A bridge maintenance platform

By setting up longitudinal and transverse maintenance platforms and drainage channels on the bridge, the difficulties in maintenance and drainage caused by the complex space under the bridge were solved, realizing comprehensive, efficient, and low-cost maintenance and drainage of the bridge, and improving safety and maintenance efficiency.

CN224678515UActive Publication Date: 2026-08-25NINGBO ELECTROMECHANICAL IND RES & DESIGN INST CO LTD
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Patent Information

Application Number
CN202521698800.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-11
Publication Date
2026-08-25
Estimated Expiration
2035-08-11

AI Technical Summary

Technical Problem

In certain engineering projects, the space under bridges is complex, making it impossible for people to directly access the area for inspection and maintenance, and there is no availability for inspection vehicles. Furthermore, drainage from the bridge cannot be directly channeled under the bridge, leading to difficulties in drainage and maintenance, high maintenance costs, and potential safety hazards.

Method used

Design a bridge maintenance platform, including longitudinal and transverse maintenance platforms and drainage channels. By setting transverse maintenance platforms and longitudinal drainage channels on both sides of the cap beam and connecting them to the outside, the maintenance and drainage functions are effectively covered in all directions of the bridge. The building components on both sides of the box girder are used as platform supports to reduce the need for modifications to the main structure of the bridge. Anti-throw nets and height-adjustable fixing frames are set to improve safety and flexibility.

Benefits of technology

It enables regular, comprehensive, efficient, and low-cost manual inspections, improves maintenance convenience and drainage efficiency, reduces construction difficulty and safety hazards, and extends the service life of the bridge.

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Abstract

The application discloses a kind of bridge's maintenance platform, including box girder and bent cap, bent cap is located between two parallel box girder, the two sides of box girder are equipped with longitudinal maintenance platform and longitudinal drainage channel respectively, longitudinal maintenance platform is used to maintain longitudinal drainage channel, bridge support and bridge side surface external structure;Bent cap is equipped with transverse maintenance platform and transverse drainage channel respectively at two sides, transverse maintenance platform is used to maintain transverse drainage channel, bridge support and bridge side surface external structure;Longitudinal drainage channel is communicated with transverse drainage channel, longitudinal maintenance platform is communicated with transverse maintenance platform;Longitudinal maintenance platform is equipped with with the entrance and exit being connected with outside, longitudinal drainage channel is equipped with with the drainage outlet.This application can conveniently personnel from outside enter bridge under space complex bridge area and carry out maintenance work, ensure that bridge maintenance can be effectively covered in each direction, improve maintenance convenience, realize periodic, comprehensive, efficient, low-cost inspection.
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Description

Technical Field

[0001] This application relates to the field of bridge construction technology, specifically a bridge maintenance platform. Background Technology

[0002] Bridge inspection is a crucial measure to ensure the structural safety, operational safety, and extended service life of bridges, and typically includes regular inspections, maintenance, and repairs. Bridge inspection platforms provide a safe and convenient access route for bridge inspection and maintenance personnel, enabling them to closely and comprehensively inspect critical bridge components and perform maintenance and repairs.

[0003] Bridge drainage channels quickly and effectively remove rainwater from the bridge deck, preventing water accumulation from harming the bridge structure and traffic safety. Bridge drainage channels are also a key area for maintenance. Bridge maintenance platforms and drainage channels are indispensable facilities in the bridge structure, playing a crucial role in the bridge's safety, durability, operation, and maintenance management.

[0004] Common maintenance of small and medium-sized bridges involves personnel entering the space under the bridge for inspection. The inspection platform is usually a fixed platform or a mobile inspection platform (such as a bridge inspection vehicle, a vehicle-mounted or suspended basket, or an aerial work platform). For large bridges, inspection vehicles are used for inspection, with inspection vehicle tracks laid along the longitudinal direction of the bridge under the beams. Common municipal bridge drainage involves water collecting on the bridge deck and then being discharged through drainage pipes, which then guide the water along the piers to the ground drainage system under the bridge.

[0005] However, in certain engineering projects, such as when a municipal bridge crosses a rail depot, due to the need to meet the requirements of rail operation and the complex environment under the bridge, people cannot directly reach under the bridge for maintenance, and there is no condition for inspection vehicles to carry out maintenance. Drainage from the bridge cannot be directly introduced under the bridge, which makes drainage and maintenance difficult, resulting in high maintenance costs and safety hazards.

