Box girder support deviation correction structure and method

Abstract

The invention discloses a box girder support deviation correction structure and method, and belongs to the technical field of box girder supports, the box girder support deviation correction structure comprises an upper support plate, a lower support plate and a middle structure, the middle structure is arranged at the center position between the upper support plate and the lower support plate, and a deviation correction mechanism is arranged between the upper support plate and the lower support plate; the deviation correcting mechanism is used for correcting transverse deviation of the support, jacks are arranged on the two sides of the middle structure and used for correcting longitudinal deviation of the support, and limiting assemblies are arranged at the bottoms of the jacks and used for fixing the positions of the jacks. The problem that an existing deviation correcting method has limitation is solved, the adjusting rod drives the deviation correcting gear to rotate by twisting the rotating ring, the rotating deviation correcting gear can drive the upper support plate to transversely move through the meshed toothed rail, and therefore the purpose of correcting transverse deviation of the support is achieved; the purpose of correcting the longitudinal deviation of the support can be achieved through jacking of the jacks located on the two sides of the middle structure.

Description

Technical Field

[0001] The invention relates to the technical field of box girder supports, and in particular to a box girder support deviation correction structure and method. Background Art

[0002] The bridge bearing is an important structural component connecting the superstructure and substructure of the bridge. It is located between the bridge and the pedestal. It can reliably transmit the load and deformation (displacement and rotation) borne by the superstructure of the bridge to the substructure of the bridge. It is an important force transmission device of the bridge. In traditional bridge design, bearings are often needed to support the bridge span structure. However, due to various reasons, such as construction errors and improper installation of bearings, the bearings may be displaced, resulting in the stability of the bridge span structure being affected. The current method to solve the deviation of bridge bearings is to set adjustment gaskets between the bearings and the bridge span structure to correct the bearings. However, the accuracy and reliability of the adjustment gaskets are limited, which makes the deviation correction method have some limitations; therefore, it does not meet the existing needs. In this regard, we propose a box girder bearing deviation correction structure and method. Summary of the invention

[0003] The object of the present invention is to provide a box girder support misalignment correction structure and method, by twisting the ring to make the adjustment rod drive the correction gear to rotate, and the rotating correction gear can drive the upper support plate to move laterally through the meshing rack, so as to achieve the purpose of correcting the lateral misalignment of the support, and by lifting the jacks located on both sides of the middle structure, the purpose of correcting the longitudinal misalignment of the support can be achieved, solving the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a box girder support deviation correction structure, comprising an upper support plate, a lower support plate and a middle structure, wherein the middle structure is arranged at the center position between the upper support plate and the lower support plate, and a correction mechanism is arranged between the upper support plate and the lower support plate, the correction mechanism is used to correct the lateral deviation of the support, jacks are arranged on both sides of the middle structure, the jacks are used to correct the longitudinal deviation of the support, and a limit assembly is arranged at the bottom of the jack, the limit assembly is used to fix the position of the jack.

[0005] Furthermore, the correction mechanism includes a rack, a bracket and a correction gear, the rack is installed on the upper support plate, the bracket is installed on the lower support plate, fixing components are arranged on both sides of the bracket, an inner groove for accommodating the correction gear is opened in the bracket, the correction gear is meshingly connected with the rack, an adjustment rod is arranged on one side of the correction gear, and a turning ring is arranged on the end of the adjustment rod away from the correction gear.

[0006] Furthermore, the fixing assembly includes a fixing plate and a stopper, slots are provided on both sides of the bracket, the fixing plate is arranged on both sides of the bracket through the slots, and a stopper is provided at one end of the fixing plate away from the bracket.

[0007] Furthermore, the limiting assembly includes a fixed block and a movable block, the interiors of the fixed block and the movable block are semicircular, the fixed block is set on the lower support plate, one side of the fixed block is provided with a slot, one side of the movable block is provided with a block adapted to the slot, and the movable block is connected to the fixed block by snapping the block into the slot.

[0008] Furthermore, a cursor is provided on the upper support plate, and a scale line for observing the support deviation is provided on the lower support plate.

[0009] Furthermore, bolts are provided at the four corners of the upper support plate and the lower support plate, and the upper support plate and the lower support plate are provided with connecting hooks, and the upper support plate and the lower support plate are connected by the connecting hooks.

[0010] A box girder support deviation correction method is used to implement a box girder support deviation correction structure, comprising the following steps:

[0011] Step 1: After the support is constructed, if there is a lateral deviation between the upper support plate and the lower support plate, the adjustment rod drives the deviation correction gear to rotate by twisting the ring;

[0012] Step 2: The rotating correction gear drives the upper support plate to move laterally through the meshing gear rail, and the cursor and scale line are observed at the same time. When the upper support plate is reset, the correction is stopped to correct the lateral deviation of the support;

[0013] Step 3: After the support is constructed, if there is a longitudinal deviation between the upper support plate and the lower support plate, fix the jacks on both sides of the middle structure through the limit assembly;

[0014] Step 4: After the top surface of the jack contacts the upper support plate, use inching to start, while continuously observing the cursor and scale line. When the upper support plate is reset, stop moving the jack.

