Spatial combination high-altitude suspension pedestrian landscape suspension bridge

Abstract

A spatial combination high-altitude suspension pedestrian landscape suspension bridge comprises a bridge body which is fixedly connected between building structural bodies. The bridge main body comprises at least two main landscape platforms, the main landscape platforms are connected with a main channel, and the main channel is an access channel for viewers; at least one overhanging viewing platform is arranged on the periphery of the main landscape platform, a first viewing channel is arranged between the main landscape platform and the overhanging viewing platform, the overhanging viewing platform is connected with the next main viewing platform through a second viewing channel, the main viewing platforms are located on the same horizontal plane, and the centers of the main landscape platforms are located on the same straight line. The lower portion of the main landscape platform is connected with main cables, wind-resistant cables are arranged on the two sides of the bridge body, and stay cables are arranged between the main cables and the wind-resistant cables. According to the high-altitude suspension pedestrian landscape suspension bridge, the sightseeing function and the landscape function are combined, the structure is stable, and multi-layer viewing experience is provided.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge design, and in particular relates to a spatially combined high-altitude suspended pedestrian landscape suspension bridge. Background Art

[0002] As a key element in scenic areas, viewing platforms not only offer visitors a unique experience of ascending to distant horizons, but also become a significant attraction through their distinctive shape and structural design. However, with the booming tourism industry and the increasing demands of visitors for a truly immersive experience, traditional viewing platform designs are gradually showing their limitations, facing severe challenges in terms of carrying capacity, sensory experience, and structural innovation.

[0003] First, capacity limitations are a major challenge in current viewing platform design. Currently, most platforms feature a single viewing corridor extending outward from the mountain. This design limits the corridor's capacity, making it difficult to accommodate large numbers of visitors during peak tourist seasons. At popular attractions, frequent crowds severely impact the overall visitor experience.

[0004] Secondly, traditional viewing platforms face urgent challenges, such as monotonous design and insufficient sensory experience. Conventional viewing platforms often lack variety and depth in their design, making it difficult to offer visitors a rich and diverse sensory experience. In the increasingly competitive tourism market, enhancing the visitor experience has become crucial for scenic area development. As a key element in scenic areas, design innovation for viewing platforms is particularly crucial and urgent.

[0005] Furthermore, the obsolescence of suspension bridge structures is a major bottleneck hindering the development of modern tourist attractions. Traditional suspension bridges, with their monotonous structural types and outdated designs, no longer meet the demands of modern tourist attractions for novelty and uniqueness. As an effective means of connecting diverse scenic spots, structural innovation in suspension bridges not only impacts the safety and aesthetics of the bridges themselves but also directly impacts the visitor experience and visual enjoyment.

[0006] Therefore, in response to these challenges, this utility model aims to design a spatially integrated, high-altitude suspended pedestrian landscape suspension bridge. This design breaks away from traditional flat structures and, through innovative spatial combinations, offers visitors unprecedented visual effects and a unique touring experience. Furthermore, the design fully considers requirements for load capacity, sensory experience, and structural innovation, aiming to meet the diverse needs of visitors while promoting innovation and development in scenic viewing platform design. Utility Model Content

[0007] In view of the problems existing in the prior art, the utility model provides a spatially combined high-altitude suspended pedestrian landscape suspension bridge.

[0008] The utility model is realized as follows: a spatial combination high-altitude suspended pedestrian landscape suspension bridge, characterized in that: it comprises a bridge body, and the bridge body is fixedly connected between a building structure or a natural rock mass;

[0009] The bridge body includes at least two main viewing platforms, which are connected to a main channel, which is connected to a building structure or a natural rock mass, and is an entrance and exit passage for tourists; at least one cantilevered viewing platform is provided around the main viewing platform, a first viewing channel is provided between the main viewing platform and the cantilevered viewing platform, and the cantilevered viewing platform is connected to the next main viewing platform through a second viewing channel, the main viewing platforms are located on the same horizontal plane, and the centers of the main viewing platforms are located on the same straight line, the main cables are connected below the main viewing platforms, wind-resistant cables are provided on both sides of the bridge body, and inclined cables are provided between the main cables and the wind-resistant cables.

[0010] Preferably, the plane where the cantilevered viewing platform is located and the plane where the main viewing platform is located are located on different spatial planes.

[0011] Preferably, there are two cantilevered viewing platforms, one of which is located below the main viewing platform; the other is located above the main viewing platform and is symmetrically arranged along the center of the main viewing platform.

[0012] Preferably, the cantilevered viewing platform above is connected to the next main viewing platform through a second viewing passage.

