Horizontal channel for catwalk of suspension bridge

Abstract

The utility model provides a horizontal channel for a catwalk of a suspension bridge, and relates to the technical field of bridge construction. The horizontal channel for the suspension bridge catwalk comprises a walking supporting structure and a suspension structure. The walking supporting structure is arranged below the catwalk and connected between tower bodies of bridge main towers on the two sides of a midspan of the catwalk. The height difference between the middle of the catwalk midspan and the walking supporting structure below the catwalk midspan is not larger than a preset value, and the preset value enables constructors to climb to the middle of the catwalk midspan from the walking supporting structure below the middle of the catwalk midspan; the suspension structure is connected between the walking supporting structure and the catwalk. According to the passageway, through the walking supporting structure, constructors can reach one end of the walking supporting structure through the construction elevator on one side of the bridge main tower firstly and then walk to the midspan of the catwalk along the walking supporting structure, and compared with the path that the constructors reach the top of the bridge main tower firstly and then walk to the midspan of the catwalk along the catwalk; the walking distance and the height difference can be effectively shortened, and the construction efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, and in particular to a horizontal passage for a catwalk of a suspension bridge. Background Technology

[0002] A catwalk is a linear temporary construction path erected below and parallel to the main cable during the construction of a suspension bridge. It serves as high-altitude scaffolding for construction workers and as a construction platform for the main cable system and even the entire superstructure of the suspension bridge. Catwalks typically have a U-shaped cross-section, are long and narrow, and tend to sway, hence the name "catwalk."

[0003] like Figure 1 As shown, with the top of the main tower 1 of the suspension bridge as the dividing point, the catwalk 2 is divided into the side span 20 and the middle span 21. The path for construction workers to enter and exit the middle of the catwalk 2 is usually as follows: Figure 1 Following the direction of the arrow, first take the construction elevator installed on one side of the main tower 1 to the top of the main tower 1 of the suspension bridge, then enter the catwalk 2, and then walk from the main tower 1 to the middle of the catwalk 2.

[0004] However, the main span of suspension bridges is usually large, resulting in a significant height difference between the middle of the middle span 21 of catwalk 2 and the top of the main tower 1. For example, when the main span of a suspension bridge is 2000m, the height difference of catwalk 2 is about 200m. Due to the large height difference between the middle of the middle span 21 of catwalk 2 and the top of the main tower 1, the access path for construction workers is steep and the distance is long, which consumes a lot of physical strength and time, affecting construction efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a horizontal passage for the catwalk of a suspension bridge, so as to alleviate the technical problem that the main span of a suspension bridge is usually large, resulting in a large height difference between the middle of the middle span of the catwalk and the top of the main tower. This leads to steep and long access paths for construction personnel, which consumes a lot of physical strength and time and affects construction efficiency.

[0006] In the first aspect, this utility model provides a horizontal passage for a catwalk on a suspension bridge, including a walking support structure and a suspension structure;

[0007] The walking support structure is located below the catwalk and is connected between the tower bodies of the main bridge towers on both sides of the middle span of the catwalk.

[0008] The height difference between the middle section of the catwalk and the walking support structure below it is not greater than a preset value. This preset value is used to enable construction workers to climb from the walking support structure below the middle section of the catwalk to the middle section of the catwalk.

[0009] The suspension structure connects the walking support structure and the catwalk.

[0010] In an optional embodiment, the walking support structure includes a mesh that extends horizontally and has a groove-shaped longitudinal cross-section.

[0011] In an optional embodiment, the walking support structure further includes a plurality of load-bearing cables, all of which extend along the extension direction of the catwalk and are spaced apart and installed below the mesh.

[0012] In an optional embodiment, the walking support structure further includes a plurality of handrail cables, all of which extend along the extension direction of the catwalk, and at least one handrail cable is installed on one side of the mesh and at least one handrail cable is installed on the other side of the mesh.

[0013] In an optional embodiment, the walking support structure further includes a plurality of support beams, which are spaced apart along the extension direction of the catwalk, and each support beam is fixed below the mesh.

