Catwalk crosswalk suitable for space cable suspension bridge

Abstract

The application relates to a catwalk transverse overbridge suitable for a spatial cable suspension bridge and belonging to the technical field of bridge construction, which comprises catwalk portal frames, which are respectively used for being fixed on catwalk main cables on the upstream and downstream of the suspension bridge; a transverse channel, two ends of which are respectively used for connecting the catwalk portal frames on the upstream and downstream of the suspension bridge, and the transverse channel changes the transverse spacing of the catwalk portal frames on the upstream and downstream of the suspension bridge by adjusting the length of the transverse channel. Therefore, the transverse span of the catwalk can be adjusted, the transverse spacing of the catwalk portal frames is adjusted according to the change of the relative distance of the main cable installation on the upstream and downstream of the suspension bridge in the construction process, subsequent installation and construction are facilitated, the construction flexibility is improved, the change of the main cable line shape can be better adapted, the demand of the catwalk arrangement for the spatial cable suspension bridge cable strand erection and spatial cable conversion is met, the variable-spacing main cable construction problem in the construction process of the spatial main cable suspension bridge is solved, the construction efficiency of the spatial cable suspension bridge main cable erection is greatly improved, and the safety and economy in the construction process are ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bridge construction, and in particular to a catwalk transverse skywalk suitable for a spatial cable suspension bridge. BACKGROUND

[0002] The catwalk is a main temporary structure for erecting the main cable of the bridge, and provides a construction operation platform and a pedestrian passageway for main cable strand traction adjustment, cable tightening, installation of a cable clamp and a sling, installation of a stiffening beam, main cable wire wrapping protection, and installation of a dehumidification system, etc. The catwalk is used almost throughout the process of installation of the superstructure of the suspension bridge. The catwalk transverse skywalk can satisfy catwalk connection between the upstream and downstream, facilitate transfer of construction personnel, equipment and materials, and improve the overall stability of the catwalk and the wind resistance thereof.

[0003] In the related art, in order to reduce the dead load, the transverse skywalk generally adopts a steel pipe or a square steel truss structure, and the surface layer and the railing protection of the transverse skywalk can be arranged the same as the catwalk surface layer. The two main cables of the traditional suspension bridge are generally arranged in parallel, and therefore the catwalk for the traditional suspension bridge is a fixed separation structure, and the transverse skywalk between the catwalks is generally designed and processed in advance according to the main cable spacing and is fixed in size and cannot be adjusted. However, for the suspension bridge with variable main cable spacing, the transverse skywalk used on the traditional fixed separation catwalk cannot be applied to this type of suspension bridge.

[0004] Therefore, it is necessary to provide a catwalk transverse skywalk suitable for a spatial cable suspension bridge to solve the above problems. SUMMARY

[0005] The embodiments of the present application provide a catwalk transverse skywalk suitable for a spatial cable suspension bridge to solve the problem that the transverse skywalk used on the fixed separation catwalk in the related art cannot be applied to the construction of the suspension bridge with variable main cable spacing.

[0006] The embodiments of the present application provide a catwalk transverse skywalk suitable for a spatial cable suspension bridge, which comprises:

[0007] Catwalk portal frames, respectively arranged on the main cables of the catwalks on the upstream and downstream of the suspension bridge;

[0008] A transverse channel, respectively connected to the catwalk portal frames on the upstream and downstream of the suspension bridge, and capable of changing the transverse spacing of the catwalk portal frames on the upstream and downstream of the suspension bridge by adjusting the length of the transverse channel.

[0009] In some embodiments, the transverse channel comprises a telescopic cross strut connected between the catwalk portal frames on the upstream and downstream of the suspension bridge, and an operation platform connected to the catwalk portal frames on the upstream and downstream of the suspension bridge is arranged on the cross strut.

[0010] In some embodiments, the cross brace comprises a middle fixed section and telescopic adjustment sections respectively connected at both ends of the middle fixed section, and a horizontal driving device for driving the telescopic adjustment sections to extend and shorten.

