A construction operation platform for disease treatment and maintenance of existing railway bridge
By designing a construction platform with suspended external and internal systems and reinforcement structures, the problem that existing platforms cannot comprehensively address bridge defects has been solved, enabling safe and efficient bridge defect treatment and maintenance, and reducing construction costs and difficulties.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING JUNCHENG RAILWAY ENG TECH CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-02
AI Technical Summary
Existing bridge defect treatment and maintenance platforms cannot simultaneously treat defects on the bridge bottom, bridge deck, and bridge sides, and have poor safety, making it impossible to complete construction efficiently and safely within the limited time window.
A construction work platform was designed, comprising an external suspension system, an internal suspension system, an operating platform, and a reinforcement system. The external suspension system hangs down from the bridge deck and surrounds the outside and bottom of the bridge. The internal suspension system is fixed between the beams. The operating platform is laid horizontally on the external suspension system. The reinforcement system surrounds the outside and consists of longitudinal load-bearing members, vertical hooks, bottom members, and reinforcement steel cables, forming a multi-layer operating platform and is surrounded by a safety net to enhance safety.
It has achieved comprehensive treatment of bridge defects, improved construction safety and efficiency, reduced costs, and the materials are easy to transport and reuse, making it suitable for multi-point maintenance.
Smart Images
Figure CN224314035U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of railway tunnel traffic engineering technology, and in particular relates to a construction operation platform for the treatment and maintenance of defects in existing railway bridges. Background Technology
[0002] As existing railways age, various defects in bridges, a crucial component of the railway system, are becoming increasingly apparent and frequent. These defects affect different parts of the bridges, including damage to railings, walkways, and brackets on the bridge deck, as well as cracks and spalling on the sides and underside of the bridge. If these defects are not addressed promptly and effectively, they will inevitably jeopardize train safety to varying degrees. Therefore, to ensure the normal operation of the railway, the treatment and maintenance of railway bridge defects has become a focus of attention for relevant railway departments.
[0003] The locations of defects in existing railway bridges are often unpredictable. Therefore, to effectively detect and treat these defects, it is necessary to conduct comprehensive and detailed inspections and treatments of the bridge deck, sides, and underside, all of which must be carried out within designated maintenance windows. Consequently, to safely, efficiently, and conveniently complete the treatment of these bridge defects within the limited maintenance window time, it is necessary to construct a construction platform for the treatment and maintenance of defects in existing railway bridges. Existing bridge construction platforms suffer from drawbacks such as limited maintenance points, inability to simultaneously treat defects on the underside, deck, and sides, and poor safety.
[0004] Therefore, it is of great significance to provide a construction operation platform that is comprehensive and safe for the treatment and maintenance of existing railway bridge defects. Utility Model Content
[0005] The main objective of this utility model is to provide a construction operation platform for the treatment and maintenance of defects in existing railway bridges. The technical problem to be solved is how to provide a construction operation platform for the treatment and maintenance of defects in existing railway bridges, so that the treatment and maintenance of railway bridge defects is comprehensive and safe to carry out, and thus more suitable for application.
[0006] The objective of this utility model and the technical problem it solves are achieved through the following technical solution. A construction operation platform for the treatment and maintenance of defects in existing railway bridges, according to this utility model, comprises:
[0007] The aforementioned external suspension system has a frame structure, hangs down from the bridge deck of the railway bridge, is fixed to the aforementioned railway bridge, and surrounds the outer side and bottom of the aforementioned railway bridge.
[0008] The aforementioned internal suspension system is fixed between the beams of the aforementioned railway bridge and connected to the bottom of the aforementioned external suspension system.
[0009] The operating platform is horizontally laid on the aforementioned external suspension system;
[0010] The aforementioned reinforcement system is located outside the aforementioned external suspension system.
[0011] The purpose of this utility model and the technical problems to be solved can be further achieved by the following technical measures.
