Bridge abutment guide plate structure of seamless bridge
By designing the abutment guide structure of the seamless bridge, the overall structure of the swing beam guide plate and the soil behind the abutment is connected, the problem of easy jumping in the rear plate position of the abutment is solved, and a higher driving comfort is achieved, and the effective connection between the bridge and the soil is achieved through the expansion joint.
Patent Information
- Application Number
- CN202421852711.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-01
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-08-01
AI Technical Summary
The rear panel of the abutment is prone to jumping off the vehicle, which affects the comfort of driving.
A seamless bridge abutment lead structure is designed, including a pendulum guide plate, a pillow beam and a transition lead plate. The transverse plate and the vertical plate form an asymmetric T-shaped connection. The vertical plate is located on the side close to the transition lead plate, and expansion joints and compressible elastic materials are provided to achieve the transition connection between the rigid bridge and the soil behind the flexible platform.
By connecting the swing beam guide plate to the overall structure of the soil behind the abutment, the expansion and deformation of the soil is restricted, the occurrence of jumping, the driving comfort is improved, and the effective connection between the bridge and the soil is achieved through the expansion joint.
Smart Images
Figure CN222847191U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of abutments, in particular to an abutment guide plate structure of a seamless bridge. Background Art
[0002] In the structural design of bridges, expansion joints are usually set between the side span beam end of the bridge and the abutment to meet the needs of temperature expansion and deformation. The width of the expansion joint is determined by the structural length of a bridge, the type of superstructure, the thermal expansion coefficient of the material used in the superstructure, and the seasonal temperature change value of the environment in which the bridge is located. However, during the use of bridges with expansion joints set at the rear slab of the abutment, the rear slab of the bridge abutment is prone to jumping, affecting the driving comfort.
[0003] Based on this, a bridge abutment approach plate structure for a seamless bridge is proposed to solve the above problems. Utility Model Content
[0004] The utility model aims to provide a bridge abutment approach plate structure for a seamless bridge, so as to solve the technical problem that during use of a bridge with expansion joints arranged at the rear abutment plate of the bridge abutment proposed in the above-mentioned background technology, the rear abutment plate position of the bridge abutment is prone to vehicle jumping, which affects the driving comfort.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A bridge abutment approach plate structure of a seamless bridge comprises an abutment, a swing beam approach plate, a bolster and a transition approach plate, wherein the swing beam approach plate comprises a transverse plate and a vertical plate, one end of the transverse plate is connected to the abutment, the other end of the transverse plate is connected to the transition approach plate, and the bolster is arranged below the connection between the swing beam approach plate and the transition approach plate;
[0007] The vertical plate is arranged perpendicular to the horizontal plate at one end of the horizontal plate, and the vertical plate is located at one end close to the transition guide plate.
[0008] As a preferred solution, expansion joints are provided at the connection between the transverse plate and the abutment and at the connection between the transverse plate and the transition guide plate.
[0009] As a preferred solution, the expansion joint is filled with compressible elastic material.
[0010] As a preferred solution, a groove is provided on one side of the abutment connected to the transverse plate, and one end of the transverse plate is mounted on the groove.
[0011] As a preferred solution, cushion layers are provided below the swing beam approach plate and the transition approach plate, and the cushion layers include a concrete layer and a crushed stone sand filling layer, and the concrete layer is located above the crushed stone sand filling layer.
[0012] It can be seen from the technical solution provided by the utility model that the abutment approach plate structure of a seamless bridge provided by the utility model has the following beneficial effects compared with the prior art:
[0013] 1. The present application is provided with a swing beam approach plate including a transverse plate and a vertical plate. The vertical plate vertically connected to the transverse plate is located on the side close to the transition approach plate, that is, the vertical plate is located on the side away from the abutment. When a vehicle passes, the vertical plate provides support for the transverse plate, thereby avoiding the occurrence of vehicle jumping and effectively improving driving comfort.
[0014] 2. Expansion joints are set between the abutment and the transverse plate, as well as between the transverse plate and the transition guide plate, to achieve effective transition between the rigid bridge and the soil behind the flexible abutment. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 A schematic cross-sectional view of the overall structure of the abutment approach plate structure of a seamless bridge provided by an embodiment of the utility model;
[0016] Figure 2 The embodiment of the utility model provides Figure 1 A schematic diagram of the structure at the center of the enlarged part A;
[0017] Figure 3 The embodiment of the utility model provides Figure 2 Schematic diagram of the enlarged structure of part B in the middle.
[0018] In the figure: 1. abutment; 11. groove; 2. transverse plate; 3. vertical plate; 4. sleeper beam; 5. transition guide plate; 6. expansion joint; 7. cushion layer; 8. bridge deck pavement. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0020] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0021] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise clearly and specifically defined.