[0011] In some embodiments, the horizontal driving device comprises a pulling mechanism and a steel strand arranged between the catwalk gantry and the middle fixed section, the pulling mechanism drives the catwalk gantry to approach the middle fixed section by pulling the steel strand.

[0012] In some embodiments, the middle fixed section is a connecting frame, the telescopic adjustment sections comprise a first pipe body and a second pipe body connected with each other in sliding mode, a tripod is fixed between the first pipe body and the catwalk gantry, and an end of the second pipe body away from the first pipe body is fixed on the connecting frame.

[0013] In some embodiments, the pulling mechanism is a horizontal continuous jack fixed on the tripod, and the steel strand is arranged in the first pipe body and the second pipe body and fixedly connected with the middle fixed section.

[0014] In some embodiments, the first pipe body and the second pipe body are both circular pipes, and the first pipe body and the second pipe body are respectively provided with a sliding block and a sliding groove matched with each other to prevent the first pipe body and the second pipe body from rotating relative to each other.

[0015] In some embodiments, the inner diameter of the first pipe body is greater than the outer diameter of the second pipe body, the sliding block is a second strip plate fixed on the outer surface of the second pipe body and distributed along the length direction of the second pipe body, and the inner surface of the first pipe body is fixed with a first strip plate located on both sides of the second strip plate, the first strip plates located on both sides of the second strip plate and the first pipe body jointly form the sliding groove.

[0016] In some embodiments, the first pipe body and the second pipe body are fixedly connected through a fastener, the first pipe body and / or the second pipe body is provided with a hand hole for assisting in mounting the fastener, and an arc-shaped plate for closing the hand hole.

[0017] In some embodiments, the operation platform comprises a pedestrian passage arranged on the cross brace and a guardrail arranged on both sides of the pedestrian passage.

[0018] The pedestrian passage comprises supports fixed on the cross brace and distributed along the length direction of the cross brace, and a steel plate net laid on the top surface of the supports, and the guardrail comprises railings fixed with the supports and steel wires connected with the railings in sequence, and the end of the steel wire is fixed on the catwalk gantry.

[0019] The technical scheme provided by the present application has the following beneficial effects:

[0020] The catwalk transverse bridge suitable for the spatial cable suspension bridge is provided by the embodiment of the application, the catwalk portal frame is fixed on the catwalk main cable of the upstream and downstream of the suspension bridge respectively, the transverse channel is connected with the catwalk portal frame of the upstream and downstream of the suspension bridge respectively, and the transverse channel changes the transverse spacing of the catwalk portal frame of the upstream and downstream of the suspension bridge by adjusting the length of the transverse channel.

[0021] Therefore, the transverse span adjustment of the catwalk of the upstream and downstream of the suspension bridge can be realized, the transverse spacing of the catwalk portal frame is adjusted according to the change of the relative distance of the main cable installation of the upstream and downstream of the suspension bridge in the construction process, the subsequent installation and construction are facilitated, the construction flexibility is improved, the change of the main cable line shape can be better adapted, the demand of the catwalk arrangement for the spatial cable suspension bridge cable strand erection and spatial cable conversion is met, the variable-spacing main cable construction problem in the construction process of the spatial main cable suspension bridge is solved, the construction efficiency of the spatial cable suspension bridge main cable erection is greatly improved, and the safety and economy in the construction process are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0023] Figure 1 The structural schematic diagram of the embodiment of the application is shown in the figure;

[0024] Figure 2 The implementation schematic diagram of the embodiment of the application is shown in the figure;

[0025] Figure 3 The structural schematic diagram of the telescopic adjustment section of the embodiment of the application is shown in the figure;

[0026] Figure 4 The connection schematic diagram of the support and the first pipe body of the embodiment of the application is shown in the figure;

[0027] Figure 5 The connection schematic diagram of the support and the second pipe body of the embodiment of the application is shown in the figure;

[0028] Figure 6 The cross-sectional schematic diagram of the second strip-shaped plate of the embodiment of the application is shown in the figure;

[0029] Figure 7 The structural schematic diagram of the hand hole of the embodiment of the application is shown in the figure;

[0030] Figure 8 The cross-sectional schematic diagram of the intermediate fixed section of the embodiment of the application is shown in the figure.