[0012] Preferably, in the aforementioned construction work platform for the treatment and maintenance of defects in existing railway bridges, the suspended external system includes:
[0013] Longitudinal load-bearing members, the extension direction of the aforementioned longitudinal load-bearing members being parallel to the extension direction of the aforementioned railway bridge, are installed on the bridge deck of the aforementioned railway bridge.
[0014] A vertical hook, wherein the aforementioned vertical hook is vertically downward, and the upper end hooks onto the aforementioned longitudinal force-bearing member and is fixedly connected to the aforementioned longitudinal force-bearing member;
[0015] The bottom member, which is horizontally arranged, is located at the bottom of the aforementioned railway bridge beam and is fixedly connected to the aforementioned vertical hook at an intersecting position. The aforementioned bottom member includes longitudinal members and transverse members. The extension direction of the aforementioned longitudinal members is parallel to the extension direction of the aforementioned railway bridge, and the extension direction of the aforementioned transverse members is perpendicular to the extension direction of the aforementioned railway bridge in the horizontal plane. The aforementioned longitudinal members and the aforementioned transverse members are fixedly connected at an intersecting position.
[0016] Preferably, the aforementioned construction platform for the treatment and maintenance of defects in existing railway bridges has pads installed under the aforementioned longitudinal load-bearing members, and the aforementioned pads are installed at the intersection of the existing brackets and railing columns of the aforementioned railway bridge.
[0017] Preferably, in the aforementioned construction operation platform for the treatment and maintenance of defects in existing railway bridges, the spacing of the vertical hooks is ≤1.2m.
[0018] Preferably, in the aforementioned construction operation platform for the treatment and maintenance of defects in existing railway bridges, the reinforcement system includes an outer reinforcement steel cable and a protective rod; the aforementioned outer reinforcement steel cable is fixed to the bottom of the rail, and the aforementioned protective steel pipe is fixed to the aforementioned vertical hook.
[0019] Preferably, in the aforementioned construction operation platform for the treatment and maintenance of defects in existing railway bridges, the suspended external system has two layers of bottom members, and the aforementioned operation platform is laid on the aforementioned bottom members to form a first-layer operation platform and a second-layer operation platform.
[0020] Preferably, in the aforementioned construction work platform for the treatment and maintenance of defects in existing railway bridges, the suspended internal system includes:
[0021] The aforementioned square timber is fixed between two opposing beams of the aforementioned railway bridge, positioned at the midpoint of the bottom end of the aforementioned beams; and,
[0022] The steel cable is fixedly connected to the aforementioned square timber, hangs down from the aforementioned square timber, and is fixedly connected to the bottom of the aforementioned external suspension system.
[0023] Preferably, in the aforementioned construction work platform for the treatment and maintenance of defects in existing railway bridges, the spacing of the square timbers is ≤1.5m.
[0024] Preferably, in the aforementioned construction operation platform for the treatment and maintenance of defects in existing railway bridges, the operation platform is constructed by laying several horizontally arranged bamboo frames adjacent to each other on the aforementioned external suspension system.
[0025] Preferably, the aforementioned construction operation platform for the treatment and maintenance of defects in existing railway bridges also includes a safety net, which is installed outside the aforementioned external suspension system and the operation platform.
[0026] By employing the above technical solution, the construction operation platform of this utility model for the treatment and maintenance of defects in existing railway bridges has at least the following advantages:
[0027] This utility model proposes a construction platform for the treatment and maintenance of defects in existing railway bridges. Its external suspension system hangs from the bridge deck, surrounding the outer side and bottom of the bridge. The operating platform formed on the bridge deck, sides, and bottom is suitable for construction, thus offering excellent versatility. Furthermore, by setting an internal suspension system in the middle of the beam, the deflection of the members is significantly reduced, increasing the platform's load-bearing capacity and ensuring its safety.
[0028] Furthermore, this utility model stabilizes the frame structure by introducing several longitudinal load-bearing members, vertical hooks, transverse members, longitudinal members, and protective members. In addition, pads are placed under the longitudinal load-bearing members to largely prevent movement of the members and increase the stability of the frame.
