High-pier large-span continuous rigid frame bridge main pier for expressway

Abstract

The utility model relates to the technical field of rigid frame bridge main piers, and discloses an expressway high-pier large-span continuous rigid frame bridge main pier which comprises a bottom support, a main pier body and a rigid frame bridge plate, the surface of the bottom support is fixedly connected with the main pier body, the surface of the main pier body is fixedly connected with the rigid frame bridge plate, and the rigid frame bridge plate is fixedly connected with the bottom support. Mounting holes distributed in a rectangular array are symmetrically formed in the surface of the main pier body, a damping rod is inserted into each mounting hole and fixedly connected with the main pier body, and a first moving plate is fixedly connected to the end of each damping rod; and first springs are symmetrically and fixedly connected between the main pier body and the first moving plate, so that when a ship collides with the main pier, the impact force of the ship can be reduced, the ship and the main pier can be effectively protected to a certain degree, and then the service life of a bridge is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of main piers of rigid frame bridges, in particular to main piers of high-pier and large-span continuous rigid frame bridges on expressways. Background Art

[0002] With the progress of society, the total mileage of highways is getting longer and longer. Highways need to build bridges in places with rivers, valleys or in some other situations. In order to meet the needs of highway construction, highway bridges will use different bridge structures according to the different construction environments. Among them, prestressed concrete rigid frame bridges are currently the main bridge type for large-span bridges. The main load-bearing structure of rigid frame bridges is a rigid frame bridge, that is, the beam and the leg or pier body form a rigid connection;

[0003] Building bridges over some rivers is a common construction method for highway construction. It can directly cross the river surface without taking a detour, which greatly improves the efficiency of highway construction.

[0004] When building a bridge above a river, it is often necessary to cast the bottom of the main pier and fix it on the riverbed, and determine the height of the main pier according to the actual water level of the river, and finally erect and cast a rigid frame bridge slab on the surface of the main pier. In daily use, some passing ships may collide with the main pier due to improper driving, causing both to be damaged to varying degrees, reducing the service life of the bridge. Utility Model Content

[0005] The utility model provides a main pier of a high-pier and large-span continuous rigid frame bridge on a highway, which has the beneficial effect of reducing the impact force of the ship when the ship collides with the main pier, and can effectively protect the ship and the main pier to a certain extent, thereby improving the service life of the bridge, and solves the problem that in daily use, the hull of some passing ships may collide with the main pier due to improper driving, thereby causing both to be damaged to varying degrees and reducing the service life of the bridge.

[0006] The utility model provides the following technical solutions: the main pier of a high-pier and large-span continuous rigid frame bridge on a highway,

[0007] As an optional solution for the main pier of the highway high pier large span continuous rigid frame bridge of the utility model, wherein: the main pier of the highway high pier large span continuous rigid frame bridge comprises a bottom support, a main pier body and a rigid frame bridge plate, characterized in that: the surface of the bottom support is fixedly connected with the main pier body, and the surface of the main pier body is fixedly connected with the rigid frame bridge plate;

[0008] The surface of the main pier body is symmetrically provided with mounting holes distributed in a rectangular array, a damping rod is inserted into the interior of each mounting hole, the damping rod is fixedly connected to the main pier body, the end of the damping rod is fixedly connected to a first movable plate, a first spring is symmetrically fixedly connected between the main pier body and the first movable plate, a U-shaped frame is equidistantly fixedly connected to the surface of the first movable plate, the inner wall surface of each U-shaped frame is symmetrically rotatably connected to a rotating shaft, and an anti-collision roller is fixedly connected between the two rotating shafts.

[0009] As an optional solution for the main pier of the high-pier and large-span continuous rigid frame bridge on the highway described in the utility model, the surface of the first movable plate is symmetrically fixedly connected with a connecting block, the surface of the connecting block is fixedly connected with a mounting plate, and the surface of the mounting plate is fixedly connected with a buffer airbag.

[0010] As an optional solution for the main pier of the high-pier and large-span continuous rigid frame bridge on the highway described in the utility model, an inflatable airbag is fixedly connected between the first movable plate and the main pier body, and an air supply hose is symmetrically fixedly connected to the surface of the inflatable airbag, the air supply hose passes through the mounting plate and is connected to the buffer airbag, and the air supply hose and the buffer airbag are fixedly connected.

[0011] As an optional solution for the main pier of the highway high-pier large-span continuous rigid frame bridge of the utility model, wherein: a plurality of elastic protrusions are equidistantly fixedly connected to the surface of the buffer airbag.