[0006] Therefore, the structure of drainage channels and maintenance platforms in existing bridge technologies has room for further improvement. Utility Model Content

[0007] In view of this, and addressing the technical problems in the existing technology where, in order to meet the requirements of track operation and the complex space environment under the bridge, personnel cannot directly reach under the bridge for inspection, and there is no condition for inspection vehicles to be used for inspection, and drainage from the bridge cannot be directly introduced under the bridge, resulting in difficulties in drainage and maintenance, this application provides a bridge maintenance platform. Through the structure of the maintenance platform and drainage channel, it can ensure that the inspection and drainage functions are effectively covered in all directions of the bridge, realizing regular, comprehensive, efficient, and low-cost manual inspection, and improving maintenance convenience and drainage efficiency.

[0008] To achieve the above objectives, this application provides the following technical solution: a bridge maintenance platform, comprising: The box girder has a longitudinal maintenance platform and a longitudinal drainage channel on both sides. The longitudinal maintenance platform is used to inspect the longitudinal drainage channel, bridge bearings and external structure of the bridge side. The cap beam is located between two parallel box girders. A transverse maintenance platform and a transverse drainage channel are respectively provided on both sides of the cap beam. The transverse maintenance platform is used to inspect the transverse drainage channel, bridge bearings and external structures on the side of the bridge. The longitudinal drainage channel is connected to the transverse drainage channel, and the longitudinal maintenance platform is connected to the transverse maintenance platform. The longitudinal maintenance platform is provided with an entrance and exit connected to the outside, and the longitudinal drainage channel is provided with a drainage outlet.

[0009] Compared with existing technologies, by setting transverse inspection platforms and transverse drainage channels on both sides of the cap beam, and longitudinal inspection platforms and longitudinal drainage channels on both sides of the box girder, and connecting them to the external entrances and exits, it is convenient for personnel to enter from the outside to conduct inspections and maintenance work. This ensures that the inspection and drainage functions are effectively covered in all directions of the bridge, and further improves the convenience of maintenance and drainage efficiency. It solves the problem of inspection and drainage in the complex space under the bridge, and also serves as a means of inspecting the bridge bearings and the external structure on the sides of the bridge. This not only improves the efficiency and safety of inspection, but also effectively maintains the overall performance of the bridge and extends its service life, realizing regular, comprehensive, efficient and low-cost manual inspection.

[0010] Preferably, the longitudinal maintenance platform is located below the cantilever arm of the box girder.

[0011] Preferably, the longitudinal maintenance platform is located on the building components that connect to both sides of the box girder.

[0012] In this embodiment, this design is used when the bridge structure is a hollow slab beam and a longitudinal maintenance platform cannot be installed under the bridge. It can make full use of the lateral space and break through the limitations of traditional layout.

[0013] Preferably, the lowest point of the longitudinal maintenance platform is lower than the lowest point of the cap beam.

[0014] In this embodiment, the lowest point of the longitudinal maintenance platform is lower than the lowest point of the cap beam, which can effectively utilize the building components on both sides of the box girder as platform support, making construction more flexible and convenient, reducing modifications to the main structure of the bridge, and lowering construction difficulty and cost.

[0015] Preferably, the longitudinal maintenance platform includes a rectangular frame, an anti-throw net, and an inspection ladder. The anti-throw net is connected to the inner wall of the rectangular frame, and the inspection ladder is used to allow personnel to enter the transverse maintenance platform. The rectangular frame is at least partially fixedly connected to the building components on both sides of the box girder, and at least partially fixedly connected to the cap beam.

[0016] In this embodiment, by setting up an anti-throw net, tools or items can be effectively prevented from falling accidentally during maintenance, protecting the safety of people and vehicles passing under the bridge and reducing safety hazards.

[0017] Preferably, the longitudinal maintenance platform is provided with support members to support the longitudinal drainage channel. The support members are arranged in two rows along the length of the longitudinal drainage channel. The support member is provided with a height adjustment bracket on its side. The two height adjustment brackets are respectively connected to the two support members. The height adjustment brackets are used to adjust the height of the longitudinal drainage channel.