[0013] Preferably, the centers of the cantilevered viewing platforms are located on the same vertical plane in a direction perpendicular to the main body of the bridge; the centers of the cantilevered viewing platforms are located on the same curved surface, and the curved surface coincides with the center of the wind-resistant cable.

[0014] Preferably, a plurality of supporting booms are provided below the cantilevered viewing platform, and the lower ends of the supporting booms are connected to wind-resistant cables.

[0015] Preferably, the lower end of each supporting boom is connected to the same point of the wind-resistant cable, and the upper end of the supporting boom is connected to the cantilevered viewing platform.

[0016] Preferably, the main viewing platform includes a main frame, the edge of the main frame is provided with a main landscape enclosure or guardrail, and a main viewing platform support platform is provided at the bottom of the main frame, and the main viewing platform support platform is fixedly connected to the first viewing channel and the second viewing channel.

[0017] Preferably, the cantilevered viewing platform includes a cantilevered frame, the edge of the cantilevered frame is provided with a cantilevered landscape enclosure or guardrail, and the bottom of the cantilevered frame is provided with a cantilevered support platform, which is fixedly connected to the first viewing channel and the second viewing channel.

[0018] The advantages and technical effects of this utility model are as follows: This utility model is mainly reflected in structural stability and safety, optimization of viewing experience, design flexibility and space utilization and visual effects, unique advantages of cantilevered viewing platform design, and wind resistance, etc., providing tourists with a safer, more comfortable and pleasant viewing experience.

[0019] First, in terms of structural stability and safety, this technology significantly enhances the overall structural stability and safety of the viewing platform through the meticulously designed main frame, cantilever frame, main viewing platform support platform, and cantilever support platform. Furthermore, the combination of main cables and wind-resistant cables forms a single, force-bearing structure with the connected main components. This design effectively resists external wind pressure, visitor loads, and other forces, ensuring the stable operation of the viewing platform in various environmental conditions and safeguarding the personal safety of visitors.

[0020] Secondly, in terms of optimizing the viewing experience, the design of the main landscape enclosure and the cantilevered landscape enclosure not only provides necessary safety for visitors, but also guides visitors' sights through their unique design aesthetics, greatly enhancing the viewing experience. Furthermore, the rational layout of the first and second viewing paths allows visitors to easily reach different locations on the viewing platform and fully appreciate the diverse landscape, meeting their needs for convenience and comfort.

[0021] Furthermore, this technology excels in design flexibility and space utilization. A modular design approach allows the structural form of the main frame and cantilever frame to be flexibly adjusted to suit site conditions and viewing requirements. This design flexibility not only helps achieve a harmonious integration between the viewing platform and its surroundings, but also, through the rational layout of the support platform and viewing path, fully utilizes limited space resources, improves space utilization, and achieves efficient land use.

[0022] The application of triple-layer explosion-proof glass further enhances the technical effectiveness of this technology. Using modern materials like triple-layer explosion-proof glass for the support platform and fencing not only meets structural safety requirements but also imbues the viewing platform with a unique perspective and suspended effect, enhancing its overall aesthetics and visual impact. This triple-layer explosion-proof glass not only enhances the viewing platform's sense of technology and modernity, but also provides visitors with a more stunning viewing experience.

[0023] The design of the cantilevered viewing platform is a highlight of this technology. By placing it on a different plane from the main viewing platform, it adds a sense of layering and spatial depth to the scenery. This design expands the viewing area, bringing visitors closer to nature and providing a broader perspective. Furthermore, the use of the cantilevered structure demonstrates the innovative nature of the structural design.

[0024] Finally, this technology also demonstrates significant advantages in wind resistance and ease of construction. The alignment of the center of the cantilevered observation deck with the center of the wind-resistant cables helps evenly distribute structural forces and enhance the bridge's wind resistance. Furthermore, the combined use of support hangers and wind-resistant cables further enhances the cantilevered observation deck's wind resistance. These design features not only improve structural safety but also facilitate construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a top view of the utility model;

[0026] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model;

[0027] Figure 3 This is a three-dimensional model diagram of the entire bridge;

[0028] Figure 4 is the envelope diagram of the normal stress of the steel beam of the whole bridge under various load combinations (unit: MPa);

[0029] Figure 5 is the shear stress envelope diagram of the steel beam of the entire bridge under various load combinations (unit: MPa);

[0030] Figure 6 is the stress envelope of the cable under the most unfavorable combination (unit: MPa);

[0031] Figure 7 is the deformation diagram of the entire bridge under full crowd load (unit: mm);

