Road and bridge crack reinforcing structure and reinforcing method

Abstract

The invention discloses a road and bridge crack reinforcing structure and method. The road and bridge crack reinforcing structure comprises a main supporting mechanism and a reinforcing mechanism, wherein the main supporting mechanism is fixedly attached to a road and bridge crack face to serve as a support; the side supporting mechanism is arranged on one side of the main supporting mechanism and fixed to the road and bridge gap face. The fiber net supporting mechanism is connected to the main supporting mechanism, a fiber net is supported above the fiber net supporting mechanism, and the fiber net supporting mechanism is used for unfolding and fixing the fiber net; the optical fiber sensor is installed on the main supporting mechanism, one end of the optical fiber sensor is fixedly connected with a reflection eliminator, and the periphery of the optical fiber sensor is sleeved with a silicon rubber sleeve; according to the road bridge crack reinforcing structure and method, self-adaptive adjustment of the length and the width can be achieved through cross hinging, different crack forms can be matched, in addition, the cross structure can provide multidirectional stress dispersion, so that the local bearing stability is improved, meanwhile, crack displacement data can be monitored in real time, and the road bridge crack reinforcing structure and method have the advantages of being high in practicability and the like. And the effect of an early warning function is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of crack reinforcement, in particular to a road and bridge crack reinforcement structure and a reinforcement method. BACKGROUND

[0002] A road and bridge is generally composed of a roadbed, a road surface, a bridge, a tunnel engineering and a traffic engineering facility. During the use of the road and bridge, cracks may occur on the road surface due to long-term extrusion by vehicles and external environmental factors. In order to ensure normal traffic on the road surface, the cracks need to be repaired, and a reinforcement structure needs to be used to reinforce the inside of the cracks during the repair process.

[0003] A conventional support frame (such as a steel door frame or a carbon fiber plate) for crack reinforcement has a fixed geometric shape and needs to be customized according to different crack widths and directions (horizontal, vertical or oblique). Therefore, 5-8 types of support frames need to be reserved for a single project, which increases the inventory cost by more than 30%. In addition, a plurality of types of support frames need to be prepared for backup during crack reinforcement work, which causes difficulty in carrying. SUMMARY

[0004] The present application discloses a road and bridge crack reinforcement structure and a reinforcement method, which aims to solve the technical problem that a conventional support frame (such as a steel door frame or a carbon fiber plate) for crack reinforcement has a fixed geometric shape and needs to be customized according to different crack widths and directions (horizontal, vertical or oblique). Therefore, 5-8 types of support frames need to be reserved for a single project, which increases the inventory cost by more than 30%. In addition, a plurality of types of support frames need to be prepared for backup during crack reinforcement work, which causes difficulty in carrying.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0006] The road and bridge crack reinforcement structure comprises a main support mechanism, a side support mechanism and a fiber mesh support mechanism. The main support mechanism is fixedly attached to the crack surface of the road and bridge as a support. The side support mechanism is arranged on one side of the main support mechanism and is fixed to the crack surface of the road and bridge. The fiber mesh support mechanism is connected to the main support mechanism and supports a fiber mesh above it for unfolding and fixing the fiber mesh. An optical fiber sensor is installed on the main support mechanism and has a reflection eliminator fixedly connected to one end thereof. A silica gel sleeve is sleeved on the outer periphery of the optical fiber sensor. A cover plate is arranged on the outer side of the main support mechanism.

