Enclosing assembled pier

Abstract

The utility model discloses a kind of enclose type assembled bridge piers, comprising: assembled bridge pier main body and the bearing platform being set in the lower end of assembled bridge pier main body, the top of assembled bridge pier main body is also provided with prefabricated bent cap;The assembled bridge pier main body is composed of two first reinforced plates and two second reinforced plates, two The first reinforced plate is oppositely arranged, two The second reinforced plate is also oppositely arranged;The inner surface of the first reinforced plate The two side edges of vertical first anchoring plate are provided, the inner surface of the second reinforced plate The two side edges of vertical second anchoring plate are provided, first anchoring plate and second anchoring plate are all provided with round hole, shear connector is provided in the round hole, and the first anchoring plate and second anchoring plate are anchored by cast-in-place concrete column. The connection strength between the existing assembled bridge pier component and the problem that the integrity is poor and the structure is complex, difficult to repair.

Description

Technical Field

[0001] This utility model belongs to the field of bridge engineering technology, specifically relating to an enclosed assembly bridge pier. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] In bridge construction, bridge piers, as crucial load-bearing structures, are traditionally constructed using on-site monolithic casting. This method is time-consuming, significantly constrained by external factors such as weather and site conditions. The concrete pouring process is easily affected by changes in ambient temperature and humidity, leading to quality fluctuations and making it difficult to guarantee construction precision and consistency. Furthermore, on-site casting generates substantial construction waste and noise, causing significant environmental pollution. Additionally, traditional reinforced concrete bridge piers are prone to plastic deformation under strong earthquakes, resulting in the spalling of the concrete protective layer or even severe crushing. Moreover, the prefabrication and assembly of traditional piers on-site significantly impacts project progress, while the high requirements for hoisting equipment necessitate prefabrication. Therefore, traditional bridge piers suffer from problems such as susceptibility to earthquake damage, difficulty in post-earthquake repair, and inconvenient construction.

[0004] With the development of ultra-high performance concrete (UHPC) as a new material, prefabricated bridge piers have been gradually developed. However, existing prefabricated bridge piers, due to their partially prefabricated structure and connection methods, have poor connection strength and overall integrity between pier components. Under complex loads such as earthquakes and heavy loads, cracks and displacements are prone to occur at the connection points, affecting the safety of the bridge structure. Some connection structures are also complex in design, increasing the difficulty of on-site assembly and construction costs, and are not conducive to later maintenance and repair. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides an enclosed, modular bridge pier, which solves the issues of long construction cycles, numerous on-site wet operations, and difficulty in controlling construction quality associated with traditional bridge piers. It also addresses the problems of poor connection strength and overall integrity between existing modular bridge pier components, as well as their complex structure and difficulty in repair.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: This utility model provides an enclosed prefabricated bridge pier, including: a prefabricated bridge pier body and a bearing platform disposed at the lower end of the prefabricated bridge pier body, and a prefabricated cap beam is also disposed on the top of the prefabricated bridge pier body; The main body of the assembled bridge pier consists of two first reinforcing plates and two second reinforcing plates. The two first reinforcing plates are arranged opposite each other, and the two second reinforcing plates are also arranged opposite each other to form a rectangular tubular structure. A first anchor plate is vertically arranged at both sides of the inner surface of the first reinforcing plate, and a second anchor plate is vertically arranged at both sides of the inner surface of the second reinforcing plate. The first anchor plate is arranged along the length direction of the first reinforcing plate, and the second anchor plate is arranged along the length direction of the second reinforcing plate. Both the first and second anchor plates are provided with circular holes, and shear connectors are installed in the circular holes. The first and second anchor plates are anchored by cast-in-place concrete columns to realize the connection between the first and second reinforcing plates.

[0007] As a further implementation, the shear connector is an L-shaped integral structure formed by two cylindrical sections, with its two ends inserted into the circular holes on the first anchor plate and the second anchor plate, respectively. Alternatively, the shear connector may consist of two independent cylindrical sections, which are respectively inserted into the circular holes on the first anchor plate and the second anchor plate.

[0008] As a further implementation, the first stiffening plate and the second stiffening plate have the same length, and the width of the first stiffening plate is greater than the width of the second stiffening plate.

[0009] As a further implementation, both the first and second stiffening plates are provided with longitudinal steel bars, and both ends of the longitudinal steel bars extend beyond the first and second stiffening plates by a certain length for connecting the foundation and the precast cap beam.