[0014] In an optional embodiment, the suspension structure includes a plurality of first slings and a plurality of second slings;

[0015] Multiple first slings are spaced apart along the extension direction of the catwalk, and each first sling is connected between the side of the catwalk away from the central axis of the bridge deck and the side of the walking support structure.

[0016] Multiple second slings are spaced apart along the extension direction of the catwalk, and each second sling is connected between the central axis of the catwalk and the other side of the walking support structure.

[0017] In an optional embodiment, the bottom of the walking support structure is located above the bridge deck below the catwalk.

[0018] In an optional embodiment, a connecting platform is also included, which connects the construction elevator on one side of the main tower of the bridge to the end of the traveling support structure near the main tower of the bridge.

[0019] In an optional embodiment, a conversion frame with an internal walking passage is also included. The conversion frame is located above the connecting platform and is fixed to the side of the main tower of the bridge near the walking support structure. The walking support structure is connected to the conversion frame.

[0020] In an optional embodiment, a first weight is connected below the suspension structure;

[0021] One end of the walking support structure is connected to an elastic element between itself and the adjacent main tower of the bridge, and / or the other end of the walking support structure extends downward after bypassing a steering element on the adjacent main tower of the bridge, and is connected to a second weight. The horizontal passage for a catwalk on a suspension bridge provided by this utility model includes a walking support structure and a suspension structure; the walking support structure is located below the catwalk and is connected between the tower bodies of the main towers on both sides of the middle span of the catwalk; the height difference between the middle of the middle span of the catwalk and the walking support structure below it is no greater than a preset value, which is used to allow construction personnel to climb from the walking support structure below the middle of the middle span of the catwalk to the middle of the middle span of the catwalk; the suspension structure connects the walking support structure and the catwalk. This utility model provides a horizontal passageway for catwalks on suspension bridges. During construction, the walking support structure is first suspended below the middle span of the catwalk via a suspension structure. Both ends of the walking support structure are connected to the tower bodies of the main bridge towers on either side of the middle span (the connection point between the walking support structure and the tower body is below the top of the main tower). At this point, the walking support structure is stably positioned below the catwalk, supported by the main tower and the suspension structure. When construction workers need to reach the middle of the middle span, they can first use the construction elevator on one side of the main tower to reach the end of the walking support structure (i.e., the connection point between the walking support structure and the tower body), then enter the walking support structure and use it to reach the middle of the middle span of the catwalk. Since the height difference between the middle of the catwalk and the walking support structure below it is no greater than a preset value, and this preset value is used to allow construction workers to climb from the walking support structure below the middle of the catwalk to the middle of the catwalk, construction workers can directly climb to the middle of the catwalk after reaching the lower part of the middle of the catwalk via the walking support structure. Compared with the existing path of first reaching the top of the main tower of the bridge and then walking along the catwalk to the middle span, this walking process can not only effectively shorten the walking distance, but also reduce the height difference for construction workers during the walking process, thereby effectively saving the physical strength and time of construction workers and improving construction efficiency.

[0022] Compared with the prior art, the horizontal passage for the catwalk of the suspension bridge provided by this utility model has a walking support structure set under the catwalk. This allows construction workers to first reach one end of the walking support structure via the construction elevator on one side of the main tower of the bridge, and then walk along the walking support structure to the middle span of the catwalk. Compared with the path of first reaching the top of the main tower of the bridge and then walking along the catwalk to the middle span, this can effectively shorten the walking distance and height difference, thereby saving personnel's physical strength and time, and effectively improving construction efficiency.

