Cross-sea railway bridge pier fence structure

By constructing a concrete panel structure on the piers of the cross-sea railway bridge, the problem of steel structure hanging fences being easily damaged in harsh marine environments was solved, the durability and stability of the structure were improved, and maintenance and operating costs were reduced.

CN120797529APending Publication Date: 2025-10-17CHINA RAILWAY SHANGHAI DESIGN INST GRP CO LTD
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Patent Information

Application Number
CN202511076884.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-01
Publication Date
2025-10-17

AI Technical Summary

Technical Problem

The steel structure hanging fences of cross-sea railway bridges are easily damaged in the harsh marine environment, resulting in reduced structural stability, greater construction difficulty, high initial and maintenance costs, and increased operational risks.

Method used

A concrete panel structure is adopted. By reserving vertical main reinforcement during the construction of the pier body, tying the panel reinforcement, and pouring concrete after installing the formwork, an integral structure with the pier body is formed to improve durability and stability.

Benefits of technology

Concrete panels have higher strength and stability, can withstand harsh marine environments, extend service life, reduce maintenance frequency and costs, and are in line with the concept of sustainable development.

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Abstract

The invention relates to the technical field of cross-sea railway bridges, in particular to a cross-sea railway bridge pier fence structure which comprises a concrete coaming, vertical main reinforcements of the concrete coaming are main reinforcements of a pier body, a formwork of the concrete coaming is based on the main reinforcements of the pier body, and an integral structure is formed between the concrete coaming and the pier body. The invention has the advantages of strong practicability, higher strength and stability, capability of effectively resisting erosion of severe marine environments such as strong wind, sea waves and the like, and capability of guaranteeing the safety of railway operation. The service life of the concrete coaming is longer, the maintenance frequency is reduced, replacement is not needed, and the long-term operation cost is reduced. The influence of the production and installation process of the concrete coaming on the environment is relatively small, a new thought and method are provided for solving the problems that a cross-sea railway crane fence is insufficient in durability and high in operation and maintenance cost, the concept of sustainable development is met, and high popularization and use value is achieved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cross-sea railway bridges, and particularly to a cross-sea railway bridge pier fence structure. BACKGROUND

[0002] With the rapid development of railway construction, the construction technology of cross-sea railways has become increasingly mature, overcoming many technical difficulties. For example, builders need to overcome the influence of complex environments such as strong winds near the sea, strong corrosion, large tidal differences, and earthquake belts. However, the development of cross-sea railways also faces some challenges and difficulties. The harsh marine environment poses great challenges to the operation and maintenance of cross-sea railways, with steel structural materials being severely eroded by the marine environment, affecting the overall safety of the structure.

[0003] Steel structure hanging fences are commonly used for railway bridge piers, but there are the following shortcomings in using steel structure hanging fences in cross-sea railways: 1) greatly affected by natural environment: Cross-sea railways are usually located in harsh marine environments, and steel structure hanging fences may be severely affected by natural factors such as strong winds, large waves, and seawater corrosion, resulting in structural stability damage and increased maintenance costs. Especially when the location of the cross-sea railway bridge is in a typhoon-prone area, the steel structure hanging fence may be damaged due to excessive wind force, and even safety accidents may occur.

[0004] 2) high construction difficulty: The construction environment of cross-sea railways is complex, and the installation and debugging of steel structure hanging fences require high-precision technology and equipment support. High-altitude work on the sea is difficult to ensure the safety of construction personnel, and the construction efficiency may be restricted by natural factors such as weather and sea waves.

[0005] 3) durability challenge: Steel structure hanging fences are exposed to the marine environment for a long time and are prone to corrosion and wear, requiring regular maintenance and replacement. This not only increases maintenance costs but also may affect the normal operation of cross-sea railways.

[0006] 4) high initial investment cost: The manufacturing, transportation, and installation costs of steel structure hanging fences are high, resulting in a significant increase in the initial investment cost of cross-sea railways. This limits the economic benefits of the project in the initial stage.

[0007] 5) high maintenance cost: As mentioned earlier, steel structure hanging fences require regular maintenance and replacement, which increases the long-term maintenance cost of the project. In the marine environment, the difficulty and cost of maintenance work are usually higher, further compressing the economic benefits of the project.

[0008] 6) increased operational risk: Damage to steel structure hanging fences may cause the operation of cross-sea railways to be interrupted, causing inconvenience to passengers and cargo transportation. This not only affects the operational income of the project but also may lead to legal disputes and compensation liability. SUMMARY

[0009] The purpose of the present application is to provide a cross-sea railway bridge pier fence structure according to the deficiencies of the prior art, by reserving the vertical main reinforcement of the fence plate during the construction of the pier body, binding the fence plate reinforcement first, then installing the fence plate formwork, and finally pouring the fence plate concrete, the construction of the concrete fence plate which forms an integral whole with the pier body is realized, and the use performance of the fence is effectively improved.

[0010] The purpose of the present application is achieved by the following technical solutions: A cross-sea railway bridge pier fence structure, comprising a pier body, a tray and a top hat, wherein the tray is arranged above the pier body, and the top hat is arranged above the tray, characterized in that it comprises a concrete fence plate, the vertical main reinforcement of the concrete fence plate is the main reinforcement of the pier body, the formwork of the concrete fence plate is based on the main reinforcement of the pier body, and the concrete fence plate and the pier body form an integral structure.

[0011] The concrete fence plate has fence plate reinforcement, the fence plate reinforcement is connected and fixed with the main reinforcement of the pier body to form an integral structure and constitute the reinforcement of the concrete fence plate.