[0029] Furthermore, the construction platform of this utility model uses square timber, bamboo scaffolding, and steel pipes as combined erection materials. These materials are easy to transport and assemble, ensuring the convenience of construction. At the same time, since these materials are inexpensive and assembly does not require much manpower, the construction cost can be guaranteed. In addition, these steel pipes and square timbers will not be damaged and can be reused at multiple maintenance points, greatly reducing the cost of the construction platform.
[0030] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description
[0031] Figure 1 This is a cross-sectional schematic diagram of a construction operation platform for the treatment and maintenance of defects in existing railway bridges, as shown in some embodiments of this utility model.
[0032] Figure 2 (a) and (b) are Figure 1 Enlarged view and top view of point A in the middle;
[0033] The components include: 1. External suspension system; 2. Internal suspension system; 3. Operating platform; 4. Longitudinal load-bearing members; 5. External reinforcing steel cables; 6. Vertical hooks; 7. Existing brackets; 8. Bridge deck railing posts; 9. Pads; 10. Protective members; 11. Horizontal members; 12. Longitudinal members; 13. First-level operating platform; 14. Second-level operating platform; 15. Square timber; 16. Steel cables; 17. Safety net; 18. Fasteners. Detailed Implementation
[0034] To further illustrate the technical means and effects adopted by this utility model to achieve its intended purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, details the specific implementation, structure, features, and effects of a construction operation platform for the treatment and maintenance of defects in existing railway bridges according to this utility model. In the following description, different "embodiments" or "embodiments" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics in one or more embodiments can be combined in any suitable manner.
[0035] This utility model proposes a construction operation platform for the treatment and maintenance of existing railway bridge defects, such as... Figure 1 As shown, it includes:
[0036] The aforementioned external suspension system 1 has a frame structure, hangs down from the bridge deck of the railway bridge, is fixed to the aforementioned railway bridge, and surrounds the outer side and bottom of the aforementioned railway bridge.
[0037] The internal suspension system 2 is fixed between the beams of the aforementioned railway bridge and connected to the bottom of the aforementioned external suspension system 1.
[0038] Operating platform 3, the aforementioned operating platform 3 is laid horizontally on the aforementioned external suspension system 1;
[0039] The aforementioned reinforcement system is located outside the aforementioned external suspension system 1.
[0040] Specifically, the external suspension system 1 is the load-bearing structure of the construction platform. It hangs down from the bridge deck of the railway bridge, surrounding the outer side and bottom of the bridge. The operating platform 3 formed on the bridge deck, sides, and bottom is suitable for construction, thus providing the construction platform with good omnidirectional capabilities. Furthermore, by setting the internal suspension system 2 in the middle of the beam, the deflection of the members is significantly reduced, increasing the platform's load-bearing capacity and ensuring the safety of the construction platform.
[0041] The external suspension system 1 includes longitudinal load-bearing members 4, vertical hooks 6, and bottom members. The longitudinal load-bearing members 4 extend in a direction parallel to the extension direction of the aforementioned railway bridge and are installed on the bridge deck of the aforementioned railway bridge.
[0042] The vertical hook 6 hangs vertically downwards, with its upper end hooked onto the aforementioned longitudinal load-bearing member 4 and fixedly connected to it. Preferably, the vertical hook 6 also has a lower hook, which hooks onto the transverse member 11 at the bottom of the external suspension system 1. The vertical hook 6 can be a vertical steel bar hook. Preferably, the spacing of the vertical hooks 6 is ≤1.2m. The bottom member is horizontally arranged at the bottom of the aforementioned railway bridge beam and fixedly connected to the aforementioned vertical hook 6 at an intersecting position. The aforementioned bottom member includes a longitudinal member 12 and a transverse member 11. The extension direction of the aforementioned longitudinal member 12 is parallel to the extension direction of the aforementioned railway bridge, and the extension direction of the aforementioned transverse member 11 is perpendicular to the extension direction of the aforementioned railway bridge in the horizontal plane. The aforementioned longitudinal member 12 and the aforementioned transverse member 11 are fixedly connected at an intersecting position. Connecting fasteners, swivel fasteners, and / or right-angle fasteners can be used for the fixed connection. The poles in the external suspension system 1 can be selected from steel pipes, I-beams and / or channel steel, etc., depending on the actual situation, with steel pipes being preferred; the specifications and dimensions of the poles are not specifically limited, and their length is determined according to the platform size, and commercially available ordinary scaffolding pipes are sufficient.