[0012] As an optional solution for the main pier of the high-pier and large-span continuous rigid frame bridge on the highway described in the utility model, warning plates are symmetrically fixedly connected to the surface of the main pier body, and reflective strips are posted on the surface of each warning plate.

[0013] The utility model has the following beneficial effects:

[0014] 1. The main pier of the high-pier and large-span continuous rigid frame bridge of the expressway is provided with a damping rod, a first movable plate, a first spring, a U-shaped frame and an anti-collision roller. When a ship collides with the main pier body due to improper driving, the ship hull first collides with the anti-collision roller. The anti-collision roller rotates in the U-shaped frame, so that the direction of the ship during the collision can be guided. At the same time, the anti-collision roller can buffer the impact force of the ship to a certain extent. In this process, the anti-collision roller transmits the impact force to the first movable plate through the U-shaped frame, and then the first movable plate moves. The movement of the first movable plate can then squeeze the damping rod and the first spring. The coordinated action of the damping rod and the first spring can reduce the impact force of the ship, and can prevent the ship from directly colliding with the main pier body, thereby improving the service life of the main pier body and further improving the service life of the rigid frame bridge.

[0015] 2. The main pier of the high-pier and large-span continuous rigid frame bridge of the highway is equipped with a buffer airbag, a filling airbag and a gas hose. When the impact force of a ship is large, the first movable plate moves and then compresses the filling airbag, so that the gas in the filling airbag can enter the buffer airbag through the gas hose, so that the buffer airbag is filled. Then, when the impact is large, the impact force of the ship can be buffered by the collision of the buffer airbag and the auxiliary damping rod, and the buffering effect is better.

[0016] 3. The main pier of the high-pier and large-span continuous rigid frame bridge of the expressway can serve as a reminder to passing ships at night by setting warning boards and reflective strips, reducing the probability of ships colliding with the main pier and increasing the service life of the bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the connection structure between the main pier and the rigid frame bridge plate of the utility model.

[0018] Figure 2 The structure diagram of the main pier of the utility model is shown in FIG. Figure 1 .

[0019] Figure 3 The structure diagram of the main pier of the utility model is shown in FIG. Figure 2 .

[0020] Figure 4 This is a diagram of the connection structure between the filling airbag and the first movable plate in the utility model.

[0021] Figure 5 This is a connection structure diagram of the mounting plate and the buffer airbag in the utility model.

[0022] Figure 6 It is a connection structure diagram of the U-shaped frame and the anti-collision roller in the utility model.

[0023] Figure 7 It is a structural diagram of the main pier body in the utility model.

[0024] In the figure: 1. bottom support; 2. main pier body; 3. rigid frame bridge plate; 4. damping rod; 5. first spring; 6. first movable plate; 7. U-shaped frame; 8. rotating shaft; 9. anti-collision roller; 10. connecting block; 11. mounting plate; 12. cushioning airbag; 13. elastic protrusion; 14. filling airbag; 15. gas hose; 16. warning plate; 17. reflective strip; 18. mounting hole. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example 1

[0027] See also Figure 1-7 The main pier of a high-pier and large-span continuous rigid-frame bridge of a highway comprises a bottom support, a main pier body and a rigid-frame bridge plate, wherein the surface of the bottom support is fixedly connected with the main pier body, and the surface of the main pier body is fixedly connected with the rigid-frame bridge plate;

[0028] The surface of the main pier body is symmetrically provided with mounting holes distributed in a rectangular array, a damping rod is inserted into each mounting hole, the damping rod is fixedly connected to the main pier body, the end of the damping rod is fixedly connected to a first movable plate, a first spring is symmetrically fixedly connected between the main pier body and the first movable plate, a U-shaped frame is equidistantly fixedly connected to the surface of the first movable plate, the inner wall surface of each U-shaped frame is symmetrically rotatably connected to a rotating shaft, and an anti-collision roller is fixedly connected between the two rotating shafts.

[0029] Warning plates are symmetrically fixedly connected to the surface of the main pier body, and reflective strips are posted on the surface of each warning plate.