[0007] The main support mechanism comprises: a plurality of parallelly arranged waist-shaped hollow supporting frames, and a plurality of hinge joints one are fixedly connected to the outer wall of the bottom end of each waist-shaped hollow supporting frame; a supporting rod two is fixedly connected to the inner wall of each waist-shaped hollow supporting frame, and a plurality of lancets one are fixedly connected to the circumferential outer wall of the supporting rod two; a plurality of parallelly arranged waist-shaped supporting plates, a plurality of hinge joints one are arranged between the top end of each waist-shaped supporting plate and the waist-shaped hollow supporting frame; the plurality of waist-shaped supporting plates and the plurality of waist-shaped hollow supporting frames form a cross structure; a plurality of square hollow supporting frames are fixedly connected to the top end outer wall of the plurality of waist-shaped supporting plates, a supporting rod one is fixedly connected to the inner wall of each hollow supporting frame, and a plurality of lancets three are fixedly connected to the circumferential outer wall of the supporting rod one; a fixed frame one and a fixed frame three are fixedly connected to the road bridge gap surface through bolts, two waist-shaped grooves are symmetrically arranged in the inner wall of the fixed frame one and the fixed frame three, and a plurality of hinge joints one are movably connected in the waist-shaped grooves; a plurality of injection holes are arranged in the inner wall of the plurality of waist-shaped supporting plates, the waist-shaped hollow supporting frames and the square hollow supporting frames;

[0008] The main support mechanism further comprises: a fixed frame two, the center position of which is hingedly connected to the center position of the cross structure formed by the plurality of waist-shaped supporting plates and the plurality of waist-shaped hollow supporting frames; a notch is arranged at the center position of each supporting rod two; a plurality of rotating connecting seats are fixedly connected to one side of the inner wall of the plurality of waist-shaped hollow supporting frames and arranged at the notch position;

[0009] The main support mechanism further comprises: a plurality of soft clamping frames, which are rotatably connected to the inner wall of the rotating connecting seat and used for clamping the optical fiber sensor; and a plurality of cutting grooves, which are cut by an external angle grinder and arranged on the opposite two side inner walls of each waist-shaped hollow supporting frame.

[0010] By arranging the main support mechanism, grooves are first formed at the cracks, and the main support mechanism is then placed in. The main support mechanism mainly comprises a cross structure formed by the plurality of waist-shaped supporting plates and the plurality of waist-shaped hollow supporting frames as a main structure. In this structure, the length and width can be self-adaptively adjusted through cross hinging, and different crack forms can be matched. In addition, the cross structure can provide multidirectional stress dispersion, thereby improving the local bearing stability. Through the arrangement of the optical fiber sensor, crack displacement data can be transmitted to the management platform in real time, and a warning function is realized, so that maintenance services can be quickly provided when the crack is further enlarged.

[0011] In a preferred scheme, the fiber mesh support mechanism comprises: a plurality of fixed frames five, the top center positions of which are hingedly connected to the bottom of the intersection points of the cross structure formed by the plurality of waist-shaped supporting plates and the plurality of waist-shaped hollow supporting frames; a plurality of prismatic hinge frames, two ends of each prismatic hinge frame are rotatably connected with a hinge joint two, and the hinge joint two is hingedly connected to the plurality of fixed frames five; and two U-shaped supporting frames are fixedly connected to the two ends of each fixed frame five.

[0012] The fiber web supporting mechanism further comprises: a plurality of second needle pins, which are fixedly connected to one end of the U-shaped support frame; a plurality of second circular through holes, which are arranged through the inner wall of the bottom end of the U-shaped support frame; and a plurality of fourth supporting rods, which are movably inserted into the plurality of second circular through holes.

[0013] The fiber web supporting mechanism further comprises: a first circular supporting plate and a second circular supporting plate, which are fixedly connected to two ends of each fourth supporting rod; a spring, which surrounds the outer periphery of each fourth supporting rod, and the top end of the spring is fixedly connected to the first circular supporting plate, and the bottom end of the spring is fixedly connected to the inner wall of the U-shaped support frame; and a soft pad, which is fixedly attached to the outer side of the first circular supporting plate.

[0014] By arranging the fiber web supporting mechanism, the fiber web can be supported, the close connection between the fiber web and the structure is ensured, the paving of the fiber web on the surface of the road and bridge crack is ensured, the integrity of the structure and the concrete is optimized, the reinforcing effect is further optimized, and the uniform pulling and limiting of the fiber web around can be achieved by arranging the plurality of prismatic hinged frames.

