Corrosion-resistant steel structure bridge steel

Abstract

This utility model relates to the field of bridge steel technology, specifically to anti-corrosion steel structure bridge steel, including symmetrically arranged bridge decks, with crossbeams symmetrically arranged between the two bridge decks. Drip grooves are symmetrically opened on the bridge decks to effectively guide rainwater away from the bridge deck surface, reducing the risk of corrosion. Several piers are arranged below the bridge decks. The bridge deck surface is coated to protect the bridge deck from corrosion damage. Anti-corrosion skirts are installed on the outer bottom of both ends of the piers to block ground water flow and soil erosion, forming a stable whole with the piers to jointly bear the load and external erosion. The arc-shaped outer wall guides water flow smoothly around the piers, reducing impact and accumulation, and lowering the risk of corrosion and wear. Deflector plates are fixedly installed on the outer walls of both ends of the piers, located above the anti-corrosion skirts. The downward-sloping design of the outer wall of the deflector plates effectively guides rainwater, soil, and other impurities to the outside, preventing them from entering the gap between the anti-corrosion skirts and the piers, thus reducing the risk of corrosion.

Description

Technical Field

[0001] This utility model relates to the field of bridge steel technology, and in particular to anti-corrosion steel structure bridge steel. Background Technology

[0002] Steel bridge structures are characterized by large span capacity, high strength, fast construction speed, and short construction period, making them widely used in the construction of large bridges. In recent years, with the acceleration of national infrastructure construction, large steel structure bridges have emerged continuously, becoming the mainstream of bridge construction.

[0003] Chinese Patent CN212582400U discloses a windproof and corrosion-resistant steel bridge structure for coastal areas. This structure improves the stability of the main support rods through their inclined shape and thicker base, while the inclined shape enhances resistance to crosswinds. The wave-shaped bridge deck, the downward-sloping arc-shaped structure, and the rounded rectangular piers further enhance wind resistance. However, under long-term exposure to corrosive environments, the steel bridge structure suffers from surface corrosion, water seepage at joints, and decreased structural strength. Therefore, this patent provides a corrosion-resistant steel bridge structure. Utility Model Content

[0004] The main purpose of this utility model is to provide anti-corrosion steel for bridge structures, so as to solve the problems mentioned in related technologies, such as surface corrosion, water seepage at joints, and reduced structural strength when bridge steel structures are exposed to a corrosive environment for a long time.

[0005] To achieve the above objectives, according to one aspect of this utility model, a corrosion-resistant steel structure bridge is provided, comprising bridge decks symmetrically arranged vertically, crossbeams symmetrically arranged between two bridge decks, and several piers arranged below the bridge decks. The surface of the bridge decks is coated with a corrosion-resistant coating. Corrosion-resistant skirts are provided on the outer bottom of both ends of the piers to block ground water flow and soil erosion. Deflector plates are fixedly installed on the outer walls of both ends of the piers, with the deflector plates located above the corrosion-resistant skirts. The deflector plates are used to prevent moisture and corrosive substances from seeping into the gap between the corrosion-resistant skirts and the piers.

[0006] Furthermore, the bridge deck is symmetrically provided with drip grooves, which are inclined from the middle of the bridge deck to both sides, and a filter screen is also fixedly installed on the drip groove.

[0007] Furthermore, a self-healing anti-corrosion layer is fixedly provided on the surface of the bridge deck, and a cavity is formed in the self-healing anti-corrosion layer, which is filled with a repair agent.

[0008] Furthermore, the surface of the self-healing anti-corrosion layer is coated with an anti-corrosion coating, which is a metal coating, and the outer wall of the bridge pier is also coated with an anti-corrosion coating.

[0009] Furthermore, the top of the bridge pier is symmetrically provided with grooves, and several connecting piers are symmetrically fixedly provided at the bottom of the bridge deck. The connecting piers are inserted into the grooves, and a sealing layer is fixedly provided at the top of the bridge pier. The sealing layer is tightly attached to the bottom surface of the bridge deck.