[0031] In the drawings, the component list represented by each sign is as follows: In the drawings, the component list represented by each sign is as follows:

[0032] 10, catwalk portal; 20, catwalk main cable; 21, main cable;

[0033] 30, cross passage; 40, cross brace; 50, intermediate fixed section;

[0034] 60, telescopic adjustment section; 61, first tube; 62, second tube; 63, first strip plate; 64, second strip plate; 65, tripod; 66, hand hole;

[0035] 70, horizontal drive device; 71, pulling mechanism; 72, steel strand;

[0036] 80, operation platform; 81, support; 82, railing; 83, steel wire rope. DETAILED DESCRIPTION

[0037] To make the objectives, technical solutions, and superiorities of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described below in connection with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0038] The catwalk cross passage bridge for spatial cable suspension bridges provided in the embodiments of the present application can solve the problem that the cross passage bridge used on the fixed separated catwalk cannot be applied to the suspension bridge construction with variable interval arrangement of main cables in the related art.

[0039] Referring to Figures 1 to 8 The catwalk cross passage bridge for spatial cable suspension bridges provided in the embodiments of the present application can solve the problem that the cross passage bridge used on the fixed separated catwalk cannot be applied to the suspension bridge construction with variable interval arrangement of main cables in the related art.

[0040] The catwalk portal 10 is respectively fixed on the catwalk main cable 20 upstream and downstream of the suspension bridge;

[0041] The cross passage 30 is respectively connected to the catwalk portal 10 upstream and downstream of the suspension bridge, and the length of the cross passage 30 is adjusted to change the lateral interval of the catwalk portal 10 upstream and downstream of the suspension bridge.

[0042] The catwalk portal 10 of the catwalk cross passage bridge for spatial cable suspension bridges in the embodiments of the present application is respectively fixed on the catwalk main cable 20 upstream and downstream of the suspension bridge, the cross passage 30 is respectively connected to the catwalk portal 10 upstream and downstream of the suspension bridge, and the length of the cross passage 30 is adjusted to change the lateral interval of the catwalk portal 10 upstream and downstream of the suspension bridge. Since the catwalk portal 10 is fixed on the catwalk, the catwalk moves laterally with the catwalk portal 10, so that the lateral span adjustment of the catwalk upstream and downstream of the suspension bridge can be realized.

[0043] Specifically, a plurality of catwalk portal frames 10 are fixedly installed on the two catwalks of the upstream and downstream of the suspension bridge and are distributed along the longitudinal direction of the bridge, a cross passage 30 is installed between the two catwalk portal frames 10 in the transverse direction of the bridge, the cross passage 30 at each position adjusts the transverse spacing of the catwalk portal frame 10 at the position according to the change in the relative distance of the installation of the main cable 21 of the suspension bridge in the construction process, and ensures that the main cable 21 arranged at variable intervals can pass through the catwalk portal frame 10, thereby improving the construction flexibility, better adapting to the change in the linear shape of the main cable 21, facilitating the subsequent installation and construction of the main cable 21, meeting the requirements of the catwalk arrangement for the space cable suspension bridge cable strand erection and space cable conversion, solving the problem of variable-interval main cable 21 construction in the construction process of the space main cable 21 suspension bridge, greatly improving the construction efficiency of the space cable suspension bridge main cable 21 erection, and ensuring the safety and economy in the construction process.

[0044] In some optional embodiments, referring to Figures 1 to 2 The catwalk transverse skywalk suitable for the space cable suspension bridge provided in the embodiments of the present application includes a telescopic cross brace 40, the cross brace 40 is connected between the catwalk portal frames 10 of the upstream and downstream of the suspension bridge, and an operating platform 80 connecting the catwalk portal frames 10 of the upstream and downstream of the suspension bridge is arranged on the cross brace 40.

