Horizontal channel for catwalk of suspension bridge

Abstract

The invention provides a horizontal channel for a suspension bridge catwalk, 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] The invention relates to the technical field of bridge construction, in particular to a horizontal channel used for a catwalk of a suspension bridge. Background Art

[0002] A catwalk is a temporary construction path erected under the main cable and parallel to the main cable during the construction of a suspension bridge. It is a high-altitude scaffolding for construction workers to carry out construction work, and is a construction platform for the main cable system and even the entire superstructure of the suspension bridge. The cross-section of a catwalk is usually U-shaped, narrow and long, and a little shaky, so it is called a "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 a side span 20 and a middle span 21. The path for construction workers to enter and exit the middle of the catwalk 2 is usually as follows Figure 1 Follow the direction of the arrow shown, 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 a suspension bridge is usually large, resulting in a large height difference between the middle of the middle span 21 of the catwalk 2 and the top of the main tower 1. For example, when the main span of the suspension bridge is 2000m, the height difference of the catwalk 2 is about 200m. Due to the large height difference between the middle of the middle span 21 of the catwalk 2 and the top of the main tower 1, the construction workers have to go in and out of the steep path and long distance, which consumes a lot of physical strength and time, affecting the construction efficiency. Summary of the invention

[0005] The object of the present invention is to provide a horizontal passage for a catwalk of a suspension bridge, so as to alleviate the technical problem in the prior art that the main span of a suspension bridge is usually large, resulting in a large height difference between the middle of the mid-span and the top of the main tower of the catwalk, which in turn causes a steep entry and exit path and a long distance for construction workers, consuming a lot of physical strength and time, and affecting construction efficiency.

[0006] In a first aspect, the present invention provides a horizontal passage for a suspension bridge catwalk, comprising a walking support structure and a suspension structure;

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

[0008] The height difference between the middle of the catwalk mid-span and the walking support structure below it is not greater than a preset value, and the preset value is used to enable construction workers to climb from the walking support structure below the middle of the catwalk mid-span to the middle of the catwalk mid-span;

[0009] The suspension structure is connected between the walking support structure and the catwalk.

[0010] In an optional embodiment, the walking support structure includes a surface mesh, the surface mesh extends in a horizontal direction, and a longitudinal cross-section of the surface mesh is groove-shaped.

[0011] In an optional embodiment, the walking support structure further includes a plurality of load-bearing cables, wherein the plurality of load-bearing cables all extend along an extension direction of the catwalk, and the plurality of load-bearing cables are installed at intervals below the surface net.

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

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

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

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

[0016] A plurality of the second slings are distributed at intervals along the extension direction of the catwalk, and each of the second slings 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 further included, wherein the connecting platform is connected between a construction elevator on one side of the main tower of the bridge and an end of a walking support structure close to the main tower of the bridge.

[0019] In an optional embodiment, it also includes a conversion frame with a walking passage inside, the conversion frame is arranged above the connecting platform, and the conversion frame is fixed to a side of the main tower of the bridge close to the walking support structure, and 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] An elastic member is connected between one end of the walking support structure and the adjacent bridge main tower, and / or the other end of the walking support structure extends downward after bypassing the steering member on the adjacent bridge main tower, and is connected to a second weight. The horizontal passage for the catwalk of a suspension bridge provided by the present invention includes a walking support structure and a suspension structure; the walking support structure is arranged below the catwalk, and the walking support structure is connected between the tower bodies of the bridge main towers on both sides of the catwalk mid-span; the height difference between the middle of the catwalk mid-span and the walking support structure below it is not greater than a preset value, and the preset value is used to enable construction workers to climb from the walking support structure below the middle of the catwalk mid-span to the middle of the catwalk mid-span; the suspension structure is connected between the walking support structure and the catwalk. The horizontal channel for the catwalk of a suspension bridge provided by the present invention is applied in the construction process of bridges such as suspension bridges. During use, the walking support structure can be first suspended below the catwalk mid-span through a suspension structure, and the two ends of the walking support structure are respectively connected to the tower bodies of the bridge main towers on both sides of the catwalk mid-span (the connection point between the walking support structure and the tower body of the bridge main tower is lower than the top of the bridge main tower). At this time, the walking support structure is supported by the bridge main tower and the suspension structure, and can be stably located below the catwalk. When the construction personnel need to reach the middle of the catwalk mid-span, they can first reach the end of the walking support structure (that is, the connection point between the walking support structure and the tower body of the bridge main tower) through the construction elevator on one side of the bridge main tower, and then enter the walking support structure, and reach the middle of the catwalk mid-span below through the walking support structure. Since the height difference between the middle part of the catwalk mid-span and the walking support structure below it is not greater than a preset value, and the preset value is used to enable construction workers to climb from the walking support structure below the middle part of the catwalk mid-span to the middle part of the catwalk mid-span, the construction workers can directly climb to the middle part of the catwalk mid-span after reaching the bottom of the middle part of the catwalk mid-span through 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 mid-span, this walking process can not only effectively shorten the walking distance, but also reduce the height difference of the construction workers during the walking process, thereby effectively saving the physical strength and time of the construction workers, and thus improving construction efficiency.