[0030] When the main pier of the rigid frame bridge is used, the bottom of the main pier is first cast and fixed on the river bottom, and the height of the main pier is determined according to the actual river water level. Finally, the cast rigid frame bridge plate is erected on the surface of the main pier, and then the first movable plate is fixed on the surface of the main pier body, and the first movable plate is placed above the river surface, and the bottom surface of the first movable plate is in contact with the river surface. In daily use, when a ship collides with the main pier body due to improper driving, the ship hull first collides with the anti-collision roller, and the anti-collision roller rotates in the U-shaped frame, so that the direction of the ship during the collision can be guided, and the anti-collision roller can buffer the impact force of the ship to a certain extent. In this process, the anti-collision roller transmits the impact force to the first movable plate through the U-shaped frame, and then the first movable plate moves. The movement of the first movable plate can then squeeze the damping rod and the first spring. The cooperation of the damping rod and the first spring can reduce the impact force of the ship, and can avoid the ship from directly colliding with the main pier body, thereby improving the service life of the main pier body and thus improving the service life of the rigid frame bridge.

[0031] By setting up warning boards and reflective strips, passing ships can be reminded at night, reducing the probability of ships colliding with the main pier and increasing the service life of the bridge.

[0032] Example 2

[0033] This embodiment is an improvement made to the first embodiment. Figure 1-7 The surface of the first movable plate is symmetrically fixedly connected with a connecting block, the surface of the connecting block is fixedly connected with a mounting plate, and the surface of the mounting plate is fixedly connected with a buffer airbag.

[0034] An inflatable airbag is fixedly connected between the first movable plate and the main pier body, and an air delivery hose is symmetrically fixedly connected to the surface of the inflatable airbag. The air delivery hose passes through the mounting plate and is connected to the buffer airbag, and the air delivery hose and the buffer airbag are fixedly connected.

[0035] A plurality of elastic protrusions are fixedly connected with each other at equal intervals on the surface of the buffer airbag.

[0036] When the impact force of the ship is large, the first movable plate moves and then compresses the filled airbag, so that the gas in the filled airbag can enter the buffer airbag through the air supply hose, so that the buffer airbag is filled. Then, when the impact is large, the impact force of the ship can be buffered by the buffer airbag collision auxiliary damping rod, and the buffering effect is better. When the ship leaves the anti-collision drum, the first movable plate returns to its initial state under the elastic force of the first spring. During this process, the gas in the buffer airbag flows back to the filled airbag through the air supply hose to facilitate subsequent buffering.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A main pier of a high-pier, large-span continuous rigid-frame bridge on a highway, comprising a bottom support (1), a main pier body (2) and a rigid-frame bridge plate (3), characterized in that: The surface of the bottom support (1) is fixedly connected to a main pier body (2), and the surface of the main pier body (2) is fixedly connected to a rigid frame bridge plate (3); The surface of the main pier body (2) is symmetrically provided with mounting holes (18) distributed in a rectangular array, a damping rod (4) is inserted into the interior of each mounting hole (18), the damping rod (4) is fixedly connected to the main pier body (2), the end of the damping rod (4) is fixedly connected to a first movable plate (6), a first spring (5) is symmetrically fixedly connected between the main pier body (2) and the first movable plate (6), a U-shaped frame (7) is equidistantly fixedly connected to the surface of the first movable plate (6), the inner wall surface of each U-shaped frame (7) is symmetrically rotatably connected to a rotating shaft (8), and an anti-collision roller (9) is fixedly connected between the two rotating shafts (8).

2. The main pier of the highway high pier and large span continuous rigid frame bridge according to claim 1 is characterized by: A connection block (10) is symmetrically and fixedly connected to the surface of the first movable plate (6), a mounting plate (11) is fixedly connected to the surface of the connection block (10), and a buffer airbag (12) is fixedly connected to the surface of the mounting plate (11).

3. The main pier of the highway high pier and large span continuous rigid frame bridge according to claim 2 is characterized by: An inflatable airbag (14) is fixedly connected between the first movable plate (6) and the main pier body (2), and an air delivery hose (15) is symmetrically fixedly connected to the surface of the inflatable airbag (14). The air delivery hose (15) passes through the mounting plate (11) and is connected to the cushioning airbag (12), and the air delivery hose (15) and the cushioning airbag (12) are fixedly connected.

4. The main pier of the highway high pier and large span continuous rigid frame bridge according to claim 3 is characterized by: A plurality of elastic protrusions (13) are fixedly connected at equal intervals to the surface of the buffer airbag (12).

5. The main pier of the highway high pier and large span continuous rigid frame bridge according to claim 1 is characterized by: Warning plates (16) are symmetrically fixedly connected to the surface of the main pier body (2), and a reflective strip (17) is posted on the surface of each warning plate (16).

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