[0010] Furthermore, the anti-corrosion skirt panel has slots inside, and several support plates are also fixedly installed inside the anti-corrosion skirt panel, and the outer wall of the anti-corrosion skirt panel is an arc shape that slopes downward.

[0011] Furthermore, the two ends of the bottom of the bridge pier are respectively inserted into the slots, and one side of the support plate is fixedly connected to the inner wall of the anti-corrosion skirt, the other side of the support plate is fixedly connected to the outside of the bridge pier, and the outer wall of the guide plate is designed to slope downward.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The anti-corrosion steel structure bridge is equipped with drip grooves to effectively guide rainwater away from the bridge deck surface quickly, reduce water retention time, and reduce the risk of corrosion. The rectangular upper section can accommodate more water flow, while the triangular lower section accelerates water discharge and reduces retention. In addition, a self-healing anti-corrosion layer is set to protect the bridge deck from corrosion damage for a long time.

[0014] 2. In this anti-corrosion steel structure bridge, anti-corrosion skirts are installed to form a stable whole with the piers, jointly bearing the load and external erosion. The arc-shaped outer wall guides water flow smoothly around, reducing impact and accumulation, and lowering the risk of corrosion and wear. The downward-sloping design of the outer wall of the guide plate effectively guides rainwater, mud and other impurities to the outside, avoiding them from entering the gap between the anti-corrosion skirt and the pier, thus reducing the risk of corrosion. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall steel structure of the anti-corrosion steel bridge in a preferred embodiment of the present invention;

[0016] Figure 2 This is a preferred embodiment of the present invention. Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0017] Figure 3 This is a schematic diagram of a partial structure of the bridge deck in a preferred embodiment of the present invention;

[0018] Figure 4 This is a preferred embodiment of the present invention. Figure 3 Enlarged schematic diagram of the structure at point B;

[0019] Figure 5 This is a side view of the anti-corrosion steel structure bridge in a preferred embodiment of the present invention;

[0020] Figure 6 This is a cross-sectional view of the pier connection structure in a preferred embodiment of the present invention;

[0021] Figure 7 This is a schematic diagram of the overall structure of the anti-corrosion skirt panel in a preferred embodiment of the present invention.

[0022] Illustration:

[0023] 1. Bridge deck; 11. Drip groove; 12. Filter screen; 13. Self-healing anti-corrosion layer; 131. Cavity; 14. Anti-corrosion coating; 15. Connecting pier;

[0024] 2. Crossbeam; 3. Pier; 31. Groove; 32. Sealing layer;

[0025] 4. Anti-corrosion skirt; 41. Slot; 42. Support plate; 5. Deflector plate. Detailed Implementation

[0026] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0027] Please see Figures 1-7 As shown, the purpose of this embodiment is to provide a corrosion-resistant steel structure bridge, including bridge decks 1 arranged symmetrically on the upper and lower sides, crossbeams 2 symmetrically arranged between two bridge decks 1, and several piers 3 arranged below the bridge decks 1. The surface of the bridge decks 1 is coated with a coating for corrosion protection. Corrosion-resistant skirts 4 are provided on the outer bottom of both ends of the piers 3 to block ground water flow and soil erosion. Deflector plates 5 are fixedly installed on the outer walls of both ends of the piers 3. The deflector plates 5 are located above the corrosion-resistant skirts 4 and are used to prevent moisture and corrosive substances from penetrating into the gap between the corrosion-resistant skirts 4 and the piers 3.