[0032] Figure 8 is the deformation diagram of the entire bridge under wind load (unit: mm);

[0033] Figure 9 is the first-order modal diagram of the full bridge;

[0034] Figure 10 is the second-order modal diagram of the full bridge;

[0035] Figure 11 is the third-order modal diagram of the full bridge;

[0036] Figure 12 is the fourth-order modal diagram of the full bridge;

[0037] Figure 13 is the fifth-order modal diagram of the full bridge;

[0038] Figure 14 is the fifth-order modal diagram of the full bridge;

[0039] Figure 15 This is a schematic diagram of the node locations at the bridge supports;

[0040] Figure 16is the full-bridge Fx reaction diagram (unit: kN);

[0041] Figure 17 is the full-bridge Fy reaction diagram (unit: kN);

[0042] Figure 18 is the full-bridge Fz reaction diagram (unit: kN).

[0043] In the figure, 10, bridge body; 11, main passage; 20, main viewing platform; 21, main frame; 22, main viewing enclosure; 23, main viewing platform support platform; 30, cantilevered viewing platform; 31, cantilevered frame; 32, cantilevered viewing enclosure; 33, cantilevered support platform; 40, first viewing passage; 41, second viewing passage; 50, main cable; 60, wind-resistant cable; 70, inclined cable. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0045] See also Figure 1 and Figure 2 A spatial combination high-altitude suspended pedestrian landscape suspension bridge includes a bridge body 10, which is fixedly connected between a building structure or a natural rock mass. The building structure can be a distribution center built on a mountain, serving as the starting point or end point for tourists to climb the cable bridge, or can be directly connected to a stepping ladder or a rest platform.

[0046] The bridge body includes at least two main viewing platforms 20, which are connected to a main passage 11, which is an entrance and exit passage for tourists; at least one cantilevered viewing platform 30 is provided around the main viewing platform, a first viewing passage 40 is provided between the main viewing platform and the cantilevered viewing platform, and the cantilevered viewing platform is connected to the next main viewing platform through a second viewing passage 41. The main viewing platforms are located on the same horizontal plane, and the centers of the main viewing platforms are located on the same straight line. The main cables 50 are connected below the main viewing platforms, and wind-resistant cables 60 are provided on both sides of the bridge body. A diagonal cable 70 is provided between the main cables and the wind-resistant cables.

[0047] Technical effect of spatial combination high-altitude suspended pedestrian landscape suspension bridge

[0048] 1. Connection between the bridge body and the building structure

[0049] Structural Technical Effect: The bridge structure is fixedly connected between the building structure (pylons or mountain), ensuring its stability and safety. Through rational connection and structural design, the bridge structure can withstand various external forces such as tourists and wind loads, ensuring the normal operation of the bridge.

[0050] The technical effect of the spatial design concept: Integrating the bridge structure with the building structure not only enhances the bridge's integrity but also blends it with the surrounding environment, creating a harmonious and unified landscape. This design contributes to enhancing the overall aesthetics of the scenic area and enhancing visitors' sense of immersion.

[0051] 2. Design of the main viewing platform and main passage

[0052] Structural and technical effects: As the primary gathering area for tourists, the main viewing platform's design must consider its load-bearing capacity and stability. The main passageway, serving as a gateway for visitors, must ensure smooth and safe passage. Through appropriate structural layout and material selection, the main viewing platform and passageway can remain stable even when carrying large numbers of tourists.

[0053] Technical Effects of Spatial Design Concepts: The rational layout of the main viewing platform and main passageway helps guide visitor flow and avoid congestion. Furthermore, the design of the main viewing platform incorporates landscape elements such as greenery and seating to enhance the visitor's restful experience. The design of the main passageway focuses on combining efficiency and aesthetics to create a comfortable environment for visitors.

[0054] 3. Design of the cantilevered viewing platform and viewing passage

[0055] Structural and technical effects: The cantilevered viewing platform connects to the main viewing platform via the first viewing path, and then to the next main viewing platform via the second viewing path. This design enhances the viewing platform's sense of layering and spatial variation. The cantilevered structure requires special consideration of its load-bearing capacity and stability. A sound structural design ensures that the cantilevered viewing platform will not cause any accidents when carrying tourists.

[0056] Technical Effects of Spatial Design Concepts: The cantilevered viewing platform breaks the traditional flat layout of viewing platforms, providing visitors with a diverse viewing experience. Furthermore, the design of the viewing path emphasizes spatial guidance and visual extension, allowing visitors to fully appreciate the surrounding natural and cultural landscapes as they walk. This design helps to enhance visitor interest and satisfaction.