[0023] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0024] See also Figures 1 to 3 The embodiment of the present application provides a bridge abutment approach plate structure of a seamless bridge, including an abutment 1, a swing beam approach plate, a bolster 4 and a transition approach plate 5. The swing beam approach plate includes a transverse plate 2 and a vertical plate 3, one end of the transverse plate 2 is connected to the abutment 1, and the other end of the transverse plate 2 is connected to the transition approach plate 5, and the bolster 4 is arranged below the connection between the swing beam approach plate and the transition approach plate 5; the vertical plate 3 is arranged at one end of the transverse plate 2 perpendicular to the transverse plate 2, and the vertical plate 3 is located at one end close to the transition approach plate 5.
[0025] Furthermore, the transverse plate 2 and the vertical plate 3 are connected in an asymmetric T-shape.
[0026] Working principle and effect: First, one end of the transverse plate 2 in the swing beam approach plate is installed and connected to the abutment 1, and the other end of the transverse plate 2 is connected to the transition approach plate 5 through the pillow beam 4. The vertical plate 3 is inserted into the soil under the transverse plate 2, and the swing beam approach plate and the soil behind the abutment 1 form an integral structure, which limits the extension of the soil under the transverse plate 2 along the driving direction and reduces the vertical deformation of the soil behind the abutment 1. In addition, the vertical plate 3 vertically connected to the transverse plate 2 is located on the side close to the transition approach plate 5, that is, the vertical plate 3 is located on the side away from the abutment 1. When the vehicle passes, the vertical plate 3 provides support for the transverse plate 2, avoids the occurrence of vehicle jumping, and effectively improves the driving comfort.
[0027] In one embodiment, Figure 2 and Figure 3As shown, the connection between the transverse plate 2 and the abutment 1 and the connection between the transverse plate 2 and the transition guide plate 5 are both provided with expansion joints 6. Expansion joints 6 are provided between the abutment 1 and the transverse plate 2, and between the transverse plate 2 and the transition guide plate 5, so as to realize the effective transition connection between the rigid bridge and the soil behind the flexible abutment.
[0028] In one embodiment, a compressible elastic material is filled in the expansion joint 6. The expansion joint 6 should be made of a compressible elastic material with large porosity and good deformation performance, preferably, it can be made of polyurethane material.
[0029] In one embodiment, Figure 1 and Figure 2 As shown, a groove 11 is provided on one side of the abutment 1 where it is connected to the transverse plate 2 , and one end of the transverse plate 2 is mounted on the groove 11 .
[0030] In one embodiment, a cushion layer 7 is provided below the swing beam approach plate and the transition approach plate 5, and the cushion layer 7 includes a concrete layer and a crushed stone sand filling layer, and the concrete layer is located above the crushed stone sand filling layer. A double-layer cushion layer 7 structure including a concrete layer and a crushed stone sand filling layer is provided below the swing beam approach plate and the transition approach plate 5 to provide support for the installation of the swing beam approach plate and the transition approach plate 5 and increase the overall strength.
[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A bridge abutment approach plate structure of a seamless bridge, comprising a bridge abutment (1), characterized in that: It also comprises a swing beam approach plate, a bolster (4) and a transition approach plate (5), wherein the swing beam approach plate comprises a transverse plate (2) and a vertical plate (3), one end of the transverse plate (2) is connected to the abutment (1), the other end of the transverse plate (2) is connected to the transition approach plate (5), and the bolster (4) is arranged below the connection between the swing beam approach plate and the transition approach plate (5); The vertical plate (3) is arranged perpendicular to the transverse plate (2) at one end of the transverse plate (2), and the vertical plate (3) is located at one end close to the transition guide plate (5).
2. The abutment approach plate structure of a seamless bridge according to claim 1 is characterized in that: Expansion joints (6) are provided at the connection between the transverse plate (2) and the abutment (1) and at the connection between the transverse plate (2) and the transition guide plate (5).
3. The abutment approach plate structure of a seamless bridge according to claim 2 is characterized in that: The expansion joint (6) is filled with compressible elastic material.
4. The abutment approach plate structure of a seamless bridge according to claim 1 is characterized in that: A groove (11) is provided on one side of the abutment (1) where it is connected to the transverse plate (2), and one end of the transverse plate (2) is mounted on the groove (11).
5. The abutment approach plate structure of a seamless bridge according to claim 4 is characterized in that: A cushion layer (7) is provided below the swing beam type approach plate and the transition approach plate (5), and the cushion layer (7) comprises a concrete layer and a crushed stone sand filling layer, and the concrete layer is located above the crushed stone sand filling layer.