[0045] The cross passage 30 of the embodiments of the present application includes the cross brace 40 and the operating platform 80, the cross brace 40 is used to move the catwalk portal frames 10 of the upstream and downstream of the suspension bridge, so that the catwalk portal frames 10 adapt to the linear shape of the main cable 21 and facilitate the subsequent installation and construction of the main cable 21; the operating platform 80 is fixedly installed on the cross brace 40 and is supported by the cross brace 40, the operating platform 80 connects the catwalks of the upstream and downstream of the suspension bridge, facilitates the transfer of the construction personnel, equipment and materials, and at the same time, the operating platform 80 connects the catwalk portal frames 10 and the cross brace 40, thereby improving the overall stability of the catwalk itself.

[0046] In some optional embodiments, referring to Figures 1 to 2 The catwalk transverse skywalk suitable for the space cable suspension bridge provided in the embodiments of the present application includes a cross brace 40, the cross brace 40 includes an intermediate fixed section 50 and telescopic adjustment sections 60 connected to both ends of the intermediate fixed section 50, and a horizontal driving device 70 driving the telescopic adjustment sections 60 to elongate and shorten.

[0047] The cross brace 40 of the embodiments of the present application includes the intermediate fixed section 50 and the telescopic adjustment sections 60, and the horizontal driving device 70 driving the telescopic adjustment sections 60 to elongate and shorten, specifically, the two ends of the intermediate fixed section 50 are connected to the catwalk portal frames 10 through the telescopic adjustment sections 60, respectively, and the horizontal driving devices 70 on both sides drive the telescopic adjustment sections 60 on both sides to change the length, so that the distance from the catwalk portal frames 10 to the intermediate fixed section 50 changes.

[0048] Exemplarily, the telescopic adjusting section 60 can be a hydraulic cylinder, and the horizontal driving device 70 can be a hydraulic device matched with the hydraulic cylinder; or the telescopic adjusting section 60 can be an electric telescopic cylinder, and the horizontal driving device 70 can be an electric driving device matched with the electric telescopic cylinder. The intermediate fixed section 50 can ensure the stable overall gravity center of the cross strut 40, facilitate hoisting and installation, satisfy the adjustment of the upstream and downstream catwalk transverse span, reduce the overall weight of the cross strut 40, and avoid the overall use of the telescopic adjusting section 60 to replace the intermediate fixed section 50, so as to cause the overall weight to be overweight, increase the installation difficulty, and reduce the use safety.

[0049] In some optional embodiments, referring to Figure 3 The catwalk transverse skywalk suitable for the spatial cable suspension bridge provided in the embodiments of the present application includes the horizontal driving device 70, the horizontal driving device 70 includes the pulling mechanism 71 and the steel strand 72 arranged between the catwalk portal frame 10 and the intermediate fixed section 50, and the pulling mechanism 71 drives the catwalk portal frame 10 to approach the intermediate fixed section 50 by pulling the steel strand 72.

[0050] The horizontal driving device 70 of the embodiments of the present application includes the pulling mechanism 71 and the steel strand 72. Exemplarily, the pulling mechanism 71 can be a tensioning jack or other equipment capable of winding and unwinding the steel strand 72, and the pulling mechanism 71 can be fixed on the catwalk portal frame 10 or the intermediate fixed section 50. The pulling mechanism 71 drives the catwalk portal frame 10 to approach the intermediate fixed section 50 by tensioning the steel strand 72.

[0051] In some optional embodiments, referring to Figures 1 to 8 The catwalk transverse skywalk suitable for the spatial cable suspension bridge provided in the embodiments of the present application includes the intermediate fixed section 50, the telescopic adjusting section 60, the catwalk portal frame 10, and the horizontal driving device 70. The intermediate fixed section 50 is a connecting frame, the telescopic adjusting section 60 includes the first pipe body 61 and the second pipe body 62 connected with each other in a sliding mode, the first pipe body 61 and the catwalk portal frame 10 are fixed with the triangular frame 65, and one end of the second pipe body 62 away from the first pipe body 61 is fixed on the connecting frame.

[0052] The intermediate fixed section 50 of the embodiments of the present application is a connecting frame, the telescopic adjusting section 60 includes the first pipe body 61 and the second pipe body 62 connected with each other in a sliding mode, the first pipe body 61 and the catwalk portal frame 10 are fixed with the triangular frame 65, and one end of the second pipe body 62 away from the first pipe body 61 is fixed on the connecting frame.

