Bridge modular UHPC prefabricated concrete component
By introducing structures such as positioning notches, pouring holes, pouring sleeves, and positioning plates into the modular UHPC precast concrete components for bridges, the problem of difficult alignment between columns and abutments was solved, achieving a fast and stable connection effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU SUIHUA EXPRESSWAY CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-05
AI Technical Summary
When connecting existing precast bridge components to the pier cap, it is not easy to clearly and intuitively observe whether the insertion hole at the bottom of the column is connected to the steel reinforcement on the pier cap, which affects the installation efficiency.
Positioning notches, pouring holes, pouring sleeves, positioning plates, and grooves are set in UHPC precast concrete columns and foundations. These structures enable intuitive alignment and splicing of column reinforcement and foundation reinforcement, improving the visibility and stability of the connection.
The design of the positioning notch and positioning plate enables a quick and accurate connection between the column and the foundation, improving installation efficiency and connection strength.
Smart Images
Figure CN224199766U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge precast components, and in particular to a modular UHPC concrete precast component for bridges. Background Technology
[0002] Modular UHPC precast concrete components for bridges are bridge components made of ultra-high performance concrete (UHPC) material. They have advantages such as high strength, high durability, and lightweight, and are widely used in the rapid construction and repair of bridge projects.
[0003] However, existing prefabricated bridge components, such as columns, do not allow operators to clearly and intuitively observe whether the insertion holes at the bottom of the column are properly connected to the reinforcing bars on the foundation, thus affecting installation efficiency.
[0004] Therefore, it is essential to invent a modular UHPC precast concrete component for bridges. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a technical solution for a modular UHPC concrete precast component for bridges: a modular UHPC concrete precast component for bridges includes a UHPC concrete precast column, a positioning notch, a pouring hole, a UHPC concrete precast foundation, and a positioning plate, wherein: a plurality of pouring sleeves are uniformly poured into the bottom of the UHPC concrete precast column, column reinforcement is poured into the UHPC concrete precast column, one end of the column reinforcement is inserted into the corresponding pouring sleeve, and the other end of the column reinforcement protrudes from the top of the UHPC concrete precast column, positioning notches and pouring holes are respectively opened on both sides of the bottom of the UHPC concrete precast column, the pouring hole is above the positioning notch, and the pouring hole is connected to the positioning notch and each pouring sleeve;
[0006] One end of the casting sleeve protrudes from the bottom of the UHPC precast concrete column;
[0007] The UHPC precast concrete foundation has foundation reinforcement bars cast inside. One end of the foundation reinforcement bars protrudes from the upper surface of the UHPC precast concrete foundation. The number and position of the protruding foundation reinforcement bars correspond to the number and position of the casting sleeves. The foundation reinforcement bars are inserted into the corresponding casting sleeves.
[0008] The UHPC precast concrete foundation has a positioning plate cast inside, which corresponds to the positioning notch. One end of the positioning plate protrudes from the upper surface of the UHPC precast concrete foundation, and the positioning plate is inserted into the corresponding positioning notch.
[0009] The positioning notch of the UHPC precast concrete column is uniformly provided with several grooves, and the grooves are connected to the pouring holes.
[0010] The inner side of the positioning plate is uniformly provided with several grooves, and UHPC concrete is poured between the grooves and the first groove.
[0011] UHPC concrete is poured between the reinforcing steel of the foundation and the corresponding casting sleeve.
[0012] The bottom and top of the UHPC precast concrete columns are roughened.
[0013] The upper surface of the UHPC precast concrete foundation is roughened.
[0014] Compared with the prior art, the advantages of this utility model are:
[0015] The overall design of this utility model allows for clear and intuitive positioning of the foundation reinforcement and casting sleeves through positioning notches and positioning plates during the assembly and connection of UHPC precast concrete columns and UHPC precast concrete foundations. This facilitates the quick insertion of the foundation reinforcement into the corresponding casting sleeves, thereby improving installation efficiency. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0017] Figure 2 This is an exploded structural diagram of the present invention.
[0018] Figure 3 This is a schematic diagram of the bottom structure of the UHPC precast concrete column of this utility model.
[0019] Figure 4 This is a schematic diagram of the UHPC precast concrete foundation structure of this utility model.
[0020] In the picture:
[0021] 1. UHPC precast concrete column; 2. Casting sleeve; 3. Column reinforcement; 4. Positioning notch; 5. Casting hole; 6. UHPC precast concrete foundation; 7. Foundation reinforcement; 8. Positioning plate; 9. Groove one; 10. Groove two. Detailed Implementation
[0022] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0023] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.
[0024] The present invention will be further described below with reference to the accompanying drawings: Example
[0025] Reference Figure 1-4 A modular UHPC precast concrete component for bridges includes a UHPC precast concrete column 1, a positioning notch 4, a pouring hole 5, a UHPC precast concrete abutment 6, and a positioning plate 8. The bottom of the UHPC precast concrete column 1 is uniformly filled with several pouring sleeves 2. A column reinforcing bar 3 is poured inside the UHPC precast concrete column 1. One end of the column reinforcing bar 3 is inserted into the corresponding pouring sleeve 2, and the other end protrudes from the top of the UHPC precast concrete column 1. Positioning notches 4 and pouring holes 5 are respectively opened on both sides of the bottom of the UHPC precast concrete column 1. The pouring holes 5 are above the positioning notches 4 and are connected to the positioning notches 4 and each pouring sleeve 2, so that the required UHPC concrete can be poured into the pouring sleeve 2 through the pouring holes 5.
