Connecting structure of prefabricated bridge pier

Abstract

The utility model relates to the technical field of prefabricated piers, in particular to a prefabricated pier connecting structure which comprises a first column body, and a plurality of first connecting plates are evenly installed on the top face of the first column body in a circumferential array mode. A short column is formed on the bottom face of the second column in a protruding mode, and a plurality of second connecting plates are evenly installed on the bottom face of the short column in a circumferential array mode; the inner diameter of the non-closed circumference formed by the first connecting plates is larger than the outer diameter of the non-closed circumference formed by the second connecting plates, the first connecting plates and the second connecting plates are in butt joint in a staggered mode, and the second connecting plates seal gaps between the first connecting plates. According to the utility model, the connection process between the pier columns is simple and convenient and is not easily influenced by the field environment and climate, and the construction efficiency of the whole project is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of connection structure for precast bridge piers, specifically to a connection structure for precast bridge piers. Background Technology

[0002] With the rapid development of the transportation industry, bridge engineering is becoming increasingly common. As an intermediate structure that supports the upper and lower parts of the bridge, the construction quality of the piers directly affects the use of the bridge.

[0003] Most existing piers are constructed using cast-in-place methods. The construction period is greatly affected by the site environment and climate. In severe weather, the construction period is longer, the cast-in-place structure is prone to defects, it is difficult to guarantee the overall construction quality, and the construction efficiency is low. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model adopts the following technical solution:

[0005] A connection structure for precast bridge piers, comprising:

[0006] The first column has multiple first connecting plates evenly installed in a circular array on its top surface;

[0007] The second column has a short column protruding from its bottom surface, and multiple second connecting plates are evenly installed in a circular array on the bottom surface of the short column.

[0008] The inner diameter of the non-closed circumference formed by the first connecting plate is larger than the outer diameter of the non-closed circumference formed by the second connecting plate. The multiple first connecting plates and the multiple second connecting plates are misaligned and connected, and the second connecting plates close the gap between the first connecting plates.

[0009] Furthermore, both the first connecting plate and the second connecting plate are curved steel plates.

[0010] Furthermore, there are four of each of the first and second connecting plates, and the installation positions of the first and second connecting plates differ by 90°.

[0011] Furthermore, the first connecting plate and the second connecting plate in the same radial direction are fixedly connected by closed reinforcing bars, and multiple closed reinforcing bars are arranged in parallel.

[0012] Furthermore, a stiffening rib is fixedly installed on the outer side of the connection between the first connecting plate and the first column.

[0013] Furthermore, the outer side of the short column is filled with UHPC concrete after pouring.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The connection process between the piers is simple and not easily affected by the site environment and climate, which improves the overall construction efficiency of the project.

[0016] 2. The structure is integral and the stress is evenly distributed, reducing the possibility of structural defects. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a front view of a connection structure for a prefabricated bridge pier provided in Embodiment 1 of this utility model;

[0019] Figure 2 for Figure 1 A cross-sectional view of the first column in a connection structure of a precast bridge pier is shown.

[0020] Figure 3 for Figure 1 A cross-sectional view of the second column in a connection structure of a precast bridge pier is shown.

[0021] Figure 4 for Figure 1 The diagram shows a three-dimensional structural diagram of the closed reinforcing bars and related components in the connection structure of a precast bridge pier.

[0022] Figure 5 This is a front view of a connection structure for a prefabricated bridge pier provided in Embodiment 2 of this utility model;

[0023] Figure 6 This is a front view of a connection structure for a precast bridge pier provided in Embodiment 3 of this utility model;

[0024] Figure label:

[0025] 1-First column, 101-First connecting plate;

[0026] 2-Second column, 201-Short column, 202-Second connecting plate;

[0027] 3-Closed reinforcement;

[0028] 4-Strengthening ribs. Detailed Implementation

[0029] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0030] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] Example 1:

[0033] like Figures 1-4 As shown, the connection structure of a precast bridge pier of this utility model includes a first column 1, and a plurality of first connecting plates 101 are evenly installed in a circular array on the top surface of the first column 1.

[0034] The second column 2 has a short column 201 protruding from its bottom surface, and multiple second connecting plates 202 are evenly installed in a circular array on the bottom surface of the short column 201.

[0035] Specifically, both the first column 1 and the second column 2 are pier columns. The inner diameter of the non-closed circumference formed by the first connecting plate 101 is larger than the outer diameter of the non-closed circumference formed by the second connecting plate 202. Multiple first connecting plates 101 and multiple second connecting plates 202 are misaligned and connected, and the second connecting plates 202 close the gap between the first connecting plates 101.