[0028] The bridge deck 1 is symmetrically provided with drip grooves 11. The drip grooves 11 are inclined from the middle of the bridge deck 1 to both sides, which can effectively guide rainwater to leave the surface of the bridge deck 1 quickly, reduce the residence time of water on the surface of the bridge deck 1, thereby reducing the risk of corrosion and avoiding affecting the performance. The drip grooves 11 are composed of a rectangular cross-section at the top and a triangular cross-section at the bottom. This shape helps to concentrate the water flow and can guide the water away from the surface of the bridge deck 1 with minimal resistance. Specifically, the rectangular upper cross-section can accommodate more water flow, while the triangular lower cross-section can accelerate the discharge of water flow and reduce the residence time of water flow in the drip grooves 11. A filter screen 12 is also fixedly installed on the drip grooves 11. The filter screen 12 can effectively intercept debris such as leaves and paper scraps, preventing them from entering the drip grooves 11 and causing blockage. At the same time, the material and mesh size of the filter screen 12 have been carefully selected to ensure that it can effectively intercept debris without causing excessive obstruction to the water flow.

[0029] A self-healing anti-corrosion layer 13 is fixedly installed on the surface of the bridge deck 1. A cavity 131 is formed in the self-healing anti-corrosion layer 13 and filled with a repair agent. When the surface of the self-healing anti-corrosion layer 13 is damaged, such as by scratches, impacts, or wear, the cavity 131 will be exposed and release the repair agent inside. After the repair agent comes into contact with the external environment (such as moisture, air, or light), it reacts rapidly to form a hard solid substance, which fills the damaged area, thereby achieving self-repair and extending the service life of the structure. Moreover, the repair agent has good corrosion resistance and can protect the bridge deck 1 from corrosion damage for a long time.

[0030] The surface of the self-healing anti-corrosion layer 13 is coated with an anti-corrosion coating 14, which is a metal coating, such as zinc, aluminum or their alloys. Metal coatings such as zinc and aluminum can undergo anodizing reaction in a corrosive environment, thereby protecting the substrate from corrosion. This electrochemical protection mechanism allows the coating to still protect the substrate from further corrosion to a certain extent when it is damaged. The outer wall of the bridge pier 3 is also coated with an anti-corrosion coating 14.

[0031] The top of the pier 3 is symmetrically provided with grooves 31, and several connecting piers 15 are symmetrically fixed at the bottom of the bridge deck 1. The connecting piers 15 are inserted into the grooves 31. The top of the pier 3 is fixedly provided with a sealing layer 32. The sealing layer 32 is tightly attached to the bottom surface of the bridge deck 1. The sealing layer 32 has a certain elasticity and can be tightly attached between the sealing layer 32 and the bridge deck 1, forming an effective waterproof barrier. This tight fit not only prevents moisture and corrosive substances from seeping in from the connection, but also reduces the damage to the connecting piers 15 caused by weathering and erosion, thereby extending the service life of the structure.

[0032] The anti-corrosion skirt 4 is typically made of high-performance anti-corrosion materials, such as stainless steel, aluminum alloy, fiberglass, or special anti-corrosion coatings. It has excellent corrosion resistance, weather resistance, and mechanical strength, and can maintain stable performance in various harsh environments. The anti-corrosion skirt 4 has slots 41 inside, and several support plates 42 are also fixedly installed inside the anti-corrosion skirt 4. The outer wall of the anti-corrosion skirt 4 is sloping downward in an arc shape, which helps to guide the surface water flow smoothly around the anti-corrosion skirt 4 and reduce the direct impact of the water flow on the anti-corrosion skirt 4. At the same time, the arc design can also effectively prevent the accumulation of soil and debris around the anti-corrosion skirt 4, reducing the risk of corrosion and wear of the bridge pier 3. In addition, the arc appearance also has a certain aesthetic effect and can enhance the overall aesthetics of the bridge.

[0033] The bottom ends of the pier 3 are respectively inserted into the slots 41, and one side of the support plate 42 is fixedly connected to the inner wall of the anti-corrosion skirt 4, while the other side of the support plate 42 is fixedly connected to the outside of the pier 3. This makes the anti-corrosion skirt 4 and the pier 3 form a stable whole, which can jointly bear the load from the ground and the erosion of the external environment. The outer wall of the guide plate 5 is designed to slope downwards to effectively guide rainwater, soil and other impurities to the outside, preventing them from entering the gap between the anti-corrosion skirt 4 and the pier 3, thus reducing the risk of corrosion at the connection.

