Cantilever construction bridge support

Abstract

The application belongs to the technical field of bridge support, and discloses a cantilever construction bridge support, which comprises a bridge support body, a bridge deck is arranged on the upper surface of the bridge support body, a cantilever basket for hoisting the bridge deck is arranged on the bridge deck, the cantilever basket and the bridge deck are connected with each other through sliding rails, and a connecting support for reducing the shaking of the bridge deck is arranged between the bridge support body and the bridge deck. The application has the effect of reducing the collapse probability of the bridge.

Description

Technical Field

[0001] This utility model relates to the field of bridge support technology, and in particular to a bridge support for cantilever construction. Background Technology

[0002] With the development of the transportation industry, bridge construction projects are increasing. The scaffolding method is currently one of the main construction methods for bridges. When using the scaffolding method, multiple bridge scaffolds need to be erected at certain intervals along the longitudinal direction of the bridge. Then, the bridge deck is lifted onto the bridge scaffolds using a cantilever scaffold. At this point, the bridge deck is fixed to the surface of the bridge scaffolds.

[0003] After the cantilever scaffold fixes the bridge deck to the surface of the bridge support, the bridge deck and the bridge support are rigidly connected. During use, due to the excessive weight of the bridge itself, and the fact that the bridge is built on the sea (river), where wind is common, the bridge is prone to swaying in severe weather. Since the bridge deck and the bridge support are rigidly connected, the bridge is prone to collapse when it sways. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a cantilever bridge support system.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a cantilever construction bridge support, including a bridge support body, a bridge deck is installed on the upper surface of the bridge support body, a cantilever basket for hoisting the bridge deck is provided on the bridge deck, the cantilever basket and the bridge deck are connected to each other by a slide rail, and a connecting support for reducing the sway of the bridge deck is installed between the bridge support body and the bridge deck.

[0006] By adopting the above technical solution, during bridge construction, workers use a cantilever scaffold to lift the bridge deck above the main bridge support structure. At this point, the connecting supports are installed onto the bridge support structure. Subsequently, the bridge deck and the connecting supports are secured together. During this process, the connecting supports reduce the probability of the bridge swaying in severe weather, thereby reducing the probability of collapse.

[0007] Furthermore, the connecting support includes a first support plate fixedly installed on the upper surface of the bridge support body, a second support plate fixedly installed on the bottom surface of the bridge deck, and rubber shock absorbers installed at both ends on the upper surface of the first support plate and the bottom surface of the second support plate, respectively.

[0008] By adopting the above technical solution, when the bridge encounters severe weather, the bridge deck sways. At this time, the bridge deck causes the second support plate to sway. The rubber damping components then sway under the action of the second support plate, causing them to deform. This deformation of the rubber damping components reduces the probability of bridge swaying, thereby reducing the probability of collapse.

[0009] Furthermore, the rubber shock absorber includes a rubber outer ring with its two ends respectively mounted on the upper surface of the first support plate and the bottom surface of the second support plate, a rubber plate fixedly disposed within the rubber outer ring, and a steel plate fixedly disposed within the rubber outer ring. The rubber plate and the steel plate are fixed to each other, and the rubber outer ring, the rubber plate, and the steel plate are fixed to each other through a vulcanization composite process.

[0010] By adopting the above technical solution, the steel plate improves the strength of the rubber damper, thereby reducing the probability of damage and extending its service life. Furthermore, the rubber plate and steel plate are fixed together, and the rubber outer ring, rubber plate, and steel plate are further fixed together through a vulcanization composite process, further improving the strength of the rubber damper and extending its service life.

[0011] Furthermore, the upper surface of the first support plate is provided with a spherical groove, and the lower end of the rubber shock absorber is provided with a spherical surface, wherein the spherical groove and the spherical surface are matched with each other.

[0012] By adopting the above technical solution, when the rubber damper shakes under the action of the second support plate, the rubber damper will deform. During the deformation process, the spherical groove and the spherical surface match each other, which causes the spherical groove and the spherical surface to shake against each other, thereby reducing the probability of the rubber damper being damaged due to excessive deformation, and thus extending the service life of the rubber damper.

[0013] Furthermore, a spherical PTFE plate is installed inside the spherical groove, and the spherical surface of the PTFE plate matches the spherical surface of the rubber shock absorber.

[0014] By adopting the above technical solution, the spherical PTFE plate has the advantage of non-adhesion, thereby reducing the probability that the rubber shock absorber will melt and adhere to the spherical groove in overheated weather.

[0015] Furthermore, the upper surface of the bridge support body is provided with mounting grooves, and multiple mounting grooves are arranged in an array on the upper surface of the bridge support body.

