Railway platform canopy deformation joint anti-falling cover plate structure

Abstract

The utility model discloses a railway platform canopy deformation joint anti-falling cover plate structure, and relates to the technical field of railway platform canopies, the railway platform canopy deformation joint anti-falling cover plate structure comprises a canopy roof panel, the canopy roof panel is provided with a deformation joint, the canopy roof panel is provided with a section of structural beam at each of two sides of the deformation joint, and a cover plate is arranged on the top surface of each section of structural beam in a cast-in-place manner; one end of the cover plate is fixedly connected with the structural beam cast-in-place, and one end of the cover plate far away from the fixed joint of the cover plate and the structural beam cast-in-place spans the other structural beam; one end of the cover plate is fixedly connected with the structural beam in a cast-in-place mode, so that the cover plate and the structural beam form a whole, the stability of the cover plate is greatly enhanced, and the possibility that the cover plate falls off due to external force is effectively reduced; the cover plate covers the deformation joint, a foundation structure is provided for preventing rainwater from leaking into the deformation joint, and the initial waterproof effect is achieved.

Description

Technical Field

[0001] This application relates to the field of railway platform canopy technology, and in particular to a structure for an anti-detachment cover plate for the expansion joint of a railway platform canopy. Background Technology

[0002] In modern railway transportation infrastructure, railway platform canopies play a crucial role, providing passengers with a comfortable environment sheltered from the sun and rain while waiting for and boarding trains. However, the expansion joint area has always been a region with a high concentration of technical challenges, and the design of the related cover plates is crucial to the stability, waterproofing, and service life of the entire canopy structure.

[0003] Traditional railway platform canopy expansion joint covers often use a simple prefabricated panel splicing method.

[0004] Regarding the aforementioned technologies, the inventors believe that from the perspective of structural stability, precast panel splicing has poor stability due to the loose connection between the panels and the lack of integrity. When faced with natural disasters such as strong winds and earthquakes or frequent train vibrations, it is very easy for it to shift, loosen, or even fall off, posing a serious threat to the personal safety of passengers on the platform. Utility Model Content

[0005] The purpose of this application is to provide a structure for an anti-fall-off cover plate for the expansion joint of a railway platform canopy, so as to improve the problem that the traditional expansion joint cover plate of the railway platform canopy has poor stability and is prone to displacement, loosening or even falling off.

[0006] This application provides a structure for preventing the detachment of expansion joint covers in railway platform canopies, employing the following technical solution:

[0007] A structure for preventing the detachment of a cover plate from the expansion joint of a railway platform canopy includes a canopy roof panel with an expansion joint. A structural beam is provided on both sides of the expansion joint of the canopy roof panel. A cover plate is cast-in-place on the top surface of one of the structural beams. One end of the cover plate is fixedly connected to the structural beam in the cast-in-place, and the other end of the cover plate, away from the fixed connection between the cover plate and the structural beam, spans across another structural beam.

[0008] By adopting the above technical solution, and by setting one end of the cover plate to be fixedly connected to the structural beam in place, this connection method makes the cover plate and the structural beam form an integral whole, which greatly enhances the stability of the cover plate and effectively reduces the possibility of the cover plate falling off due to external forces. The cover plate covers the expansion joint, providing a basic structure to prevent rainwater from seeping into the expansion joint and playing a preliminary waterproofing role.

[0009] Optionally, a drip layer is provided at the end of the cover plate away from the fixed connection between the cover plate and the cast-in-place structural beam.

[0010] By adopting the above technical solution, the drip layer can guide rainwater to drip smoothly, preventing rainwater from flowing back along the edge of the cover plate into the expansion joint, thus further improving the waterproof performance; it also reduces the direct erosion of the other structural beam by rainwater, thereby reducing the service life of the structural beam.

[0011] Optionally, a drip line is provided on the bottom surface of the drip layer along its length.

[0012] By adopting the above technical solution, the drip line can guide rainwater to fall more accurately, allowing rainwater to drain along a predetermined path and preventing rainwater from flowing randomly at the bottom of the drip layer; at the same time, it further enhances the waterproof effect of the cover plate.

[0013] Optionally, the cover plate is provided with a number of stabilizing steel bars.