[0023] utility model Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 Side view of the existing main tower and catwalk;

[0026] Figure 2 A side view of the main tower, catwalk, and horizontal passageway for the catwalk of a suspension bridge provided in an embodiment of this utility model;

[0027] Figure 3 A front view of the catwalk, the horizontal passage for the catwalk of the suspension bridge, and a partial bridge deck provided in an embodiment of this utility model;

[0028] Figure 4 for Figure 3 Enlarged diagram of part A in the diagram;

[0029] Figure 5 A top view of the main tower, construction elevator, and horizontal passageway for the catwalk of the suspension bridge provided in an embodiment of this utility model;

[0030] Figure 6 Side view of the main tower, construction elevator, and horizontal passageway for the catwalk of the suspension bridge provided in this embodiment of the utility model;

[0031] Figure 7 A partial side view of the main tower, the transition frame, and the horizontal passageway for the catwalk of the suspension bridge provided in an embodiment of this utility model;

[0032] Figure 8 Another side view of the main tower, catwalk, and horizontal passageway for the catwalk of the suspension bridge provided in an embodiment of the present invention.

[0033] Icons: 1-Main Tower; 10-Construction Elevator; 2-Catwalk; 20-Side Span; 21-Middle Span; 22-Crossway; 3-Traveling Support Structure; 30-Face Net; 31-Load-bearing Cable; 32-Handrail Cable; 33-Supporting Beam; 34-Elastic Component; 35-Second Weight; 36-Swering Component; 4-Suspension Structure; 40-First Suspension Cable; 41-Second Suspension Cable; 42-First Weight; 5-Main Cable; 6-Bridge Deck; 7-Suspension Rod; 8-Connecting Platform; 9-Transfer Frame; 90-Main Tower Connector; 91-Handrail Connector. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0036] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0037] Example:

[0038] like Figure 2 and Figure 3 As shown, the horizontal passage for the catwalk of the suspension bridge provided in this embodiment includes a walking support structure 3 and a suspension structure 4; the walking support structure 3 is located below the catwalk 2, and the walking support structure 3 is connected between the tower bodies of the main towers 1 of the bridge on both sides of the middle span 21 of the catwalk 2; the height difference between the middle part of the middle span 21 of the catwalk 2 and the walking support structure 3 below it is not greater than a preset value, which is used to enable construction personnel to climb from the walking support structure 3 below the middle part of the middle span 21 of the catwalk 2 to the middle part of the middle span 21 of the catwalk 2; the suspension structure 4 is connected between the walking support structure 3 and the catwalk 2.

[0039] The horizontal passage for the catwalk of the suspension bridge provided in this embodiment is applied in the construction of suspension bridges and other bridges. In use, the walking support structure 3 can be suspended below the middle span 21 of the catwalk 2 below the main cable 5 by the suspension structure 4, and the two ends of the walking support structure 3 are respectively connected to the tower body of the bridge main tower 1 on both sides of the middle span 21 of the catwalk 2 (the connection point between the walking support structure 3 and the tower body of the bridge main tower 1 is lower than the top of the bridge main tower 1). At this time, the walking support structure 3 can be stably located below the catwalk 2 by being supported by the bridge main tower 1 and the suspension structure 4.

[0040] When construction workers need to reach the middle of the middle span 21 of catwalk 2, they can follow... Figure 2Following the direction of the arrow, the worker first uses the construction elevator 10 on one side of the main tower 1 of the bridge to reach the end of the traveling support structure 3 (that is, the connection point between the traveling support structure 3 and the tower body of the main tower 1 of the bridge), then enters the traveling support structure 3, and reaches the lower part of the middle span 21 of the catwalk 2 through the traveling support structure 3.

[0041] Since the height difference between the middle section of the catwalk 2 middle span 21 and the walking support structure 3 below it is no greater than a preset value, and this preset value is used to allow construction workers to climb from the walking support structure 3 below the middle section of the catwalk 2 middle span 21 to the middle section of the catwalk 2 middle span 21, construction workers can directly climb to the middle section of the catwalk 2 middle span 21 after reaching the lower part of the middle section of the catwalk 2 middle span 21 via the walking support structure 3. Compared to Figure 1 The existing path shown, which involves first reaching the top of the main tower 1 of the bridge and then walking along the catwalk 2 to the middle span 21, can not only effectively shorten the walking distance but also reduce the elevation difference for construction workers, thereby effectively saving their physical strength and time and improving construction efficiency.