[0043] The bottom support structure can be installed in one layer or multiple layers. The operating platform 3 is laid on the bottom support structure, and the number and location of these layers are determined based on the construction location. Preferably, as follows... Figure 1As shown, two layers of bottom members are set up, and an operating platform 3 is laid on them. The first operating platform 13 facilitates the maintenance of the side of the bridge, and the second operating platform 14 facilitates the maintenance of the bottom of the bridge.
[0044] To prevent the longitudinal load-bearing member 4 from moving and to increase the stability of the external suspension system 1, a pad 9 is installed under the longitudinal load-bearing member 4. Preferably, the pad 9 is installed at the intersection of the existing bracket and the railing post of the railway bridge. The pad 9 can be made of materials with high friction and good load-bearing capacity, such as rubber or wood, depending on the actual situation. The size of the pad 9 depends on the on-site installation space.
[0045] The internal suspension system 2 is located inside the external suspension system 1, fixed between two opposing beams, increasing the load-bearing capacity of the operating platform 3, ensuring the safety of maintenance and construction, and preventing personnel injury. In the internal suspension system 2, rods or frames can be fixed between the two opposing beams. The rods or frames can be made of wood or steel, such as square timber 15 or a frame welded from steel pipes. Ropes or rods can be used to connect the rods or frames to the bottom of the external suspension system 1. Preferably, the internal suspension system 2 includes several square timbers 15 and steel cables 16. The square timbers 15 are secured between the two opposing beams, positioned at the middle of the bottom end of the beam. The steel cables 16 are fixed to the square timbers 15 by winding or other methods, hanging down from the square timbers 15 and connecting to the bottom of the external suspension system 1. Preferably, the spacing of the square timbers 15 is ≤1.5m. The dimensions of the square timbers 15 are determined according to the spacing at the bottom of the T-beams, and the length of the steel cables 16 is determined according to the on-site construction location of the bridge, and is not specifically limited in this utility model.
[0046] Preferably, the operating platform 3 is formed by laying several horizontally arranged bamboo frames adjacent to each other on the external suspension system 1. The overlap length of the bamboo frames is used to support workers performing construction on them, so it needs to have sufficient load-bearing capacity and safety. In this utility model, the overlap length of the bamboo frames is preferably ≥20cm, the thickness of the bamboo frames is ≥4cm, and the width of the bamboo frames is ≥40cm.
[0047] Preferably, the aforementioned reinforcement system includes an outer reinforcement steel cable 5 and a protective rod 10; the aforementioned outer reinforcement steel cable 5 is fixed to the bottom of the rail, and the aforementioned protective steel pipe is fixed to the aforementioned vertical hook 6.
[0048] To enhance the safety of construction on the operating platform 3, the construction platform also includes a safety net 20, which is installed around the outside of the aforementioned external suspension system 1 and the operating platform 3. Specifically, the safety net 20 can be securely tied to the protective rods 10, the longitudinal load-bearing rods 4, and the longitudinal rods 12. The length and width of the safety net 20 are determined according to the on-site installation space.
[0049] The present invention will be further described below with reference to specific embodiments, but this should not be construed as a limitation on the scope of protection of the present invention. Some non-essential improvements and adjustments made by those skilled in the art based on the above content of the present invention still fall within the scope of protection of the present invention.
[0050] Unless otherwise specified, all materials and reagents mentioned below are commercially available products well known to those skilled in the art; unless otherwise specified, all methods described are methods known in the art. Unless otherwise defined, the technical or scientific terms used should have the ordinary meaning understood by those skilled in the art to which this utility model pertains.