[0022] Compared with the prior art, the horizontal passage for the catwalk of a suspension bridge provided by the present invention arranges a walking support structure under the catwalk, so that construction workers can first reach one end of the walking support structure through 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, the walking distance and height difference can be effectively shortened, thereby saving workers' physical strength and time, and effectively improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A side view of the existing main tower and catwalk;

[0025] Figure 2 A side view of a main tower, a catwalk, and a horizontal passage for a suspension bridge catwalk provided by an embodiment of the present invention;

[0026] Figure 3 A catwalk provided by an embodiment of the present invention, a horizontal passage for a suspension bridge catwalk, and a front view of a partial bridge deck;

[0027] Figure 4 for Figure 3 A magnified schematic diagram of part A in FIG.

[0028] Figure 5 A top view of a main tower, a construction elevator, and a horizontal passage for a suspension bridge catwalk provided by an embodiment of the present invention;

[0029] Figure 6 A side view of a main tower, a construction elevator, and a horizontal passage for a suspension bridge catwalk provided by an embodiment of the present invention;

[0030] Figure 7 A partial side view of a main tower, a transfer frame and a horizontal passage for a suspension bridge catwalk provided by an embodiment of the present invention;

[0031] Figure 8 Another side view of the main tower, catwalk and horizontal passage for the catwalk of a suspension bridge provided in an embodiment of the present invention.

[0032] Icons: 1-main tower; 10-construction elevator; 2-catwalk; 20-side span; 21-middle span; 22-cross passage; 3-walking support structure; 30-surface net; 31-load-bearing cable; 32-handrail cable; 33-support beam; 34-elastic member; 35-second weight; 36-steering member; 4-suspension structure; 40-first sling; 41-second sling; 42-first weight; 5-main cable; 6-bridge deck; 7-suspender rod; 8-connecting platform; 9-conversion frame; 90-main tower connector; 91-handrail connector. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0034] 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 invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0036] Example:

[0037] like Figure 2 and Figure 3 As shown, the horizontal channel 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 arranged below the catwalk 2, and the walking support structure 3 is connected between the tower bodies of the bridge main towers 1 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, and the preset value is used to enable construction workers 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.

[0038] The horizontal channel for the catwalk of a suspension bridge provided in this embodiment is applied in the construction process of suspension bridges and other bridges. During use, the walking support structure 3 can be first suspended below the middle span 21 of the catwalk 2 below the main cable 5 through the suspension structure 4, and the two ends of the walking support structure 3 are respectively connected to the tower body of the main tower 1 of the bridge 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 main tower 1 of the bridge is lower than the top of the main tower 1 of the bridge). At this time, the walking support structure 3 is supported by the main tower 1 of the bridge and the suspension structure 4, and can be stably located below the catwalk 2.

[0039] When construction workers need to reach the middle of the middle span 21 of catwalk 2, they can Figure 2In the direction of the arrow in the figure, first reach the end of the walking support structure 3 (that is, the connection point between the walking support structure 3 and the tower body of the bridge main tower 1) through the construction elevator 10 on one side of the bridge main tower 1, then enter the walking support structure 3, and reach the lower middle part of the middle span 21 of the catwalk 2 through the walking support structure 3.

[0040] Since the height difference between the middle of the catwalk 2 middle span 21 and the walking support structure 3 below it is not greater than the preset value, and the preset value is used to enable the construction personnel to climb from the walking support structure 3 below the middle of the catwalk 2 middle span 21 to the middle of the catwalk 2 middle span 21, the construction personnel can directly climb to the middle of the catwalk 2 middle span 21 after reaching the middle of the catwalk 2 middle span 21 through the walking support structure 3. Figure 1 As shown in the existing path, first reach the top of the main tower 1 of the bridge and then walk along the catwalk 2 to the middle span 21. This walking process can not only effectively shorten the walking distance, but also reduce the height difference of the construction workers during the walking process, thereby effectively saving the physical strength and time of the construction workers, and thus improving the construction efficiency.

