Pier column

Abstract

The utility model provides a bridge pier column which comprises a column body, arc-shaped columns are oppositely arranged on the two sides of the column body, the arc-shaped columns are connected with the column body through a connecting rod arranged on a horizontal frame, and the bridge deck bearing ends of the column body and the arc-shaped columns are located at the same horizontal extension line. A buffer connecting support is mounted at the bridge floor bearing end of the arc-shaped column; the additionally-arranged arc-shaped columns are matched with the buffer connecting supports arranged on the arc-shaped columns to provide pressure reserve for the bridge piers, the anti-torsion moment is increased, and therefore the influence of deformation generated by a bridge floor on the bridge piers and the supports at the connecting positions is reduced; the bridge surface is raised by the structure, so that the pouring consumables of the bridge pier can be reduced; in addition, the connecting mode can ensure that the bridge pier effectively bears the bridge, and the bridge pier is prevented from disengaging from the bridge floor.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a bridge pier column. Background Art

[0002] A pier, also known as a pier column, is a load-bearing structure used to support the upper structure in civil engineering. Piers are crucial components of highway bridges, railway bridges, pedestrian bridges, overpasses, ramps, and flyovers. Their cross-sectional shapes vary widely, with circular shapes being the most common, but also include elliptical, square, curved, and parabolic shapes.

[0003] Bridge piers are the main load-bearing components of bridges. There are also some prefabricated bridge piers at present. The structure of prefabricated bridge piers mainly includes prefabricated piers and on-site cast-in-place pedestals. The prefabricated piers are connected to the pedestals by hoisting. However, the connection between the prefabricated piers and the pedestals is not strong enough, and it is easy to break over time, affecting the quality of the bridge.

[0004] For example, the existing patent CN2191373978U discloses a bridge pier column, which adopts the following technical solution: a bridge pier column, including a prefabricated pier column and a pedestal, the prefabricated pier column is provided with a main steel bar, and a plurality of connecting steel bars are embedded in the pedestal, the bottom end of the main steel bar extends out of the prefabricated pier column, and the top end of the connecting steel bar extends out of the pedestal, a supporting platform cast integrally with the pedestal is provided on the outside of the connecting steel bar, a stepped mounting hole matching the prefabricated pier column is provided at the middle top of the supporting platform, the lower end of the main steel bar and the upper end of the connecting steel bar both extend into the mounting hole, the bottom of the prefabricated pier column is supported on the stepped platform of the mounting hole, and a casting hole connected to the mounting hole is provided on the supporting platform below the stepped platform, and a connecting concrete column is cast in the mounting hole between the prefabricated pier column and the pedestal.

[0005] However, the above technical solution has the following defects:

[0006] Although the above-mentioned pedestals ensure effective connection during installation, the connection structure is difficult to solve the technical problem of bridge overturning. Structural overturning is a relatively complex mechanical phenomenon, which falls within the scope of nonlinear analysis of supports. Before the structure overturns, support bias or even de-energization will inevitably occur. After the supports are de-energized, the de-energized supports lose their supporting effect on the structure, and only the remaining supports are left to constrain the structure, which will inevitably lead to a redistribution of the support reaction force. In this process, problems such as the vertical pressure of the supports exceeding the design strength of the supports, causing support damage, will inevitably arise. Therefore, the above-mentioned technical problems need to be solved urgently. Utility Model Content

[0007] In view of the deficiencies in the above-mentioned prior art, the purpose of the present invention is to provide a bridge pier column.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solution: The present application provides a bridge pier column, comprising: a column body, arc columns arranged opposite to each other on both sides of the column body, the arc columns being connected to the column body through horizontally arranged connecting rods, the column body and the bridge deck bearing ends of the arc columns are located on the same horizontal extension line, and a buffer connection support is installed on the bridge deck bearing end of the arc column.

[0009] Furthermore, the arc-shaped column extends toward the bridge deck bearing end, and the bridge deck bearing end of the arc-shaped column is bent and extended along a side away from the column body.

[0010] Furthermore, at least two horizontally erected connecting rods are provided, and the connecting rods are arranged in parallel.

[0011] As a preferred solution of the present application, the buffer connection support includes: a base arranged on an arc column, a raising component installed on the base, a limiting retaining ring installed on the side wall of the raising component and located on the base, a buffer pad is laid on the limiting retaining ring, and a connecting seat is hinged on the side of the limiting retaining ring facing away from the base.

[0012] As a preferred solution of the present application, the cushioning component is any one of a rubber ring, a hydraulic damping member or a spring.

[0013] Furthermore, a shock absorber is installed on the column.

[0014] As a preferred solution of the present application, a bridge mounting seat is hingedly connected to a side of the shock absorber facing away from the column.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] This application provides pressure reserves for bridge piers through the addition of curved columns in conjunction with buffer connection supports provided on the curved columns, thereby increasing the torsional moment and reducing the impact of deformation of the bridge deck on the piers and supports at the connection points; and this structure raises the bridge deck, which can reduce the consumables for casting the piers; in addition, this connection method can ensure that the piers effectively bear the weight of the bridge and avoid the piers and the bridge deck from being separated. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0018] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the specific structure of the buffer connection support in the present utility model;

[0020] Figure 3 It is a side structural diagram of the buffer support in the utility model.