[0015] In a preferred scheme, the side supporting mechanism comprises: a fourth fixing frame fixed to the surface of the road and bridge crack by bolts; a sleeve fixedly connected to one side of the outer wall of the fourth fixing frame; a second side supporting plate fixedly connected to one side of the outer wall of the third fixing frame; and a third supporting rod fixedly connected to one side of the outer wall of the second side supporting plate.

[0016] The side supporting mechanism further comprises: an external thread arranged at one end of the third supporting rod; a first side supporting plate connected to one side of the outer wall of the third fixing frame by a hinge; and a first circular through hole arranged through the first side supporting plate.

[0017] The side supporting mechanism further comprises: a threaded sleeve rotatably connected in the first circular through hole and movably engaged with the external thread on the third supporting rod; and two limiting rings fixedly connected to the outer circumferential wall of the threaded sleeve, and the two limiting rings are located on both sides of the first side supporting plate.

[0018] By arranging the side supporting mechanism, when the structure is used to reinforce the crack at the bottom of the bridge, the side supporting mechanism can be installed on one side of the main supporting mechanism, the main supporting mechanism can be lifted first, and the main supporting mechanism can be completely covered on the outside of the crack by bolt fixation after the crack is polished and injected, so that the positioning and installation of the main supporting mechanism are facilitated, the installation difficulty is reduced, and the installation efficiency is improved.

[0019] A reinforcing method of a road and bridge crack reinforcing structure, comprising the following specific steps:

[0020] S1: finding the crack position, digging a deep groove inward, and cleaning the crack debris;

[0021] S2: Pour epoxy resin into the crack, wait for the epoxy resin to solidify, and clean the pouring surface;

[0022] S3: Pre-set the installation position of the optical fiber sensor, cut the slot position with an angle grinder, and then install the optical fiber sensor in the slot and the soft clamping frame;

[0023] S4: Hang the fiber mesh at the two positions of the four-cornered needle, so that multiple circular support plates are extruded on the surface of the fiber mesh;

[0024] S5: Place the structure in the deep groove, adjust the length and width of the main support mechanism so that it covers the surface of the crack, and fix the main support mechanism in the deep groove through bolts;

[0025] S6: Inject mortar into the waist-shaped hollow support and the square hollow support through multiple injection holes;

[0026] S7: Cover the cover plate, and then fill the deep groove with mortar after the mortar solidifies, complete the crack reinforcement. If the gap is located at the bridge bottom position, the cover plate does not need to be covered, and the mortar can be directly filled.

[0027] As can be known from the above, the road and bridge crack reinforcing structure comprises a main support mechanism fixedly attached to a road and bridge crack surface as a support, a side support mechanism arranged on one side of the main support mechanism and fixed to the road and bridge crack surface, a fiber mesh support mechanism connected to the main support mechanism, a fiber mesh supported above the fiber mesh support mechanism for unfolding and fixing the fiber mesh, an optical fiber sensor mounted on the main support mechanism and having a reflection eliminator fixedly connected to one end of the optical fiber sensor, and a silica gel sleeve sleeved on an outer periphery of the optical fiber sensor, and a cover plate covering an outer side of the main support mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 The overall structure diagram of the road and bridge crack reinforcing structure is provided.

[0029] Figure 2 The internal structure diagram of the road and bridge crack reinforcing structure is provided.

[0030] Figure 3 The overall structure diagram of the road and bridge crack reinforcing structure is provided.

[0031] Figure 4 The main support mechanism of the road and bridge crack reinforcing structure is provided.

[0032] Figure 5 The fiber mesh support mechanism of the road and bridge crack reinforcing structure is provided.

[0033] Figure 6 A side support mechanism disassembly schematic view of a road bridge crack reinforcing structure is provided.

[0034] Figure 7 A specific flowchart of a reinforcing method of a road bridge crack reinforcing structure is provided.