[0010] As a further implementation, the first and second reinforcing plates are also provided with transverse reinforcing bars, and the longitudinal reinforcing bars and the transverse reinforcing bars together form a mesh structure; the transverse reinforcing bars in the first reinforcing plate are connected to the first anchor plate by welding, and the transverse reinforcing bars in the second reinforcing plate are also connected to the second anchor plate by welding.

[0011] As a further implementation, multiple corrugated pipes are pre-embedded in the precast cap beam. The multiple corrugated pipes are arranged in a rectangular shape. The corrugated pipes are used to install the longitudinal steel bars at the ends of the first and second stiffening plates, and a stable connection is achieved by pouring concrete.

[0012] As a further implementation, both sides of the first and second reinforcing plates are provided with bevels. The bevels are located on the side of the first and second anchor plates near their edges, so that the first and second reinforcing plates are perpendicular to each other when spliced. This facilitates bringing the first and second anchor plates close together and anchoring them together by pouring concrete to form a stable connection.

[0013] As a further implementation, a rectangular slot is provided on the pier platform for inserting the assembled pier body into the slot, and a stable connection between the assembled pier body and the pier platform is achieved by pouring concrete.

[0014] As a further implementation, the first stiffening plate, the second stiffening plate, the foundation, and the precast cap beam are all precast using UHPC casting.

[0015] As a further implementation, the first anchor plate and the second anchor plate are provided with a plurality of circular holes, and the circular holes are arranged along the length direction of the first anchor plate and the second anchor plate; each circular hole is provided with a shear connector.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are: This utility model presents an enclosed prefabricated bridge pier structure, composed of the main body, abutment, and precast cap beam. Through the rational design and connection of each part, it forms a stable and efficient load-bearing system. Compared with traditional bridge piers, its construction efficiency is higher, allowing most components to be prefabricated in the factory, reducing on-site construction time and workload. Simultaneously, the modular design facilitates later maintenance and replacement. The stiffening plates of the main body of the prefabricated bridge pier are interconnected through shear connectors and anchor plates, and connected to the abutment and precast cap beam through steel bars and concrete, forming a complete load-bearing system. Under load, each part works collaboratively to share the load, effectively improving the pier's bearing capacity and stability. When the pier is subjected to lateral forces, the stiffening plates, anchor plates, shear connectors, abutment, and precast cap beam work together to disperse and transfer the lateral forces, preventing excessive local stress that could lead to structural damage. Attached Figure Description

[0017] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0018] Figure 1 This is a structural diagram of the enclosed assembly bridge pier of this utility model; Figure 2 This is a structural diagram of the first stiffening plate, the second stiffening plate, and the foundation of this utility model. Figure 3 This is a top view of the main body of the assembled bridge pier according to Embodiment 1 of this utility model; Figure 4 This is a structural diagram of the first anchoring plate in Embodiment 1 of this utility model.

[0019] In the diagram: 1. Assembled pier main body; 2. Pier cap; 3. Precast cap beam; 4. Second reinforcing plate; 5. Second anchor plate; 6. First reinforcing plate; 7. First anchor plate; 8. Third anchor bar; 9. Longitudinal reinforcement; 10. Temporary formwork; 11. Cast-in-place concrete column; 12. Shear connector; 13. Circular hole. Detailed Implementation

[0020] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0021] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise expressly indicated by the present invention, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof. Example 1 This embodiment discloses an enclosed, assembled bridge pier, such as... Figures 1-4 As shown, it includes: a main body 1 of the assembled bridge pier and a bearing platform 2 set at the lower end of the main body 1 of the assembled bridge pier. A precast cap beam 3 is also set on the top of the main body 1 of the assembled bridge pier; making the structure of the bridge pier simpler and having good load-bearing performance and convenient construction.

[0022] The assembled bridge pier body 1 consists of two first reinforcing plates 6 and two second reinforcing plates 4. The two first reinforcing plates 6 are arranged opposite each other, and the two second reinforcing plates 4 are also arranged opposite each other, forming a rectangular tubular structure. Compared with traditional solid bridge piers, this structure greatly reduces the weight of the bridge pier itself, lowers material costs, and reduces the pressure on the foundation while ensuring the same load-bearing capacity. First anchor plates 7 are vertically installed at both sides of the inner surface of the first reinforcing plate 6, and second anchor plates 5 are vertically installed at both sides of the inner surface of the second reinforcing plate 4. The first anchor plates 7 are arranged along the length of the first reinforcing plate 6, and the second anchor plates 5 are arranged along the length of the second reinforcing plate 4. The anchor plate 5 provides a reliable anchoring foundation for the connection between the reinforcing plates, enhancing the integrity and stability of the assembled pier body 1. Both the first anchor plate 7 and the second anchor plate 5 have circular holes 13, in which shear connectors 12 are installed. Temporary formwork 10 is provided around the first anchor plate 7 and the second anchor plate 5 for pouring concrete columns. Third anchor bars 8 are horizontally installed at the ends of the first reinforcing plates 6 and 4 near the pier cap 2 for connecting to the pier cap 2 via concrete pouring. The first anchor plate 7 and the second anchor plate 5 are anchored to the cast-in-place concrete column 11, thus connecting the first reinforcing plates 6 and 4. This method effectively transmits the shear force between the reinforcing plates, ensuring that all parts work together to share the load under stress.