[0034] In practical use, the connecting pier 15 at the bottom of the bridge deck 1 is aligned with the groove 31 at the top of the bridge pier 3 and inserted. A sealing layer 32 is installed between the bottom surface of the bridge deck 1 and the top of the bridge pier 3 to ensure a tight fit between them, forming a waterproof barrier. The bottom ends of the bridge pier 3 are inserted into the slots 41 of the anti-corrosion skirt 4. One side of the support plate 42 is fixed to the inner wall of the anti-corrosion skirt 4, and the other side is fixed to the outside of the bridge pier 3. A self-healing anti-corrosion layer 13 is first set on the surface of the bridge deck 1, and the cavity 131 is filled with a repair agent. Then, an anti-corrosion coating 14 is applied to the surface of the self-healing anti-corrosion layer 13, and an anti-corrosion coating 14 is also applied to the outer wall of the bridge pier 3. During use, rainwater is guided away from the surface of the bridge deck 1 through the drip groove 11. When the surface of the self-healing anti-corrosion layer 13 is damaged, the cavity 131 will be exposed, releasing the internal repair agent to form a hard solid substance that fills the damaged area, thereby achieving self-repair.

[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A corrosion-resistant steel structure bridge, comprising bridge decks (1) arranged symmetrically at the top and bottom, crossbeams (2) symmetrically arranged between two bridge decks (1), and a plurality of bridge piers (3) arranged below the bridge decks (1), characterized in that, The bridge deck (1) is coated with a coating for corrosion protection. Both ends of the bridge pier (3) are provided with anti-corrosion skirts (4) to block ground water flow and soil erosion. Both ends of the bridge pier (3) are fixedly provided with guide plates (5). The guide plates (5) are located above the anti-corrosion skirts (4). The guide plates (5) are used to prevent water and corrosive substances from seeping into the gap between the anti-corrosion skirts (4) and the bridge pier (3).

2. The anti-corrosion steel structure bridge steel according to claim 1, characterized in that, The bridge deck (1) is symmetrically provided with drip grooves (11), which are inclined from the middle of the bridge deck (1) to both sides. A filter screen (12) is also fixedly provided on the drip groove (11).

3. The anti-corrosion steel structure bridge steel according to claim 1, characterized in that, The bridge deck (1) is fixedly provided with a self-healing anti-corrosion layer (13), and a cavity (131) is opened in the self-healing anti-corrosion layer (13), and the cavity (131) is filled with a repair agent.

4. The anti-corrosion steel structure bridge steel according to claim 3, characterized in that, The self-healing anti-corrosion layer (13) is coated with an anti-corrosion coating (14), which is a metal coating, and the outer wall of the pier (3) is also coated with an anti-corrosion coating (14).

5. The anti-corrosion steel structure bridge steel according to claim 1, characterized in that, The bridge pier (3) has a groove (31) symmetrically opened on the top. Several connecting piers (15) are symmetrically fixed on the bottom of the bridge deck (1). The connecting piers (15) are inserted into the groove (31). A sealing layer (32) is fixedly installed on the top of the bridge pier (3). The sealing layer (32) is tightly attached to the bottom surface of the bridge deck (1).

6. The anti-corrosion steel structure bridge steel according to claim 1, characterized in that, The anti-corrosion skirt (4) has a slot (41) inside, and several support plates (42) are fixedly installed inside the anti-corrosion skirt (4), and the outer wall of the anti-corrosion skirt (4) is an arc shape that slopes downward.

7. The anti-corrosion steel structure bridge steel according to claim 6, characterized in that, The bottom ends of the pier (3) are respectively inserted into the slot (41), and one side of the support plate (42) is fixedly connected to the inner wall of the anti-corrosion skirt (4), and the other side of the support plate (42) is fixedly connected to the outside of the pier (3), and the outer wall of the guide plate (5) is designed to be inclined downward.

Images