[0026] Specifically, one end of the casting sleeve 2 protrudes from the bottom of the UHPC precast concrete column 1 so that the casting sleeve 2 can be connected with the foundation reinforcement 7.
[0027] Specifically, the UHPC precast concrete foundation 6 is filled with foundation reinforcement 7. One end of the foundation reinforcement 7 protrudes from the upper surface of the UHPC precast concrete foundation 6. The number and position of the protruding foundation reinforcement 7 correspond to the number and position of the casting sleeve 2. The foundation reinforcement 7 is inserted into the corresponding casting sleeve 2 to ensure the stability of the UHPC precast concrete foundation 6 after it is connected to the UHPC precast concrete column 1 and to improve the strength of the connection.
[0028] Specifically, the UHPC precast concrete foundation 6 has a positioning plate 8 inside that corresponds to the positioning notch 4. One end of the positioning plate 8 protrudes from the upper surface of the UHPC precast concrete foundation 6 and is inserted into the corresponding positioning notch 4.
[0029] The positioning plate 8 is made of metal plate, such as steel plate, in order to improve the stability of the UHPC precast concrete foundation 6 after it is connected to the column 1 and to improve the strength of the connection.
[0030] The outer surface of the positioning plate 8 is treated with rust prevention.
[0031] Specifically, the positioning notch 4 of the UHPC precast concrete column 1 is uniformly provided with several grooves 9, which are connected to the pouring hole 5, so as to increase the bonding area and bonding strength between the positioning notch 4 and the UHPC concrete through the grooves 9.
[0032] Specifically, the inner side of the positioning plate 8 is evenly provided with several grooves 10, and UHPC concrete is poured between the grooves 10 and the grooves 9 to increase the bonding area and bonding strength between the positioning plate 8 and the UHPC concrete.
[0033] Specifically, UHPC concrete is poured between the foundation reinforcement 7 and the corresponding casting sleeve 2 to improve the bond strength between them.
[0034] Specifically, the bottom and top of the UHPC precast concrete column 1 are roughened to better bond with the UHPC concrete.
[0035] Specifically, the upper surface of the UHPC precast concrete foundation 6 is roughened to better bond with the UHPC concrete.
[0036] In this embodiment, when in use, the UHPC precast concrete foundation 6 is pre-embedded in the required foundation, and the foundation reinforcement 7 and positioning plate 8 are exposed from the foundation.
[0037] Then, the UHPC precast concrete column 1 is erected, and the positioning notch 4 at the bottom of the UHPC precast concrete column 1 is aligned with the positioning plate 8, so that the casting sleeve 2 and the foundation reinforcement 7 can be positioned in a conspicuous and intuitive way through the positioning notch 4 and the positioning plate 8.
[0038] In this way, when the positioning plate 8 is inserted into the positioning notch 4, the foundation steel bar 7 can be inserted into the corresponding casting sleeve 2;
[0039] Finally, the required UHPC concrete can be poured into the casting sleeve 2, the second groove 10, and the first groove 9 through the casting hole 5.
[0040] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.
Claims
1. A modular UHPC precast concrete component for bridges, characterized in that: The UHPC precast concrete column (1), positioning notch (4), pouring hole (5), UHPC precast concrete foundation (6) and positioning plate (8) are included. Among them: several pouring sleeves (2) are uniformly poured at the bottom inside the UHPC precast concrete column (1). The UHPC precast concrete column (1) is filled with column steel bars (3). One end of the column steel bars (3) is inserted into the corresponding pouring sleeve (2). The other end of the column steel bars (3) protrudes from the top of the UHPC precast concrete column (1). Positioning notches (4) and pouring holes (5) are respectively opened on both sides of the bottom of the UHPC precast concrete column (1). The pouring holes (5) are above the positioning notches (4). The pouring holes (5) are connected to the positioning notches (4) and each pouring sleeve (2). One end of the casting sleeve (2) protrudes from the bottom of the UHPC precast concrete column (1); The UHPC precast concrete foundation (6) is filled with foundation steel bars (7). One end of the foundation steel bars (7) protrudes from the upper surface of the UHPC precast concrete foundation (6). The number and position of the protruding foundation steel bars (7) correspond to the number and position of the casting sleeves (2). The foundation steel bars (7) are inserted into the corresponding casting sleeves (2). The UHPC precast concrete foundation (6) is filled with a positioning plate (8) corresponding to the positioning notch (4). One end of the positioning plate (8) protrudes from the upper surface of the UHPC precast concrete foundation (6), and the positioning plate (8) is inserted into the corresponding positioning notch (4).
2. The modular UHPC precast concrete component for bridges as described in claim 1, characterized in that: The positioning notch (4) of the UHPC precast concrete column (1) is uniformly provided with several grooves (9), and the grooves (9) are connected to the pouring hole (5).
3. A modular UHPC precast concrete component for bridges as described in claim 1, characterized in that: The inner side of the positioning plate (8) is uniformly provided with a number of grooves two (10), and UHPC concrete is poured between the grooves two (10) and the groove one (9).
4. A modular UHPC precast concrete component for bridges as described in claim 1, characterized in that: UHPC concrete is poured between the foundation reinforcement (7) and the corresponding casting sleeve (2).
5. A modular UHPC precast concrete component for bridges as described in claim 1, characterized in that: The bottom and top of the UHPC precast concrete column (1) are roughened.
6. A modular UHPC precast concrete component for bridges as described in claim 1, characterized in that: The upper surface of the UHPC precast concrete foundation (6) is roughened.