Continuous rigid frame bridge body downwarping prevention and reinforcement device

Abstract

The invention relates to the technical field of bridge construction, in particular to a continuous rigid frame bridge body downwarping prevention and reinforcement device which comprises a continuous rigid frame bridge, an auxiliary supporting pier is arranged at the midspan position of the continuous rigid frame bridge, and a hydraulic supporting mechanism is arranged at the top end of the auxiliary supporting pier. A pressure sensor is arranged at the top end of the hydraulic supporting mechanism, the pressure sensor abuts against the bottom end of the continuous rigid frame bridge and is used for monitoring the self-weight down-warping stress of a beam body, the hydraulic supporting mechanism comprises a threaded sleeve, and a prestress supporting assembly is arranged at the top end of the threaded sleeve. And the prestress supporting assembly abuts against and supports the bottom end of the continuous rigid frame bridge and is used for counteracting the down-warping acting force generated after the load of the bridge, and the problems that an existing bridge down-warping reinforcing device cannot adjust and support in real time according to the load change of the bridge, so that the down-warping force of the bridge cannot be effectively counteracted, and the service life of the bridge is prolonged are solved. And therefore, the bridge still has a down-warping risk.

Description

Technical Field

[0001] The invention relates to the technical field of bridge construction, and more specifically to a continuous rigid frame bridge body deflection prevention and reinforcement device. Background Art

[0002] In the field of bridge construction technology, continuous rigid frame bridges, as an important form of bridge structure, are widely used in various roads and transportation facilities. However, with the increase in bridge usage time and traffic volume, continuous rigid frame bridges often have deflection problems, which not only affects the normal use of the bridge, but also may pose a potential threat to the safety of the bridge.

[0003] In order to solve the problem of continuous rigid frame bridge body deflection, a variety of reinforcement devices and methods have been proposed. However, these reinforcement devices and methods still have some shortcomings in practical application. For example, some reinforcement devices only use simple supporting structures to resist the deflection of the bridge, but their supporting effect and stability are often difficult to guarantee. In addition, some reinforcement methods require large-scale reconstruction and construction of the bridge, which is not only costly, but may also have an adverse effect on the overall structure of the bridge.

[0004] In addition, some existing reinforcement devices often ignore the dynamic changes of bridges under load during their design and use. When the bridge is open to traffic or under the action of other external forces, its load changes continuously, and traditional reinforcement devices are often unable to make real-time adjustments and support according to such changes. Therefore, when the bridge load changes, these reinforcement devices may not be able to effectively offset the deflection force of the bridge, resulting in the risk of the bridge still deflecting. In order to solve the above problems, a continuous rigid frame bridge body deflection prevention and reinforcement device is proposed. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In response to the problems existing in the prior art, the present invention provides a continuous rigid frame bridge body deflection prevention and reinforcement device to solve the problem mentioned in the background technology that the current bridge deflection reinforcement device cannot adjust the support in real time according to the changes in the bridge load, resulting in the inability to effectively offset the deflection force of the bridge, thereby causing the bridge to still have the risk of deflection.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a continuous rigid frame bridge body deflection prevention and reinforcement device, comprising a continuous rigid frame bridge, an auxiliary support pier is arranged at the mid-span position of the continuous rigid frame bridge, and a hydraulic support mechanism is arranged on the top of the auxiliary support pier, a pressure sensor is arranged on the top of the hydraulic support mechanism, and the pressure sensor is in contact with the bottom end of the continuous rigid frame bridge, and is used to monitor the self-weight deflection stress of the beam body, a threaded sleeve is arranged on the hydraulic support mechanism, and a prestressed support assembly is arranged on the top of the threaded sleeve, and the prestressed support assembly is in contact with the bottom end of the continuous rigid frame bridge to offset the deflection force generated after the bridge is loaded.

[0009] The present invention is further configured such that the auxiliary support pier is Y-shaped, and the Y-shaped top of the auxiliary support pier is provided with an embedded screw, and the hydraulic support mechanism is fixedly installed on the top of the auxiliary support pier by matching and locking nuts and embedded screws.

[0010] The present invention is further configured such that the hydraulic support mechanism includes a mounting plate docked with the embedded screw rod, a telescopic column arranged at the top of the mounting plate, and a hydraulic column sleeved on an end of the telescopic column away from the mounting plate.

