Railway pier with less maintenance

Abstract

The utility model relates to the technical field of railway bridges, in particular to a less-maintenance railway bridge pier which comprises a pile foundation, a bearing platform, a bridge pier body, a tray and a top cap, the bearing platform is supported on the pile foundation, the bridge pier body is supported on the bearing platform, the tray is arranged at the top of the bridge pier body, the top cap is arranged at the top of the tray, and the top cap is arranged at the top of the tray. A short column is arranged on the top cap, a certain distance is reserved between the short column and the edge of the outer ring of the top cap to form a maintenance channel, and a retaining enclosure structure is arranged on the edge of the outer ring of the top cap to enclose the maintenance channel. The utility model has the advantages that the purpose of less maintenance of the railway pier is realized, the durability of the pier is greatly improved, and the construction is convenient; the method has good technical economy, obvious social benefits and wide application prospects; and the method has very high popularization and use values.

Description

Technical Field

[0001] The utility model relates to the technical field of railway bridges, in particular to a railway bridge pier with little maintenance. Background Art

[0002] Railway bridge piers are usually equipped with hanging fences on the top of the pier to leave space for maintenance of the bearings. The hanging fences are often made of triangular angle steel bracket structures and are set around the top of the pier. The hanging fence bracket structure is usually equipped with embedded U-bolts, embedded sleeves or embedded steel channels on the side of the pier top, and steel grating steps or reinforced concrete steps are set on the bracket. There are many connections on the construction site and the process is complicated. Many installation problems are often found during the acceptance of the engineering work, which is the focus of the inspection. In addition, the durability of the steel structure inspection channel is poor, and anti-corrosion coating is generally required once every ten years, and the maintenance workload is large. If the railway bridge pier is located in the ocean, the steel structure will be more durable and difficult to repair and maintain in a high-wind, high-wave, and highly corrosive environment for a long time. Summary of the invention

[0003] The purpose of the utility model is to provide a railway pier with low maintenance based on the above-mentioned deficiencies of the prior art. By optimizing the arrangement of the pier top caps, the suspended fence on the pier top is cancelled, the size of the pier top cap is increased, a short column is arranged in the middle of the top cap, a supporting cushion stone and a support are arranged on the top surface of the short column, an inspection passage is reserved around the short column, a groove is arranged in the middle of the short column, so as to facilitate the reservation of an inspection passage in the middle of the beam bottom support, a circle of enclosure plates is arranged on the outer circle of the top cap as a railing on the empty side of the inspection passage, and the inspection passage on the pier top adopts a reinforced concrete structure to achieve the purpose of low maintenance.

[0004] The purpose of this utility model is achieved by the following technical solutions:

[0005] A railway pier with little maintenance, comprising a pile foundation, a cap, a pier body, a tray and a top cap, wherein the cap is supported on the pile foundation, the pier body is supported on the cap, the tray is arranged on the top of the pier body, and the top cap is arranged on the top of the tray, characterized in that short columns are arranged on the top cap, a certain distance is left between the short columns and the outer circle edge of the top cap to form an inspection channel, and a retaining enclosure structure is arranged on the outer circle edge of the top cap to enclose the inspection channel.

[0006] Symmetrically arranged supporting stones are arranged above the short columns, and supports are respectively arranged above the supporting stones, and the supports are used to support the beam body.

[0007] A groove is arranged on the top of the short column, and the groove is located between the supporting pad stones.

[0008] The top surface of the top cap is provided with a drainage hole, and the drainage hole passes through the supporting enclosure structure.

[0009] The retaining enclosure structure is a panel arranged on the outer edge of the top cap, and the panel is a reinforced concrete structure.

[0010] The pile foundation, the cap, the pier body, the tray, the top cap and the short column are all made of reinforced concrete structure.

[0011] The utility model has the advantages of achieving the purpose of less maintenance of railway bridge piers, greatly improving the durability of the piers, and convenient construction; it has good technical and economic performance, obvious social benefits, and broad application prospects; it has high promotion and use value. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is the elevation layout of the bridge pier of the utility model;

[0013] Figure 2 This is a plan view of the bridge pier top cap of the utility model;

[0014] Figure 3 This is a cross-sectional view of the pier body in this embodiment. DETAILED DESCRIPTION

[0015] The following is a further detailed description of the features of the present invention and other related features through embodiments in conjunction with the accompanying drawings to facilitate understanding by technicians in the same industry:

[0016] like Figure 1-3 As shown, the marks 1-12 in the figure respectively represent: pile foundation 1, abutment 2, pier body 3, tray 4, top cap 5, short column 6, enclosure 7, supporting cushion stone 8, groove 9, drainage hole 10, support 11, beam body 12.

[0017] Example: Figures 1 to 3 As shown, the railway pier with little maintenance in this embodiment optimizes the arrangement of the pier top cap 5, eliminates the suspended fence on the pier top, increases the size of the top cap 5 located on the pier top, arranges a short column 6 in the middle of the top cap 5, arranges a supporting cushion stone 8 and a support 11 on the top surface of the short column 6 to support the beam 12 above, leaves an inspection channel of not less than 60 cm around the short column 6, and arranges a groove 9 in the middle of the short column 6 to facilitate leaving an inspection channel in the middle of the support 11 at the bottom of the beam. A circle of panels 7 as a supporting enclosure structure are arranged on the outer circle of the top cap 5 as a railing protection for the inspection channel adjacent to the empty side. The inspection channel on the pier top adopts a reinforced concrete structure to achieve the purpose of less maintenance of the pier.