[0051] In the following structural description of the construction operation platform, the directions in the three-dimensional coordinates have the following meanings: "Vertical" indicates the vertical direction from top to bottom or from bottom to top; "Longitudinal" indicates the direction along the bridge in the horizontal plane, that is, from front to back; "Transverse" indicates the direction perpendicular to the bridge in the horizontal plane, that is, from left to right.
[0052] Example
[0053] This embodiment provides a construction operation platform for the treatment and maintenance of defects in existing railway bridges and its specific implementation method.
[0054] like Figure 1 As shown in the figure, the construction operation platform for the treatment and maintenance of existing railway bridge defects provided in this embodiment includes:
[0055] The external suspension system 1 includes longitudinal load-bearing members 4, longitudinal members 12, transverse members 11, vertical hooks 6, protective members 10, and pads 9. The upper end of the vertical hook 6 is hooked onto the longitudinal load-bearing member 4, and the lower end is hooked onto the transverse member 11 at the bottom of the external suspension system 1. The vertical hooks 6 are vertical steel hooks, and the spacing between the vertical hooks 6 is 1.2m. To prevent slippage of the longitudinal load-bearing members 4 and increase the stability of the suspension system, the longitudinal load-bearing members 4 are mounted on pads 9, which are located at the intersection of the existing bracket 7 and the bridge deck railing post 8. The pads 9 can be made of materials with high friction and good load-bearing capacity, such as rubber or wood. The size of the pads 9 depends on the available installation space. In this embodiment, the wooden pads 9 consist of 15 square timbers measuring 20cm × 10cm × 12cm. Longitudinal load-bearing member 4, longitudinal member 12, transverse member 11, and protective member 10 all use members with a diameter of Steel pipes.
[0056] The internal suspension system 2, located inside the external suspension system 1, comprises several square timbers 15 and steel cables 16. The square timbers 15 are secured between two opposing beams, positioned at the midpoint of the beam's bottom end. The steel cables 16 are wound around the square timbers 15, hanging down from them, and are fixed to the longitudinal members 12 at the bottom of the external suspension system 1 using snap-fit mechanisms. The square timbers 15 are spaced 1.2m apart.
[0057] Operating platform 3 includes a first-layer operating platform 13 and a second-layer operating platform 14. Operating platform 3 is formed by laying several horizontally arranged bamboo frames adjacent to each other on the bottom poles of the external suspension system 1. The overlap length of the bamboo frames is 25cm, the thickness is 5cm, and the width is 50cm.
[0058] To prevent personal injury, the construction platform for bridge defect treatment and maintenance of this utility model also includes a reinforcement system. The reinforcement system includes outer reinforcing steel cables 5, and protective steel pipes 10 and 14. One end of the outer reinforcing steel cables 5 is fixed to the bottom of the rail, and the spacing of the reinforcing steel cables 16 is ≤10m. The protective steel pipes are fixed to the vertical hooks 6 via fasteners 18, forming the reinforcement system. The height of the protective steel pipes is 1.2–1.4m. The protective steel pipes are connected and fixed to the longitudinal load-bearing members 4, the transverse members 11, and the vertical hooks 6 under the bridge by binding. In some specific embodiments of this utility model, the spacing of the outer reinforcing steel cables 5 is 8m, and the height of the protective steel pipes is 1.2m.
[0059] Safety net 20 is installed around the outside of the suspension external system 1 and the operating platform 3. Safety net 20 is connected and fixed to the longitudinal load-bearing members 4, transverse members 11 and vertical hooks 6 under the bridge by binding.