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

[0016] The present invention drives the correcting gear to rotate by twisting the adjusting ring, and the rotating correcting gear can drive the upper support plate to move laterally through the meshing gear rail, and observe the cursor and the scale line at the same time. When the upper support plate is reset, the correcting gear is stopped from rotating, and the fixing components on both sides are used to limit the movement of the correcting gear, thereby achieving the purpose of correcting the lateral deviation of the support, and the jack is fixed to the two sides of the middle structure by the limiting component. When longitudinal deviation occurs between the upper support plate and the lower support plate, the jack is corrected by a point start method, and the cursor and the scale line are continuously observed. When the upper support plate is reset, the jack is stopped from being pushed, thereby achieving the purpose of correcting the longitudinal deviation of the support. By correcting the lateral and longitudinal deviations of the support, the accuracy and reliability of the correction of the support deviation are improved, and the stability of the bridge is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the structure of the deviation correction mechanism of the present invention;

[0019] Figure 3 It is a schematic diagram of the disassembly of the deviation correction mechanism of the present invention;

[0020] Figure 4 It is a schematic diagram of the structure of the fixing assembly of the present invention;

[0021] Figure 5 It is a schematic diagram of the structure of the limiting component of the present invention.

[0022] In the figure: 1. upper support plate; 11. cursor; 2. lower support plate; 21. scale line; 3. middle structure; 4. correction mechanism; 41. rack; 42. bracket; 43. correction gear; 44. adjustment rod; 45. turning ring; 46. fixing assembly; 461. fixing plate; 462. stopper; 5. jack; 6. limit assembly; 61. fixing block; 62. movable block; 63. slot; 64. block; 7. connecting hook; 8. bolt. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] In order to solve the existing method of solving the deviation of bridge bearings, an adjustment shim is set between the bearing and the bridge span structure to correct the bearing, etc. However, the accuracy and reliability of the adjustment shim are limited, which makes the deviation correction method have some limitations. Please refer to Figure 1-Figure 5 , this embodiment provides the following technical solutions:

[0025] A box girder support deviation correction structure comprises an upper support plate 1, a lower support plate 2 and a middle structure 3. The middle structure 3 is arranged at the center position between the upper support plate 1 and the lower support plate 2, and a correction mechanism 4 is arranged between the upper support plate 1 and the lower support plate 2. The correction mechanism 4 is used to correct the lateral deviation of the support. Jacks 5 are arranged on both sides of the middle structure 3. The jacks 5 are used to correct the longitudinal deviation of the support. A limit assembly 6 is arranged at the bottom of the jack 5. The limit assembly 6 is used to fix the position of the jack 5.

[0026] A vernier 11 is provided on the upper support plate 1, and a scale line 21 for observing the support deviation is provided on the lower support plate 2. The vernier 11 and the scale line 21 form a scale. Bolts 8 are provided at the four corners of the upper support plate 1 and the lower support plate 2. The bolts 8 of the upper support plate 1 are upper plate bolts 8, and the bolts 8 of the lower support plate 2 are anchor bolts 8. The upper support plate 1 and the lower support plate 2 are provided with connecting hooks 7, and the upper support plate 1 and the lower support plate 2 are connected by the connecting hooks 7.

[0027] The technical effect of the above content is as follows: the structure of the support is mainly composed of an upper support plate 1, a lower support plate 2, a middle structure 3, bolts 8, a cursor 11, a scale line 21 and a connecting hook 7. A correction mechanism 4 is arranged between the upper support plate 1 and the lower support plate 2, and the correction mechanism 4 can correct the lateral deviation of the support, and jacks 5 are arranged on both sides of the middle structure 3, and the longitudinal deviation of the support can be corrected by the jacks 5. The limit assembly 6 can be used to fix the position of the jack 5 to avoid In order to avoid deviation correction abnormality caused by the position of the jack 5, after the construction of the support is completed, if there is a longitudinal deviation between the upper support plate 1 and the lower support plate 2, the top surface of the jack 5 is in contact with the upper support plate 1, and the jack 5 is started by inching to lift the side where the deviation occurs. At the same time, the cursor 11 and the scale line 21 are continuously observed. When the upper support plate 1 and the lower support plate 2 are reset, the jack 5 is stopped, thereby achieving the purpose of correcting the longitudinal deviation of the support.