[0018] In this embodiment, an adjustable fixing frame is set up to adjust the height of the longitudinal drainage channel. The adjustable fixing frame can flexibly adjust the height of the longitudinal drainage channel to adapt to different installation conditions and design requirements on site, improve the flexibility and adaptability of construction, and facilitate cleaning, maintenance and replacement by maintenance personnel, thereby improving maintenance efficiency and extending the service life of the drainage system.

[0019] Preferably, the longitudinal drainage channel is provided with a rubber component, a fastener, and an arc-shaped steel plate. The fastener is sleeved on the upper part of the longitudinal drainage channel, and the arc-shaped steel plate is sleeved on the lower part of the longitudinal drainage channel and located between two support members. The end of the arc-shaped steel plate is connected to the end of the fastener. The rubber component is fitted onto the longitudinal drainage channel, and the fasteners and the arc-shaped steel plate are located on the outside of the rubber component.

[0020] In this embodiment, by setting fasteners, arc-shaped steel plates and rubber parts, damage to the longitudinal drainage channel can be avoided, while the stability and sealing of the longitudinal drainage channel are enhanced, effectively preventing water leakage and ensuring the smooth operation of the drainage system.

[0021] Preferably, both ends of the fastener are bent, the height adjustment bracket is provided with a connecting plate, and the bent part of the fastener is connected to the connecting plate and the height adjustment bracket by bolts.

[0022] In this embodiment, the fasteners can be easily disassembled and reinstalled through bolt connection, and the height of the longitudinal drainage channel can be flexibly adjusted in conjunction with the height adjustment function of the height fixing bracket.

[0023] Preferably, the transverse maintenance platform includes a platform frame, a checkered plate, and a protective net. The platform frame is fixedly connected to the cap beam, and the platform frame has a U-shaped structure. The patterned plate is at least partially connected to the inner wall of the bottom of the platform frame and at least partially connected to the inner wall of the platform frame away from the cap beam. The protective net is connected to the inner wall of the platform frame away from the cap beam, and the protective net is set above the patterned plate.

[0024] In this embodiment, the patterned plate is fixedly connected to the inner wall of the platform frame by welding, which facilitates construction and reduces the load on the passage; the protective net can effectively prevent tools or items from falling accidentally during maintenance, protect the safety of people and vehicles passing under the bridge, and reduce safety hazards.

[0025] Preferably, the transverse maintenance platform further includes a support plate and multiple fasteners, and the platform frame is fixedly connected to the cover beam through the fasteners; The platform frame extends away from the box girder on the side connected to the cap beam. One end of the support plate is connected to the bottom of the platform frame, and the other end is connected to the extension. The support plate is used to assist in supporting the platform frame.

[0026] In this embodiment, the support plate is used to assist in supporting the platform frame. The angle between the support plate and the platform frame is an acute angle, and the support plate, the platform frame, and the extension form a triangular structure. This design has extremely strong stability and can ensure the safety, reliability, and stability of the transverse maintenance platform during use. Even if only one side is connected to the cap beam, it remains stable. Attached Figure Description

[0027] Figure 1 A front cross-sectional structural schematic diagram of a bridge maintenance platform provided in an embodiment of this application; Figure 2 A top view of a bridge maintenance platform provided in an embodiment of this application; Figure 3 A schematic diagram of the structure of a longitudinal maintenance platform provided in one embodiment of this application, located on a building component connected to both sides of a box girder; Figure 4 A schematic diagram of the drainage flow direction structure of a bridge maintenance platform provided in an embodiment of this application. Figure 1 ; Figure 5 This is a schematic diagram of the structure of a longitudinal drainage channel provided in an embodiment of this application; Figure 6 for Figure 1 A schematic diagram of the cross-sectional structure of AA in the diagram; Figure 7 A schematic diagram of the drainage flow direction structure of a bridge maintenance platform provided in an embodiment of this application. Figure 2 ; Figure 8 A schematic diagram of the structure of a longitudinal maintenance platform provided in one embodiment of this application, located below the cantilever arm of a box girder.

