Large-span pedestrian suspension bridge capable of being disassembled and maintained

Abstract

The utility model relates to the technical field of suspension bridge structures, and particularly discloses a detachable and maintainable large-span pedestrian suspension bridge which comprises a main tower, a main cable, a suspension rod, an anchorage and a bridge floor. The bridge floor comprises longitudinal beams, cross beams and stand columns, the longitudinal beams comprise auxiliary longitudinal beams arranged above the cross beams and auxiliary longitudinal beams arranged below the cross beams, and the auxiliary longitudinal beams and the longitudinal beams are welded to the cross beams respectively; steel plates are laid on the longitudinal beams and detachably connected with the longitudinal beams, a connecting strip is arranged between every two adjacent steel plates, and the two ends of each connecting strip are detachably connected with the corresponding steel plate. A plurality of transverse pull ropes are detachably connected between the stand columns, the transverse pull ropes are distributed in the vertical direction, and vertical pull ropes are detachably connected between the transverse pull ropes. The utility model aims to solve the problem that the existing large-span suspension bridge deck structure is mainly fixed by welding and is inconvenient to disassemble and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of suspension bridge structures, in particular to a large-span pedestrian suspension bridge that can be disassembled and maintained. Background Art

[0002] Existing large-span pedestrian suspension bridges are often built on the river surface to facilitate local residents to cross the river. The main structure of the bridge is as follows: Figure 1 As shown. Usually, to ensure the stability of the bridge deck structure, all parts of the structure are connected by welding. Several cross beams of the bridge deck are welded together with the longitudinal beams of the bridge deck, and then steel plates are laid and welded on the longitudinal beams to complete the bridge deck structure of the bridge body; at the same time, the bridge deck guardrail adopts steel pipes and cross beams to weld to form columns, and then the steel bars and wire mesh are welded to the columns to form guardrails. Although this type of welding method can ensure the stability of the structural connection, the bridge deck is located on the river surface, affected by rain and river water vapor, and the bridge deck environment is usually relatively humid; and the steel bar diameter of the wire mesh is generally lower than the thickness of the columns, cross beams and longitudinal beams of the main structure of the bridge; the steel mesh of the guardrail is easily corroded and damaged due to long-term use; at the same time, the bridge deck steel plate is trampled by pedestrians for a long time, and it is also easy to be damaged after long-term use; and the existing welding connection method makes it difficult to replace the bridge deck and steel mesh, and it cannot be disassembled for maintenance, which is inconvenient to maintain. Utility Model Content

[0003] In view of the deficiencies in the prior art, the technical problem solved by the utility model is to provide a large-span pedestrian suspension bridge that can be disassembled and maintained, thereby solving the problem that the deck structure of the existing large-span suspension bridge is mainly fixed by welding and is not convenient for disassembly and maintenance.

[0004] In order to solve the above problems, the technical solution adopted by the utility model is: a large-span pedestrian suspension bridge that can be detachably maintained, including a main tower, a main cable, a hanger, an anchor and a bridge deck; the bridge deck includes longitudinal beams, transverse beams and columns, the longitudinal beams include auxiliary longitudinal beams respectively provided on the upper part of the transverse beam and on the lower part of the transverse beam, the auxiliary longitudinal beams and the longitudinal beams are respectively welded to the transverse beams; steel plates are laid on the longitudinal beams, the steel plates are detachably connected to the longitudinal beams, a connecting strip is provided between two adjacent steel plates, and the two ends of the connecting strip are respectively detachably connected to the steel plates; a plurality of transverse ropes are detachably connected between the columns, the plurality of transverse ropes are distributed vertically, and vertical ropes are detachably connected between the transverse ropes.

[0005] The beneficial effects of this solution are as follows: the main structure of the bridge is fixed by welding to ensure the stability of the connection, and the bridge deck steel plate and the longitudinal beam are detachably connected, so that it is convenient to replace a single steel plate in time when it is bent, rusted or there are other safety hazards. At the same time, the steel plate can also be disassembled for maintenance, such as painting an anti-rust layer, etc. Similarly, the detachably connected horizontal and vertical pull ropes are convenient for disassembly, replacement or maintenance; secondly, the steel plates are detachably fixed to each other by connecting strips, so that when the connection point between the steel plate and the longitudinal beam falls off, the steel plate can be relatively fixed by the steel plates and connecting strips on both sides of the steel plate, and it is not easy to fall off, thereby ensuring the stability of the bridge deck connection and the safety of pedestrians.

[0006] Furthermore, the steel plate is laid in the transverse direction, and the steel plate is detachably connected to at least two longitudinal beams, and at least two steel plates are on the same longitudinal beam. The steel plate is provided with connection points with multiple longitudinal beams, so that even if a single connection point is damaged, displacement will not occur, thereby ensuring the safety of the connection.