[0028] The correcting mechanism 4 includes a rack 41, a bracket 42 and a correcting gear 43. The rack 41 is installed on the upper support plate 1, and the bracket 42 is installed on the lower support plate 2. Fixing components 46 are arranged on both sides of the bracket 42. An inner groove for accommodating the correcting gear 43 is opened in the bracket 42. The correcting gear 43 is meshingly connected with the rack 41. An adjusting rod 44 is arranged on one side of the correcting gear 43. A twisting ring 45 is arranged on the end of the adjusting rod 44 away from the correcting gear 43.

[0029] The technical effect of the above content is: after the construction is completed, there is a lateral deviation between the upper support plate 1 and the lower support plate 2, the anti-falling beam block on the support side is removed, the upper and lower base plates of the support are connected with four connecting hooks 7, and the bolts 8 at the four corners of the lower support plate 2 are removed, and the adjusting rod 44 drives the correction gear 43 to rotate by rotating the twist ring 45, and the rotating correction gear 43 can drive the upper support plate 1 to move laterally through the meshing rack 41. During the correction process, observe the cursor 11 and the scale line 21 at the same time. When the upper support plate 1 and the lower support plate 2 are reset, stop rotating the correction gear 43, and limit it through the fixing components 46 on both sides to prevent the movement of the correction gear 43, thereby achieving the purpose of correcting the lateral deviation of the support.

[0030] The fixing assembly 46 includes a fixing plate 461 and a stopper 462. Slots are provided on both sides of the bracket 42 for the fixing plate 461 to move. The fixing plate 461 is arranged on both sides of the bracket 42 through the slots. A stopper 462 is provided at one end of the fixing plate 461 away from the bracket 42.

[0031] The technical effect of the above content is: when the correcting gear 43 needs to be rotated, the fixing plate 461 is pulled outward along the slot to prevent the fixing plate 461 from affecting the rotation of the correcting gear 43. After the correcting gear 43 stops rotating, the fixing plate 461 is inserted inward along the slot. One end of the fixing plate 461 can be inserted between the tooth grooves of the correcting gear 43, so as to limit the correcting gear 43 and prevent the correcting gear 43 from rotating by itself in a stationary state. The setting of the stop block 462 can prevent the fixing plate 461 from detaching from the bracket 42 when it is pulled out.

[0032] The limiting assembly 6 includes a fixed block 61 and a movable block 62. The interior of the fixed block 61 and the movable block 62 are semicircular. The fixed block 61 is set on the lower support plate 2. A slot 63 is provided on one side of the fixed block 61. A block 64 adapted to the slot 63 is provided on one side of the movable block 62. The movable block 62 is connected to the fixed block 61 by the block 64 being inserted into the slot 63.

[0033] The technical effect of the above content is: the semicircular setting inside the fixed block 61 and the movable block 62 can better fit the outer peripheral surface of the jack 5. When placing the jack 5, first put the jack 5 into the fixed block 61. After the placement is completed, align the card block 64 on the movable block 62 with the card slot 63 and insert it, so that the movable block 62 can be connected to the fixed block 61, so as to fix the bottom of the jack 5. The setting of the fixed block 61 and the movable block 62 can facilitate the placement and removal of the jack 5, making the correction work of the support more flexible.

[0034] A box girder support deviation correction method is used to implement a box girder support deviation correction structure, comprising the following steps:

[0035] Step 1: After the support is constructed, if there is a lateral deviation between the upper support plate 1 and the lower support plate 2, the adjustment rod 44 drives the deviation correction gear 43 to rotate by twisting the ring 45;

[0036] Step 2: The rotating correction gear 43 drives the upper support plate 1 to move laterally through the meshing rack 41, and the cursor 11 and the scale line 21 are observed at the same time. When the upper support plate 1 is reset, the correction is stopped to correct the lateral deviation of the support;

[0037] Step 3: After the support is constructed, if there is a longitudinal deviation between the upper support plate 1 and the lower support plate 2, the jacks 5 are fixed to both sides of the middle structure 3 through the limit assembly 6;

[0038] Step 4: After the top surface of the jack 5 contacts the upper support plate 1, start by inching, and observe the cursor 11 and the scale line 21 continuously. When the upper support plate 1 is reset, stop pushing the jack 5.