[0035] In the figure: 1, fiber net; 2, main support mechanism; 3, side support mechanism; 4, fiber net support mechanism; 5, covering plate; 6, reflection eliminator; 7, silica gel sleeve; 8, optical fiber sensor; 201, fixed frame one; 202, fixed frame two; 203, support rod one; 204, square hollow support frame; 205, waist-shaped hollow support frame; 206, waist-shaped support plate; 207, soft clamping frame; 208, rotating connecting seat; 209, cutting groove; 210, hinge one; 211, support rod two; 212, needle one; 213, notch; 214, injection hole; 215, fixed frame three; 216, waist-shaped groove; 301, fixed frame four; 302, sleeve; 303, limiting ring; 304, screw sleeve; 305, side support plate one; 306, circular perforation one; 307, external thread; 308, support rod three; 309, side support plate two; 401, prismatic hinge frame; 402, hinge two; 403, soft pad; 404, circular support plate one; 405, fixed frame five; 406, spring; 407, support rod four; 408, circular support plate two; 409, needle two; 410, U-shaped support frame; 411, circular perforation two. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all.

[0037] The road bridge crack reinforcing structure and the reinforcing method disclosed by the present application are mainly applied to the scene of reinforcing road bridge cracks.

[0038] Reference Figures 1-4 A road bridge crack reinforcing structure, comprising:

[0039] The main support mechanism 2 is fixedly attached to the road bridge crack surface as a support;

[0040] The side support mechanism 3 is arranged on one side of the main support mechanism 2 and is fixed to the road bridge crack surface;

[0041] The fiber net support mechanism 4 is connected to the main support mechanism 2, and the fiber net 1 is supported above the fiber net support mechanism 4 for unfolding and fixing the fiber net 1;

[0042] The optical fiber sensor 8 is installed on the main support mechanism 2, and one end of the optical fiber sensor 8 is fixedly connected with the reflection eliminator 6, and the outer periphery of the optical fiber sensor 8 is sleeved with the silica gel sleeve 7;

[0043] The covering plate 5 covers the outer side of the main support mechanism 2;

[0044] The main support mechanism 2 comprises:

[0045] A plurality of parallel waist-shaped hollow supporting frames 205, and a plurality of hinge joints one 210 are fixedly connected to the outer wall of the bottom end of each waist-shaped hollow supporting frame 205, and a plurality of branch rods two 211 are fixedly connected to the inner wall of each waist-shaped hollow supporting frame 205, and a plurality of needle one 212 are fixedly connected to the outer wall of the circumference of the branch rod two 211;

[0046] A plurality of parallel waist-shaped supporting plates 206, and a plurality of waist-shaped hollow supporting frames 205 are hingedly connected to the top end of the waist-shaped supporting plate 206 through a plurality of hinge joints one 210, and the plurality of waist-shaped supporting plates 206 and the plurality of waist-shaped hollow supporting frames 205 form a cross structure;

[0047] A plurality of square hollow supporting frames 204 are fixedly connected to the top end outer wall of the plurality of waist-shaped supporting plates 206, and a plurality of branch rods one 203 are fixedly connected to the inner wall of each hollow supporting frame 204, and a plurality of needle three are fixedly connected to the outer wall of the circumference of the branch rod one 203;

[0048] The fixed frame one 201 and the fixed frame three 215 are fixedly connected to the road bridge gap surface through bolts, and two waist-shaped grooves 216 are symmetrically and respectively arranged in the inner wall of the fixed frame one 201 and the fixed frame three 215, and a plurality of hinge joints one 210 are respectively and correspondingly movably connected in the waist-shaped groove 216, and the main support mechanism 2 is placed in the slotting at the crack, and the main support mechanism 2 mainly comprises a cross structure formed by the plurality of waist-shaped supporting plates 206 and the plurality of waist-shaped hollow supporting frames 205, and no matter whether the crack extends along the X-axis or the Z-axis, the crack position can be covered through the deformation of the cross structure, and then the positions of the fixed frame three 215 and the fixed frame one 201 are fixedly connected through bolts, so that the fixation of the cross structure is completed;