[0057] 4. Arrangement of main cables, wind-resistant cables and stay cables

[0058] Structural Technical Effects: As the primary load-bearing structure of a bridge, the main cables must be arranged to consider the bridge's overall load-bearing performance and stability. Wind-resistant cables help enhance the bridge's wind resistance, ensuring its safety in strong winds. Stay cables, connecting the main cables and wind-resistant cables, further enhance the bridge's overall rigidity and stability. The rational arrangement and coordinated operation of these components ensure the bridge's structural safety and longevity.

[0059] Technical Effects of the Spatial Design Concept: The arrangement of the main cables, wind-resistant cables, and stay cables not only meets the structural requirements of the bridge but also creates a unique visual landscape. The sleek lines and graceful forms of these cables complement the main structure of the bridge, adding a striking visual element to the scenic area. Furthermore, the design of these cables embodies the technological sophistication and innovative spirit of modern bridge engineering, contributing to the overall quality and image of the scenic area.

[0060] The plane where the cantilevered viewing platform is located is on a different spatial plane from the plane where the main viewing platform is located; there are two cantilevered viewing platforms, one of which is located below the main viewing platform; the other cantilevered viewing platform is located above the main viewing platform and is symmetrically arranged along the center of the main viewing platform; the cantilevered viewing platform located above is connected to the next main viewing platform through a second viewing passage.

[0061] This technical feature brings about many technical effects, which are analyzed in detail as follows:

[0062] 1. Space Utilization and Expansion

[0063] Increased viewing depth: By placing the cantilevered viewing platform on a different plane from the main viewing platform, the layering and spatial depth of the viewing area are increased. Visitors can enjoy different views at different heights and angles, enhancing the viewing experience.

[0064] Expand the viewing range: The design of the cantilevered viewing platform allows tourists to get closer to nature, especially in natural scenic areas such as mountains and canyons. The cantilevered design can overcome terrain restrictions and allow tourists to gain a wider field of view.

[0065] 2. Structural design and stability

[0066] Structural innovation: This design breaks the plane layout of the traditional viewing platform and reflects the innovation of the structural design.

[0067] Enhanced stability: While the cantilever structure increases design complexity, a well-designed structure ensures the stability of the cantilevered viewing platform. Accurately calculating the forces acting on the cantilever ensures the viewing platform remains safe and stable despite external forces such as visitor loads and wind loads.

[0068] 3. Visual Experience and Landscape Effect

[0069] Enriching visual experience: The cantilevered viewing platform is not on the same plane as the main viewing platform, creating a unique visual landscape. Visitors can feel the changes in space and the transformation of scenery as they walk, which increases the interest and appreciation of the tour.

[0070] Enhanced landscape interactivity: The design of the cantilevered viewing platform allows visitors to interact more closely with the landscape. Visitors can engage in dialogue with the landscape on different planes and experience its charm and charm.

[0071] The centers of the cantilevered viewing platforms are located on the same vertical plane in the direction perpendicular to the main bridge body; the centers of the cantilevered viewing platforms are located on the same curved surface, which coincides with the centers of the wind-resistant cables. This technical feature brings the following significant technical effects, as follows:

[0072] Space layout optimization:

[0073] The centers of the cantilevered viewing platforms are located on the same vertical plane. This layout creates an orderly arrangement of the viewing platforms in space, enhancing the overall beauty and harmony.

[0074] At the same time, since they are located on the same curved surface, this design further improves the rationality of space utilization and makes the viewing platform more integrated with the surrounding environment.

[0075] Structural force balance:

[0076] The center of the cantilevered viewing platform coincides with the center of the wind-resistant cables, a design that helps evenly distribute structural forces. The wind-resistant cables, a key support structure for the bridge, have their centers aligned with the center of the cantilevered viewing platform, allowing external forces such as wind loads to be more evenly transferred to the bridge, thereby improving the overall structural stability.

[0077] Improved wind resistance:

[0078] Because the center of the cantilevered viewing platform coincides with the center of the wind-resistant cables, this design also helps improve the bridge's wind resistance. When wind loads act on the bridge, the wind-resistant cables can effectively resist wind pressure and reduce the swaying of the bridge body, thus ensuring the safety and stability of the cantilevered viewing platform.

[0079] Construction convenience:

[0080] This technical feature also facilitates construction. Because the centers of the cantilevered viewing platforms lie on the same vertical and curved planes, the positions of the various viewing platforms can be more accurately located during construction, reducing construction difficulty and errors and improving construction efficiency.