[0014] By adopting the above technical solution, the tensile and bending resistance of the cover plate can be enhanced by setting sturdy steel bars, thereby improving the overall strength of the cover plate and enabling it to withstand greater loads. This reduces the risk of cracking or damage to the cover plate caused by external forces. At the same time, it helps to disperse stress and prevent stress concentration from causing local damage to the cover plate, thereby improving the durability and service life of the cover plate.

[0015] Optionally, one end of the cover plate that is fixedly connected to the structural beam in place is constructed by binding the reinforcing bars pre-reserved in the structural beam with the stabilizing reinforcing bars in the cover plate before concrete pouring.

[0016] By adopting the above technical solution, the pre-reserved steel bars in the structural beam are tied to the stabilizing steel bars before concrete pouring, a firm connection is formed between the cover plate and the structural beam, enhancing their collaborative working ability and greatly improving the cover plate's anti-fall-off performance; making the cover plate and the structural beam a whole, jointly bearing the load and deformation, thus improving the stability and safety of the entire canopy structure.

[0017] Optionally, the upper surface of the cover plate is provided with a drainage slope with the center of the cover plate as the roof water distribution line, so that rainwater is discharged to both sides of the expansion joint.

[0018] By adopting the above technical solution, the setting of the drainage slope can enable rainwater to flow quickly to both sides of the expansion joint, avoid rainwater accumulation on the cover plate, reduce the erosion and damage to the cover plate caused by water accumulation, and extend the service life of the cover plate.

[0019] Optionally, the outer surface of the cover plate is provided with a protective layer that has anti-corrosion and anti-ultraviolet function.

[0020] By adopting the above technical solution, the protective layer can reduce the erosion of the cover plate by rainwater, chemicals, etc., extend the service life of the cover plate, and reduce the risk of structural damage and detachment caused by corrosion; at the same time, it can effectively resist the damage of ultraviolet rays to the cover plate, weaken the aging and cracking of the cover plate caused by ultraviolet radiation, and maintain the stable performance of the cover plate.

[0021] Optionally, a fiberglass mesh is embedded in the protective layer.

[0022] By adopting the above technical solution, the fiberglass mesh cloth has the characteristics of high strength and alkali resistance. The fiberglass mesh cloth embedded in the protective layer can enhance the tensile strength and crack resistance of the protective layer, prevent the protective layer from cracking, and improve the protective effect.

[0023] Optionally, the inner side of the cover plate is fully covered with a waterproof layer.

[0024] By adopting the above technical solution, a waterproof layer is set to prevent rainwater from seeping into the cover plate and dripping into the expansion joint, thereby enhancing the waterproofness of the cover plate.

[0025] Optionally, a waterstop strip is provided at the junction of the cover plate and the structural beam, and the surface of the waterstop strip is covered with a metal protective plate that is connected to the cover plate and the structural beam.

[0026] By adopting the above technical solutions, the waterstop strip can effectively prevent rainwater from seeping into the expansion joint from the junction of the cover plate and the structural beam, thus enhancing the waterproof performance; the metal protective plate can fix the waterstop strip while protecting it from external damage and ultraviolet radiation, thus extending the service life of the waterstop strip.

[0027] In summary, this application includes at least one of the following beneficial technical effects of the railway platform canopy expansion joint anti-detachment cover structure:

[0028] 1. By setting one end of the cover plate to be fixedly connected to the structural beam in place, this connection method makes the cover plate and the structural beam form an integral whole, which greatly enhances the stability of the cover plate and effectively reduces the possibility of the cover plate falling off due to external forces; the cover plate covers the expansion joint and provides a basic structure to prevent rainwater from seeping into the expansion joint, playing a preliminary waterproofing role.

[0029] 2. By setting up sturdy steel bars, the tensile and bending resistance of the cover plate can be enhanced, the overall strength of the cover plate can be improved, enabling it to withstand greater loads and reducing the risk of cracking or damage to the cover plate due to external forces; at the same time, it helps to disperse stress and prevent stress concentration from causing local damage to the cover plate, thereby improving the durability and service life of the cover plate.