[0053] Exemplarily, the connecting frame adopts a truss structure, which can reduce the overall weight of the horizontal passageway 30, facilitate hoisting, and the top surface of the connecting frame is paved with a steel plate mesh to facilitate the passage of construction personnel and goods; in the example of the application, the truss is prismatic, the connecting frame is internally provided with a reinforcing web that matches the cross-sectional shape of the connecting frame, flanges are welded to both ends of the connecting frame, a flange is welded to one end of the second pipe body 62 away from the first pipe body 61, and the end flange of the connecting frame is connected to the end flange of the second pipe body 62 through bolts; the triangular frame 65 is welded to the opposite sides of the catwalk portal frame 10 at the upstream and downstream, a flange is welded to one end of the triangular frame 65 away from the catwalk portal frame 10, a flange is welded to one end of the first pipe body 61 away from the second pipe body 62, and the end flange of the triangular frame 65 is connected to the end flange of the first pipe body 61 through bolts, thereby facilitating overall hoisting, installation and disassembly; preferably, vertical and horizontal stiffening plates are arranged on the flanges to improve the bending strength and overall stability of the flanges.

[0054] In some optional embodiments, referring to Figure 3 The catwalk transverse footbridge for a spatial cable suspension bridge provided by the embodiments of the application is provided with a pulling mechanism 71, which is a horizontal continuous jack fixed on the triangular frame 65, and a steel strand 72 is arranged in the first pipe body 61 and the second pipe body 62 and is fixedly connected to the intermediate fixed section 50.

[0055] The pulling mechanism 71 of the embodiments of the application is a horizontal continuous jack, and a base for installing the continuous jack is fixed in the triangular frame 65. The steel strand 72 connected to the horizontal continuous jack is arranged in the first pipe body 61 and the second pipe body 62, which reduces the occupied space of the equipment, improves the overall space utilization, optimizes the spatial layout, and facilitates the installation of the operation platform 80.

[0056] The horizontal passageway 30 of the embodiments of the application realizes horizontal expansion and contraction through the horizontal continuous jack and the steel strand 72, without the aid of other machines and equipment, which is simple to operate and high in safety.

[0057] Specifically, during the construction of the superstructure of the suspension bridge, the catwalk portal frame 10 is arranged directly below the main cable 21. During the erection of the main cable 21, the two main cables 21 at the upstream and downstream of the suspension bridge are arranged in parallel. During the construction of the steel truss girder, the distance between the main cables 21 gradually decreases, and the transverse line shape of the main cables 21 gradually approaches the line shape of the bridge. In order to adapt to the change in the transverse line shape of the main cable 21, the steel strand 72 is pulled by the horizontal continuous jack, so that the first pipe body 61 and the second pipe body 62 slide relative to each other, to keep the catwalk portal frame 10 located at the outer periphery of the main cable 21, thereby facilitating the construction of the main cable 21.

[0058] In some optional embodiments, referring to Figure 3 and 6As shown, the catwalk transverse skywalk suitable for the spatial cable suspension bridge provided by the embodiment of the present application has a first pipe body 61 and a second pipe body 62, both of which are circular pipes, and the first pipe body 61 and the second pipe body 62 are respectively provided with a sliding block and a sliding groove, and the sliding block and the sliding groove are matched with each other to prevent the first pipe body 61 and the second pipe body 62 from rotating with respect to each other.

[0059] The first pipe body 61 and the second pipe body 62 of the embodiment of the present application are both circular pipes, and the first pipe body 61 and the second pipe body 62 are respectively provided with a sliding block and a sliding groove, and the sliding block and the sliding groove are matched with each other to prevent the first pipe body 61 and the second pipe body 62 from rotating with respect to each other. Specifically, when the first pipe body 61 and the second pipe body 62 slide with respect to each other along the axial direction, the sliding block moves with respect to the sliding groove, thereby avoiding the first pipe body 61 and the second pipe body 62 from rotating with respect to each other, so as to ensure that the upper parts of the first pipe body 61 and the second pipe body 62 can stably install the operation platform 80.