[0081] In summary, this technical feature significantly impacts the design of the bridge and cantilevered viewing platform by optimizing spatial layout, balancing structural forces, improving wind resistance, and facilitating construction. These benefits enhance the overall performance and aesthetics of the bridge, providing visitors with a safer, more comfortable, and more enjoyable viewing experience.

[0082] Preferably, several support booms 31 are provided beneath the cantilevered viewing platform, the lower ends of which are connected to wind-resistant cables 60. The provision of support booms distributes the weight and load of the cantilevered viewing platform across multiple points, rather than relying solely on a few connection points. This distributed force distribution helps reduce the concentration of force at a single point, effectively minimizing deformation under crowd loads or wind loads, thereby improving the stability of the overall structure.

[0083] Enhanced Wind Resistance: The combination of wind-resistant cables and supporting booms significantly enhances the cantilevered viewing platform's wind resistance. Under wind loads, the wind-resistant cables absorb and disperse wind loads, reducing sway and deformation caused by wind pressure, ensuring the platform's safety and stability.

[0084] The design of the supporting booms and wind-resistant cables makes the structural layout of the cantilevered viewing platform more flexible and diverse. Designers can adjust the number, position and length of the supporting booms, as well as the arrangement of the wind-resistant cables according to actual needs, in order to achieve the best structural performance and visual effects; Lightweight design: By reasonably setting the supporting booms and wind-resistant cables, lightweight design can be achieved while ensuring structural stability. Lightweight design helps to reduce material usage and construction difficulty, reduce engineering costs, and is also beneficial to environmental protection and sustainable development. Preferably, the present invention is provided with at least two supporting booms, the lower end of each supporting boom is connected to the same point of the wind-resistant cable, and the upper end of the supporting boom is connected to the cantilevered viewing platform.

[0085] The main viewing platform 20 includes a main frame 21, a main landscape enclosure 22 is provided on the edge of the main frame, a main viewing platform support platform 23 is provided at the bottom of the main frame, and the main viewing platform support platform is fixedly connected to the first viewing channel 40 and the second viewing channel 41. The cantilevered viewing platform 30 includes a cantilevered frame 31, a cantilevered landscape enclosure 32 is provided on the edge of the cantilevered frame, and a cantilevered support platform 33 is provided at the bottom of the cantilevered frame, and the cantilevered support platform is fixedly connected to the first viewing channel and the second viewing channel. Explosion-proof glass can be laid on the above-mentioned main viewing platform support platform and cantilevered support platform to increase the perspective effect. The shapes of the main frame and cantilevered frame can be; the main technical features mainly have the following characteristics:

[0086] By designing the main frame and cantilever frame as the primary load-bearing structure of the viewing platform, combined with the stable installation of the main viewing platform support platform and the cantilever support platform, the overall structural stability and safety of the viewing platform are significantly enhanced. This design effectively resists external wind pressure, visitor loads, and other forces, ensuring the stable operation of the viewing platform in various environmental conditions and protecting the personal safety of visitors.

[0087] The meticulously designed primary and cantilevered landscape enclosures not only provide essential safety for visitors, but also guide their gaze through their aesthetically pleasing design, significantly enhancing the viewing experience. Furthermore, the strategically placed primary and secondary viewing paths allow visitors to easily reach different locations on the viewing platform, fully appreciating the diverse landscape and satisfying their needs for convenience and comfort. For example, the concept of using modern materials such as triple-layer explosion-proof glass for the support platform and fencing was conceived. This material choice not only meets structural safety requirements but also imbues the viewing platform with a unique perspective and suspended effect, enhancing its overall aesthetics and visual impact. This innovative material application not only enhances the viewing platform's sense of technology and modernity, but also provides visitors with a more striking viewing experience.

[0088] A modular design approach allows the structural form of the main frame and cantilever frame to be flexibly adjusted according to actual site conditions and viewing requirements. This design flexibility not only helps achieve a harmonious integration between the viewing platform and the surrounding environment, but also fully utilizes limited space resources through the rational layout of the support platform and viewing path, improving space utilization and achieving efficient use of land resources.

[0089] Experimental items of this utility model:

[0090] The bridge adopts a suspension bridge structure, primarily supported by two main cables below the main viewing platform. Three-dimensional wind-resistant cables are also installed to increase lateral and vertical stiffness. The calculated span is 380m, with a clear width of 7.0m at both ends of the main bridge. The main viewing platform has a diameter of 21m, the cantilevered viewing platform has a diameter of 16m, and the clear width at the connecting stairway is 4.0m.