[0030] 3. By setting a protective layer, the cover plate can be reduced from being corroded by rainwater, chemicals, etc., thus extending its service life and reducing the risk of structural damage and detachment caused by corrosion. At the same time, it can effectively resist the damage of ultraviolet rays to the cover plate, weaken the aging and cracking caused by ultraviolet radiation, and maintain the stable performance of the cover plate. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the anti-detachment cover plate for the expansion joint of the railway platform canopy;

[0032] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0033] Figure 3 This is a schematic diagram of the cross-section of the reinforcing steel bar in the embodiment.

[0034] In the diagram, 1. Canopy roof panel; 2. Expansion joint; 3. Structural beam; 4. Cover plate; 41. Drip layer; 411. Drip line; 5. Reinforcing steel bar; 6. Drainage slope; 7. Protective layer; 8. Fiberglass mesh; 9. Waterproof layer; 10. Waterstop strip; 11. Metal protective plate. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1 -Appendix Figure 3 This application will be described in further detail below.

[0036] A structure for preventing the expansion joint of a railway platform canopy from falling off, referring to... Figure 1 The canopy includes a roof panel 1, which has an expansion joint 2. A structural beam 3 is provided on both sides of the expansion joint 2. The structural beam 3 is a reinforced concrete structure. A cover plate 4 is cast in place on the top surface of the structural beam 3. The cover plate 4 is 100mm thick and 650mm wide. A drainage slope 6 is provided on the upper surface of the cover plate 4 with the center of the cover plate 4 as the roof water distribution line, so that rainwater is discharged to both sides of the expansion joint 2. The slope of the drainage slope 6 is 1%-2%.

[0037] Reference Figure 1 One end of the cover plate 4 is fixedly connected to the structural beam 3 by cast-in-place. The end of the cover plate 4 away from the fixed connection between the cover plate 4 and the structural beam 3 spans across another section of the structural beam 3. The end of the cover plate 4 away from the fixed connection between the cover plate 4 and the structural beam 3 is integrally turned down and provided with a drip layer 41. The drip layer 41 is not connected to the structural beam 3. The downward length of the drip layer 41 is 100mm. A drip line 411 is provided on the bottom surface of the drip layer 41 along its length direction. The drip line 411 is made of solid plastic strip and is fixed to the drip layer 41 by bolts.

[0038] Reference Figure 1 , Figure 2The outer surface of the cover plate 4 is provided with a protective layer 7 that has anti-corrosion and anti-ultraviolet functions. The protective layer 7 can be made of polyurethane waterproof coating. The specific operation is as follows: the outer surface of the cover plate 4 is first roughened, and then the protective coating with anti-corrosion and anti-ultraviolet functions is applied to form a coating layer with a thickness of at least 2mm as the protective layer 7; fiberglass mesh 8 is embedded in the protective layer 7. By cutting the fiberglass mesh 8 to an appropriate size, it can cover the area of ​​the cover plate 4 that needs to be protected; an overlapping method is adopted, and the overlap width is not less than 100mm to ensure the continuity of protection.

[0039] Reference Figure 1 , Figure 2 The inner side of the cover plate 4 is fully covered with a waterproof layer 9. The waterproof layer 9 is made of a high-polymer waterproof membrane with good weather resistance and high elongation. The edges of the waterproof layer 9 are sealed to the sides of the cover plate 4. A waterstop strip 10 is installed at the junction of the cover plate 4 and the structural beam 3. The waterstop strip 10 is a water-swellable rubber waterstop strip 10. The specific operation is to first clean the junction of the structural beam 3 and the cover plate 4 and apply a base treatment agent. The base treatment agent material is a polyurethane treatment agent. Then, the waterstop strip 10 is embedded. Finally, a high-elasticity weather-resistant sealant, such as a silicon copper weather-resistant sealant, is used for sealing. The sealant layer formed by the sealant has a thickness of not less than 10 mm and a width of not less than 20 mm.

[0040] Reference Figure 1 , Figure 2 The surface of the waterstop strip 10 is covered with a metal guard plate 11 that is connected to the cover plate 4 and the structural beam 3. The metal guard plate 11 is fixed to the cover plate 4 and the structural beam 3 by stainless steel screws with a screw spacing of no more than 300mm to prevent the sealant from being damaged by external force, ensure the sealing effect of the expansion joint 2, avoid the loosening of the connection between the cover plate 4 and the structure due to rainwater leakage, and improve the anti-fall-off performance.