[0021] In the figure: 1. Column; 2. Arc column; 3. Buffer connection support; 31. Base; 32. Raise assembly; 33. Limit ring; 34. Buffer pad; 35. Connecting seat; 4. Connecting rod; 5. Shock absorber; 6. Bridge mounting seat. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] The main purpose of anti-overturning of bridges is to ensure that the bridge remains stable under various external forces and prevent it from overturning. The material of existing bridge piers can only bear weight and resist pressure, but cannot resist deformation. Under the action of deformation, the bridge piers are prone to cracking and damage, which in turn endangers the safety of use. Therefore, this application Figure 1-3 As shown, a bridge pier column is provided, comprising: a column body 1, arc columns 2 are arranged on both sides of the column body 1, and the arc columns 2 are connected to the column body 1 through a horizontally arranged connecting rod 4. The additional arc columns 2 are used to expand the force range of the pier, thereby improving the bearing capacity of the bridge. The bridge deck bearing ends of the column body 1 and the arc columns 2 are located on the same horizontal extension line, and a buffer connection support 3 is installed on the bridge deck bearing end of the arc column 2. The buffer connection support 3 itself has good anti-support ability. It can adjust the bridge deck height without affecting the bridge deck traffic through the provided buffer support seat, and compared with the original bridge pier column reinforcement scheme. It is simpler, and this connection method can ensure that the piers can effectively bear the pressure on the bridge and bear the amplitude and deformation of the supported bridge. In addition, when the bridge deck is affected by temperature, the connection end of the bridge deck is mainly built on the column 1, and there is a gap at the connection between the bridges (leaving a gap is an existing construction technology and will not be repeated here). The reason for this operation is also based on the fact that when the bridge deck bears load, it will sink and deform. If all the piers are tightly connected to the bridge deck, the adjacent piers will be pulled by the deformation of the bridge deck and sink, causing the center to bend closer, resulting in bending deformation of the piers. For this reason, this operation can ensure that the piers can always support the bridge deck, thereby improving the bearing capacity of the piers.

[0024] The arc column 2 extends toward the bridge deck bearing end (i.e., upward and outward as shown in the figure), and the bridge deck bearing ends of the arc column 2 are bent and extended along the side away from the column body 1, so that the contact area between the bridge deck bearing end of the arc column 2 and the pier column with the bridge is larger than the contact area between the ground contact end of the arc column 2 and the pier column, so as to expand the bearing and force area of ​​this application and further ensure that the bridge is effectively stable on this application.

[0025] At least two horizontally erected connecting rods 4 are provided, and the connecting rods 4 are arranged in parallel with each other. The connecting rods 4 ensure that the column 1 and the arc column 2 are pulled together and the pressure of the bridge can be shared at the same time.

[0026] The buffer connection support 3 includes: a base 31 that can be embedded in cement or threaded on the arc column 2, a cushion component 32 is installed on the base 31, and a limit ring 33 is installed at the side wall of the cushion component 32 and on the base 31 for physical protection of the cushion component 32, that is, the limit ring 33 is arranged on the base 31 to form a sealing pattern, and the cushion component 32 is located in the sealing pattern, and the cushion component 32 is in direct contact with and fixedly connected to the connecting seat 35, and a buffer pad 34 (preferably made of rubber material) is laid on the limit ring 33 to withstand vehicle loads, slow down the vibration transmission of the bridge and protect the bridge structure, and reduce the force on the column 1 and the arc column 2 by dispersing the load, and the limit ring 33 is hinged with a connecting seat 35 on the side facing away from the base 31, while ensuring construction quality and bridge safety, improving the bearing capacity and service life of the column 1 and the arc column 2.

[0027] The raising component 32 is any one of a rubber ring, a hydraulic damping component or a spring. In this application, a hydraulic damping component is preferably used so that when the support is repaired and maintained later, the lifting height of the bridge can be adjusted directly by controlling the hydraulic damping.

[0028] In order to further improve the bearing performance of the column 1 , a shock absorber 5 (preferably a spring shock absorber) is installed on the column 1 .

[0029] The shock absorber 5 is hingedly connected to a bridge mounting seat 6 on the side facing away from the column 1 to further enhance the anti-overturning capability of the bridge of the present application.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A bridge pier column, characterized in that: include: A column (1), arc columns (2) are arranged opposite to each other on both sides of the column (1), the arc columns (2) are connected to the column (1) via a horizontally erected connecting rod (4), the bridge deck bearing ends of the column (1) and the arc columns (2) are located on the same horizontal extension line, and a buffer connection support (3) is installed on the bridge deck bearing end of the arc column (2); The arc column (2) extends toward the bridge deck bearing end, and the bridge deck bearing end of the arc column (2) is bent and extends along a side facing away from the column body (1); The buffer connection support (3) comprises: a base (31) arranged on the arc column (2), a cushioning assembly (32) installed on the base (31), a limit retaining ring (33) installed on the side wall of the cushioning assembly (32) and on the base (31), a buffer pad (34) laid on the limit retaining ring (33), and a connection seat (35) hingedly connected on a surface of the limit retaining ring (33) facing away from the base (31).

2. A bridge pier column as claimed in claim 1, characterized in that: At least two horizontally erected connecting rods (4) are provided, and the connecting rods (4) are arranged in parallel.

3. A bridge pier column as claimed in claim 2, characterized in that: The cushioning component (32) is any one of a rubber ring, a hydraulic damping component or a spring.

4. The bridge pier column according to claim 1, characterized in that: A shock absorber (5) is installed on the column (1).

5. A bridge pier column as claimed in claim 4, characterized in that: A bridge mounting seat (6) is hingedly connected on a surface of the shock absorber (5) facing away from the column (1).

Images