[0028] In the diagram: 1. Box girder; 2. Cap beam; 3. Building component; 4. Sump; 5. Rainwater drainage outlet; 11. Longitudinal maintenance platform; 12. Longitudinal drainage channel; 13. Cantilever arm; 21. Lateral maintenance platform; 22. Lateral drainage channel; 23. Rain grate; 24. Drainage channel; 111. Rectangular frame; 112. Anti-throw net; 113. Inspection ladder; 114. Support components; 115. Height adjustment bracket; 116. Patterned steel plate; 117. Bolts; 121. Rubber parts; 122. Fasteners; 123. Curved steel plates; 124. Connecting plates; 211. Platform frame; 212. Patterned plate; 213. Protective net; 214. Support plate; 215. Fasteners. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solutions of this disclosure, the following detailed, clear, and complete description of this disclosure is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this disclosure and are not intended to limit it.

[0030] In the description of this application, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0031] Those skilled in the art should understand that in the disclosure of this application, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this application.

[0032] The present application will now be described in further detail with reference to the accompanying drawings, see below. Figures 1 to 8 illustrate.

[0033] Example 1 This embodiment provides a bridge maintenance platform, which is applied in the field of bridge construction technology. Specifically, as shown in... Figures 1 to 7As shown, the structure includes a box girder 1 and a cap girder 2. The cap girder 2 is located between two parallel box girders 1. A longitudinal maintenance platform 11 and a longitudinal drainage channel 12 are respectively provided on both sides of the box girder 1. The longitudinal maintenance platform 11 and the longitudinal drainage channel 12 are oriented along the length of the box girder 1, i.e., the direction of vehicle travel. The longitudinal maintenance platform 11 is used for maintenance of the longitudinal drainage channel 12, bridge bearings, and the external structure of the bridge side. A transverse maintenance platform 21 and a transverse drainage channel 22 are respectively provided on both sides of the cap girder 2. The transverse maintenance platform 21 and the transverse drainage channel 22 are oriented along the width of the cap girder 2, i.e., perpendicular to the box girder 1. The longitudinal drainage channel 12 is connected to the transverse drainage channel 22, and the longitudinal maintenance platform 11 is connected to the transverse maintenance platform 21. The transverse maintenance platform 21 is used for maintenance of the transverse drainage channel 21. 2. The transverse drainage channel 22 of the bridge bearings and external side structures is inclined, with an inclination slope of 2% relative to the cap beam. By setting transverse inspection platforms 21 and transverse drainage channels 22 on both sides of the cap beam 2, and longitudinal inspection platforms 11 and longitudinal drainage channels 12 on both sides of the box girder 1, the inspection and drainage functions are effectively covered in all directions of the bridge, further improving maintenance convenience and drainage efficiency. This solves the problem of inspection and drainage in the complex space under the bridge, and also serves as a means of inspecting the bridge bearings and external side structures, such as the bridge deck, the outer side of the piers, and the bridge railings. This not only improves inspection efficiency and safety, but also effectively maintains the overall performance of the bridge and extends its service life, achieving regular, comprehensive, efficient, and low-cost manual inspection. Among them, the longitudinal inspection platform 11 has an entrance and exit connected to the outside, and the longitudinal drainage channel 12 has a drainage outlet. The entrance and exit allow personnel to easily enter from the outside for inspection and maintenance work, and the water flows directly to the outside through the longitudinal drainage channel 12, further improving drainage efficiency.

[0034] like Figure 4 , Figure 7 As shown, the bridge deck of cap beam 2 is provided with a 2% cross slope and a storm drain grating 23 (also known as a storm drain grate, which refers to a device used to separate objects from a sewer opening, usually made of flat steel and twisted or welded flat steel). Rainwater flows through the cross slope to the storm drain grating 23. A storm drain well is also provided vertically to the cap beam, and a drainage channel 24 is provided in the storm drain well. The drainage channel 24 is perpendicular to the transverse drainage channel 22, and one end of the drainage channel 24 is connected to the storm drain grating 23. The other end is connected to the transverse drainage channel 22; the drainage process is as follows: rainwater on the bridge surface flows to the rain grate 23 through a 2% cross slope, then flows to the drainage channel 24 in the rainwater well, the drainage channel 24 flows to the transverse drainage channel 22, the transverse drainage channel 22 flows to the longitudinal drainage channel 12, and finally flows directly into the collection well 4 through the drainage outlet. The water in the collection well 4 flows into the planned river channel from the rainwater outlet 5 of the river channel, realizing the discharge of water flow.