[0011] The present invention is further configured such that a notch for installing a pressure sensor is provided at one end of the hydraulic column away from the telescopic column, and the pressure sensor is installed in the notch on the hydraulic column so that the top end protrudes from the top end of the hydraulic column.

[0012] The present invention is further configured such that an external thread is provided on the circumferential outer wall of the hydraulic column, and the external thread is threadedly connected to the threaded sleeve, a tooth block is provided in an annular array outside the circumference of the threaded sleeve, a driving motor is fixedly installed on both sides of the continuous rigid frame bridge span, and a gear is fixedly installed on the output shaft of the driving motor, and the gear and the tooth block are meshing.

[0013] The present invention is further configured such that the prestressed support assembly includes a prestressed gasket arranged at the top end of the threaded sleeve, and the prestressed gasket is composed of two semi-annular spring steel gaskets.

[0014] The present invention is further configured such that a wave protrusion is provided in an annular array on the prestressed gasket, and a high end of the wave protrusion thickness is higher than the top end of the pressure sensor.

[0015] The present invention is further configured such that a clamping strip is provided at the top end of the threaded sleeve, and the clamping strip is arranged in a ring shape, a clamping groove is opened at the bottom end of the prestressed gasket, and the clamping groove and the clamping strip are matched and clamped.

[0016] The present invention is further configured such that a plurality of ratchet grooves are provided in an annular array on the clamping strip, a ratchet is provided at one end of the ratchet groove, and a slope is provided at the other end of the ratchet groove, and a plurality of clamping blocks matching and clamping with the ratchet are provided inside the clamping groove.

[0017] The present invention is further configured such that the inclined engaging direction of the ratchet teeth is the same as the direction in which the threaded sleeve rotates upward.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the present invention provides a continuous rigid frame bridge body deflection prevention and reinforcement device, which has the following beneficial effects:

[0020] 1. The present invention arranges auxiliary support piers, hydraulic support mechanisms and pressure sensors. In the initial state, the hydraulic support mechanism exerts an upward support force on the bottom of the bridge in the middle of the continuous rigid frame bridge span, and the support stress is the same as the downward winding force of the bridge's own weight, ensuring that when the continuous rigid frame bridge has no traffic load, the deflection caused by the bridge's own gravity can be offset by the auxiliary support piers and the adjusted hydraulic support mechanism, thereby reinforcing the strength of the mid-span part of the bridge and reducing the occurrence of bridge deflection. At the same time, when the auxiliary support piers sink due to geological reasons, the hydraulic support mechanism can be adjusted to fill the gap of the sinking auxiliary support piers, thereby ensuring deflection prevention and control support for the mid-span position of the continuous rigid frame bridge.

[0021] 2. When the continuous rigid frame bridge is opened to traffic or other external forces generate fluctuating loads on the bridge, the present invention can monitor the value of the pressure sensor through the background control center, control the driving motor through the meshing of the gears and the gear blocks, and drive the threaded sleeve to move up and down to adjust the prestress to be reset after the prestressed support assembly is squeezed, thereby offsetting the load deflection force on the bridge caused by the opening of traffic or other external forces, so that the self-weight deflection of the bridge and the upward supporting force of the auxiliary support piers and the hydraulic support mechanism are always maintained in a parallel state, thereby reducing the occurrence of bridge deflection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the continuous rigid frame bridge body deflection prevention and reinforcement device.

[0023] Figure 2 This is a structural schematic diagram of the auxiliary support pier and hydraulic support mechanism of the continuous rigid frame bridge body deflection prevention and reinforcement device.

[0024] Figure 3 Schematic diagram of the exploded structure of the hydraulic support mechanism and prestressed support assembly of the continuous rigid frame bridge body deflection prevention and reinforcement device.

[0025] Figure 4 for Figure 3 Enlarged structural diagram at A in the middle.

[0026] Figure 5 This is a schematic diagram of the structure of the prestressed support components of the continuous rigid frame bridge body deflection prevention and reinforcement device.

[0027] Figure 6 This is a schematic diagram of the structure of the ratchet connection between the block on the prestressed gasket and the clamping strip on the continuous rigid frame bridge body deflection prevention and reinforcement device.