[0042] Compared with the prior art, the horizontal passage for the catwalk of the suspension bridge provided in this embodiment, by setting a walking support structure 3 under the catwalk 2, allows construction workers to first reach one end of the walking support structure 3 via the construction elevator 10 on one side of the main tower 1 of the bridge, and then walk along the walking support structure 3 to the middle span 21 of the catwalk 2. Compared with the path of first reaching the top of the main tower 1 of the bridge and then walking along the catwalk 2 to the middle span 21, it can effectively shorten the walking distance and height difference, thereby saving personnel's physical strength and time, and effectively improving construction efficiency.

[0043] In order to enable construction workers to climb from the walking support structure 3 under the middle of the middle span 21 of the catwalk 2 to the middle of the middle span 21 of the catwalk 2, the above-mentioned preset value is preferably 3 meters in this embodiment.

[0044] Furthermore, the walking support structure 3 provided in this embodiment can adopt a multi-span continuous structure. In order to enable the walking support structure 3 to accommodate multiple people at the same time, for example, when the number of people passing through the walking support structure 3 is 10 to 25, each span of the walking support structure 3 can be 150 meters, and the width of the walking support structure 3 can be 1 to 2.5 meters.

[0045] It should be noted that, in order to minimize the walking distance, such as Figure 2 and Figure 3 As shown, in this embodiment, the preferred walking support structure 3 extends in the horizontal direction. Specifically, as... Figure 4 As shown, the walking support structure 3 includes a mesh 30, which extends horizontally and has a groove-shaped longitudinal section.

[0046] The mesh 30 is used to support pedestrians, and its longitudinal cross-section is grooved, which can improve its support effect on pedestrians. In addition, compared with plate-like structures such as sidewalk slabs, the mesh 30 can effectively reduce the overall weight of the walking support structure 3 while ensuring its stability in supporting pedestrians, thereby reducing the tension of the walking support structure 3 on the catwalk 2 and the main tower 1 of the bridge and reducing the installation requirements of the walking support structure 3.

[0047] Furthermore, such as Figure 4 As shown, the walking support structure 3 also includes multiple load-bearing cables 31, which extend along the extension direction of the catwalk 2 and are installed at intervals below the surface net 30.

[0048] The load-bearing cable 31 is used to support the mesh 30, further improving the stability of the mesh 30 in supporting pedestrians.

[0049] There are no restrictions on the quantity and specifications of the load-bearing cables 31, which can be selected according to actual needs. For example, 3 to 4 load-bearing cables 31 can be used, and the diameter of the load-bearing cables 31 can be 42 mm.

[0050] To ensure the safety of the walking support structure 3, in this embodiment, the safety factor of the load-bearing cable 31 is preferably 3.5, and the cable force of the load-bearing cable 31 is 150 to 350 kN.

[0051] like Figure 4 As shown, the walking support structure 3 also includes multiple handrail cables 32, all of which extend along the extension direction of the catwalk 2, and at least one handrail cable 32 is installed on one side of the net 30 and at least one handrail cable 32 is installed on the other side of the net 30.

[0052] When the handrail cables 32 are installed on both sides of the net 30, they can provide hand support for pedestrians walking on the net 30, effectively improving the safety of the walking support structure 3.

[0053] In addition, the handrail cable 32 can also enhance the structural strength of the mesh 30 and further improve the stability of the walking support structure 3.

[0054] There are no restrictions on the quantity and specifications of the handrail cables 32, which can be selected according to actual needs. For example, six handrail cables 32 can be used, with three handrail cables 32 installed on each side of the face net 30; the diameter of the handrail cables 32 can be 20 mm.

[0055] like Figure 4 As shown, the walking support structure 3 may also include multiple support beams 33, which are distributed at intervals along the extension direction of the cat walkway 2, and each support beam 33 is fixed below the surface net 30.

[0056] The support beam 33 can be fixed below the load-bearing cable 31. The support beam 33 is used to support the netting 30, further improving the structural stability of the netting 30 and its support stability for pedestrians.