[0049] A plurality of injection holes 214 are arranged through the inner walls of the plurality of waist-shaped support plates 206, the waist-shaped hollow base frame 205 and the square hollow support frame 204, and then mortar is injected into the square hollow support frame 204 and the waist-shaped hollow support frame 205 through the injection holes 214. The connection between the mortar and the main support mechanism 2 is optimized by increasing the friction under the action of the needle one 212 and the needle three, and the close connection between the main support mechanism 2 and the crack surface is ensured after the mortar is poured into the slotted part again. In this structure, the length and width can be self-adaptively adjusted through cross articulation, which can match different crack forms. In addition, the cross structure can provide multidirectional stress dispersion, thereby improving the local bearing stability. Through the arrangement of the optical fiber sensor 8, the reflection eliminator 6 is used to reduce the reflection interference of the optical signal, and the crack displacement data can be transmitted to the management platform in real time through the embedded optical fiber sensor 8 at the cross node, thereby realizing the early warning function and providing rapid maintenance services when the crack further increases. The silica gel sleeve 7 is used to buffer the shrinkage stress of the setting concrete, and does not affect the monitoring results.

[0050] With reference to Figure 3 and Figure 4 In a preferred embodiment, the main support mechanism 2 further comprises:

[0051] The fixed frame two 202 is hinged to the center position of the cross structure formed by the plurality of waist-shaped support plates 206 and the plurality of waist-shaped hollow support frames 205 through the hinge one 210;

[0052] The notch 213 is located at the center position of each support rod two 211;

[0053] The plurality of rotating connection seats 208 are fixedly connected to the inner wall of one side of the plurality of waist-shaped hollow support frames 205 and are located at the position of the notch 213.

[0054] With reference to Figure 4 In a preferred embodiment, the main support mechanism 2 further comprises:

[0055] The plurality of soft clamping frames 207 are rotatably connected to the inner wall of the rotating connection seat 208 and are used for clamping the optical fiber sensor 8. The soft clamping frame 207 is used for clamping the optical fiber sensor 8, and the rotating structure can be adapted to any form of main support mechanism 2;

[0056] The plurality of cutting grooves 209 are cut by an external angle grinder and are arranged on the opposite inner walls of each waist-shaped hollow support frame 205.

[0057] With reference to Figure 6 In a preferred embodiment, the side support mechanism 3 comprises:

[0058] The fixed frame four 301 is fixed to the road and bridge crack surface by bolts;

[0059] The sleeve 302 is fixedly connected to one side of the outer wall of the fixed frame four 301.

[0060] The side support plate two 309 is fixedly connected to one side of the outer wall of the fixed frame three 215.

[0061] The third supporting rod 308 is fixedly connected to one side of the outer wall of the side support plate two 309.

[0062] Referring to Figure 6 In a preferred embodiment, the side support mechanism 3 further comprises:

[0063] The external thread 307 is arranged at one end of the third supporting rod 308.

[0064] The side support plate one 305 is connected to one side of the outer wall of the fixed frame three 215 through a hinge.

[0065] The circular hole one 306 is arranged through the side support plate one 305, when the structure is used to reinforce the cracks at the bottom of the bridge, the side support mechanism 3 can be installed on one side of the main support mechanism 2, mainly after the sleeve nut 304 is separated from the third supporting rod 308, the side support plate one 305 is turned down from the position of the hinge, the sleeve 302 is sleeved on the outside of the third supporting rod 308, the connection between the fixed frame four 301 and the fixed frame three 215 is established, then the side support plate one 305 is turned up, the sleeve nut 304 is rotated, and the external thread 307 on the third supporting rod 308 is engaged, so that the connection between the fixed frame four 301 and the fixed frame three 215 is realized, then the fixed frame three 215 can be fixedly installed on the outer wall of the bottom of the bridge according to the approximate position of the crack through the bolt, and the main support mechanism 2 can be lifted.

[0066] Referring to Figure 6 In a preferred embodiment, the side support mechanism 3 further comprises:

[0067] The sleeve nut 304 is rotatably connected in the circular hole one 306 and movably engaged with the external thread 307 on the third supporting rod 308.

[0068] The two limiting rings 303 are fixedly connected to the outer wall of the circumference of the sleeve nut 304, and the two limiting rings 303 are located on both sides of the side support plate one 305, when the crack is polished and injected, the main support mechanism 2 can be turned up and fixed by the bolt, so that the main support mechanism 2 completely covers the outside of the crack, and the positioning and installation of the main support mechanism 2 are facilitated, the installation difficulty is reduced, and the installation efficiency is improved.