[0035] Furthermore, such as Figure 3 As shown, the longitudinal maintenance platform 11 is located on the building components 3 connected to both sides of the box girder 1. The lowest point of the longitudinal maintenance platform 11 is lower than the lowest point of the cap beam 2. This design is suitable for situations where the bridge structure is a hollow slab beam and it is impossible to set up a longitudinal maintenance platform 11 under the bridge. It can make full use of the side space, break through the limitations of traditional layout, and use the building components 3 on both sides of the box girder 1 as platform support. This makes construction more flexible and convenient, reduces the need to modify the main structure of the bridge, and reduces construction difficulty and cost.

[0036] Furthermore, such as Figure 3 As shown, the longitudinal maintenance platform 11 includes a rectangular frame 111, an anti-throw net 112, and an inspection ladder 113. The anti-throw net 112 is connected to the inner wall of the rectangular frame 111, effectively preventing tools or items from accidentally falling during maintenance, protecting the safety of personnel and vehicles passing under the bridge, and reducing safety hazards. The inspection ladder 113 is used to allow personnel to enter the transverse maintenance platform 21, providing convenient access for personnel to go up and down. The rectangular frame 111 is at least partially fixedly connected to the building components 3 on both sides of the box girder 1, and at least partially fixedly connected to the cap beam 2. The rectangular frame 111 has good load-bearing capacity and stability, and can withstand the weight of maintenance personnel and equipment to ensure the safety and reliability of the longitudinal maintenance platform 11 during use.

[0037] The longitudinal maintenance platform 11 also includes a patterned steel plate 116 and multiple U-bolts 117. The patterned steel plate 116 is fixed to the bottom of the rectangular frame 111 by welding, which facilitates construction and reduces the load on the passage. The rectangular frame 111 is fixedly connected to the building components 3 on both sides of the box girder 1 by multiple U-bolts 117. The connection between the U-bolts 117 and the rectangular frame 111 is fixed by double nuts. The double nuts can prevent the rectangular frame 111 from falling off the U-bolts 117, thereby strengthening the connection strength between the rectangular frame 111 and the building components 3. The U-bolts 117 are pre-embedded, while other components can be directly transported to the site for installation, thereby realizing the rapid installation between various components.

[0038] Furthermore, such as Figure 5As shown, the longitudinal maintenance platform 11 is equipped with support members 114 for supporting the longitudinal drainage channel 12. There are two rows of support members 114, arranged along the length of the longitudinal drainage channel 12. The two rows of support members 114 are located on both sides of the longitudinal drainage channel 12, i.e., on both sides of the longitudinal drainage channel 12 in the radial direction, to evenly distribute the weight of the longitudinal drainage channel 12, ensuring the stability of the longitudinal drainage channel 12 structure, preventing deformation or sagging, and ensuring the normal operation of the drainage system. Adjustable fixing brackets 115 are provided on the sides of the support members 114. Two height-adjustable fixing brackets 115 are respectively connected to two support members 114. The bottom of the height-adjustable fixing brackets 115 and the support members 114 are fixed to the bottom of the rectangular frame 111 by welding. The height-adjustable fixing brackets 115 are used to adjust the height of the longitudinal drainage channel 12. The height-adjustable fixing brackets 115 can flexibly adjust the height of the longitudinal drainage channel 12 to adapt to different installation conditions and design requirements on site, improve the flexibility and adaptability of construction, and facilitate maintenance personnel to clean, maintain and replace, improve maintenance efficiency and extend the service life of the drainage system.

[0039] The longitudinal drainage channel 12 is equipped with a rubber component 121, a fastener 122, and an arc-shaped steel plate 123. The fastener 122 is a steel clamp (also known as a clamp, which is a fastener used to tighten materials to achieve fixation). The rubber component 121 is a rubber gasket. The fastener 122 is sleeved on the upper part of the longitudinal drainage channel 12. The fastener 122 has a semi-circular structure and its shape is the same as that of the longitudinal drainage channel 12. The arc-shaped steel plate 123 is sleeved on the lower part of the longitudinal drainage channel 12 and is located between two support members 114. The end of the arc-shaped steel plate 123 is connected to the end of the fastener 122. The rubber component 121 is sleeved on the longitudinal drainage channel 12. The rubber component 121 can enhance the sealing effect of the longitudinal drainage channel 12, reduce aging and cracking caused by long-term use or environmental factors, and extend the service life of the drainage channel. Fastener 122 and arc-shaped steel plate 123 are both located on the outside of rubber part 121, that is, on the side away from longitudinal drainage channel 12. By setting fastener 122, arc-shaped steel plate 123 and rubber part 121, damage to longitudinal drainage channel 12 can be avoided. At the same time, the stability and sealing of longitudinal drainage channel 12 are enhanced, effectively preventing water leakage and ensuring smooth operation of drainage system.