[0028] In the figure: 1. continuous rigid frame bridge; 2. auxiliary support pier; 201. embedded screw; 3. hydraulic support mechanism; 301. mounting plate; 302. telescopic column; 303. hydraulic column; 304. external thread; 305. tooth block; 4. pressure sensor; 5. threaded sleeve; 501. clamping strip; 502. ratchet groove; 503. ratchet; 504. slope; 6. prestressed support assembly; 601. prestressed gasket; 602. wave protrusion; 603. clamping groove; 604. clamping block; 7. drive motor; 8. gear. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0031] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0032] For examples, see Figure 1 - Figure 6 A continuous rigid frame bridge body deflection prevention and reinforcement device, comprising an auxiliary support pier 2 arranged at the mid-span position of the continuous rigid frame bridge 1, and a hydraulic support mechanism 3 is arranged at the top of the auxiliary support pier 2, and a pressure sensor 4 is arranged at the top of the hydraulic support mechanism 3, and the pressure sensor 4 is against the bottom end of the continuous rigid frame bridge 1, and is used to monitor the self-weight deflection stress of the beam body;

[0033] A threaded sleeve 5 is provided on the hydraulic support mechanism 3, and a prestressed support component 6 is provided on the top of the threaded sleeve 5. The prestressed support component 6 contacts and supports the bottom end of the continuous rigid frame bridge 1 to offset the deflection force generated by the bridge load.

[0034] The auxiliary support pier 2 can support the span of the continuous rigid frame bridge 1. When the geology sinks, it can be adjusted through the hydraulic support mechanism 3 so that the span of the continuous rigid frame bridge 1 can always be supported. The deflection of the bridge can be monitored in real time by setting the pressure sensor 4.

[0035] The auxiliary support pier 2 is arranged in a Y shape, and the Y-shaped top of the auxiliary support pier 2 is provided with an embedded screw 201. The hydraulic support mechanism 3 is fixedly installed on the top of the auxiliary support pier 2 by matching and locking the nut and the embedded screw 201. The hydraulic support mechanism 3 is symmetrically arranged on the top of the auxiliary support pier 2, and is used to support both sides of the mid-span of the continuous rigid frame bridge 1.

[0036] The hydraulic support mechanism 3 includes a mounting plate 301 docked with the embedded screw rod 201, and also includes a telescopic column 302 arranged on the top of the mounting plate 301, and a hydraulic column 303 sleeved on the end of the telescopic column 302 away from the mounting plate 301. The mounting plate 301 is a square steel plate, and the four corners of the mounting plate 301 are provided with through holes matching the embedded screw rod 201. When the hydraulic support mechanism 3 is fixedly installed with the auxiliary support pier 2, the through holes on the mounting plate 301 are aligned with the embedded screw rod 201 on the auxiliary support pier 2, and then the installation is completed by tightening it with bolts. During installation, the hydraulic support mechanism 3 needs to be in a retracted state. After installation, the hydraulic support mechanism 3 is started. Since the telescopic column 302 is fixedly connected to the auxiliary support pier 2, after the hydraulic support mechanism 3 is started, the reaction force will push the hydraulic column 303 to move upward, thereby resisting the bottom of the bridge in the middle span of the continuous rigid frame bridge 1.

[0037] It should be noted that before the hydraulic column 303 moves upward and thus contacts the bottom of the bridge in the middle span of the continuous rigid frame bridge 1, it is necessary to first use a device for detecting the deflection of the bridge, that is, the strength of the bridge deflection, to detect the bridge, and then control the upward movement distance of the hydraulic column 303 according to the detected value, so that the hydraulic column 303 has an upward supporting force on the bottom of the bridge in the middle span of the continuous rigid frame bridge 1, and the supporting force is the pre-support stress on the bridge. The supporting stress is the same as the deflection force of the bridge's own weight, that is, the value detected by the detection equipment of the deflection force of the bridge, which ensures that when the continuous rigid frame bridge 1 is in the absence of traffic load, the deflection caused by the bridge's own gravity can be offset by the auxiliary support piers 2 and the adjusted hydraulic support mechanism 3, thereby reinforcing the strength of the mid-span part of the bridge and reducing the occurrence of deflection of the bridge.