[0041] Compared with the prior art, the horizontal passage for the catwalk of a suspension bridge provided in this embodiment is provided with a walking support structure 3 under the catwalk 2, so that construction workers can first reach one end of the walking support structure 3 through 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, the walking distance and height difference can be effectively shortened, thereby saving workers' physical strength and time, and effectively improving construction efficiency.

[0042] In order to enable construction workers to climb from the walking support structure 3 below the middle of the middle span 21 of the catwalk 2 to the middle of the middle span 21 of the catwalk 2, the preset value is preferably 3 meters in this embodiment.

[0043] In addition, the walking support structure 3 provided in this embodiment can adopt a multi-span continuous structure so that the walking support structure 3 can accommodate multiple people passing through at the same time. For example, when the number of people passing through the walking support structure 3 is 10 to 25 people, 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.

[0044] It should be noted that in order to minimize the walking distance, Figure 2 and Figure 3 As shown, in this embodiment, the walking support structure 3 preferably extends in the horizontal direction. Figure 4 As shown, the walking support structure 3 includes a surface mesh 30, which extends in a horizontal direction and has a longitudinal cross-section in a groove shape.

[0045] The surface net 30 is used to support pedestrians, and its longitudinal cross-section is groove-shaped, which can improve its support effect on pedestrians. In addition, compared with plate-shaped structures such as sidewalk slabs, the surface net 30 can effectively reduce the overall weight of the walking support structure 3 while ensuring its support stability for pedestrians, thereby reducing the tension of the walking support structure 3 on the catwalk 2 and the bridge main tower 1 and reducing the installation requirements of the walking support structure 3.

[0046] Further, such as Figure 4 As shown, the walking support structure 3 also includes a plurality of load-bearing cables 31 . The plurality of load-bearing cables 31 extend along the extension direction of the catwalk 2 , and the plurality of load-bearing cables 31 are installed below the surface net 30 at intervals.

[0047] The load-bearing cables 31 are used to support the surface net 30, further improving the support stability of the surface net 30 for pedestrians.

[0048] There is no limit to the number and specification of the load-bearing cables 31, and they 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.

[0049] In order 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 150-350 kN.

[0050] like Figure 4 As shown, 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 surface net 30 , and at least one handrail cable 32 is installed on the other side of the surface net 30 .

[0051] When the handrail ropes 32 are installed on both sides of the surface net 30 , they can provide hand support for pedestrians walking on the surface net 30 , effectively improving the safety of the walking support structure 3 .

[0052] In addition, the handrail rope 32 can also enhance the structural strength of the surface net 30 and further improve the stability of the walking support structure 3.

[0053] There is no limit to the number and specification of the handrail ropes 32, and they can be selected according to actual needs. For example, six handrail ropes 32 can be used, and three handrail ropes 32 are respectively installed on both sides of the surface net 30; the diameter of the handrail rope 32 can be selected to be 20 mm.

[0054] like Figure 4 As shown, the walking support structure 3 may further include a plurality of joists 33 , which are spaced apart along the extension direction of the catwalk 2 , and each joist 33 is fixed below the surface net 30 .

[0055] The joist 33 can be fixed under the load-bearing cable 31. The joist 33 is used to support the surface net 30, further improving the structural stability of the surface net 30 and the support stability for pedestrians.

[0056] There is no limit to the number and spacing of the joists 33, and they can be selected according to actual needs. For example, the spacing between two adjacent joists 33 can be 100 to 200 meters, and the rise-span ratio between the joists 33 can be 1 / 40 to 1 / 20. In this embodiment, the rise-span ratio between the joists 33 is preferably 1 / 30.

[0057] 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, which are arranged in parallel above the two sides of the bridge deck 6), the existing catwalks 2 are usually also two parallel catwalks 2, and the two catwalks 2 are respectively arranged under the two main cables 5. At this time, in order to facilitate construction workers to walk between the two parallel catwalks 2, Figure 3 As shown, a transverse passage 22 is connected between the two catwalks 2 , and the transverse passage 22 extends along the width direction of the bridge deck 6 and is located above the bridge deck 6 .

[0058] In order to facilitate the installation of the walking support structure 3 and prevent the walking support structure 3 from affecting the stability of the catwalk 2, in this embodiment, the suspension structure 4 is preferably connected between the walking support structure 3 and the transverse channel 22 of the catwalk 2.

[0059] like Figure 3 and Figure 4 As shown, the suspension structure 4 includes a plurality of first slings 40 and a plurality of second slings 41; the plurality of first slings 40 are spaced apart along the extension direction of the catwalk 2, and each of the first slings 40 is connected between one side of the catwalk 2 away from the central axis of the bridge deck 6 and one side of the walking support structure 3; the plurality of second slings 41 are spaced apart along the extension direction of the catwalk 2, and each of the second slings 41 is connected between the central axis of the catwalk 2 and the other side of the walking support structure 3.