[0069] Referring to Figure 3 And Figure 5 In a preferred embodiment, the fiber net support mechanism 4 comprises:

[0070] A plurality of fixed frame five 405, the top center position is respectively hinged to a plurality of waist type support plate 206 and a plurality of waist type hollow resistance frame 205 constitute the intersection point of the intersection structure bottom;

[0071] A plurality of prismatic hinge frame 401, both ends of each prismatic hinge frame 401 top respectively rotating connection has hinge two 402, and through the hinge two 402 hinged to a plurality of fixed frame five 405;

[0072] Two U type support frame 410, respectively fixedly connected to both ends of each fixed frame five 405.

[0073] Referring to Figure 5 In a preferred embodiment, the fiber web support mechanism 4 further comprises:

[0074] A plurality of needle two 409, respectively fixedly connected to one end of the U type support frame 410, can be used for supporting the fiber web 1, can be hung through a plurality of needle two 409 around the fiber web 1 respectively, and with the fiber web 1 is driven to both sides of the fiber web 1 is unfolded;

[0075] A plurality of circular perforations two 411, respectively arranged in the bottom end of the U type support frame 410 inner wall;

[0076] A plurality of support rod four 407, respectively inserted in a plurality of circular perforations two 411.

[0077] Referring to Figure 5 In a preferred embodiment, the fiber web support mechanism 4 further comprises:

[0078] Circular support plate one 404 and circular support plate two 408, respectively fixedly connected to both ends of each support rod four 407;

[0079] Spring 406, around the outer periphery of each support rod four 407, and the top end of the spring 406 and circular support plate one 404 fixedly connected, the bottom end of the spring 406 and the inner wall of the U type support frame 410 fixedly connected, when the fiber web 1 is adhered to the surface of the road and bridge crack, under the spring 406 rebound effect driven circular support plate one 404 fiber web 1 is extruded in the surface, in this structure, can guarantee the close connection between the fiber web 1 and the structure, also guarantee the fiber web 1 in the road and bridge crack surface paving, thus optimizing the structure and the integrity of the concrete, further optimize the reinforcement effect;

[0080] Soft pad 403, fixedly attached to the outside of the circular support plate one 404, in addition, through the setting of a plurality of prismatic hinge frame 401, can guarantee that both sides of the fixed frame five 405 always keep parallel structure when moving to both sides, avoid the fixed frame five 405 tilt, so as to realize the uniform pulling of the fiber web 1 around the limit, also guarantee the stability of the needle two 409 limit position.

[0081] Referring to Figure 7 A reinforcing method of a road bridge crack reinforcing structure, comprising the following specific steps:

[0082] S1: find the crack position, dig a deep groove inward, and clean the crack debris;

[0083] S2: pour epoxy resin into the crack, wait for the epoxy resin to solidify, and clean the pouring surface;

[0084] S3: preset the installation position of the optical fiber sensor 8, cut the cutting groove 209 position with an angle grinder, and then install the optical fiber sensor 8 in the cutting groove 209 and the soft clamping frame 207;

[0085] S4: hang the fiber net 1 at the position of the four-cornered needle two 409, so that the plurality of circular support plates one 404 are pressed on the surface of the fiber net 1;

[0086] S5: place the structure in the deep groove, adjust the length and width of the main support mechanism 2, so that it covers the surface of the crack, and fix the main support mechanism 2 in the deep groove through the bolts;

[0087] S6: inject mortar into the waist-shaped hollow support 205 and the square hollow support 204 through the plurality of injection holes 214;

[0088] S7: cover the cover plate 5, and then fill the mortar in the deep groove after the mortar is solidified, complete the crack reinforcement, if the gap is located at the bridge bottom position, the cover plate 5 is not used, and the mortar is directly filled.