[0038] A slot for installing a pressure sensor 4 is provided at one end of the hydraulic column 303 away from the telescopic column 302, and the top of the pressure sensor 4 protrudes beyond the top of the hydraulic column 303 after being installed in the slot on the hydraulic column 303, so that when the hydraulic support mechanism 3 is adjusted for support after installation, the pressure sensor 4 can receive the pressure signal in real time under the push and squeeze of the hydraulic column 303.

[0039] The outer wall of the hydraulic column 303 is provided with an external thread 304, and the external thread 304 is threadedly connected to the threaded sleeve 5, and a tooth block 305 is provided in an annular array outside the circumference of the threaded sleeve 5;

[0040] A driving motor 7 is fixedly installed on both sides of the mid-span of the continuous rigid frame bridge 1, and a gear 8 is fixedly installed on the output shaft of the driving motor 7. The gear 8 is meshed with the tooth block 305. The pressure sensor 4 and the driving motor 7 are connected to the background control center through a wireless network. The driving motor 7 drives the gear 8 to rotate, thereby driving the threaded sleeve 5 provided with a ring array tooth block 305 to rotate. The rotating threaded sleeve 5 moves upward or downward through the external thread 304 on the outer wall of the hydraulic column 303.

[0041] Specifically, after the continuous rigid frame bridge 1 is opened to traffic or other external forces generate loads on the bridge, the driving motor 7 drives the threaded sleeve 5 to move upward through the meshing of the gear 8 and the tooth block 305, thereby pushing the prestressed support component 6 to be extruded, so that the prestressed support component 6 generates prestress to be reset after extrusion deformation, thereby offsetting the load deflection force on the bridge caused by the opening of traffic or other external forces, so that the self-weight deflection of the bridge and the upward supporting force of the auxiliary support pier 2 and the hydraulic support mechanism 3 are always maintained in a parallel state, thereby reducing the occurrence of bridge deflection.

[0042] Furthermore, because the load on the continuous rigid frame bridge 1 caused by traffic or other external forces is continuously changing, in order to keep the self-weight deflection of the bridge and the upward supporting force of the auxiliary support pier 2 and the hydraulic support mechanism 3 always in a balanced state, the drive motor 7 needs to operate continuously as described in the previous paragraph, which leads to large energy consumption and wear of the motor. In order to solve this problem, we need to set a threshold value for it. In the initial state, the auxiliary support pier 2 and the hydraulic support mechanism 3 provide upward support to the span of the continuous rigid frame bridge 1 and offset the self-weight deflection stress of the bridge. The pressure value of the pressure sensor 4 is M, and the threshold P has multiple values ​​for pressures above and below M, such as pressures P1, P2, P3 and P4, among which the pressures of M, P1, P2, P3 and P4 are: P1<P2<M<P3<P4.

[0043] The specific adjustment scenario is as follows: when the bridge generates a load F and the pressure value of the pressure sensor 4 is within the range of M-P3, the downward deflection force generated by the bridge load is an acceptable downward deflection force, and the background control center does not interfere with it at this time; when the bridge generates a load F causing the pressure value of the pressure sensor 4 to be greater than P3, the background control center will start the drive motor 7, drive the threaded sleeve 5 upward through the engagement of the gear 8 and the gear block 305, and squeeze the prestressed support assembly 6, so that the prestressed support assembly 6 has a prestress to be reset with a value of N supporting upward, and the pressure of the bridge load F is offset by the prestress to be reset of the prestressed support assembly 6 until the value of the pressure sensor 4 is controlled to M, and then the pressure value of the pressure sensor 4 is adjusted to M. After adjusting to M, as the fluctuation of load F changes, if load F increases, automatic adjustment will continue to be performed according to the above principle. If load F decreases and the pressure value of pressure sensor 4 is within the range of P2-M, the bridge has an upward and insignificant upward flexural support force. At this time, the background control center will not interfere with the adjustment. When load F continues to decrease and the pressure value of pressure sensor 4 is within the range of P1-P2, the background control center will start the drive motor 7, and drive the threaded sleeve 5 downward through the engagement of gear 8 and gear block 305, so as to release the prestress to be reset supported by the N value of the prestressed support assembly 6, reduce the upper support of the bridge, and adjust the value of pressure sensor 4 to M again.