[0060] At this time, both sides of the walking support structure 3 are connected to the catwalk 2 through the first sling 40 and the second sling 41 respectively, which can effectively ensure the balance and stability of the walking support structure 3.

[0061] The first sling 40 is connected between one side of the catwalk 2 away from the central axis of the bridge deck 6 and one side of the walking support structure 3, and the second sling 41 is connected between 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 arranged 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 closer to the catwalk 2. Figure 5 and Figure 6The construction elevator 10 shown on one side of the main tower 1 of the bridge facilitates shortening the path for construction workers to reach the walking support structure 3 from the construction elevator 10, further improving the use effect of the horizontal channel used for the suspension bridge catwalk.

[0062] The number of the plurality of first slings 40 and the number of the plurality of second slings 41 may be the same, and the plurality of first slings 40 are evenly spaced, and the plurality of second slings 41 are evenly spaced.

[0063] Further, such as Figure 3 and Figure 4 As shown, a suspension rod 7 can also be connected to the central axis of the catwalk 2, and one end of the suspension rod 7 away from the catwalk 2 is abutted against the bridge deck 6 below the central axis of the catwalk 2, and a second sling 41 is arranged parallel to one side of the suspension rod 7. The suspension rod 7 can improve the stability of the catwalk 2.

[0064] In this embodiment, if Figure 3 and Figure 4 As shown, the bottom of the walking support structure 3 is located above the bridge deck 6 below the catwalk 2.

[0065] When the bottom of the walking support structure 3 is located above the bridge deck 6 below the catwalk 2, it is convenient for construction workers to walk between the walking support structure 3 and the bridge deck 6, effectively improving the ease of use of the horizontal channel for the suspension bridge catwalk.

[0066] like Figure 5 and Figure 6 As shown, the horizontal channel for the suspension bridge catwalk provided in this embodiment also includes a connecting platform 8, which is connected between a construction elevator 10 on one side of the bridge main tower 1 and the end of the walking support structure 3 close to the bridge main tower 1.

[0067] 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 the construction workers can easily reach the walking support structure 3 after getting off the construction elevator 10 .

[0068] The connecting platform 8 may adopt a plate-like structure, or a combined structure including a support plate and a support beam, wherein the support beam is fixedly connected to the main tower 1 of the bridge, and the support plate is installed on the support beam.

[0069] like Figure 6 and Figure 7 As shown, the horizontal channel for the catwalk of a suspension bridge provided in this embodiment may also include a conversion frame 9 with a walking channel inside. The conversion frame 9 is arranged above the connecting platform 8, and the conversion frame 9 is fixed to a side of the main tower 1 of the bridge close to the walking support structure 3, and the walking support structure 3 is connected to the conversion frame 9.

[0070] The conversion frame 9 can leave an inlet and outlet passage for construction workers on the connecting platform 8, further improving the safety of construction workers walking at height.

[0071] Further, such as Figure 7 As shown, the conversion frame 9 and the main tower 1 of the bridge can be connected to each other through a main tower connector 90. When the walking support structure 3 includes a plurality of handrail cables 32, each handrail cable 32 and the conversion frame 9 can be connected to each other through a handrail connector 91.

[0072] In summary, the horizontal passage for the catwalk of the suspension bridge provided in this embodiment can effectively shorten the path for construction workers to reach the middle of the middle span 21 of the catwalk 2 by suspending the walking support structure 3 under the catwalk 2. When it is necessary to install the horizontal passage for the catwalk of the suspension bridge under the catwalk 2, the first sling 40 and the second sling 41 can be connected to the transverse passage 22 between the two parallel catwalks 2, and the joist 33 can be connected between the bottom end of the first sling 40 and the bottom end of the second sling 41, and then the load-bearing cable 31 is installed above the joist 33 by the method of leading cable traction, and the handrail cable 32 is installed on both sides of the first sling 40 and the second sling 41 close to each other, and then the surface net 30 is laid above the load-bearing cable 31 and inside the handrail cable 32. Then, the construction elevator 10 and the connecting platform 8 can be installed on one side of the bridge main tower 1, and the connecting platform 8 and the walking support structure 3 are connected to each other, and then the conversion frame 9 is installed on the connecting platform 8.