[0089] Working principle: first groove at the crack, put the main support mechanism 2, the main support mechanism 2 is mainly composed of multiple waist type support plate 206 and multiple waist type hollow resistance frame 205 cross structure as the main structure, no matter the crack is along the X axis or Z axis extension, can be through the deformation of cross structure to complete the crack position coverage, then through the bolt fixed fixed frame three 215 and the position of fixed frame one 201, that is, the cross structure can be fixed, then through the injection hole 214 to the square hollow resistance frame 204 and the waist type hollow resistance frame 205 into the mortar, under the action of needle one 212 and needle three, the connection between the mortar and the main support mechanism 2 is optimized by increasing the friction force, and then the mortar is poured into the groove again, which guarantees the close connection between the main support mechanism 2 and the crack surface. Under this structure, the length and width can be self-adaptively adjusted through cross hinged connection, which can match different crack forms. In addition, the cross structure can provide multidirectional stress dispersion, thereby improving the local bearing stability. Through the setting of the optical fiber sensor 8, the reflection eliminator 6 is used to reduce the optical signal reflection interference. By embedding the optical fiber sensor 8 in the cross node, the crack displacement data can be transmitted to the management platform in real time to realize the early warning function, so as to quickly provide maintenance service when the crack further increases. The silica gel sleeve 7 is used to buffer the shrinkage force of the concrete solidification, and does not affect the monitoring result.

[0090] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A road and bridge crack reinforcement structure, characterized in that, include: The main support mechanism (2) is fixedly attached to the surface of the road and bridge joints as a support; Side support mechanism (3) is set on one side of main support mechanism (2) and fixed to the road and bridge joint surface; A fiber web support mechanism (4) is connected to the main support mechanism (2), and a fiber web (1) is supported above it for unfolding and fixing the fiber web (1); The fiber optic sensor (8) is mounted on the main support mechanism (2), and one end of it is fixedly connected to a reflection canceller (6). The outer periphery of the fiber optic sensor (8) is fitted with a silicone sleeve (7). Cover plate (5) covers the outside of the main support mechanism (2); The main support structure (2) includes: Multiple parallel waist-shaped hollow braces (205) are provided, and multiple hinge joints (210) are fixedly connected to the bottom outer wall of each waist-shaped hollow brace (205). Support rods (211) are fixedly connected to the inner wall of each waist-shaped hollow brace (205), and multiple needles (212) are fixedly connected to the circumferential outer wall of the support rods (211). Multiple parallel waist-shaped support plates (206) and multiple waist-shaped hollow abutments (205) are respectively hinged to the top of the waist-shaped support plates (206) through multiple hinge joints (210), and the multiple waist-shaped support plates (206) and multiple waist-shaped hollow abutments (205) form a cross structure. Multiple square hollow supports (204) are fixedly connected to the top outer wall of multiple waist-shaped support plates (206), and each hollow support (204) is fixedly connected to a support rod (203) on its inner wall, and multiple needles are fixedly connected to the outer circumference of the support rod (203). Fixing frame one (201) and fixing frame three (215) are fixed to the road and bridge joint surface by bolts. The inner walls of fixing frame one (201) and fixing frame three (215) are respectively symmetrically provided with two waist-shaped grooves (216), and multiple hinge joints one (210) are respectively movably connected in the waist-shaped grooves (216). Multiple injection holes (214) are simultaneously installed through the inner walls of multiple waist-shaped support plates (206), waist-shaped hollow base frames (205), and square hollow support frames (204).

2. The road and bridge crack reinforcement structure according to claim 1, characterized in that, The main support structure (2) also includes: The second fixed frame (202) is hinged at its center to the center of the cross structure composed of multiple waist-shaped support plates (206) and multiple waist-shaped hollow abutments (205) via the first hinge joint (210); The notch (213) is located at the center of each support rod (211); Multiple rotating connecting seats (208) are fixedly connected to the inner wall of one side of multiple waist-shaped hollow supports (205) and located at the notch (213).

3. The road and bridge crack reinforcement structure according to claim 2, characterized in that, The main support structure (2) also includes: Multiple flexible clamps (207) are rotatably connected to the inner wall of the rotating connecting seat (208) and are used to clamp the fiber optic sensor (8); Multiple grooves (209), cut using an external angle grinder, are located on the inner walls of opposite sides of each waist-shaped hollow support (205).