[0091] The main viewing platform, cantilevered viewing platform, viewing passage and main passages at both ends of the bridge all adopt continuous steel box girder structure, and the material used is Q460C. The main viewing platform beam is 1.8m high, the cantilevered viewing platform beam is 1.0m high, the main passage steel beam is 1.5m high, and the cantilevered beam of the viewing passage gradually increases in height from 1.8 to 1.0m.

[0092] 1. Design Methods and Process

[0093] The bridge superstructure analysis uses the finite element calculation program "Midas Civil" to calculate the bridge.

[0094] 2. Design parameters

[0095] Engineering materials

[0096] Q460C grade steel is used in the model, and its mechanical parameters are as follows:

[0097] Elastic modulus: 2.06×10 5 MPa.;

[0098] Shear modulus: 7.9×10 4 MPa;

[0099] Poisson's ratio: 0.3;

[0100] Linear expansion coefficient: 1.2×10 -5 / ℃;

[0101] Density: ρ = 7.85 × 10 3 kg / m 3 ;

[0102] The steel structure strength design value of Q460C with a thickness of 40﹤t≦63mm is 355Mpa, and the shear strength design value is 205MPa; the steel structure strength design value of Q460C with a thickness of 16﹤t≦40mm is 390Mpa, and the shear strength design value is 225MPa; the steel structure strength design value of Q460C with a thickness of t≦16mm is 410MPa, and the shear strength design value is 235Mpa.

[0103] 2.2.Dead load

[0104] Phase I constant load: Steel bulk density is 78.5kN / m 3 ;

[0105] Phase II paving: The weight of the bridge deck glass paving is 2.5kN / m 2 ;

[0106] Railing weight: 1.0kN / m per side;

[0107] Counterweight: The effective weight is set to maintain transverse balance and increase impedance.

[0108] 2.3. Crowd load

[0109] This bridge is positioned as a pedestrian bridge.

[0110] 1) Crowd load: calculated in accordance with Article 3.1.3 of the Technical Specifications for Urban Pedestrian Bridges and Pedestrian Tunnels (CJJ69-95): W = (5-2 × (100-20) / 80) × (20-2) / 20 = 2.7 kPa.

[0111] 2.4. Effect of temperature

[0112] The uniform temperature change is determined according to 4.3.12 of the General Specifications for Design of Highway Bridges and Culverts (JTG D60-2015). Taking warm areas as an example, the design construction closure temperature is 20°C, the highest temperature is 46°C, and the lowest temperature is -9°C. The calculated temperature difference is +26°C and -29°C.

[0113] 2.5. Wind load

[0114] According to the provisions of 3.1.9 of the Technical Specifications for Urban Pedestrian Bridges and Pedestrian Tunnels (CJJ 69-95), the basic wind pressure value for a return period of 100 years is 0.50 kN / m 2 .

[0115] 2.6. Load combinations

[0116] According to Article 4.1.5 of the General Specifications for Highway Bridge and Culvert Design, the load combinations and coefficients are shown in Table 1:

[0117] Table 1 Load combination and coefficient table

[0118]

[0119]

[0120] 3.Superstructure verification

[0121] 3.1. Model diagram

[0122] The structural analysis was performed using the finite element calculation program "MidasCivil." Loads included deadweight, secondary dead load, overall steel structure temperature rise and fall, wind load, and crowd load, and the overall structure was analyzed for dynamic characteristics. Compliance with regulatory requirements was verified based on the load combination requirements. The main verifications included strength, overall stability, deflection, and natural frequency. Steel beams were simulated using beam elements, while main cables, wind-resistant cables, and support suspenders were simulated using cable elements. See [Note: The following appears to be unrelated text and should likely be omitted.] Figure 3 3D model of the entire bridge.

[0123] 3.2. Strength verification

[0124] like Figures 4-6As shown in the figure, under the most unfavorable combined load, the maximum normal stress of the steel beam is 272.2MP, and the maximum shear stress of the steel beam is 55.0MP. According to the "Steel Structure Design Standard" (GB50017-2017), the steel structure strength design value of Q460C with a thickness of 40﹤t≦63mm is 355Mpa, and the shear strength design value is 205MPa; the steel structure strength design value of Q460C with a thickness of 16﹤t≦40mm is 390Mpa, and the shear strength design value is 225MPa; the steel structure strength design value of Q460C with a thickness of t≦16mm is 410MPa, and the shear strength design value is 235Mpa. The maximum stress of the cable is 804.9 MPa. According to the "Design Code for Highway Suspension Bridges" (JTGT D65-05-2015), the design value of the tensile strength of 1770 galvanized high-strength steel wire is 956.8 MPa, so the structure meets the strength requirements.