[0073] It should also be noted that the catwalk has poor stability during use and is prone to shaking under the influence of wind, with a large swing amplitude. Figure 8 As shown, a first weight 42 can be connected to the bottom of the suspension structure 4; an elastic member 34 is connected between one end of the walking support structure 3 and the adjacent bridge main tower 1, and / or the other end of the walking support structure 3 bypasses the steering member 36 on the adjacent bridge main tower 1 and extends downward, and is connected to a second weight 35.

[0074] The steering member 36 may be a fixed pulley fixed on the bridge main tower 1. The first weight 42 and the second weight 35 may both be counterweights, and the elastic member may be a spring.

[0075] During use, the first weight 42, the elastic member 34 and the second weight 35 can increase the damping of the catwalk, thereby reducing the swing amplitude of the catwalk.

[0076] There may be multiple first weights 42, and the multiple first weights 42 are respectively connected to the lower part of the suspension structure 4 through connecting structures such as ropes. There is no limit to the number, size and distribution position of the first weights 42, which can be determined according to the dynamic characteristics of the catwalk.

[0077] When the walking support structure 3 includes a plurality of load-bearing cables 31 and a plurality of handrail cables 32, and each handrail cable 32 is connected to the conversion frame 9 via a handrail connector 91, an elastic member 34 may be connected between one end of each load-bearing cable 31 and the conversion frame 9, and an elastic member 34 may also be connected between one end of each handrail cable 32 and the corresponding handrail connector 91. Alternatively, a steering member 36 may be provided on 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 respectively bypass the corresponding steering member 36 and extend downward, and then are respectively connected to a second weight 35.

[0078] There is no restriction on the elastic parameters of the elastic member 34 and the weight of the second weight 35 , and they can be determined according to the stress conditions of the load-bearing cable 31 and the handrail cable 32 and the dynamic characteristics of the catwalk.

[0079] It can be seen that this embodiment can effectively increase the damping feeling during the use of the catwalk 2 by providing the first weight 42, the elastic member 34 and the second weight 35, thereby effectively improving the wind resistance stability of the catwalk 2 and reducing the swing amplitude of the catwalk 2.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A horizontal channel for a suspension bridge catwalk, characterized in that: It comprises a walking support structure (3) and a suspension structure (4); The walking support structure (3) is arranged below the catwalk (2), and the walking support structure (3) is connected between the tower bodies of the bridge 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, and the preset value is used to enable construction workers to climb from the walking support structure (3) below the middle of the middle span (21) of the catwalk (2) to the middle 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).

2. The horizontal channel for a suspension bridge catwalk according to claim 1, characterized in that: The walking support structure (3) comprises a surface net (30), the surface net (30) extends in a horizontal direction, and the longitudinal cross-section of the surface net (30) is in a groove shape.

3. The horizontal channel for a suspension bridge catwalk according to claim 2, characterized in that: The walking support structure (3) further comprises a plurality of load-bearing cables (31), wherein the plurality of load-bearing cables (31) all extend along the extension direction of the catwalk (2), and the plurality of load-bearing cables (31) are installed at intervals below the surface net (30).

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

5. The horizontal channel for a suspension bridge catwalk according to claim 2, characterized in that: The walking support structure (3) further comprises a plurality of support beams (33), wherein the plurality of support beams (33) are distributed at intervals along the extension direction of the catwalk (2), and each of the support beams (33) is fixed below the surface net (30).

6. The horizontal channel for a suspension bridge catwalk according to any one of claims 1 to 5, characterized in that: The suspension structure (4) comprises a plurality of first slings (40) and a plurality of second slings (41); A plurality of the first slings (40) are distributed at intervals along the extension direction of the catwalk (2), and each of the first slings (40) is connected between a side of the catwalk (2) away from the central axis of the bridge deck (6) and a side of the walking support structure (3); A plurality of the second slings (41) are distributed at intervals along the extension direction of the catwalk (2), and each of the second slings (41) is connected between the central axis of the catwalk (2) and the other side of the walking support structure (3).

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

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

9. The horizontal channel for a suspension bridge catwalk according to claim 8, characterized in that: It also includes a conversion frame (9) with a walking passage inside, the conversion frame (9) is arranged above the connecting platform (8), and the conversion frame (9) is fixed to a side of the bridge main tower (1) close to the walking support structure (3), and the walking support structure (3) is connected to the conversion frame (9).

10. The horizontal channel for a suspension bridge catwalk according to any one of claims 1 to 5, characterized in that: A first weight (42) is connected below the suspension structure (4); An elastic member (34) is connected between one end of the walking support structure (3) and the adjacent bridge main tower (1), and / or the other end of the walking support structure (3) extends downward after bypassing a steering member (36) on the adjacent bridge main tower (1) and is connected to a second weight (35).

Images