[0016] By adopting the above technical solution, when the rubber shock absorber has been used for a long time, the connecting support needs to be replaced. The staff needs to fix the jack in the installation groove, which reduces the difficulty of the staff replacing the connecting support.

[0017] Furthermore, the first support plate and the second support plate are fixed to the bridge support body and the bridge deck by fixing bolts.

[0018] By adopting the above technical solution, the fixing bolts reduce the difficulty for workers to disassemble the first support plate and the second support plate from the bridge support body and the bridge deck.

[0019] In summary, this utility model has the following beneficial effects:

[0020] 1. In this application, during bridge construction, workers use a cantilever scaffold to lift the bridge deck above the main bridge support structure. At this point, workers install connecting supports onto the bridge support structure. Subsequently, workers secure the bridge deck and connecting supports together. During this process, the connecting supports reduce the probability of the bridge swaying in severe weather, thereby reducing the probability of collapse.

[0021] 2. In this application, when the bridge encounters severe weather, the bridge deck sways. At this time, the bridge deck causes the second support plate to sway. The rubber damping component then sways under the action of the second support plate, causing it to deform. This deformation reduces the probability of bridge swaying, thereby reducing the probability of collapse.

[0022] 3. In this application, the steel plate increases the strength of the rubber damper, thereby reducing the probability of damage and extending its service life. Furthermore, the rubber plate and steel plate are fixed together, and the rubber outer ring, rubber plate, and steel plate are further fixed together through a vulcanization composite process, further increasing the strength of the rubber damper and extending its service life. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the connecting support structure in an embodiment of this utility model;

[0025] Figure 3 This is a cross-sectional structural schematic diagram of the rubber shock absorber in the embodiment of this utility model;

[0026] Figure 4 This is a schematic cross-sectional view of the spherical PTFE plate in an embodiment of this utility model.

[0027] In the diagram: 1. Bridge support body; 11. Bridge deck; 2. Connecting support; 21. First support plate; 22. Second support plate; 23. Rubber damping component; 231. Rubber outer ring; 232. Rubber plate; 233. Steel plate; 3. Spherical groove; 31. Spherical surface; 4. Spherical PTFE plate; 5. Mounting groove; 6. Fixing bolt. Detailed Implementation

[0028] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0029] like Figure 1-4 As shown in the figure, this application discloses a cantilever bridge support, including a bridge support body 1, a bridge deck 11, a connecting support 2, and a spherical PTFE plate 4. The cross-section of the bridge support body 1 is U-shaped. The bridge deck 11 is installed on the upper surface of the bridge support body 1. A cantilever basket (not shown in the figure) for hoisting the bridge deck 11 is provided on the bridge deck 11. The cantilever basket and the bridge deck 11 are connected to each other by a slide rail.

[0030] During bridge construction, workers use a cantilever scaffold to hoist the bridge deck 11 above the main bridge support structure. Then, they install the connecting support 2 onto the bridge support structure 1. Subsequently, the workers secure the bridge deck 11 and the connecting support 2 together. During this process, the connecting support 2 reduces the probability of the bridge swaying in severe weather, thereby reducing the probability of collapse.

[0031] A connecting support 2 is installed between the bridge support body 1 and the bridge deck 11 to reduce the swaying of the bridge deck 11. The connecting support 2 includes a first support plate 21, a second support plate 22, and a rubber damping element 23. The first support plate 21 is a rectangular plate structure and is fixedly installed on the upper surface of the bridge support body 1. The second support plate 22 is a rectangular plate structure and is fixedly installed on the bottom surface of the bridge deck 11. The two ends of the rubber damping element 23 are respectively installed on the upper surface of the first support plate 21 and the bottom surface of the second support plate 22 to reduce the swaying of the bridge deck 11.

[0032] When the bridge encounters severe weather, the bridge deck 11 sways. At this time, the bridge deck 11 causes the second support plate 22 to sway. Under the action of the second support plate 22, the rubber damper 23 sways, which in turn causes the rubber damper 23 to deform. During the deformation of the rubber damper 23, the probability of the bridge swaying is reduced, thereby reducing the probability of collapse.

[0033] The rubber damping component 23 includes a rubber outer ring 231, a rubber plate 232, and a steel plate 233. The two ends of the rubber outer ring 231 are respectively installed on the upper surface of the first support plate 21 and the bottom surface of the second support plate 22. The rubber plate 232 is fixedly installed inside the rubber outer ring 231, and the steel plate 233 is fixedly installed inside the rubber outer ring 231. The rubber plate 232 and the steel plate 233 are fixed to each other, and the rubber outer ring 231, the rubber plate 232, and the steel plate 233 are fixed to each other through a vulcanization composite process.