[0007] Furthermore, the column is made of seamless steel pipe, and channel steel is arranged on both sides of the seamless steel pipe, and the steel pipe, channel steel and cross beam are connected by welding. Channel steel is added at the bottom of the column to support both sides of the column and improve the stability of the connection between the column and the cross beam.

[0008] Furthermore, a mounting ring is welded on the column, and the transverse pull rope passes through the mounting ring and is detachably connected to the column. The mounting ring is connected with the relative punching method without destroying the overall sealing structure of the column, preventing external water vapor from entering, and ensuring the service life of the column.

[0009] Furthermore, the vertical pull rope is detachably connected to the horizontal pull rope through a lock buckle, and the vertical stretching presents an S-shaped arrangement along the vertical plane. A steel wire rope can be used to arrange the vertical pull rope in an S-shaped manner, which is convenient for connection and disassembly, and further improves the guardrail density.

[0010] Furthermore, the horizontal ropes are arranged in multiple numbers along the vertical direction, and the horizontal ropes are arranged in a sparse upper and dense lower manner, and the spacing between the horizontal ropes within the height of 0.8-1.2m is not greater than 20cm. The railings below increase the density to protect pedestrians with shorter heights.

[0011] Furthermore, the longitudinal beam is made of I-beam or channel steel, and the steel plate is detachably connected to the flange of the longitudinal beam.

[0012] Furthermore, the horizontal pull rope is detachably fixed with a wire mesh through a lock buckle. The detachable wire mesh is easy to replace, and the wire mesh is used to increase the density of the guardrail and improve safety.

[0013] Furthermore, the steel plate is provided with anti-skid patterns on its surface to increase walking friction and prevent pedestrians from slipping.

[0014] Furthermore, a rubber anti-skid net is laid on the steel plate to increase walking friction and effectively prevent pedestrians from slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a longitudinal schematic diagram of the main structure of the bridge.

[0016] Figure 2 This is a schematic diagram of the bridge deck's transverse view.

[0017] Figure 3 This is a top view of the bridge deck structure.

[0018] Figure 4 Schematic diagram of the bridge guardrail structure. DETAILED DESCRIPTION

[0019] The following is further described in detail through specific implementation methods:

[0020] The reference numerals in the drawings of the specification include: main tower 1, main cable 11, hanger 12, anchor 13, bridge deck 14, cross beam 2, longitudinal beam 3, secondary longitudinal beam 31, column 4, channel steel 41, transverse pull rope 42, vertical pull rope 43, lock buckle 44, mounting ring 45, steel plate 5, connecting strip 51, wire mesh 6.

[0021] Example 1 This is as attached Figure 1-4 As shown: a detachable and maintainable long-span pedestrian suspension bridge, comprising a main tower 1, a main cable 11, a suspender 12, an anchor 13 and a bridge deck 14; the bridge deck 14 comprises a longitudinal beam 3, a cross beam 2 and a column 4, the longitudinal beam 3 comprises a secondary longitudinal beam 313 respectively arranged above the cross beam 2 and below the cross beam 2, the secondary longitudinal beam 313 and the longitudinal beam 3 are respectively welded to the cross beam 2; a plurality of longitudinal beams 3 on the same longitudinal line are welded in sequence, a steel plate 5 is laid on the longitudinal beam 3, the steel plate 5 is provided with an anti-slip pattern on the surface and laid in the transverse direction, the steel plate 5 is bolted to at least three longitudinal beams 3, there are three steel plates 5 on the same longitudinal beam 3, a connecting strip 51 is arranged between two adjacent steel plates 5, and the two ends of the connecting strip 51 are respectively bolted to the steel plate 5. The column 4 is made of seamless steel pipe, and channel steel 41 is arranged on both sides of the seamless steel pipe in the longitudinal direction, and the steel pipe, channel steel 41 and the cross beam 2 are connected by welding.

[0022] There are multiple transverse pull ropes 42 connected between the columns 4. The multiple transverse pull ropes 42 are distributed vertically. Within a distance of 0-0.6m, the vertical spacing of the transverse pull ropes 42 is 10cm. Within a distance of 0.6-1.2m, the vertical spacing of the transverse pull ropes 42 is 15cm. A mounting ring 45 is welded on the column 4. The transverse pull rope 42 passes through the mounting ring 45 to connect with the column 4. The end of the pull rope is fixed by a lock buckle 44. The mounting ring 45 is connected to the relative punching method without destroying the overall sealing structure of the column 4, preventing external water vapor from entering, and ensuring the service life of the column 4. The transverse pull ropes 42 are connected to the vertical pull ropes 43 through the lock buckle 44. The vertical pull rope 43 is detachably connected to the transverse pull rope 42 through the lock buckle 44, and the vertical stretching is arranged in an S shape along the vertical plane. The transverse pull ropes 42 and the vertical pull ropes 43 are both steel wire ropes.

