An angularly adjustable standoff leveling device

Abstract

The utility model discloses an angle adjustable support leveling device, including beam body pre -buried steel sheet, support upper steel sheet, leveling steel sheet, upper adjusting bolt and lower adjusting bolt, the leveling steel sheet four corners are equipped with lower adjusting bolt, and support upper steel sheet sets up on the upper surface of leveling steel sheet, and support upper steel sheet is connected through upper adjusting bolt with beam body pre -buried steel sheet, wherein the beam body pre -buried steel sheet is inclined, and the inclination angle is A, and its projection area is greater than the projection area of support upper steel sheet, and the beam bottom pre -buried steel sheet is buried with the precast beam body, and the support upper steel sheet is fixed on the leveling steel sheet, and is leveled through the preset adjusting bolt of leveling steel sheet four corners, and the beam bottom pre -buried steel sheet is adjusted with the length of bolt with support upper steel sheet to stick to the actual longitudinal and transverse slope of beam bottom, and the adjusting bolt of four support upper steel sheet corner parts can fix the position and each direction angle of support upper steel sheet, and reaches the stepless difference adjusting effect.

Description

Technical Field

[0001] This utility model belongs to the field of bridge construction technology, and more specifically, it relates to an angle-adjustable support leveling device. Background Technology

[0002] In the field of bridge engineering, bearings play a crucial role. As key force-transmitting components, they connect the superstructure of a bridge to the piers. Bearings not only bear the loads transmitted from the superstructure, including dead and live loads, but also must adapt to the expansion and contraction and rotation of the beam caused by environmental factors such as temperature changes, concrete shrinkage, and creep, ensuring that the actual stress state of the structure matches the design calculations.

[0003] Over time, bridge bearings may encounter aging and damage during long-term service, which not only affects their functionality but may also threaten the safety and stability of the entire bridge structure. Therefore, regular inspection, maintenance, and replacement when necessary, of bridge bearings have become an indispensable part of bridge health management.

[0004] During the replacement of bearings, the leveling between the beam bottom and the bearing is particularly crucial. Traditional construction methods often use steel plates for leveling, whose top surface needs to adapt to the longitudinal and transverse slopes of the beam bottom, and whose bottom surface needs to be level to achieve a fit within the tolerance range. This requires predicting and cutting based on the actual longitudinal and transverse slopes of the beam bottom, a process that is not only cumbersome but also quite difficult. Therefore, developing a bearing leveling device with a reasonable structure, simple operation, and high leveling accuracy is of great significance for improving bridge construction quality, extending bridge service life, and reducing maintenance costs. Utility Model Content

[0005] To address the problem that traditional methods of leveling bridge bearings involve inserting steel plates, which require predicting the actual longitudinal and transverse slopes of the beam bottom before cutting and processing, resulting in a cumbersome and difficult construction process, this invention provides an angle-adjustable bearing leveling device.

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

[0007] An angle-adjustable support leveling device includes a beam-embedded steel plate, a support upper steel plate, a leveling steel plate, an upper adjusting bolt, and a lower adjusting bolt. The leveling steel plate is provided with lower adjusting bolts at its four corners. The support upper steel plate is placed on the upper surface of the leveling steel plate and is connected to the beam-embedded steel plate by the upper adjusting bolt. The beam-embedded steel plate is inclined at an angle A, and its projected area is larger than that of the support upper steel plate.

[0008] With the above settings: the pre-embedded steel plate of the beam is designed to be inclined, and its projected area is larger than the projected area of ​​the steel plate (3) on the support, so as to adapt to the longitudinal and transverse slope of the bottom of the beam.

[0009] This utility model discloses an angle-adjustable support leveling device, wherein structural adhesive is injected between the pre-embedded steel plate of the beam and the steel plate on the support.

[0010] With the above setup, structural adhesive is used to fill the gap between the steel plate on the support and the pre-embedded steel plate in the beam, thereby enhancing the stability and durability of the overall structure.

[0011] This utility model discloses an angle-adjustable support leveling device, wherein the upper adjusting bolt passes through the upper steel plate of the support and the leveling steel plate.

[0012] This utility model discloses an angle-adjustable support leveling device. The upper adjusting bolt is tightened by a nut, and the lower adjusting bolt is composed of a bolt rod and a sleeve. The sleeve is tightened by rotating a handle.

[0013] With the above setup: the leveling steel plate is fixed below the upper steel plate of the support, used to adjust the angle of the upper steel plate (3) of the support to adapt to different beam bottom slopes. The lower adjusting bolts are set at the four corners of the leveling steel plate, and the angle of the leveling steel plate can be precisely adjusted by rotation.

[0014] This utility model discloses an angle-adjustable support leveling device, wherein the inclination angle A of the pre-embedded steel plate in the beam is 15° to 75°.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] This utility model relates to an adjustable support wedge-shaped leveling device. A pre-embedded steel plate is embedded in the bottom of the beam and embedded in the precast beam. The upper steel plate of the support is fixed on the leveling steel plate. Leveling is achieved by adjusting bolts pre-set at the four corners of the leveling steel plate. The pre-embedded steel plate at the bottom of the beam and the upper steel plate of the support are adjusted by the length of the bolts to fit the actual longitudinal and transverse slope of the bottom of the beam. The four adjusting bolts at the corners of the upper steel plate of the support can fix the position and angle of the upper steel plate of the support in each direction, and achieve a zero-gradient adjustment effect.