[0044] The prestressed support assembly 6 includes a prestressed gasket 601 arranged at the top of the threaded sleeve 5, and the prestressed gasket 601 is composed of two semi-annular spring steel gaskets. The two semi-annular spring steel gaskets enable the prestressed gasket 601 to be quickly replaced when it loses its resilience due to fatigue during long-term use.

[0045] The prestressed gasket 601 is provided with a wave protrusion 602 in an annular array, and the high end of the thickness of the wave protrusion 602 is higher than the top of the pressure sensor 4. The threaded sleeve 5 is threadedly connected to the hydraulic column 303 to ensure the stability of its connection and the stability of the extrusion of the prestressed gasket 601. The threaded sleeve 5 moves to the maximum extent to be flush with the top of the hydraulic column 303. At this time, the prestressed gasket 601 is in a compressed state because the high end of the thickness of the wave protrusion 602 is higher than the top of the pressure sensor 4.

[0046] A clamping strip 501 is disposed at the top of the threaded sleeve 5, and the clamping strip 501 is arranged in a ring shape;

[0047] A slot 603 is provided at the bottom end of the prestressed gasket 601, and the slot 603 and the clamping strip 501 are matched and connected. Two semi-annular spring steel gaskets are placed on the top of the threaded sleeve 5, and when they are matched into a circular ring, the prestressed gasket 601 is formed. At this time, the slot 603 and the clamping strip 501 are matched and connected, which avoids the two semi-annular spring steel gaskets from shaking and falling off when the prestressed support assembly 6 adjusts the supporting force.

[0048] After the prestressed gasket 601 is installed, the driving motor 7 is adjusted to make the prestressed gasket 601 stick to the bottom of the bridge with zero deformation pressure. This is the initial state of the prestressed support assembly 6. In this state, the slot 603 and the strip 501 cannot fall off, and they will be stuck even if there is an external force pulling them outward.

[0049] A plurality of ratchet grooves 502 are formed in a circular array on the clamping strip 501, a ratchet 503 is provided at one end of the ratchet groove 502, and a slope 504 is provided at the other end of the ratchet groove 502;

[0050] A plurality of clamping blocks 604 are arranged inside the clamping slot 603 and are matched and engaged with the ratchet teeth 503;

[0051] In the process of the threaded sleeve 5 threaded drive, the prestressed gasket 601 matched by two half rings rotates and upwardly hits the bridge. Because the matching of the clamping strip 501 and the clamping groove 603 is only due to the dead weight of the prestressed gasket 601, the matching effect is not good. There is a situation in which the prestressed gasket 601 is in a misaligned state when it hits the bridge due to factors such as vibration during the upward movement, resulting in the failure of the anti-falling effect. Then, the clamping block 604 and the ratchet 503 are connected, which avoids the separation of the prestressed gasket 601 matched by the two half rings due to factors such as vibration when the threaded sleeve 5 is lifted up, thereby causing the clamping strip 501 and the clamping groove 603 to be mismatched.

[0052] Specifically, after the ratchet 503 is provided at the top opening of the ratchet groove 502, the block 604 can still enter. When the two semi-annular spring steel washers of the prestressed gasket 601 are placed manually, they can be placed at will. First, the two semi-annular spring steel washers are matched into a circular shape, and then the matched circular prestressed gasket 601 is rotated. The block 604 on the prestressed gasket 601 will first fall into the ratchet groove 502, and then the block 604 and the ratchet 503 are engaged with each other as the rotation progresses.

[0053] The inclined clamping direction of the ratchet 503 is the same as the direction in which the threaded sleeve 5 rotates and moves upward. In this way, when the threaded sleeve 5 rotates and rises, the clamping force between the ratchet 503 and the clamping block 604 will be enhanced, thereby preventing the two semi-annular prestressed gaskets 601 from vibrating and moving. At the same time, when the prestressed gasket 601 becomes fatigued and lacks elasticity and needs to be replaced, the threaded sleeve 5 rotates in the opposite direction to make the clamping block 604 on the prestressed gasket 601 move and lift along the slope 504 of the ratchet groove 502, so that it is set at the upper end of the clamping strip 501, so that the clamping between the ratchet 503 and the clamping block 604 can be directly taken away without manual rotation and adjustment.