[0060] In some optional embodiments, referring to Figures 1 to 8 As shown, the catwalk transverse skywalk suitable for the spatial cable suspension bridge provided by the embodiment of the present application has a first pipe body 61 and a second pipe body 62, both of which are circular pipes, and the first pipe body 61 and the second pipe body 62 are respectively provided with a sliding block and a sliding groove, and the sliding block and the sliding groove are matched with each other to prevent the first pipe body 61 and the second pipe body 62 from rotating with respect to each other.

[0061] The first pipe body 61 and the second pipe body 62 of the embodiment of the present application can both adopt circular steel pipes, and the first strip-shaped plate 63 and the second strip-shaped plate 64 can both adopt stainless steel plates with smooth surfaces. Specifically, in order to prevent the first pipe body 61 and the second pipe body 62 from rotating with respect to each other, a stainless steel plate with a thickness of 4 mm is welded on the inner wall of the first pipe body 61 and the outer wall of the second pipe body 62 through intermittent welding, and the stainless steel plate is arranged along the length. In this embodiment, the stainless steel plate not only can temporarily lock the first pipe body 61 and the second pipe body 62, but also can reduce the friction coefficient between the first pipe body 61 and the second pipe body 62, thereby improving the stability during the stretching and contraction of the transverse skywalk.

[0062] Preferably, in order to facilitate the assembly of the second pipe body 62 and ensure the stability during the contraction of the transverse skywalk, the inner wall of the end part of the first pipe body 61 and the outer wall of the end part of the second pipe body 62 are chamfered.

[0063] In some optional embodiments, referring to Figure 7As shown, the catwalk transverse bridge suitable for the spatial cable suspension bridge provided by the embodiment of the present application is fixedly connected between the first pipe body 61 and the second pipe body 62 through the fastener, the first pipe body 61 and / or the second pipe body 62 is provided with a hand hole 66 for assisting in mounting the fastener, and an arc-shaped plate is arranged to close the hand hole 66.

[0064] The fastener of the embodiment of the present application can adopt a bolt, and for the convenience of mounting and removing the connecting bolt between the first pipe body 61 and the second pipe body 62, the hand hole 66 is arranged within 1m of the bolt connection position of the two pipe bodies. When the transverse bridge is contracted in place, the arc-shaped plate is arranged at the hand hole 66 and is welded with the first pipe body 61, so as to reduce the weakening of the cross-section strength of the first pipe body 61.

[0065] It should be noted that when the relative positions of the first pipe body 61 and the second pipe body 62 are determined, that is, the distance between the catwalk portal frames 10 upstream and downstream is adjusted in place, the first pipe body 61 and the second pipe body 62 are locked through the fastener, so as to further ensure the stability of the transverse bridge.

[0066] In some optional embodiments, referring to Figures 1 to 8 As shown, the catwalk transverse bridge suitable for the spatial cable suspension bridge provided by the embodiment of the present application is fixedly connected between the first pipe body 61 and the second pipe body 62 through the fastener, the first pipe body 61 and / or the second pipe body 62 is provided with a hand hole 66 for assisting in mounting the fastener, and an arc-shaped plate is arranged to close the hand hole 66.

[0067] The pedestrian passage includes the support 81 fixed to the cross brace 40 and spacedly distributed along the length direction of the cross brace 40, and the steel plate net laid on the top surface of the support 81, and the guardrail includes the rail 82 fixed with the support 81 and the steel wire rope 83 connected with each rail 82 in sequence, and the end of the steel wire rope 83 is fixed on the catwalk portal frame 10.

[0068] The pedestrian passage of the embodiment of the present application is wider than the first pipe body 61 and the second pipe body 62, specifically, the support 81 is spacedly distributed along the length direction of the cross brace 40, and it is appropriate that the interval is one meter, the bottom of the support 81 forms a clamping groove for connecting the first pipe body 61 or the second pipe body 62, the support 81 mounted on the first pipe body 61 is welded, the support 81 mounted on the second pipe body 62 is bolted, the steel wire rope 83 is fixed on the rail 82 through binding or threading, and the end of the steel wire rope 83 is wound on the column of the catwalk portal frame 10 and is firmly bound.