[0057] There are no restrictions on the number and spacing of the support beams 33, and they can be selected according to actual needs. For example, the spacing between two adjacent support beams 33 can be 100 to 200 meters, and the sag-to-span ratio between support beams 33 can be 1 / 40 to 1 / 20. In this embodiment, the sag-to-span ratio between support beams 33 is preferably 1 / 30.

[0058] It should be noted that, based on the arrangement of the main cables 5 above the bridge deck 6 (i.e., there are two main cables 5, arranged parallel to each other above the sides of the bridge deck 6), the existing catwalks 2 are also usually two parallel catwalks, each located below one of the two main cables 5. In this case, to facilitate the movement of construction workers between the two parallel catwalks 2, such as... Figure 3 As shown, a cross passage 22 connects the two catwalks 2. The cross passage 22 extends along the width of the bridge deck 6 and is located above the bridge deck 6.

[0059] To facilitate the installation of the walking support structure 3 and to prevent the walking support structure 3 from affecting the stability of the catwalk 2, this embodiment preferably uses a suspension structure 4 connected between the walking support structure 3 and the cross passage 22 of the catwalk 2.

[0060] like Figure 3 and Figure 4 As shown, the suspension structure 4 includes multiple first suspension cables 40 and multiple second suspension cables 41; the multiple first suspension cables 40 are distributed at intervals along the extension direction of the catwalk 2, and each first suspension cable 40 is connected between the side of the catwalk 2 away from the central axis of the bridge deck 6 and the side of the walking support structure 3; the multiple second suspension cables 41 are distributed at intervals along the extension direction of the catwalk 2, and each second suspension cable 41 is connected between the central axis of the catwalk 2 and the other side of the walking support structure 3.

[0061] At this time, the two sides of the walking support structure 3 are connected to the catwalk 2 through the first suspension cable 40 and the second suspension cable 41 respectively, which can effectively ensure the balance and stability of the walking support structure 3.

[0062] The first suspension cable 40 connects the side of the catwalk 2 away from the central axis of the bridge deck 6 and the side of the walking support structure 3, while the second suspension cable 41 connects the central axis of the catwalk 2 and the other side of the walking support structure 3. Figure 3 As shown, the walking support structure 3 can be positioned below the catwalk 2 and close to the outer side of the bridge deck 6. This arrangement allows the walking support structure 3 to be positioned closer to the catwalk 2. Figure 5 and Figure 6The construction elevator 10 on one side of the main tower 1 of the bridge shown in the figure facilitates the shortening of the path for construction personnel to reach the walking support structure 3 from the construction elevator 10, thereby further improving the usability of the horizontal passageway used for the catwalk of the suspension bridge.

[0063] The number of multiple first slings 40 and multiple second slings 41 can be the same, and the multiple first slings 40 are distributed at equal intervals, and the multiple second slings 41 are distributed at equal intervals.

[0064] Furthermore, such as Figure 3 and Figure 4 As shown, a suspender 7 can also be connected to the central axis of the catwalk 2. The end of the suspender 7 away from the catwalk 2 abuts against the bridge deck 6 below the central axis of the catwalk 2. The second suspender 41 is arranged parallel to one side of the suspender 7. The suspender 7 can improve the stability of the catwalk 2.

[0065] In this embodiment, as Figure 3 and Figure 4 As shown, the bottom of the walking support structure 3 is located above the bridge surface 6 below the catwalk 2.

[0066] When the bottom of the walking support structure 3 is located above the bridge deck 6 below the catwalk 2, it facilitates the movement of construction workers between the walking support structure 3 and the bridge deck 6, effectively improving the usability of the horizontal passageway used for the suspension bridge catwalk.

[0067] like Figure 5 and Figure 6 As shown, the horizontal passage for the catwalk of the suspension bridge provided in this embodiment also includes a connecting platform 8, which is connected between the construction elevator 10 on one side of the main tower 1 of the bridge and the end of the walking support structure 3 near the main tower 1 of the bridge.