[0060] The implementation process of this utility model is as follows: During the skylight period, firstly, the outermost protective plate of the pedestrian walkway on the bridge is removed. A pad 9 is placed at the intersection of the bracket and the railing post. The longitudinal load-bearing member 4 is placed on the pad 9 and secured. Vertical hooks 6 are placed downwards from the pedestrian walkways on both sides of the bridge. Horizontal members 11 are laid at the suspended platform at the bridge end. The vertical hook 6 is lifted from the bridge deck and moved longitudinally to the other end of the beam. The horizontal members 11 are then installed from far to near. Square timber 15 is placed in the middle of the bottom ends of the two beams at the bottom of the bridge. The longitudinal member 12 is suspended from the square timber 15 using steel cables 16. Protective members 10 are installed on the vertical hook 6, and wood chips are inserted into the connection points to secure the fasteners 18. Bamboo scaffolding is laid on the top and bottom layers of the external suspension system 1 until the work area is fully covered. Simultaneously, a safety net 20 is added to the work area between the top and bottom layers of the external suspension system 1 and securely tied. After the construction platform is erected, operations are carried out on the work surface. After construction is completed, the site will be cleaned up and the platform will be dismantled after passing on-site inspection, thus ending the construction operation.
[0061] Engineering practice has shown that, for the problem of repairing and maintaining existing bridge defects, the construction platform for repairing and maintaining existing railway bridge defects described in this utility model can safely and efficiently complete the repair and maintenance work while reducing construction costs and difficulties. It is a highly efficient platform that can be used for bridge construction.
[0062] The embodiments of this disclosure have now been described in detail. To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.
[0063] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any manner.
[0064] The technical features in the claims and / or specification of this utility model can be combined, and the combination is not limited to the combinations obtained by reference in the claims. Technical solutions obtained by combining the technical features in the claims and / or specification are also within the scope of protection of this utility model.
[0065] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.
Claims
1. A construction operation platform for the treatment and maintenance of defects in existing railway bridges, characterized in that, It includes: An external suspension system having a frame structure, hanging down from the bridge deck of the railway bridge, fixed to the railway bridge, and surrounding the outside and bottom of the railway bridge; An internal suspension system is fixed between the beams of the railway bridge and connected to the bottom of the external suspension system. An operating platform, which is horizontally laid on the external suspension system; A reinforcement system is provided on the outside of the external suspension system.
2. The construction operation platform according to claim 1, characterized in that, The external suspension system includes: A longitudinal load-bearing member, wherein the extension direction of the longitudinal load-bearing member is parallel to the extension direction of the railway bridge, and is disposed on the bridge deck of the railway bridge; A vertical hook, wherein the vertical hook is vertically downward and the upper end is hooked onto the longitudinal force-bearing member; The bottom member is horizontally positioned at the bottom of the railway bridge beam and is fixedly connected to the vertical hook at an intersecting position. The bottom member includes longitudinal members and transverse members. The longitudinal members extend parallel to the extension direction of the railway bridge, and the transverse members extend perpendicular to the extension direction of the railway bridge in the horizontal plane. The longitudinal members and the transverse members are fixedly connected at an intersecting position.
3. The construction operation platform according to claim 2, characterized in that, A pad is installed under the longitudinal load-bearing member, and the pad is installed at the intersection of the existing bracket and the railing post of the railway bridge.
4. The construction operation platform according to claim 2, characterized in that, The spacing between the vertical hooks is ≤1.2m.
5. The construction operation platform according to claim 2, characterized in that, The reinforcement system includes an outer reinforcing steel cable and a protective rod; the outer reinforcing steel cable is fixed to the bottom of the rail, and the protective rod is fixed to the vertical hook.
6. The construction operation platform according to claim 2, characterized in that, The external suspension system has two layers of bottom rods, and the operating platform is laid on the bottom rods to form a first operating platform and a second operating platform.
7. The construction operation platform according to claim 1, characterized in that, The internal suspension system includes: The square timber, fixed between two opposite beams of the railway bridge, is positioned at the midpoint of the bottom end of the beam; and, A steel cable is fixedly connected to the square timber, hangs down from the square timber, and is fixedly connected to the bottom of the external suspension system.
8. The construction operation platform according to claim 7, characterized in that, The spacing between the square timbers is ≤1.5m.
9. The construction operation platform according to claim 1, characterized in that, The operating platform is constructed by laying several horizontally arranged bamboo frames adjacent to each other on the external suspension system.
10. The construction operation platform according to claim 1, characterized in that, It also includes a safety net, which is installed around the outside of the suspended external system and the operating platform.