[0069] In the description of the present application, it should be noted that the terms "upper", "lower", and the like are used for indicating the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0070] It should be noted that in the present application, relational terms such as "first" and "second", and the like are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus including a series of elements includes not only those elements, but also other elements not explicitly listed, or other elements inherent in such a process, method, article or apparatus. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of other identical elements in the process, method, article or apparatus including the element.

[0071] The above is only a specific embodiment of the present application, which enables those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. A catwalk crosswalk suitable for use in a spatial cable suspension bridge, characterized in that, The catwalk portal (10) is respectively arranged on the catwalk main cable (20) of the upstream and downstream of the suspension bridge. The horizontal passage (30) is arranged between the catwalk portals (10) of the upstream and downstream of the suspension bridge, and the length of the horizontal passage (30) is adjusted to change the horizontal distance between the catwalk portals (10) of the upstream and downstream of the suspension bridge. The horizontal passage (30) comprises a telescopic cross brace (40) connected between the catwalk portals (10) of the upstream and downstream of the suspension bridge, and an operation platform (80) arranged on the cross brace (40) and connected with the catwalk portals (10) of the upstream and downstream of the suspension bridge. The cross brace (40) comprises a middle fixed section (50) and telescopic adjustment sections (60) connected at both ends of the middle fixed section (50), and a horizontal driving device (70) for driving the telescopic adjustment sections (60) to extend and shorten. The horizontal driving device (70) comprises a pulling mechanism (71) and a steel strand (72) arranged between the catwalk portal (10) and the middle fixed section (50), and the pulling mechanism (71) drives the catwalk portal (10) to move close to the middle fixed section (50) by pulling the steel strand (72). The middle fixed section (50) is a connecting frame, the telescopic adjustment sections (60) comprise a first pipe body (61) and a second pipe body (62) connected with each other in a sliding manner, a tripod (65) is fixed between the first pipe body (61) and the catwalk portal (10), and one end of the second pipe body (62) away from the first pipe body (61) is fixed on the connecting frame. The pulling mechanism (71) is a horizontal continuous jack fixed on the tripod (65), and the steel strand (72) is arranged in the first pipe body (61) and the second pipe body (62) and fixedly connected with the middle fixed section (50).

2. The catwalk horizontal bridge suitable for the spatial cable suspension bridge according to claim 1, wherein: The first pipe body (61) and the second pipe body (62) are both circular pipes, and the first pipe body (61) and the second pipe body (62) are respectively provided with a sliding block and a sliding groove matched with each other to prevent the first pipe body (61) and the second pipe body (62) from rotating relative to each other.

3. The catwalk horizontal bridge suitable for the spatial cable suspension bridge according to claim 2, wherein: The inner diameter of the first pipe body (61) is greater than the outer diameter of the second pipe body (62), the sliding block is a second strip plate (64) fixed on the outer surface of the second pipe body (62) and distributed along the length direction of the second pipe body (62), the first pipe body (61) is fixed with first strip plates (63) located at both sides of the second strip plate (64), and the first strip plates (63) located at both sides of the second strip plate (64) and the first pipe body (61) jointly form the sliding groove.

4. The catwalk horizontal bridge suitable for the spatial cable suspension bridge according to claim 1, wherein: ​ The first pipe body (61) and the second pipe body (62) are fixedly connected through fasteners, the first pipe body (61) and / or the second pipe body (62) is provided with a hand hole (66) for assisting in mounting the fasteners, and an arc-shaped plate is arranged to close the hand hole (66).

5. The catwalk crosswalk suitable for spatial cable suspension bridges according to claim 1, characterized in that: The operation platform (80) comprises a pedestrian passage arranged on the cross brace (40) and a guardrail arranged on both sides of the pedestrian passage; The pedestrian passage comprises supports (81) fixed to the cross brace (40) and spaced along the length direction of the cross brace (40), and a steel plate net arranged on the top surface of the supports (81); the guardrail comprises guardrails (82) fixed to the supports (81) and steel wire ropes (83) connected to the guardrails (82) in sequence, and the end portions of the steel wire ropes (83) are fixed to the catwalk portal (10).

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