Temporary bridge buttress position adjusting and limiting device

Abstract

The utility model discloses a position adjusting and limiting device for a temporary buttress of a bridge. The position adjusting and limiting device comprises a main beam installed on a foundation platform, the temporary buttress installed on the main beam and a limiting plate connected between the temporary buttress and the main beam. The limiting plates are arranged on the two sides of the temporary buttress, and bracket structures are arranged at the side edge positions of the two ends of the temporary buttress. The limiting plate is of an L-shaped structure and comprises a top plate and a clamping plate, the top plate abuts against the two sides of the temporary buttress, and the clamping plate is connected with the main beam through a limiting mechanism. According to the utility model, the position of the temporary buttress can be adjusted, and the temporary buttress can be limited and fixed, so that a good adjusting effect is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing technology, specifically relating to a bridge temporary support pier adjustment and limiting device. Background Technology

[0002] Large-span steel-concrete composite beams are a structural form that combines steel and concrete, two materials with different properties, and has significant structural advantages and broad application prospects. Specifically, large-span steel-concrete composite beams connect welded or rolled steel beams with concrete flanges through shear connectors, forming a composite beam bridge structure that jointly bears lateral loads. This structural form fully considers the material's stress requirements, placing high-compressive-strength concrete in the compression zone of the section and high-tensile-strength steel in the tension zone, thus achieving full utilization of material properties.

[0003] In existing technologies, the main installation methods for long-span steel beams are hoisting or jacking. Hoisting involves lifting the beam segment by segment onto temporary piers and pier supports, then connecting the segments and applying prestress, finally removing the temporary piers. This method is suitable for construction sites with flat, firm surfaces and suitable hoisting conditions. Jacking involves assembling the beam segment by segment at the bridgehead, using jacks to longitudinally push it into place via temporary sliding supports on the tops of each pier. This method is suitable for river-crossing bridges without cofferdams and for construction in mountainous areas.

[0004] In the jacking method, on the one hand, the temporary supports are not installed properly and need to be temporarily adjusted to avoid uneven stress on the temporary supports. On the other hand, the temporary supports are prone to overturning due to lateral forces, so they need to be effectively restrained. Utility Model Content

[0005] The purpose of this utility model is to provide a temporary bridge support adjustment and limiting device, which can adjust the orientation and limit and fix the temporary support to achieve a good adjustment effect.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A bridge temporary pier adjustment and limiting device includes a main beam installed on a foundation platform, a temporary pier installed on the main beam, and a limiting plate connected between the temporary pier and the main beam. The limiting plate is set on both sides of the temporary pier, and a corbel structure is set on the side of both ends of the temporary pier. The limiting plate is an L-shaped structure, including a top plate and a snap-fit ​​plate. The top plate abuts against both sides of the temporary pier, and the snap-fit ​​plate is connected to the main beam through a limiting mechanism.

[0008] Furthermore, the snap-fit ​​plate is provided with multiple connection holes, and the limiting mechanism includes multiple connecting screws, each connecting screw passing through a connection hole and connected to a snap-fit ​​base at the bottom.

[0009] Furthermore, a limiting head is provided at one end of the connecting screw, and the limiting head is locked onto the connecting hole.

[0010] Furthermore, a flat washer is provided between the limiting head and the connecting hole.

[0011] Furthermore, the snap-fit ​​chassis is threadedly connected to the bottom of the connecting screw and abuts against the main beam.

[0012] Furthermore, the corbel structure includes a load-bearing plate fixed to a temporary support and a jack connected to the load-bearing plate.

[0013] Compared with the prior art, the advantages of this utility model are as follows: This utility model adopts a corbel structure on both sides of the temporary support for adjusting the position of the temporary support, and a limiting mechanism on both sides of the temporary support for strengthening and fixing the temporary support. It can adjust the temporary support to a suitable position of the main beam and fix it through limiting. During the jacking operation, it can avoid problems such as the temporary support overturning under force and enhance the stability of its structure. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of the bridge temporary support adjustment and limiting device provided by this utility model. Figure 1 .

[0016] Figure 2 This is a schematic diagram of the structure of the bridge temporary support adjustment and limiting device provided by this utility model. Figure 2 .

[0017] Figure label:

[0018] 1. Main beam; 2. Corbel structure; 3. Limiting plate; 4. Connecting hole; 5. Jack; 6. Temporary support; 7. Connecting bolt; 8. Snap-fit ​​chassis; 9. Limiting head; 10. Flat washer. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of this utility model.

[0022] Furthermore, the terms "first," "second," and "third" are used only for distinguishing descriptions and should not be interpreted as indicating or implying relative importance.

[0023] Furthermore, the use of terms such as "horizontal," "vertical," and "suspended" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0026] like Figures 1-2As shown, a bridge temporary pier adjustment and limiting device includes a main beam 1 installed on a foundation platform, a temporary pier 6 installed on the main beam 1, and a limiting plate 3 connecting the temporary pier 6 and the main beam 1. The limiting plate 3 is set on both sides of the temporary pier 6, and a corbel structure 2 is set on the side of both ends of the temporary pier 6. The limiting plate 3 is an L-shaped structure, including a top plate and a snap-fit ​​plate. The top plate abuts against both sides of the temporary pier 6, and the snap-fit ​​plate is connected to the main beam 1 through a limiting mechanism.