[0040] The fastener 122 has bends at both ends, and the height adjustment bracket 115 has a connecting plate 124, which is a steel plate. The bent part of the fastener 122 is connected to the connecting plate 124 and the height adjustment bracket 115 by bolts. Through the bolt connection, the fastener 122 can be easily disassembled and reinstalled. With the adjustment function of the height adjustment bracket 115, the height of the longitudinal drainage channel 12 can be flexibly adjusted.

[0041] Furthermore, such as Figure 6 As shown, the transverse maintenance platform 21 includes a platform frame 211, a checkered plate 212, and a protective net 213. The checkered plate 212 is a checkered steel plate, and the platform frame 211 has a U-shaped structure. The platform frame 211 is fixedly connected to the cap beam 2, that is, one side of the platform frame 211 is fixedly connected to the cap beam 2, and the other side extends towards the box girder 1, with both sides parallel to the bottom. The checkered plate 212 is at least partially connected to the inner wall of the bottom of the platform frame 211, and at least partially connected to the inner wall of the platform frame 211 away from the cap beam 2. The checkered plate 212 is fixedly connected to the inner wall of the platform frame 211 by welding, which facilitates construction and reduces the load on the passage. The protective net 213 is connected to the inner wall of the platform frame 211 away from the cap beam 2. The protective net 213 is set above the checkered plate 212. The protective net 213 can effectively prevent tools or items from falling accidentally during maintenance, protect the safety of people and vehicles passing under the bridge, and reduce safety hazards.

[0042] The transverse maintenance platform 21 also includes a support plate 214 and multiple fasteners 215. The fasteners 215 are U-bolts. The platform frame 211 is fixedly connected to the cap beam 2 through the fasteners 215. The platform frame 211 is also fixedly connected to the cap beam 2 through multiple L-bolts. The side of the platform frame 211 connected to the cap beam 2 extends away from the box girder 1. One end of the support plate 214 is connected to the bottom of the platform frame 211, and the other end of the support plate 214 is connected to the extension of the platform frame 211. The support plate 214 is used to assist in supporting the platform frame 211. The angle between the support plate 214 and the platform frame 211 is an acute angle. The support plate 214, the platform frame 211, and the extension form a triangular structure. This design has extremely strong stability and can ensure the safety, reliability, and stability of the transverse maintenance platform 21 during use. Even if only one side is connected to the cap beam 2, it remains stable.

[0043] Example 2 The difference between this embodiment and Embodiment 1 is that, Figure 8As shown, the longitudinal maintenance platform 11 is located below the cantilever 13 of the box girder 1 (also known as a cantilever beam, a type of building component, referring to a vertically stressed cantilever member extending from the main structure, connected to the main structure at one end, and unsupported at the other end). When the bridge structure is a large cantilever box girder 1, the longitudinal maintenance platform 11 needs to be set below the box girder 1 to enable the inspection and maintenance of the longitudinal drainage channel 12. However, the cantilever 13 has a long overhang, and the space under the bridge is limited or has a complex shape. Setting the longitudinal maintenance platform 11 below the cantilever 13 of the box girder 1 makes full use of the space in this area and avoids interference with other structures. Or equipment conflict; the lowest point of the longitudinal maintenance platform 11 is higher than the lowest point of the cap beam 2. The longitudinal maintenance platform 11 also includes a rectangular frame 111, an anti-throw net 112, a patterned steel plate 116, and multiple U-nuts. The rectangular frame 111 is a rectangular structure and is at least partially fixedly connected to the box beam 1 and the cap beam 2. The anti-throw net 112 is set on the side of the rectangular frame 111 away from the box beam 1. The patterned steel plate 116 is welded to the inner wall of the rectangular frame 111. The rectangular frame 111 is fixedly connected to the box beam 1 by multiple U-nuts. The rest are the same and will not be described again.