[0054] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described one by one here. In the above, welding is preferred for all fixed connections. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and deformations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A continuous rigid frame bridge body deflection prevention and reinforcement device, comprising a continuous rigid frame bridge (1), characterized in that: An auxiliary support pier (2) is arranged at the mid-span position of the continuous rigid frame bridge (1), and a hydraulic support mechanism (3) is arranged at the top of the auxiliary support pier (2), and a pressure sensor (4) is arranged at the top of the hydraulic support mechanism (3), and the pressure sensor (4) contacts the bottom end of the continuous rigid frame bridge (1) and is used to monitor the self-weight downward deflection stress of the beam body; The hydraulic support mechanism (3) is provided with a threaded sleeve (5), and a prestressed support component (6) is provided at the top of the threaded sleeve (5); the prestressed support component (6) abuts against the bottom end of the supporting continuous rigid frame bridge (1) to offset the deflection force generated by the bridge load.

2. The continuous rigid frame bridge body deflection prevention and reinforcement device according to claim 1 is characterized by: The auxiliary support pier (2) is arranged in a Y shape, and the Y-shaped top end of the auxiliary support pier (2) is provided with a pre-embedded screw rod (201), and the hydraulic support mechanism (3) is fixedly installed on the top end of the auxiliary support pier (2) by matching and locking a nut and the pre-embedded screw rod (201).

3. The continuous rigid frame bridge body deflection prevention and reinforcement device according to claim 2 is characterized by: The hydraulic support mechanism (3) comprises a mounting plate (301) connected to the embedded screw rod (201), a telescopic column (302) arranged at the top end of the mounting plate (301), and a hydraulic column (303) sleeved on an end of the telescopic column (302) away from the mounting plate (301).

4. The continuous rigid frame bridge body deflection prevention and reinforcement device according to claim 3 is characterized by: A notch for installing a pressure sensor (4) is provided at one end of the hydraulic column (303) away from the telescopic column (302), and the top end of the pressure sensor (4) protrudes from the top end of the hydraulic column (303) after being installed in the notch on the hydraulic column (303).

5. The continuous rigid frame bridge body deflection prevention and reinforcement device according to claim 4 is characterized by: The outer circumferential wall of the hydraulic column (303) is provided with an external thread (304), and the external thread (304) is threadedly connected to the threaded sleeve (5), and a tooth block (305) is provided in an annular array outside the circumference of the threaded sleeve (5); A driving motor (7) is fixedly installed on both sides of the mid-span of the continuous rigid frame bridge (1), and a gear (8) is fixedly installed on the output shaft of the driving motor (7), and the gear (8) is meshed with a gear block (305).

6. The continuous rigid frame bridge body deflection prevention and reinforcement device according to claim 5 is characterized by: The prestressed support assembly (6) comprises a prestressed gasket (601) arranged at the top end of the threaded sleeve (5), and the prestressed gasket (601) is composed of two semi-annular spring steel gaskets.

7. The continuous rigid frame bridge body deflection prevention and reinforcement device according to claim 6 is characterized by: The prestressed gasket (601) is provided with wave protrusions (602) in an annular array, and the high end of the wave protrusion (602) is higher than the top of the pressure sensor (4).

8. The continuous rigid frame bridge body deflection prevention and reinforcement device according to claim 7 is characterized by: A clamping strip (501) is arranged at the top end of the threaded sleeve (5), and the clamping strip (501) is arranged in a ring shape; A clamping groove (603) is provided at the bottom end of the prestressed gasket (601), and the clamping groove (603) and the clamping strip (501) are matched and clamped.

9. The continuous rigid frame bridge body deflection prevention and reinforcement device according to claim 8 is characterized by: A plurality of ratchet grooves (502) are provided in an annular array on the clamping strip (501), a ratchet (503) is provided at one end of the ratchet groove (502), and a slope (504) is provided at the other end of the ratchet groove (502); A plurality of clamping blocks (604) are arranged inside the clamping slot (603) and are matched and clamped with the ratchet teeth (503).

10. The continuous rigid frame bridge body deflection prevention and reinforcement device according to claim 9, characterized in that: The inclined clamping direction of the ratchet teeth (503) is the same as the direction in which the threaded sleeve (5) rotates upward.

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