[0027] Compared to existing technologies, where temporary supports 6 are typically installed longitudinally along the main beam 1 or laterally perpendicular to it, the latter has limited contact area with the main beam 1, requiring bolts and steel plates to ensure stability. Furthermore, these temporary supports are usually installed via hoisting, which can lead to misalignment, bolt hole deviations, and difficulty in bolt insertion, necessitating subsequent, cumbersome adjustments. In this application, corbel structures 2 are installed at both ends of the temporary support 6. When aligned longitudinally with the main beam 1, these corbels can be used to lift the temporary support 6 against the foundation platform, effectively achieving proper positioning. Furthermore, this utility model employs limiting plates 3 on both sides of the temporary support 6, with limiting structures on the limiting plates 3. The connecting screws 7 of the limiting structures are sequentially distributed at different positions on the limiting plates 3, and are engaged by the locking base 8 against the bottom of the I-beam of the main beam 1. Even with a lateral arrangement, a fixed limiting function can be achieved, making the structure more flexible.

[0028] The snap-fit ​​plate is provided with multiple connection holes 4, and the limiting mechanism includes multiple connecting screws 7. Each connecting screw 7 passes through the connection hole 4 and is connected to a snap-fit ​​base plate 8 at its bottom. By passing the connecting screws through the connection holes 4 respectively, and with the snap-fit ​​base plate 8 connected to the bottom of the connecting screw 7 abutting against the main beam 1, the snap-fit ​​limiting is completed, thus preventing the temporary support 6 from overturning under stress.

[0029] One end of the connecting screw 7 is provided with a limiting head 9, which is engaged with the connecting hole 4. A flat washer 10 is provided between the limiting head and the connecting hole 4. The locking base 8 is threadedly connected to the bottom of the connecting screw 7 and abuts against the main beam 1.

[0030] The bracket structure 2 includes a load-bearing plate fixed to the temporary support 6 and jacks 5 connected to the load-bearing plate. By setting bracket structures 2 on both sides of the temporary support 6, the temporary support 6 can be lifted and its position adjusted when the jacks 5 of the bracket structure can contact the foundation platform. In case of improper hoisting, the position of the temporary support 6 can be adjusted by the alternating lifting force of multiple brackets, thereby reducing the problem of repeated hoisting.

[0031] Specifically, when using it, the temporary support 6 is installed longitudinally along the direction of the main beam 1, or laterally perpendicular to the direction of the main beam 1, depending on the specific construction requirements.

[0032] When arranging the structure longitudinally, the temporary support 6 is positioned along the main beam 1. The corbels of the temporary support 6 must be placed within the range of the main beam 1 to utilize the corbel adjustment function. However, regardless of whether the arrangement is longitudinal or transverse, the corbel adjustment function cannot be used when a load-bearing platform is lacking. In such cases, it is advisable not to pre-install the corbels before hoisting the temporary support 6 to reduce costs.

[0033] When using the limiting function, in a longitudinal arrangement, each locking base plate 8 of the limiting plate 3 can be rotated until it abuts against the main beam 1, clamping the main beam 1 between the locking base plate 8 and the limiting plate 3 for effective fixation. Alternatively, only the locking base plates 8 at both ends of the temporary support 6 can be fixed. In a transverse arrangement, the locking base plates 8 at the intersection of the temporary support 6 and the main beam 1 are used for fixation. This fixing method eliminates the need to consider the bolt hole positions, making installation more convenient.

[0034] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A temporary bridge pier adjustment and limiting device, characterized in that: It includes a main beam (1) installed on a foundation platform, temporary supports (6) installed on the main beam (1), and a limiting plate (3) connecting the temporary supports (6) and the main beam (1); the limiting plate (3) is set on both sides of the temporary supports (6), and a corbel structure (2) is set on the side of both ends of the temporary supports (6); the limiting plate (3) is an L-shaped structure, including a top plate and a snap-fit ​​plate, the top plate abuts against both sides of the temporary supports (6), and the snap-fit ​​plate is connected to the main beam (1) through a limiting mechanism.

2. The bridge temporary support adjustment and limiting device according to claim 1, characterized in that: The snap-fit ​​plate is provided with multiple connection holes (4), and the limiting mechanism includes multiple connection screws (7). Each connection screw (7) passes through the connection hole (4) and is connected to a snap-fit ​​base plate (8) at the bottom.

3. The bridge temporary support adjustment and limiting device according to claim 2, characterized in that: One end of the connecting screw (7) is provided with a limiting head (9), and the limiting head (9) is locked on the connecting hole (4).

4. The bridge temporary support adjustment and limiting device according to claim 3, characterized in that: A flat washer (10) is provided between the limiting head (9) and the connecting hole (4).

5. The bridge temporary support adjustment and limiting device according to claim 2, characterized in that: The snap-fit ​​chassis (8) is threaded to the bottom of the connecting screw (7) and abuts against the main beam (1).

6. The bridge temporary support adjustment and limiting device according to claim 1, characterized in that: The corbel structure (2) includes a load-bearing plate fixed on a temporary support (6) and a jack (5) connected to the load-bearing plate.

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