[0012] A short column is arranged on the top hat, a support abutment is arranged on the short column, and a certain distance is left between the concrete fence plate and the short column.

[0013] A drain pipe is arranged on the top hat, the drain pipe is located at the corner position and in the area between the short column and the concrete fence plate.

[0014] The present application has the advantages of strong practicability, solves the problems of insufficient durability of the hanging fence and high maintenance cost. Compared with the steel structure hanging fence, the concrete fence plate has higher strength and stability, can effectively resist the erosion of strong wind, sea waves and other harsh marine environments, and ensures the safety of railway operation. The service life of the concrete fence plate is longer, the maintenance frequency is reduced, and the long-term operation cost is reduced. The production and installation process of the concrete fence plate has relatively small impact on the environment, provides a new idea and method for the difficulties of insufficient durability and high operation and maintenance cost of the cross-sea railway hanging fence, conforms to the concept of sustainable development, and has high popularization and application value. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the elevation arrangement drawing of the present application; Fig. 2 It is the top plane structure schematic diagram of the present application; Fig. 3 It is the three-dimensional effect drawing of the present application. DETAILED DESCRIPTION

[0016] The features and other relevant features of the present application will be further described in detail below with reference to the accompanying drawings, so as to be understood by those skilled in the art: As shown in the drawings, each mark is respectively represented as: the pier center line 1, the support center line 2, the pier body 3, the tray 4, the top hat 5, the drain pipe 6, the short column 7, the support cushion stone 8, the concrete coaming Q1. Figs. 1-3 As shown in the drawings, each mark is respectively represented as: the pier center line 1, the support center line 2, the pier body 3, the tray 4, the top hat 5, the drain pipe 6, the short column 7, the support cushion stone 8, the concrete coaming Q1.

[0017] Embodiment: As shown in the drawings, the pier fence structure of the sea-crossing railway bridge in the embodiment includes the pier body 3, the tray 4 and the top hat 5, wherein the pier body 3 has the pier center line 1. The tray 4 is arranged above the pier body 3, and the top hat 5 is arranged above the tray 4. Figs. 1 to 3

[0018] In the embodiment, the concrete coaming Q1 is arranged above the top hat 5, and the vertical main reinforcement of the concrete coaming Q1 is the main reinforcement of the pier body 3, that is, when the pier body 3 is constructed, the main reinforcement is led upward to serve as the reserved vertical main reinforcement of the concrete coaming Q1. The formwork of the concrete coaming Q1 is based on the main reinforcement of the pier body 3, and the two are bound to form an integral structure. Then, the coaming formwork is installed, and finally, the coaming concrete is poured, so that the concrete coaming Q1 and the pier body 3 form an integral structure.

[0019] In the embodiment, the concrete coaming Q1 has coaming reinforcement, the position of which is staggered with the position of the reserved vertical main reinforcement of the pier body 3. The two are bound and fixed to form an integral structure and constitute the reinforcement of the concrete coaming Q1, further improving the structural performance of the concrete coaming Q1.

[0020] As shown in the drawings, each mark is respectively represented as: the pier center line 1, the support center line 2, the pier body 3, the tray 4, the top hat 5, the drain pipe 6, the short column 7, the support cushion stone 8, the concrete coaming Q1. Fig. 1 and Fig. 2 As shown in the drawings, each mark is respectively represented as: the pier center line 1, the support center line 2, the pier body 3, the tray 4, the top hat 5, the drain pipe 6, the short column 7, the support cushion stone 8, the concrete coaming Q1.

[0021] A plurality of drain pipes 6 are arranged on the top hat 5, and the plurality of drain pipes 6 are respectively located at the corner positions of the top hat 5 and in the region between the short column 7 and the concrete coaming Q1, so as to drain water.

[0022] Although the above embodiments have been described in detail with reference to the accompanying drawings for the purpose of illustrating the concepts and embodiments of the present application, those skilled in the art can recognize that various improvements and changes can be made to the present application without departing from the scope defined by the claims, and therefore, detailed description is not given here.​

Claims

1. A pier fence structure for a cross-sea railway bridge, comprising a pier body, a tray, and a top cap, wherein the tray is arranged above the pier body, and the top cap is arranged above the tray, characterized in that: It comprises a concrete panel, the vertical main reinforcement of the concrete panel is the main reinforcement of the pier body, the formwork of the concrete panel is based on the main reinforcement of the pier body, and the concrete panel and the pier body form an integral structure.

2. The cross-sea railway bridge pier fence structure according to claim 1, characterized in that: The concrete enclosure panel has enclosure panel reinforcement, and the enclosure panel reinforcement is tied and fixed to the main reinforcement of the pier body to form an integral structure and constitute the reinforcement of the concrete enclosure panel.

3. The cross-sea railway bridge pier fence structure according to claim 1, characterized in that: A short column is arranged on the top cap, a support pad stone is arranged on the short column, and a certain distance is left between the concrete slab and the short column.

4. The cross-sea railway bridge pier fence structure according to claim 3, characterized in that: The top cap is provided with a drain pipe, which is located at a corner position and in an area between the short column and the concrete enclosure plate.

Citation Information

Patent Citations

  • Novel high-speed rail bridge pier top coaming construction method

    CN118621692A

  • Adjustable railway bridge pier top hanging fence mounting device

    CN217839714U

  • Formwork supporting system for pier top coaming construction

    CN222435091U

  • Railway pier with less maintenance

    CN222809858U

  • Suspended safety guardrail mounting operation platform convenient to assemble

    WO2025102668A1