[0034] The steel plate 233 increases the strength of the rubber damper 23, thereby reducing the probability of damage and extending its service life. Furthermore, the rubber plate 232 and the steel plate 233 are fixed together, and the rubber outer ring 231, rubber plate 232, and steel plate 233 are fixed together through a vulcanization composite process, further increasing the strength of the rubber damper 23 and extending its service life.

[0035] The upper surface of the first support plate 21 is provided with a spherical groove 3, and the lower end of the rubber shock absorber 23 is provided with a spherical surface 31. The spherical groove 3 and the spherical surface 31 are matched with each other.

[0036] By adopting the above technical solution, when the rubber damper 23 shakes under the action of the second support plate 22, the rubber damper 23 will deform. During the deformation process, since the spherical groove 3 and the spherical surface 31 match each other, the spherical groove 3 and the spherical surface 31 shake each other, thereby reducing the probability of the rubber damper 23 being damaged due to excessive deformation, and thus extending the service life of the rubber damper 23.

[0037] The spherical PTFE plate 4 is installed in the spherical groove 3, and the spherical surface 31 of the spherical PTFE plate 4 matches the spherical surface 31 of the rubber shock absorber 23.

[0038] The spherical PTFE plate 4 has the advantage of being non-adhesive, which reduces the probability that the rubber damping component 23 will melt and adhere to the spherical groove 3 in overheated weather.

[0039] To reduce the difficulty of the work for the staff, the upper surface of the bridge support body 1 is provided with mounting grooves 5, and multiple mounting grooves 5 are arranged in a parallel array on the upper surface of the bridge support body 1. When the rubber shock absorber 23 has been used for a long time, the connecting support 2 needs to be replaced. The staff needs to fix the jack in the mounting groove 5, thereby reducing the difficulty of the staff replacing the connecting support 2.

[0040] To reduce the difficulty of the work for the workers, the first support plate 21 and the second support plate 22 are fixed to the bridge support body 1 and the bridge deck 11 by fixing bolts 6. The fixing bolts 6 reduce the difficulty for the workers to disassemble the first support plate 21 and the second support plate 22 from the bridge support body 1 and the bridge deck 11.

[0041] The operating principle of a cantilever bridge support in this embodiment is as follows: During bridge construction, workers use a cantilever basket to hoist the bridge deck 11 above the main body of the bridge support. At this time, the workers install the connecting support 2 onto the main body 1 of the bridge support. Subsequently, the workers fix the bridge deck 11 and the connecting support 2 together. During this process, the connecting support 2 reduces the probability of the bridge swaying in severe weather, thereby reducing the probability of collapse.

[0042] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A cantilever bridge support system, comprising a bridge support body (1), characterized in that: The bridge support body (1) has a bridge deck (11) installed on its upper surface. A cantilever basket for hoisting the bridge deck (11) is provided on the bridge deck (11). The cantilever basket and the bridge deck (11) are connected to each other by a slide rail. A connecting support (2) for reducing the swaying of the bridge deck (11) is installed between the bridge support body (1) and the bridge deck (11).

2. The cantilever bridge support according to claim 1, characterized in that: The connecting support (2) includes a first support plate (21) fixedly installed on the upper surface of the bridge support body (1), a second support plate (22) fixedly installed on the bottom surface of the bridge deck (11), and rubber shock absorbers (23) with their two ends respectively installed on the upper surface of the first support plate (21) and the bottom surface of the second support plate (22).

3. A cantilever bridge support according to claim 2, characterized in that: The rubber shock absorber (23) includes a rubber outer ring (231) with its two ends respectively installed on the upper surface of the first support plate (21) and the bottom surface of the second support plate (22), a rubber plate (232) fixedly installed inside the rubber outer ring (231), and a steel plate (233) fixedly installed inside the rubber outer ring (231). The rubber plate (232) and the steel plate (233) are fixed to each other. The rubber outer ring (231), the rubber plate (232) and the steel plate (233) are fixed to each other by a vulcanization composite process.

4. A cantilever bridge support according to claim 2, characterized in that: The upper surface of the first support plate (21) is provided with a spherical groove (3), and the lower end of the rubber shock absorber (23) is provided with a spherical surface (31). The spherical groove (3) and the spherical surface (31) are matched with each other.

5. A cantilever bridge support according to claim 4, characterized in that: A spherical PTFE plate (4) is installed in the spherical groove (3), and the spherical surface (31) of the spherical PTFE plate (4) matches the spherical surface (31) of the rubber shock absorber (23).

6. A cantilever bridge support according to claim 1, characterized in that: The upper surface of the bridge support body (1) is provided with an installation groove (5), and the installation groove (5) is provided in multiple and arranged in an array on the upper surface of the bridge support body (1).

7. A cantilever bridge support according to claim 2, characterized in that: The first support plate (21) and the second support plate (22) are fixed to the bridge support body (1) and the bridge deck (11) by fixing bolts (6).

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