[0023] As a further implementation, the shear connector 12 is an L-shaped integral structure formed by two cylindrical sections, with its two ends inserted into the round holes 13 on the first anchor plate 7 and the second anchor plate 5, respectively. This provides greater shear resistance and is easy to install, requiring only one insertion into the round holes 13, thus reducing construction steps. Alternatively, the shear connector 12 can be two independent cylinders, which are respectively inserted into the circular holes 13 on the first anchor plate 7 and the second anchor plate 5. While meeting certain shear resistance requirements, this reduces the manufacturing difficulty and is suitable for engineering scenarios with relatively low shear resistance requirements.

[0024] As a further implementation, the first stiffening plate 6 and the second stiffening plate 4 have the same length, and the width of the first stiffening plate 6 is greater than the width of the second stiffening plate 4.

[0025] As a further implementation, both the first stiffening plate 6 and the second stiffening plate 4 are provided with longitudinal steel bars 9, and both ends of the longitudinal steel bars 9 extend beyond the first stiffening plate 6 and the second stiffening plate 4 by a certain length to connect the pier cap 2 and the precast cap beam 3. The longitudinal steel bars 9 can effectively enhance the vertical bearing capacity of the pier body, and the extended parts are connected to the pier cap 2 and the precast cap beam 3, so that the entire pier structure forms a complete force system.

[0026] As a further implementation, the first reinforcing plate 6 and the second reinforcing plate 4 are also provided with transverse reinforcing bars, and the longitudinal reinforcing bars 9 and the transverse reinforcing bars together form a mesh structure; the transverse reinforcing bars in the first reinforcing plate 6 are connected to the first anchor plate 7 by welding, and the transverse reinforcing bars in the second reinforcing plate 4 are also connected to the second anchor plate 5 by welding. The mesh reinforcing bar structure further enhances the integrity and crack resistance of the reinforcing plate, and the welding connection method ensures a reliable connection between the reinforcing bars and the anchor plate.

[0027] As a further implementation, multiple corrugated pipes are pre-embedded in the precast cap beam 3. The multiple corrugated pipes are arranged in a rectangular shape. The corrugated pipes are used to install the longitudinal steel bars 9 at the ends of the first stiffening plate 6 and the second stiffening plate 4, and a stable connection is achieved by pouring concrete, which provides precise positioning and protection for the installation of the longitudinal steel bars 9.

[0028] As a further implementation, both sides of the first reinforcing plate 6 and the second reinforcing plate 4 are provided with bevels. The bevels are provided on the side of the first anchoring plate 7 and the second anchoring plate 5 near the edge, so that the first reinforcing plate 6 and the second reinforcing plate 4 are perpendicular to each other when spliced, which makes it easier to bring the first anchoring plate 7 and the second anchoring plate 5 close together and anchor them to form a stable connection by pouring concrete.

[0029] As a further implementation, the pier cap 2 is provided with a rectangular slot for inserting the assembled pier body 1 into the slot, and the assembled pier body 1 and the pier cap 2 are stably connected by pouring concrete, which ensures smooth load transfer between the pier cap 2 and the pier body and improves the stability of the entire pier structure.

[0030] As a further implementation, the first stiffening plate 6, the second stiffening plate 4, the foundation 2, and the precast cap beam 3 are all precast using UHPC casting.

[0031] As a further implementation, the first anchor plate 7 and the second anchor plate 5 are provided with a plurality of circular holes 13, and the circular holes 13 are arranged along the length direction of the first anchor plate 7 and the second anchor plate 5; each circular hole 13 is provided with a shear connector 12.