[0023] By detachably connecting the steel plates 5 of the bridge deck 14 to the longitudinal beams 3, it is convenient to replace a single steel plate 5 in time when it is bent, corroded or has other safety hazards. At the same time, the steel plate 5 can also be disassembled for maintenance, such as applying an anti-rust layer, etc. Similarly, the detachably connected transverse pull ropes 42 and vertical pull ropes 43 are convenient for disassembly, replacement or maintenance. The steel plates 5 are provided with connection points with multiple longitudinal beams 3, so that when a single connection point is damaged, no displacement will occur, ensuring the safety of the connection; secondly, the steel plates 5 are detachably fixed to each other by connecting strips 51, so that when the connection point between the steel plate 5 and the longitudinal beam 3 falls off, the steel plates 5 on both sides of the steel plate 5 and the connecting strips 51 make the position of the steel plate 5 relatively fixed and not easy to fall off, thereby ensuring the stability of the bridge deck 14 connection and the safety of pedestrians.

[0024] The similarities between Example 2 and Example 1 are not repeated here, except that a rubber anti-skid net is laid on the steel plate 5. The transverse pull rope 42 is detachably fixed with 6 pieces of steel wire nets through a lock buckle 44.

[0025] By laying rubber anti-skid nets, walking friction is increased, which can effectively prevent pedestrians from slipping. The 6 removable wire meshes are easy to replace, and the 6 wire meshes are used to increase the density of the guardrail and improve safety.

[0026] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A detachable and maintainable long-span pedestrian suspension bridge, comprising a main tower, a main cable, a suspender, an anchor and a bridge deck; the bridge deck comprises a longitudinal beam, a transverse beam and a column, characterized in that: The longitudinal beams include auxiliary longitudinal beams above the cross beams and below the cross beams, the auxiliary longitudinal beams and the longitudinal beams are welded to the cross beams respectively; steel plates are laid on the longitudinal beams, the steel plates are detachably connected to the longitudinal beams, connecting strips are provided between two adjacent steel plates, and both ends of the connecting strips are detachably connected to the steel plates respectively; a plurality of transverse pull ropes are detachably connected between the columns, the plurality of transverse pull ropes are distributed vertically, and vertical pull ropes are detachably connected between the transverse pull ropes.

2. A detachable and maintainable long-span pedestrian suspension bridge according to claim 1, characterized in that: The steel plate is laid in the transverse direction, and is detachably connected to at least two longitudinal beams, and there are at least two steel plates on the same longitudinal beam.

3. A detachable and maintainable long-span pedestrian suspension bridge according to claim 1, characterized in that: The columns are made of seamless steel pipes, channel steels are arranged on both sides of the seamless steel pipes, and the steel pipes, channel steels and cross beams are connected in pairs by welding.

4. A detachable and maintainable long-span pedestrian suspension bridge according to claim 3, characterized in that: A mounting ring is welded on the column, and the transverse pull rope passes through the mounting ring and is detachably connected to the column.

5. The detachable and maintainable long-span pedestrian suspension bridge according to claim 1 is characterized in that: The vertical pull rope is detachably connected to the horizontal pull rope through a lock buckle, and the vertical stretch is arranged in an S shape along the vertical plane.

6. The detachable and maintainable long-span pedestrian suspension bridge according to claim 1 is characterized in that: The transverse pull ropes are provided in plurality along the vertical direction, and the plurality of transverse pull ropes are arranged in a sparse upper and dense lower manner, and the spacing between the transverse pull ropes within a height of 0.8-1.2 m is not greater than 20 cm.

7. The detachable and maintainable long-span pedestrian suspension bridge according to claim 1 is characterized by: The longitudinal beam is made of I-beam or channel steel, and the steel plate is detachably connected to the flange of the longitudinal beam.

8. The detachable and maintainable long-span pedestrian suspension bridge according to claim 1 is characterized by: The transverse draw cord is detachably fixed to the wire mesh by a lock buckle.

9. The detachable and maintainable long-span pedestrian suspension bridge according to claim 1 is characterized by: The steel plate is provided with an anti-slip pattern on its surface.

10. The detachable and maintainable long-span pedestrian suspension bridge according to claim 1, characterized in that: A rubber anti-skid net is laid on the steel plate.

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