[0125] 3.3. Structural deformation under moving loads

[0126] According to the "Design Code for Highway Suspension Bridges" (JTGT D65-05-2015), the maximum allowable vertical deflection of a suspension bridge calculated by moving load is L / 250, and the maximum allowable lateral displacement calculated by crosswind load is L / 150.

[0127] like Figures 7-8 As shown in the figure, the maximum deflection of the entire bridge under the action of crowd load is 740.2mm, and the allowable deflection for spans less than 380m is 1520mm; the maximum deflection of the entire bridge under the action of wind load is 82.4mm, and the allowable deflection for spans less than 380m is 2533.3mm, that is, the deformation of the structure under movement meets the requirements of the specification.

[0128] 3.4. Calculation of natural frequency

[0129] In the analysis of structural dynamic characteristics, the natural frequency and vibration mode of the structure are the most basic dynamic characteristics. The dynamic calculation results of this design are as follows:

[0130] Table 2 Full-bridge dynamic characteristic characteristic value analysis table

[0131]

[0132]

[0133]

[0134] Figure 9 This is the first-order modal diagram. The vibration mode shows overall torsional vibration with a natural frequency of 0.31 Hz. Figure 10 This is the second-order mode diagram. The vibration mode shows overall symmetrical vertical vibration with a natural frequency of 0.33 Hz. Figure 11This is the third-order mode diagram. The vibration mode shows overall symmetrical lateral vibration, and the natural frequency is 0.35Hz. Figure 12 This is the fourth-order mode diagram. The vibration mode shows overall antisymmetric vertical vibration with a natural frequency of 0.40 Hz. Figure 13 This is the third-order mode diagram, and the vibration mode shows overall antisymmetric lateral vibration with a natural frequency of 0.52 Hz. As shown in Table 2, the natural frequencies of the first 65 modes of the structure are all relatively low. According to Article 2.5.4 of the "Technical Specifications for Urban Pedestrian Bridges and Pedestrian Underpasses" (CJJ69-1995), the vertical natural frequency of the pedestrian bridge superstructure should not be less than 3 Hz. Therefore, it is necessary to conduct human-induced vibration analysis on bridge structures with vertical and lateral natural frequencies within the sensitive range. Based on the acceleration response under pedestrian excitation loads and the modal analysis results, a corresponding vibration reduction system can be designed to ensure that the vibration acceleration meets the relevant comfort requirements.

[0135] 3.5. Stability verification

[0136] like Figure 14 As shown in the figure, under the basic combined action envelope, the main cable, wind-resistant cable and suspender are all in a tensile stable state. The minimum tensile stress is 36.1 MPa at the suspender, and there is no compressive instability.

[0137] 3.6. Summary of support reaction forces

[0138] (1) Figures 15-18 As shown, the calculation results of the full bridge support reaction force are as follows, and the detailed data are shown in Table 3:

[0139] Table 3 Summary of full bridge reaction forces

[0140]

[0141]

[0142] Summary: The structural analysis of the spatial combination high-altitude suspended pedestrian landscape suspension bridge was carried out using the finite element calculation program "MidasCivil". The loads considered include deadweight, second-phase paving, second-phase railings, counterweights, overall steel structure temperature rise and fall, wind loads and crowd loads, and the dynamic characteristics of the overall structure were analyzed. After verification, the structural strength, deflection and overall stability all meet the requirements of the corresponding specifications. Considering that the bridge structure is relatively soft and the natural vibration frequency of the structure is low, it is necessary to design a corresponding vibration reduction system in the later stage to make the wind vibration and human-induced vibration meet the relevant comfort requirements. At the same time, the tension at the anchor end of the main cable of the bridge is large, which also places high demands on the anchor foundation and the geology of the bridge site. In short, the bridge structure of the utility model meets the design requirements of the bridge.

[0143] In summary, this multi-dimensional space suspension bridge provides a series of unique walking experiences that combine innovative design, visual impact, and psychological challenges to create an unforgettable adventure for visitors. The following is a detailed summary of these unique walking experiences:

[0144] Suspension bridges often use high-strength tempered glass. This transparent material allows visitors to clearly see the abyss or valley below. Walking on them, visitors will feel as if they are suspended in the air, an experience that is both thrilling and exciting.

[0145] Complex Spatial Exploration: Unlike traditional straight or simple curved plank roads, the multi-dimensional suspension bridge offers visitors a novel experience of traversing and exploring space through height differences and walking paths. Each step may lead to a new height or direction, making the journey full of unknowns and surprises.