[0032] The construction process of enclosed assembly bridge piers includes the following steps: S1: The prefabricated first stiffening plate 6 and second stiffening plate 4 are manufactured in the processing plant. The pre-embedded shear connector 12 is installed in a fixed position. Steam curing can be used to improve the appearance quality. S2: The foundation 2 is installed on the construction site by means of cast-in-place or prefabrication. A groove is pre-drilled on the foundation 2. The prefabricated first stiffening plate 6 and second stiffening plate 4 are inserted into the groove. Then, UHPC is poured into the groove to achieve an effective connection between the prefabricated first stiffening plate 6, second stiffening plate 4, and foundation 2. S3: Install a temporary formwork 10 between the precast first stiffening plate 6 and the second stiffening plate 4, and fix it to the precast first stiffening plate 6 and the second stiffening plate 4. Note that the temporary formwork 10 needs to install the shear connector 12 in the round holes 13 on the first anchor plate 7 and the second anchor plate 5. After the temporary formwork 10 is installed, pour UHPC into it to connect the two precast first anchor plates 7 and the two precast second anchor plates 5 into a whole.

[0033] S4: After the UHPC in the UHPC hollow pier has solidified, the precast cap beam 3 is hoisted onto the top of the pier column. The longitudinal reinforcement bars in the pier column pass through the cap beam, and the UHPC is poured into the corrugated pipe of the cap beam to complete the construction of the prefabricated pier.

[0034] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A boxed assembled bridge pier, characterized by, include: The assembled bridge pier body and the bearing platform set at the lower end of the assembled bridge pier body are provided, and a precast cap beam is also provided on the top of the assembled bridge pier body; The main body of the assembled bridge pier consists of two first reinforcing plates and two second reinforcing plates. The two first reinforcing plates are arranged opposite each other, and the two second reinforcing plates are also arranged opposite each other to form a rectangular tubular structure. A first anchor plate is vertically installed at both sides of the inner surface of the first reinforcing plate, and a second anchor plate is vertically installed at both sides of the inner surface of the second reinforcing plate. The first anchor plate is arranged along the length direction of the first reinforcing plate, and the second anchor plate is arranged along the length direction of the second reinforcing plate. Both the first and second anchor plates are provided with circular holes, and shear connectors are installed in the circular holes. The first and second anchor plates are anchored by cast-in-place concrete columns to realize the connection between the first and second reinforcing plates.

2. An enclosure type assembled pier according to claim 1, wherein The shear connector is an L-shaped integral structure formed by two cylindrical sections, with its two ends inserted into the circular holes on the first anchor plate and the second anchor plate, respectively. Alternatively, the shear connector may consist of two independent cylindrical sections, which are respectively inserted into the circular holes on the first anchor plate and the second anchor plate.

3. An enclosure type assembled pier according to claim 1, wherein The first stiffening plate and the second stiffening plate have the same length, and the width of the first stiffening plate is greater than the width of the second stiffening plate.

4. An enclosure type assembled pier according to claim 1, wherein Both the first and second stiffening plates are provided with longitudinal steel bars, and both ends of the longitudinal steel bars extend beyond the first and second stiffening plates by a certain length to connect the foundation and the precast cap beam.

5. An enclosure type assembled pier according to claim 4, wherein The first and second reinforcing plates are also provided with transverse steel bars, and the longitudinal steel bars and the transverse steel bars together form a mesh structure; the transverse steel bars in the first reinforcing plate are connected to the first anchor plate by welding, and the transverse steel bars in the second reinforcing plate are also connected to the second anchor plate by welding.

6. An enclosure type assembled pier according to claim 5, wherein The precast cap beam has multiple corrugated pipes embedded in it. The corrugated pipes are arranged in a rectangular shape and are used to install the longitudinal steel bars at the ends of the first and second stiffening plates. The connection is achieved by pouring concrete.

7. An enclosure type assembled pier according to claim 1, wherein Both sides of the first and second reinforcing plates are provided with bevels. The bevels are located on the side of the first and second anchor plates near the edge, so that the first and second reinforcing plates are perpendicular to each other when spliced. This makes it easy to bring the first and second anchor plates close together and anchor them to form a stable connection by pouring concrete.

8. An enclosure type assembled pier according to claim 1, wherein The pier platform is provided with a rectangular slot for inserting the assembled pier body into the slot, and a stable connection between the assembled pier body and the pier platform is achieved by pouring concrete.

9. An enclosure type assembled pier according to claim 1, wherein The first stiffening plate, the second stiffening plate, the foundation and the precast cap beam are all precast using UHPC casting.

10. The enclosed assembly bridge pier as described in claim 1, characterized in that, The first anchor plate and the second anchor plate are provided with a plurality of circular holes, and the circular holes are arranged along the length direction of the first anchor plate and the second anchor plate; each circular hole is provided with a shear connector.

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