[0018] Specifically, each structure in this embodiment has the following structural features:

[0019] Pile foundation 1 is a reinforced concrete structure. The concrete grade is determined in combination with the environmental action grade at the bridge site. The number of pile foundation 1 is designed in combination with force calculation.

[0020] The cap 2 is a reinforced concrete structure, and the concrete grade is determined in combination with the environmental action grade at the bridge site. The cap 2 is arranged above the pile foundation 1 and is stably supported by the pile foundation 1.

[0021] The pier body 3 is a reinforced concrete structure, and the concrete grade is determined in combination with the environmental grade at the bridge site, such as Figure 3 As shown, the pier body 3 has a round-end shape and is stably supported by the cap 2 .

[0022] The tray 4 is a reinforced concrete structure. The concrete grade is determined in combination with the environmental action grade at the bridge site. The tray 4 is a width transition section between the top cap 5 and the pier body 3 .

[0023] The top cap 5 is a reinforced concrete structure. The concrete grade is determined in combination with the environmental action grade at the bridge site. The top cap 5 must meet the arrangement conditions of the bearing 11 and leave an inspection passage for personnel to inspect the bearing. In order to reduce the workload of bridge pier maintenance, the conventionally designed steel structure hanging fence is cancelled, and the top cap 5 is widened and short columns 6 are further arranged, so that a certain space left between the short columns 6 and the widened top cap 5 forms an inspection passage. Daily inspection and maintenance of the bearing 11 are carried out on the widened top cap 5. The top cap 5 is rectangular in shape.

[0024] The short column 6 is a reinforced concrete structure, and the concrete grade is determined in combination with the environmental action grade at the bridge site. The short column is about 1m high, and a supporting cushion stone 8 is arranged on its top surface. The top caps 5 around the short column 6 are provided with conditions for maintenance bearings 11.

[0025] The enclosure 7 is a reinforced concrete structure, and the concrete grade is determined in combination with the environmental action grade at the bridge site. It is arranged on the outer circle of the top cap 5, about 1 m high, to protect the safety of maintenance personnel during the inspection process.

[0026] The supporting cushion stone 8 is a reinforced concrete structure, the concrete grade is determined in combination with the environmental action grade at the bridge site, and a bearing 11 is arranged on the top surface thereof.

[0027] The groove 9 is arranged at the top of the short column 6 and is located between the two supporting pad stones 8 . Maintenance personnel can inspect the support 11 around the short column 6 through the groove 9 .

[0028] The drain hole 10 is arranged on the top surface of the top cap 5 , passes through the enclosure 7 , and drains rainwater on the top surface of the top cap 5 .

[0029] The support 11 is an important connecting structure between the beam body 12 and the pier body 3 , and the load of the beam body 12 is transferred to the pier through the support 11 .

[0030] The beam body 12 is a prestressed concrete structure. The concrete grade is determined in combination with the environmental action grade at the bridge site, and its span is arranged in combination with the on-site conditions.

[0031] In this embodiment, the pier body 3, the tray 4, the top cap 5, the short column 6, the enclosure 7, the supporting cushion stone 8, the groove 9, etc. are all cast on site.

[0032] Although the above embodiments have described the concepts and embodiments of the purpose of the utility model in detail with reference to the accompanying drawings, ordinary technicians in this field can recognize that various improvements and modifications can still be made to the utility model without departing from the scope of the claims, so they are not described one by one here.

Claims

1. A low-maintenance railway bridge pier, comprising a pile foundation, a cap, a pier body, a tray, and a cap, wherein the cap is supported on the pile foundation, the pier body is supported on the cap, the tray is arranged on the top of the pier body, and the cap is arranged on the top of the tray, characterized in that: A short column is arranged on the top cap, and a certain distance is left between the short column and the outer circle edge of the top cap to form an inspection passage. A supporting enclosure structure is arranged on the outer circle edge of the top cap to enclose the inspection passage.

2. The low-maintenance railway bridge pier according to claim 1, characterized in that: Symmetrically arranged supporting stones are arranged above the short columns, and supports are respectively arranged above the supporting stones, and the supports are used to support the beam body.

3. The low-maintenance railway bridge pier according to claim 2, characterized in that: A groove is arranged on the top of the short column, and the groove is located between the supporting pad stones.

4. The low-maintenance railway bridge pier according to claim 1, characterized in that: The top surface of the top cap is provided with a drainage hole, and the drainage hole passes through the supporting enclosure structure.

5. A low-maintenance railway bridge pier according to claim 1 or 4, characterized in that: The retaining enclosure structure is a panel arranged on the outer edge of the top cap, and the panel is a reinforced concrete structure.

6. The low-maintenance railway bridge pier according to claim 1, characterized in that: The pile foundation, the cap, the pier body, the tray, the top cap and the short column are all made of reinforced concrete structure.

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