[0146] Panoramic Viewing: Thanks to the multi-dimensional layout of the plank road, visitors can appreciate the surrounding natural scenery from multiple angles as they walk. Whether it is the majestic mountains, the lush forests, or the tranquility of the lakes, they can all be seen from a whole new perspective.

[0147] Psychological Challenges and Overcoming Them: For many tourists, walking on a transparent suspension bridge is a psychological challenge. However, it is precisely this challenge that prompts people to overcome their inner fears. When they finally stand on the plank road and overlook the scenery below, they will feel an unprecedented sense of accomplishment and self-confidence.

[0148] Rich Functional Experience: Multi-dimensional suspension bridges often feature observation decks, rest areas, and other functional areas at various locations. These designs not only provide places to rest but also create diverse experience spaces for visitors, such as taking photos, enjoying the scenery, or participating in interactive activities.

[0149] In summary, the Multi-Dimensional Suspension Bridge, with its unique design and innovative elements, offers visitors a walking experience that combines excitement, exploration, sightseeing, and psychological challenges. This experience not only enriches the activities at the tourist attraction but also becomes a major attraction for tourists.

[0150] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention, such as the number of main viewing platforms, the cantilever height of the cantilevered viewing platform, the size of the main viewing platform and the cantilevered viewing platform, and the selection of structural materials shall be designed according to actual conditions; the main frame of the main viewing platform and the main frame of the cantilevered viewing platform shall adopt structural styles and shapes such as square, circular, elliptical, hexagonal and other regular geometric shapes or special-shaped structures, shall all be included in the scope of protection of the present invention.

Claims

1. A spatial combination high-altitude suspended pedestrian landscape suspension bridge, characterized by: The bridge body comprises a bridge main body fixedly connected between a building structure or a natural rock mass; The bridge body includes at least two main viewing platforms, which are connected to a main channel, which is connected to a building structure or a natural rock mass, and is an entrance and exit passage for tourists; at least one cantilevered viewing platform is provided around the main viewing platform, a first viewing channel is provided between the main viewing platform and the cantilevered viewing platform, and the cantilevered viewing platform is connected to the next main viewing platform through a second viewing channel, the main viewing platforms are located on the same horizontal plane, and the centers of the main viewing platforms are located on the same straight line, the main cables are connected below the main viewing platforms, wind-resistant cables are provided on both sides of the bridge body, and inclined cables are provided between the main cables and the wind-resistant cables.

2. The spatial combination high-altitude suspended pedestrian landscape suspension bridge according to claim 1 is characterized by: The plane where the cantilevered viewing platform is located and the plane where the main viewing platform is located are located on different spatial planes.

3. The spatial combination high-altitude suspended pedestrian landscape suspension bridge according to claim 2 is characterized by: There are two cantilevered viewing platforms, one of which is located below the main viewing platform; the other is located above the main viewing platform and is symmetrically arranged along the center of the main viewing platform.

4. The spatial combination high-altitude suspended pedestrian landscape suspension bridge according to claim 3 is characterized by: The cantilevered viewing platform above is connected to the next main viewing platform through the second viewing passage.

5. The spatial combination high-altitude suspended pedestrian landscape suspension bridge according to claim 3 is characterized by: The centers of the cantilevered viewing platforms are located on the same vertical plane in a direction perpendicular to the main body of the bridge; the centers of the cantilevered viewing platforms are located on the same curved surface, and the curved surface coincides with the center of the wind-resistant cable.

6. The spatial combination high-altitude suspended pedestrian landscape suspension bridge according to claim 1 is characterized by: A plurality of supporting booms are provided below the cantilevered viewing platform, and the lower ends of the supporting booms are connected to wind-resistant cables.

7. The spatial combination high-altitude suspended pedestrian landscape suspension bridge according to claim 6 is characterized by: The lower end of each supporting boom is connected to the same point of the wind-resistant cable, and the upper end of the supporting boom is connected to the cantilevered viewing platform.

8. The spatial combination high-altitude suspended pedestrian landscape suspension bridge according to claim 1 is characterized by: The main viewing platform includes a main frame, the edge of the main frame is provided with a main landscape enclosure or guardrail, and the bottom of the main frame is provided with a main viewing platform support platform, and the main viewing platform support platform is fixedly connected to the first viewing channel and the second viewing channel.

9. The spatial combination high-altitude suspended pedestrian landscape suspension bridge according to claim 1 is characterized by: The cantilevered landscape platform includes a cantilevered frame, the edge of the cantilevered frame is provided with a cantilevered landscape enclosure or guardrail, and the bottom of the cantilevered frame is provided with a cantilevered support platform, which is fixedly connected to the first viewing channel and the second viewing channel.

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