as shown in the attached figure. Figure 4 and attached Figure 5As shown, the metal damper 6 includes an outer cylinder 18, an inner transmission rod 19, and shearing rings. Each shearing ring includes an inner fixed ring, an outer fixed ring 21, and metal plates 20. The metal plates 20 are hourglass-shaped, narrowing inwards from both ends. There are multiple metal plates 20; in this embodiment, four metal plates 20 are provided, evenly distributed around the inner fixed ring. One end of each metal plate 20 is fixedly connected to the inner fixed ring, and the other end is fixedly connected to the outer fixed ring 21. The inner side of the inner fixed ring is fitted over the inner transmission rod 19 and fixedly connected. The outer side of the outer fixed ring 21 is fixedly connected to the inner wall of the outer cylinder 18. Multiple shearing rings are arranged sequentially along the length of the inner transmission rod 19; in this embodiment, three shearing rings are provided.
[0051] The metal damper 6 is diagonally supported, with one end of the inner drive rod 19 fixedly connected to the bridge 1 and one end of the outer cylinder 18 fixedly connected to the spatial structure. This metal damper 6 is used to absorb and dissipate the vertical vibration between the bridge 1 and the spatial structure.
[0052] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A crossing platform attached to an elevated bridge, characterized in that: include: The spatial structure is hollowed out and its top is fixedly connected to the bottom of the bridge. The spatial structure includes multiple polygonal ring frames. Each polygonal ring frame includes a polygonal base frame and vertical support frames distributed around the base frame. The vertical support frames are fixedly connected to the base frame to form an internal passage space. Multiple polygonal ring frames are arranged sequentially along the length of the bridge; Fall protection nets are tensioned and installed on the bottom and circumferential surfaces of the spatial structure. The climbing entertainment setup is located within and attached to the spatial structure. The base of the polygonal ring frame is a hexagonal truss. The corners of the bases of two adjacent polygonal ring frames are aligned at their vertices and connected by circumferential dampers to absorb horizontal vibrations. A metal damper to absorb vertical vibrations is provided between the top of the spatial structure and the bridge.
2. The crossing platform attached to an elevated bridge according to claim 1, characterized in that, The circumferential damper includes: an outer shell, a damping assembly, and a spring; the outer shell is a hollow octagonal shell; the damping assembly is placed at the center point inside the outer shell, the axial direction of the damping assembly is octagonal, and the upper and lower end faces of the damping assembly are damping surfaces, which are in frictional contact with the upper and lower inner end faces of the outer shell. There are four springs. One end of the spring is fixedly connected to the inner side of the outer shell, and the other end is fixedly connected to the side of the damping assembly. The springs are distributed sequentially around the damping assembly. The damping assembly and the two sets of non-adjacent opposite sides of the outer shell are connected to the springs. The damping assembly has outwardly extending first connectors on the two outer sides of a single spring, and the outer shell has outwardly extending second connectors on the two outer sides of a single spring. The first and second connectors are symmetrically arranged, and the first or second connector connects to the two sides of the base corner of a single polygonal annular frame.
3. The traversing activity platform attached to the high altitude bridge according to claim 2, characterized in that: The damping assembly includes a damping seat, an expansion pad, and a damping plate. The damping seat includes a horizontal seat surface and a vertical concentric tube. The vertical concentric tube is an octagonal hollow tube. The horizontal seat surface is centrally fixed inside the vertical concentric tube and is fixedly connected to the inner surface of the vertical concentric tube. The damping plate includes a first damping plate and a second damping plate. The expansion pad includes a first expansion pad and a second expansion pad. The first damping plate, the first expansion pad, the horizontal seat surface, the second expansion pad, and the second damping plate are sequentially arranged inside the vertical concentric tube and distributed along the axial direction of the vertical concentric tube.
4. The traversing activity platform attached to a high bridge according to claim 3, characterized in that: The outer shell is provided with a movable groove for the first connector to move horizontally within a certain range, and the first connector extends out of the outer shell through the movable groove.
5. The crossing platform attached to an elevated bridge according to claim 4, characterized in that: The metal damper includes an outer cylinder, an inner drive rod, and shear rings. The shear rings include an inner fixed ring, an outer fixed ring, and multiple hourglass-shaped metal pieces. One end of each metal piece is fixedly connected to the inner fixed ring, and the other end is fixedly connected to the outer fixed ring. The inner fixed ring is fitted around the inner drive rod and fixedly connected. The outer side of the outer fixed ring is fixedly connected to the inner wall of the outer cylinder. The multiple shear rings are arranged sequentially along the length of the inner drive rod.
6. The crossing platform attached to an elevated bridge according to claim 5, characterized in that: There are four metal plates, which are evenly distributed around the inner fixing ring, and there are three shearing ring plates.
7. The crossing platform attached to an elevated bridge according to claim 6, characterized in that: The metal damper is supported diagonally, with one end of the inner transmission rod fixedly connected to the bridge and one end of the outer cylinder fixedly connected to the spatial structure.
8. The crossing platform attached to an elevated bridge according to claim 7, characterized in that: The spring is a drum-shaped spring.
9. The traversing activity platform attached to a high bridge according to claim 8, characterized in that: The base of the polygonal ring frame includes a set of parallel opposite sides. The parallel opposite sides of the base of multiple polygonal ring frames are parallel to each other, and the collinear parallel opposite sides of adjacent polygonal ring frames are fixedly connected by a horizontal support frame.
10. The traversing activity platform attached to the high altitude bridge according to claim 9, characterized in that: There are three polygonal ring frames.