[0039] Working principle: The structure of the support is mainly composed of an upper support plate 1, a lower support plate 2, a middle structure 3, bolts 8, a cursor 11, a scale line 21 and a connecting hook 7. After the construction of the support is completed, if there is a longitudinal deviation between the upper support plate 1 and the lower support plate 2, the jacks 5 located on both sides of the middle structure 3 are started by inching to lift the side where the deviation occurs, and the cursor 11 and the scale line 21 are continuously observed. When the upper support plate 1 and the lower support plate 2 are reset, the jacks 5 are stopped, so as to achieve the purpose of correcting the longitudinal deviation of the support. If there is a lateral deviation between the upper support plate 1 and the lower support plate 2, the adjustment is made by rotating the twist ring 45. The rod 44 drives the correcting gear 43 to rotate, and the rotating correcting gear 43 can drive the upper support plate 1 to move laterally through the meshing rack 41. During the correction process, observe the cursor 11 and the scale line 21 at the same time. When the upper support plate 1 and the lower support plate 2 are reset, stop rotating the correcting gear 43, and insert the fixed plates 461 on both sides between the tooth grooves of the correcting gear 43 to limit the correcting gear 43 and prevent the correcting gear 43 from rotating by itself in a stationary state, thereby achieving the purpose of correcting the lateral deviation of the support. By correcting the lateral and longitudinal deviations of the support, the accuracy and reliability of the correction of the support deviation are improved, thereby ensuring the stability of the bridge.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A box girder support deviation correction structure, comprising an upper support plate (1), a lower support plate (2) and a middle structure (3), characterized in that: A middle structure (3) is arranged at the center position between the upper support plate (1) and the lower support plate (2), and a deviation correction mechanism (4) is arranged between the upper support plate (1) and the lower support plate (2), the deviation correction mechanism (4) is used to correct the lateral deviation of the support, jacks (5) are arranged on both sides of the middle structure (3), the jacks (5) are used to correct the longitudinal deviation of the support, and a limit assembly (6) is arranged at the bottom of the jack (5), and the limit assembly (6) is used to fix the position of the jack (5).

2. A box girder support deviation correction structure according to claim 1, characterized in that: The deflection correction mechanism (4) comprises a rack (41), a bracket (42) and a deflection correction gear (43); the rack (41) is mounted on an upper support plate (1); the bracket (42) is mounted on a lower support plate (2); fixing components (46) are arranged on both sides of the bracket (42); an inner groove for accommodating the deflection correction gear (43) is provided in the bracket (42); the deflection correction gear (43) is meshingly connected with the rack (41); an adjustment rod (44) is arranged on one side of the deflection correction gear (43); and a twisting ring (45) is arranged at one end of the adjustment rod (44) away from the deflection correction gear (43).

3. A box girder support deviation correction structure according to claim 2, characterized in that: The fixing assembly (46) comprises a fixing plate (461) and a stopper (462); slots are provided on both sides of the bracket (42); the fixing plate (461) is arranged on both sides of the bracket (42) through the slots; and a stopper (462) is provided at one end of the fixing plate (461) away from the bracket (42).

4. The box girder support deviation correction structure according to claim 1 is characterized in that: The limiting assembly (6) comprises a fixed block (61) and a movable block (62); the interiors of the fixed block (61) and the movable block (62) are semicircular; the fixed block (61) is arranged on the lower support plate (2); a clamping groove (63) is arranged on one side of the fixed block (61); a clamping block (64) adapted to the clamping groove (63) is arranged on one side of the movable block (62); the movable block (62) is connected to the fixed block (61) by the clamping block (64) being clamped into the clamping groove (63).

5. The box girder support deviation correction structure according to claim 1 is characterized in that: The upper support plate (1) is provided with a cursor (11), and the lower support plate (2) is provided with a scale line (21) for observing the support deviation.

6. The box girder support deviation correction structure according to claim 1 is characterized in that: Bolts (8) are provided at the four corners of the upper support plate (1) and the lower support plate (2), and the upper support plate (1) and the lower support plate (2) are provided with connecting hooks (7), and the upper support plate (1) and the lower support plate (2) are connected via the connecting hooks (7).

7. A method for correcting the deviation of a box girder support, used for realizing the box girder support deviation correction structure according to any one of claims 1 to 6, characterized in that: The following steps are involved: Step 1: After the support is constructed, if there is a lateral deviation between the upper support plate (1) and the lower support plate (2), the adjustment rod (44) is driven to rotate the deviation correction gear (43) by twisting the ring (45); Step 2: The rotating correction gear (43) drives the upper support plate (1) to move laterally through the meshing rack (41), and the cursor (11) and the scale line (21) are observed at the same time. When the upper support plate (1) is reset, the correction is stopped to correct the lateral deviation of the support; Step 3: After the support is constructed, if there is a longitudinal deviation between the upper support plate (1) and the lower support plate (2), the jack (5) is fixed to both sides of the middle structure (3) by means of the limit assembly (6); Step 4: After the top surface of the jack (5) contacts the upper support plate (1), start the jack by inching, and observe the cursor (11) and the scale line (21) continuously. When the upper support plate (1) is reset, stop pushing the jack (5).

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