[0036] In this way, when installing the first column 1, the first column 1 is hoisted above the second column 2, and the short column 201 is aligned with the non-closed slot formed by the multiple first connecting plates 101. After alignment, the first column 1 is lowered. After the first column 1 is lowered to a certain height, the short column 201 is inserted into the non-closed slot formed by the multiple first connecting plates 101. Both ends of the multiple second connecting plates 202 are close to the inner side of the adjacent first connecting plates 101. The two ends of the multiple second connecting plates 202 are welded to the close-fitting position of the adjacent first connecting plates 101. The multiple first connecting plates 101 and the multiple second connecting plates 202 form a closed ring, completing the connection between the first column 1 and the second column 2. Thus, the connection process between the first column 1 and the second column 2 is simple, not easily affected by the site environment and climate, and the construction efficiency of the overall project is improved.

[0037] In this embodiment, both the first connecting plate 101 and the second connecting plate 202 are arc-shaped steel plates. As a result, after welding, the first connecting plate 101 and the second connecting plate 202 form a closed ring. The force at the connection between the first connecting plate 101 and the second connecting plate 202 is uniform, which reduces the possibility of structural defects.

[0038] In this embodiment, there are four first connecting plates 101 and four second connecting plates 202. The installation positions of the first connecting plates 101 and the second connecting plates 202 are 90° apart, which makes the installation positions of the first connecting plates 101 and the second connecting plates 202 simple and convenient for pre-embedding.

[0039] In this embodiment, the first connecting plate 101 and the second connecting plate 202 in the same radial direction are fixedly connected by closed steel bars 3. Multiple closed steel bars 3 are arranged in multiple layers, and the closed steel bars 3 in the same layer are parallel to each other. Thus, the opposing first connecting plate 101 and the second connecting plate 202 are respectively formed into a whole, which strengthens the connection between the opposing first connecting plate 101 and the second connecting plate 202.

[0040] In this embodiment, a stiffening rib 4 is fixedly installed on the outer side of the connection between the first connecting plate 101 and the first column 1, thereby strengthening the connection between the first connecting plate 101 and the first column 1 and reducing the possibility of breakage at the connection between the first connecting plate 101 and the first column 1.

[0041] In this embodiment, the outer side of the short column 201 is filled with UHPC concrete after pouring. UHPC concrete has extremely high durability and extremely high mechanical properties, which can improve the strength of the connection between the first column 1 and the second column 2 and reduce the possibility of defects at the connection between the first column 1 and the second column 2.

[0042] In this embodiment, after the first column 1 and the second column 2 are fixedly connected, the connection can be lapped with the extended reinforcing bars. After the lapping is completed, UHPC concrete is poured to fill the gap, so as not to affect the setting of the embedded reinforcing bars.

[0043] Example 2:

[0044] like Figure 5 As shown, the connection structure of the precast bridge pier provided in this embodiment is basically the same as that in Embodiment 1 above. The difference is that the first column 1 is a pile foundation and the second column 2 is a pier column. This can improve the construction efficiency at the connection between the pile foundation and the pier column, increase the applicability of the connection structure, and thus improve the practicality of this utility model.

[0045] Example 3:

[0046] like Figure 6 As shown, the connection structure of the precast bridge pier provided in this embodiment is basically the same as that in Embodiment 1 above. The difference is that the first column 1 is a pier column and the second column 2 is a cap beam. This can improve the construction efficiency at the connection between the pier column and the cap beam, increase the applicability of the connection structure, and thus improve the practicality of this utility model.

[0047] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A connection structure for precast bridge piers, characterized in that, include: The first column (1) has multiple first connecting plates (101) evenly installed in a circular array on its top surface. The second column (2) has a short column (201) protruding from its bottom surface. The bottom surface of the short column (201) is uniformly equipped with multiple second connecting plates (202) in a circular array. The inner diameter of the non-closed circumference formed by the first connecting plate (101) is larger than the outer diameter of the non-closed circumference formed by the second connecting plate (202). The multiple first connecting plates (101) and multiple second connecting plates (202) are misaligned and connected, and the second connecting plate (202) closes the gap between the first connecting plates (101).

2. The connecting structure of a precast bridge pier according to claim 1, wherein Both the first connecting plate (101) and the second connecting plate (202) are arc-shaped steel plates.

3. A precast bridge pier connecting structure according to claim 2, wherein There are four of each of the first connecting plate (101) and the second connecting plate (202), and the installation positions of the first connecting plate (101) and the second connecting plate (202) are 90° apart.

4. A precast bridge pier connecting structure according to claim 3, wherein The first connecting plate (101) and the second connecting plate (202) in the same radial direction are fixedly connected by closed reinforcing bars (3), and multiple closed reinforcing bars (3) are arranged in parallel.

5. A precast bridge pier connecting structure according to claim 4, wherein A stiffening rib (4) is fixedly installed on the outer side of the connection between the first connecting plate (101) and the first column (1).

6. A precast bridge pier connecting structure according to claim 5, wherein The outer side of the short column (201) is filled with UHPC concrete after pouring.

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