[0017] This utility model's adjustable bearing wedge-shaped leveling device simplifies the construction process and reduces difficulty by fixing the position of the steel plate on the bearing with adjusting bolts and assisting in adjusting the multi-directional fit of the steel plate on the bearing. It also achieves a zero-gradient adjustment effect. This wedge-shaped block construction method is not only suitable for replacing bridge bearing systems during operation but also for constructing bearing systems for newly built bridges. When using this method for new bridge construction, the adaptive zero-gradient adjustment of the adjusting bolts can eliminate construction errors.

[0018] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0019] The following is a brief explanation of the contents of each of the accompanying drawings and the markings in the drawings:

[0020] Figure 1 This is a schematic diagram of the present invention;

[0021] Figure 2 This is a top view of the present invention;

[0022] The markings in the diagram are: 1. Embedded steel plate in the beam; 2. Upper adjusting bolt; 3. Upper steel plate of the support; 4. Leveling steel plate; 5. Lower adjusting bolt. Detailed Implementation

[0023] The following description, with reference to the accompanying drawings, further details the specific implementation methods of this utility model, including the shape and structure of each component, the relative positions and connections between the parts, the function and working principle of each part, the manufacturing process, and the operation and use methods, so as to help those skilled in the art to have a more complete, accurate, and in-depth understanding of the utility model concept and technical solution.

[0024] Depend on Figure 1 and Figure 2 An angle-adjustable support leveling device is shown, comprising a beam-embedded steel plate 1, a support upper steel plate 3, a leveling steel plate 4, upper adjusting bolts 2 and lower adjusting bolts 5. Lower adjusting bolts 5 are located at the four corners of the leveling steel plate 4. The support upper steel plate 3 is positioned on the upper surface of the leveling steel plate 4 and is connected to the beam-embedded steel plate 1 via the upper adjusting bolts 2. The beam-embedded steel plate 1 is inclined at an angle A, and its projected area is larger than that of the support upper steel plate 3. Structural adhesive is injected between the beam-embedded steel plate 1 and the support upper steel plate 3. The upper adjusting bolts 2 pass through the support upper steel plate 3 and the leveling steel plate 4. The upper adjusting bolts 2 are tightened using nuts, and the lower adjusting bolts 5 consist of a bolt rod and a sleeve, with the sleeve tightened using a rotating handle. The inclination angle A of the beam-embedded steel plate 1 ranges from 15° to 75°.

[0025] Working principle and method

[0026] (1) Measure the slope of the bottom of the beam and determine the inclination angle A of the pre-embedded steel plate 1 in the beam; prefabricate the pre-embedded steel plate 1 with the inclination angle in the beam and pre-embed it to the bottom of the beam (new bridge) or install it after removing the old support (change of working condition); check the integrity of the leveling device components (bolt flexibility, steel plate flatness).

[0027] (2) Install hydraulic jacks at the position adjacent to the support to be replaced, and simultaneously lift the beam until the support is free. The lifting height must be greater than the height of the old support plus the thickness of the new device; install temporary supports to ensure construction safety.

[0028] (3) Remove the old support connection components; clean the concrete surface at the bottom of the beam to ensure that the installation surface of the embedded steel plate is flat.

[0029] (4) Place the leveling steel plate 4 (with the lower adjusting bolt 5 already installed) on the pier support surface; place the upper steel plate 3 of the support above the leveling steel plate 4; and initially connect the pre-embedded steel plate 1 of the beam (pre-embedded in the bottom of the beam) to the upper steel plate 3 of the support through the upper adjusting bolt 2 (do not lock it yet).

[0030] (5) Rotate the sleeves of the lower adjusting bolts 5 at the four corners of the leveling steel plate 4 to make the leveling steel plate 4 initially level (calibrate with a level); simultaneously tighten the nuts of the upper adjusting bolts 2 at the four corners to push the upper steel plate 3 of the support to move along the Z-axis until it is completely in contact with the pre-embedded steel plate 1 of the beam; during the process, monitor the slope data in real time to ensure that the longitudinal / transverse slopes match; inject epoxy structural adhesive from the edge of the upper steel plate 3 of the support to fill the gap between it and the pre-embedded steel plate 1 of the beam; tighten all bolts to fix the position and angle of the upper steel plate 3 of the support.

[0031] (6) Gradually unload the jacks to transfer the weight of the beam to the new support; check the stress state of the support to ensure that the support is not eccentrically compressed or has no gaps; check the gap between the bottom of the beam and the steel plate on the support.

[0032] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. An angle-adjustable support leveling device, comprising a beam-embedded steel plate, a support upper steel plate, a leveling steel plate, an upper adjusting bolt, and a lower adjusting bolt, characterized in that, The leveling steel plate is provided with lower adjusting bolts at its four corners, and the upper steel plate of the support is set on the upper surface of the leveling steel plate. The upper steel plate of the support is connected to the pre-embedded steel plate of the beam through upper adjusting bolts. The pre-embedded steel plate of the beam is inclined at an angle of A, and its projected area is larger than that of the upper steel plate of the support.

2. The adjustable support leveling device according to claim 1, characterized in that, Structural adhesive is injected between the pre-embedded steel plate of the beam and the steel plate of the support.

3. The angle-adjustable support leveling device according to claim 1, characterized in that, The upper adjusting bolt passes through the upper steel plate of the support and the leveling steel plate.

4. The angle-adjustable support leveling device according to claim 1, characterized in that, The upper adjusting bolt is tightened with a nut, and the lower adjusting bolt consists of a bolt rod and a sleeve, with the sleeve being tightened using a rotating handle.

5. The angle-adjustable support leveling device according to claim 1, characterized in that, The inclination angle A of the pre-embedded steel plate in the beam is 15° to 75°.

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