4. The road and bridge crack reinforcement structure according to claim 1, characterized in that, The side support mechanism (3) includes: Fixing bracket four (301) is fixed to the road and bridge joint surface by bolts; Sleeve (302) is fixedly connected to the outer wall of one side of the fixing bracket (301); Side support plate two (309) is fixedly connected to the outer wall of one side of the fixed frame three (215); Support rod three (308) is fixedly connected to the outer wall of one side of side support plate two (309).

5. A road and bridge crack reinforcement structure according to claim 4, characterized in that, The side support mechanism (3) also includes: External thread (307) is provided at one end of support rod three (308); Side support plate 1 (305) is connected to the outer wall of one side of fixed frame 3 (215) by hinge; A circular perforation (306) is provided through the side support plate (305).

6. A road and bridge crack reinforcement structure according to claim 5, characterized in that, The side support mechanism (3) also includes: The threaded sleeve (304) is rotatably connected to the circular through hole (306) and is movably engaged with the external thread (307) on the support rod (308); Two limiting rings (303) are fixedly connected to the outer circumference of the threaded sleeve (304), and the two limiting rings (303) are located on both sides of the side support plate (305).

7. A road and bridge crack reinforcement structure according to claim 1, characterized in that, The fiber web support mechanism (4) includes: Multiple fixed frames (405) are respectively hinged at the center of their tops to the bottom of the intersection of multiple waist-shaped support plates (206) and multiple waist-shaped hollow abutments (205) forming a cross structure; Multiple prismatic hinge frames (401), each of which has a hinge joint two (402) rotatably connected to the top of both ends, and is hinged to multiple fixed frames five (405) through the hinge joint two (402); Two U-shaped supports (410) are fixedly connected to both ends of each fixed frame (405).

8. A road and bridge crack reinforcement structure according to claim 7, characterized in that, The fiber web support mechanism (4) further includes: Multiple needles (409) are fixedly connected to one end of the U-shaped support (410); Multiple circular perforations (411) are respectively installed through the inner wall of the bottom end of the U-shaped support (410); Multiple support rods (407) are movably inserted into multiple circular perforations (411).

9. A road and bridge crack reinforcement structure according to claim 8, characterized in that, The fiber web support mechanism (4) further includes: Circular support plate one (404) and circular support plate two (408) are respectively fixedly connected to both ends of each support rod four (407); Spring (406) surrounds the outer periphery of each support rod four (407), and the top end of spring (406) is fixedly connected to circular support plate one (404), and the bottom end of spring (406) is fixedly connected to the inner wall of U-shaped support frame (410). A soft pad (403) is fixedly attached to the outside of a circular support plate (404).

10. A method for reinforcing a road and bridge crack reinforcement structure, applied to the road and bridge crack reinforcement structure described in claims 3 and 9, characterized in that, The specific steps include the following: S1: Locate the crack, dig a deep trench inward, and clean up the debris from the crack; S2: Inject epoxy resin into the crack, wait for the epoxy resin to solidify, and clean the injection surface; S3: Preset the installation position of the fiber optic sensor (8), cut out the groove (209) using an angle grinder, and then install the fiber optic sensor (8) in the groove (209) and the flexible clamp (207); S4: Fiber mesh (1) is attached to the two needles (409) at the four corners, so that multiple circular support plates (404) are pressed onto the surface of the fiber mesh (1); S5: Place the structure into the deep groove, adjust the length and width of the main support mechanism (2) so that it covers the surface of the crack, and fix the main support mechanism (2) into the deep groove with bolts; S6: Inject mortar into the waist-shaped hollow support frame (205) and the square hollow support frame (204) through multiple injection holes (214); S7: Cover with cover plate (5), and fill the deep groove with mortar after the mortar has solidified to reinforce the crack. If the crack is located at the bottom of the bridge, there is no need to cover with cover plate (5), and you can directly fill with mortar.

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