[0068] The connecting platform 8 is used to provide walking support for construction workers between the construction elevator 10 and the walking support structure 3, so that construction workers can get on the walking support structure 3 after getting off the construction elevator 10.

[0069] The connecting platform 8 can be a plate structure, or a combined structure including a support plate and a support beam. The support beam is fixedly connected to the main tower 1 of the bridge, and the support plate is installed on the support beam.

[0070] like Figure 6 and Figure 7 As shown, the horizontal passage for the catwalk of the suspension bridge provided in this embodiment may also include a conversion frame 9 with a walking passage inside. The conversion frame 9 is located above the connecting platform 8 and is fixed to the side of the main tower of the bridge near the walking support structure 3. The walking support structure 3 is connected to the conversion frame 9.

[0071] The conversion frame 9 can provide access for construction workers on the connecting platform 8, further improving the safety of construction workers walking at heights.

[0072] Furthermore, such as Figure 7 As shown, the transition frame 9 and the main tower 1 of the bridge can be connected to each other through the main tower connector 90. When the walking support structure 3 includes multiple handrail cables 32, each handrail cable 32 can be connected to the transition frame 9 through the handrail connector 91.

[0073] In summary, the horizontal passage for the catwalk of the suspension bridge provided in this embodiment can effectively shorten the path for construction personnel to reach the middle of the mid-span 21 of the catwalk 2 by suspending the walking support structure 3 below the catwalk 2. When it is necessary to install this horizontal passage for the catwalk of the suspension bridge below the catwalk 2, the first suspension cable 40 and the second suspension cable 41 can be connected to the horizontal passage 22 between the two parallel catwalks 2. A support beam 33 can be connected between the bottom ends of the first suspension cable 40 and the bottom ends of the second suspension cable 41. Then, the load-bearing cable 31 can be installed above the support beam 33 by using the pilot cable traction method. Handrail cables 32 can be installed on both sides of the first suspension cable 40 and the second suspension cable 41 that are close to each other. Then, a surface net 30 can be laid above the load-bearing cable 31 and inside the handrail cables 32. Subsequently, a construction elevator 10 and a connecting platform 8 can be installed on one side of the main tower 1 of the bridge, and the connecting platform 8 can be connected to the walking support structure 3. Then, a conversion frame 9 can be installed on the connecting platform 8.

[0074] It should also be noted that, due to the poor stability of the catwalk during use, it is prone to swaying in the wind, with a large amplitude of swing. Therefore, if... Figure 8 As shown, a first weight 42 can be connected to the lower part of the suspension structure 4; an elastic element 34 is connected between one end of the walking support structure 3 and the adjacent main tower 1 of the bridge, and / or, the other end of the walking support structure 3 extends downward after passing around the steering element 36 on the adjacent main tower 1 of the bridge, and is connected to a second weight 35.

[0075] The steering component 36 can be a fixed pulley fixed to the main tower 1 of the bridge. Both the first weight 42 and the second weight 35 can be counterweights, and the elastic component can be a spring.

[0076] During use, the first weight 42, the elastic element 34, and the second weight 35 can all increase the damping of the cat track, thereby reducing the swing amplitude of the cat track.

[0077] There can be multiple first weights 42, which are connected to the lower part of the suspension structure 4 by ropes or other connecting structures. There are no restrictions on the number, size, and distribution of the first weights 42, which can be determined according to the dynamic characteristics of the catwalk.

[0078] When the walking support structure 3 includes multiple load-bearing cables 31 and multiple handrail cables 32, and each handrail cable 32 is interconnected with the conversion frame 9 via a handrail connector 91, an elastic element 34 can be connected between one end of each load-bearing cable 31 and the conversion frame 9, and an elastic element 34 can also be connected between one end of each handrail cable 32 and its corresponding handrail connector 91. Alternatively, a steering element 36 can be provided on both the conversion frame 9 and each handrail connector 91, and the other end of each load-bearing cable 31 and the other end of each handrail cable 32 extends downward after passing over their respective steering elements 36, and then is connected to a second weight 35.