[0041] Reference Figure 3 The cover plate 4 is provided with a stabilizing steel bar 5. The specifications, quantity and arrangement of the stabilizing steel bar 5 are designed according to the load-bearing requirements and crack resistance of the cover plate 4. In this embodiment, the stabilizing steel bar 5 is bent and set with the cover plate 4. The end of the cover plate 4 is fixedly connected to the structural beam 3 by casting in place. The steel bar reserved in the structural beam 3 is tied to the stabilizing steel bar 5 in the cover plate 4 before concrete is poured to ensure the stability of the connection.

[0042] The implementation principle of this application embodiment is as follows:

[0043] In practice, the pre-reserved steel bars in the structural beam 3 are tied to the stabilizing steel bars 5, and then concrete is poured to form the cover plate 4, so that the cover plate 4 and the structural beam 3 form a firm connection. The drip line 411 is bolted to the bottom of the drip layer 41. The outer surface of the cover plate 4 is provided with a protective layer 7 with anti-corrosion and anti-ultraviolet function. Fiberglass mesh cloth 8 is embedded in the protective layer 7. A waterstop strip 10 is set at the junction of the cover plate 4 and the structural beam 3. A metal guard plate 11 is bolted to the surface of the waterstop strip 10. This improves the stability of the cover plate 4 and reduces the possibility of the cover plate 4 loosening and falling off.

[0044] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A structure for preventing the expansion joint of a railway platform canopy from falling off, comprising a canopy roof panel (1), characterized in that: The canopy roof panel (1) is provided with an expansion joint (2). A structural beam (3) is provided on both sides of the expansion joint (2). A cover plate (4) is cast in place on the top surface of the structural beam (3). One end of the cover plate (4) is cast in place and fixedly connected to the structural beam (3). The end of the cover plate (4) away from the fixed connection between the cover plate (4) and the structural beam (3) spans across another structural beam (3).

2. The anti-fall-off cover plate structure for the expansion joint of a railway platform canopy according to claim 1, characterized in that: A drip layer (41) is provided at one end of the cover plate (4) away from the fixed connection between the cover plate (4) and the structural beam (3).

3. The anti-fall-off cover plate structure for the expansion joint of a railway platform canopy according to claim 2, characterized in that: The bottom surface of the dripping layer (41) is provided with a drip line (411) along its length.

4. The anti-fall-off cover plate structure for the expansion joint of a railway platform canopy according to claim 1, characterized in that: The cover plate (4) is provided with several stabilizing steel bars (5).

5. The anti-fall-off cover plate structure for the expansion joint of a railway platform canopy according to claim 4, characterized in that: The end of the cover plate (4) that is fixedly connected to the structural beam (3) in place is constructed by binding the steel bars reserved in the structural beam (3) with the stabilizing steel bars (5) in the cover plate (4) before concrete pouring.

6. The anti-fall-off cover plate structure for the expansion joint of a railway platform canopy according to claim 1, characterized in that: The upper surface of the cover plate (4) is provided with a drainage slope (6) with the center of the cover plate (4) as the roof water distribution line, so that rainwater is discharged to both sides of the deformation joint (2).

7. The anti-fall-off cover plate structure for the expansion joint of a railway platform canopy according to claim 1, characterized in that: The outer surface of the cover plate (4) is provided with a protective layer (7) that has anti-corrosion and anti-ultraviolet function.

8. The anti-fall-off cover plate structure for the expansion joint of a railway platform canopy according to claim 7, characterized in that: A glass fiber mesh (8) is embedded in the protective layer (7).

9. The anti-fall-off cover plate structure for the expansion joint of a railway platform canopy according to claim 1, characterized in that: The inner side of the cover plate (4) is fully covered with a waterproof layer (9).

10. The anti-fall-off cover plate structure for the expansion joint of a railway platform canopy according to claim 1, characterized in that: A waterstop strip (10) is provided at the junction of the cover plate (4) and the structural beam (3), and the surface of the waterstop strip (10) is covered with a metal guard plate (11) that is connected to the cover plate (4) and the structural beam (3).

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