[0044] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The descriptions of the embodiments above are only for the purpose of helping to understand the present application and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A bridge maintenance platform, characterized in that, include: Box girder (1), with a longitudinal maintenance platform (11) and a longitudinal drainage channel (12) respectively on both sides of the box girder (1). The longitudinal maintenance platform (11) is used to maintain the longitudinal drainage channel (12), bridge bearings and external structures on the side of the bridge. The cap beam (2) is located between two parallel box beams (1). The cap beam (2) is provided with a transverse maintenance platform (21) and a transverse drainage channel (22) on both sides. The transverse maintenance platform (21) is used to inspect the transverse drainage channel (22), bridge bearings and external structures on the side of the bridge. The longitudinal drainage channel (12) is connected to the transverse drainage channel (22), and the longitudinal maintenance platform (11) is connected to the transverse maintenance platform (21). The longitudinal maintenance platform (11) is provided with an entrance and exit connected to the outside, and the longitudinal drainage channel (12) is provided with a drainage outlet.

2. The bridge maintenance platform according to claim 1, characterized in that, The longitudinal maintenance platform (11) is located below the cantilever arm (13) of the box girder (1).

3. The bridge maintenance platform according to claim 1, characterized in that, The longitudinal maintenance platform (11) is located on the building components (3) that are connected to both sides of the box girder (1).

4. The bridge maintenance platform according to claim 3, characterized in that, The lowest point of the longitudinal maintenance platform (11) is lower than the lowest point of the cap beam (2).

5. The bridge maintenance platform according to claim 3, characterized in that, The longitudinal maintenance platform (11) includes a rectangular frame (111), an anti-throw net (112), and an inspection ladder (113). The anti-throw net (112) is connected to the inner wall of the rectangular frame (111), and the inspection ladder (113) is used to allow personnel to enter the transverse maintenance platform (21). The rectangular frame (111) is at least partially fixedly connected to the building components (3) connected to both sides of the box girder (1), and at least partially fixedly connected to the cap beam (2).

6. The bridge maintenance platform according to claim 1, characterized in that, The longitudinal maintenance platform (11) is provided with a support member (114) for supporting the longitudinal drainage channel (12). The support member (114) is arranged in two rows along the length of the longitudinal drainage channel (12). The support member (114) is provided with a height adjustment bracket (115) on its side. The two height adjustment brackets (115) are respectively connected to the two support members (114). The height adjustment brackets (115) are used to adjust the height of the longitudinal drainage channel (12).

7. The bridge maintenance platform according to claim 6, characterized in that, The longitudinal drainage channel (12) is provided with a rubber part (121), a fastener (122) and an arc-shaped steel plate (123). The fastener (122) is sleeved on the upper part of the longitudinal drainage channel (12), and the arc-shaped steel plate (123) is sleeved on the lower part of the longitudinal drainage channel (12) and located between two support members (114). The end of the arc-shaped steel plate (123) is connected to the end of the fastener (122). The rubber component (121) is fitted onto the longitudinal drainage channel (12), and the fastener (122) and the arc-shaped steel plate (123) are located on the outside of the rubber component (121).

8. The bridge maintenance platform according to claim 7, characterized in that, Both ends of the fastener (122) are bent, and the height adjustment bracket (115) is provided with a connecting plate (124). The bent part of the fastener (122) and the connecting plate (124) are connected to the height adjustment bracket (115) by bolts.

9. The bridge maintenance platform according to claim 1, characterized in that, The transverse maintenance platform (21) includes a platform frame (211), a patterned plate (212), and a protective net (213). The platform frame (211) is fixedly connected to the cap beam (2), and the platform frame (211) is a U-shaped structure. The patterned plate (212) is at least partially connected to the inner wall of the bottom of the platform frame (211) and at least partially connected to the inner wall of the platform frame (211) away from the cap beam (2); The protective net (213) is connected to the inner wall of the platform frame (211) away from the cap beam (2), and the protective net (213) is set above the patterned plate (212).

10. The bridge maintenance platform according to claim 9, characterized in that, The transverse maintenance platform (21) also includes a support plate (214) and multiple fasteners (215). The platform frame (211) is fixedly connected to the cap beam (2) through the fasteners (215). The side of the platform frame (211) connected to the cap beam (2) extends away from the box beam (1). One end of the support plate (214) is connected to the bottom of the platform frame (211), and the other end is connected to the extension. The support plate (214) is used to assist in supporting the platform frame (211).