[0079] The elastic parameters of the elastic element 34 and the weight of the second weight 35 are not limited and can be determined based on the stress conditions of the load-bearing cable 31, the handrail cable 32 and the dynamic characteristics of the catwalk.

[0080] As can be seen, by setting the first weight 42, the elastic element 34 and the second weight 35, this embodiment can effectively increase the damping during the use of the catwalk 2, thereby effectively improving the wind resistance stability of the catwalk 2 and reducing the swaying amplitude of the catwalk 2.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A horizontal passageway for a catwalk on a suspension bridge, characterized in that, It includes a walking support structure (3) and a suspension structure (4); The walking support structure (3) is located below the catwalk (2), and the walking support structure (3) is connected between the tower bodies of the main towers (1) on both sides of the middle span (21) of the catwalk (2); The height difference between the middle of the middle span (21) of the catwalk (2) and the walking support structure (3) below it is not greater than a preset value. This preset value is used to enable construction workers to climb from the walking support structure (3) below the middle span (21) of the catwalk (2) to the middle of the middle span (21). The suspension structure (4) is connected between the walking support structure (3) and the catwalk (2).

2. The horizontal passageway for a catwalk on a suspension bridge according to claim 1, characterized in that, The walking support structure (3) includes a mesh (30) that extends horizontally and has a groove-shaped longitudinal section.

3. The horizontal passageway for a catwalk on a suspension bridge according to claim 2, characterized in that, The walking support structure (3) also includes multiple load-bearing cables (31), which extend along the extension direction of the catwalk (2) and are installed at intervals below the surface net (30).

4. The horizontal passageway for a catwalk on a suspension bridge according to claim 3, characterized in that, The walking support structure (3) also includes a plurality of handrail cables (32), all of which extend along the extension direction of the catwalk (2), and at least one handrail cable (32) is installed on one side of the mesh (30), and at least one handrail cable (32) is installed on the other side of the mesh (30).

5. The horizontal passageway for a catwalk on a suspension bridge according to claim 2, characterized in that, The walking support structure (3) also includes multiple support beams (33), which are spaced apart along the extension direction of the cat walkway (2), and each support beam (33) is fixed below the mesh (30).

6. The horizontal passageway for a catwalk on a suspension bridge according to any one of claims 1-5, characterized in that, The suspension structure (4) includes a plurality of first suspension cables (40) and a plurality of second suspension cables (41); Multiple first slings (40) are spaced apart along the extension direction of the catwalk (2), and each first sling (40) is connected between the side of the catwalk (2) away from the central axis of the bridge deck (6) and the side of the walking support structure (3); Multiple second slings (41) are spaced apart along the extension direction of the catwalk (2), and each second sling (41) is connected between the central axis of the catwalk (2) and the other side of the walking support structure (3).

7. The horizontal passageway for a catwalk on a suspension bridge according to any one of claims 1-5, characterized in that, The bottom of the walking support structure (3) is located above the bridge surface (6) below the catwalk (2).

8. The horizontal passageway for a catwalk on a suspension bridge according to any one of claims 1-5, characterized in that, It also includes a connecting platform (8), which is connected between the construction elevator (10) on one side of the main tower (1) of the bridge and the end of the traveling support structure (3) near the main tower (1) of the bridge.

9. The horizontal passageway for a catwalk on a suspension bridge according to claim 8, characterized in that, It also includes a conversion frame (9) with an internal walking passage. The conversion frame (9) is located above the connecting platform (8) and is fixed to the side of the main tower of the bridge (1) near the walking support structure (3). The walking support structure (3) is connected to the conversion frame (9).

10. The horizontal passageway for a catwalk on a suspension bridge according to any one of claims 1-5, characterized in that, The first weight (42) is connected to the lower part of the suspension structure (4); One end of the walking support structure (3) is connected to the adjacent main tower of the bridge (1) by an elastic element (34), and / or the other end of the walking support structure (3) extends downward after bypassing the steering element (36) on the adjacent main tower of the bridge (1) and is connected to a second weight (35).

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