Bridge reinforcement device

Abstract

The application relates to a bridge reinforcing device, which comprises a plurality of beam body mechanisms, at least two beam body mechanisms are distributed along a first direction, each beam body mechanism comprises a beam body and a reinforcing assembly, the beam body has a first chamfer part, and the reinforcing assembly covers at least the first chamfer part to reinforce the first chamfer part; a support mechanism is arranged between the two beam body mechanisms distributed along the first direction, the support mechanism has oppositely arranged first and second ends, the first end abuts against the reinforcing assembly on one of the first chamfer parts, and the second end abuts against the reinforcing assembly on the other first chamfer part. Through the technical scheme, the reinforcing part at the chamfer part in the related art can be prevented from easily falling off.

Description

Technical Field

[0001] This application relates to the field of bridge reinforcement technology, and in particular to bridge reinforcement devices. Background Technology

[0002] Currently, some early-built bridges are gradually exhibiting various structural defects, such as continuously expanding cracks and accumulating damage, leading to a gradual decrease in load-bearing capacity and a sustained decline in cross-sectional stiffness. Furthermore, with the development of the transportation industry, the load-bearing demands on bridges are increasing, and the load ratings of some routes urgently need to be improved. The original design load-bearing capacity of some bridges is no longer sufficient to meet the requirements, seriously affecting their safety performance. Therefore, bridge reinforcement is urgently needed.

[0003] In related technologies, bridges include multiple beam structures, each beam structure including a beam body and a reinforcing plate. The beam body has a chamfered portion, and a reinforcing plate is provided on the side surface of the chamfered portion, and the reinforcing plate is fixed to the chamfered portion by bolts.

[0004] However, while the chamfered section can alleviate stress concentration and reduce cracking of the beam body, the length of the bolt anchorage at the chamfered section is limited in order to ensure the structural strength of the chamfered section. This makes it impossible to guarantee the fixing effect of the reinforcement plate, and the reinforcement plate is very easy to fall off. Utility Model Content

[0005] Therefore, it is necessary to provide a bridge reinforcement device to address the problem that the reinforcement at the chamfered corner is prone to falling off.

[0006] A bridge reinforcement device, comprising:

[0007] Multiple beam structures, at least two beam structures are distributed at intervals along a first direction, each beam structure includes a beam body and a reinforcing component, the beam body has a first chamfer, and the reinforcing component at least covers the first chamfer to reinforce the first chamfer;

[0008] A support mechanism is disposed between two beam mechanisms spaced apart along a first direction. The support mechanism has a first end and a second end disposed opposite to each other. The first end abuts against a reinforcing component on one of the first chamfered portions, and the second end abuts against a reinforcing component on the other first chamfered portion.

[0009] In one embodiment, the support mechanism includes:

[0010] The first support member, one end of which is the first end;

[0011] The second support member has one end as the second end.

[0012] An adjusting member is disposed between the first support member and the second support member to drive the first support member and the second support member to move away from or towards each other.

[0013] In one embodiment, the adjusting member includes:

[0014] The fastener has a first fixing cavity and a second fixing cavity. The end of the first support member away from the first end is fixed in the first fixing cavity, and the end of the second support member away from the second end is fixed in the second fixing cavity.

[0015] A first reset member is disposed between the first fixed cavity and the first support member to drive the first support member to move away from the fixed member;

[0016] The second reset member is disposed between the second fixed cavity and the second support member to drive the second support member to move away from the fixed member.

[0017] In one embodiment, the fastener is threadedly connected to the first support member, and / or the fastener is threadedly connected to the second support member.

[0018] In one embodiment, the fastener includes a first connecting part and a second connecting part. The first connecting part is disposed in a first fixing cavity and is provided with a first external thread. The second connecting part is disposed in a second fixing cavity and is provided with a second external thread.

[0019] The first support member includes a first relief cavity, a first connecting part is disposed in the first relief cavity, and the inner wall of the first support member is provided with a first internal thread, which is threadedly connected to the first external thread.

[0020] The second support member includes a second relief cavity, a second connecting part is disposed in the second relief cavity, and the inner wall of the second support member is provided with a second internal thread, which is threadedly connected to the second external thread.

[0021] In one embodiment, the diameter of the first clearance cavity is not less than two-thirds of the outer diameter of the first support member;

[0022] And / or, the diameter of the second clearance cavity is not less than two-thirds of the outer diameter of the second support member.

[0023] In one embodiment, the fastener is a one-piece molded part.

[0024] In one embodiment, the beam body includes a flange and a web, a first chamfer is disposed between the flange and the web, and a portion of the reinforcing components covers the web.

[0025] The bridge reinforcement device also includes reinforcing ribs, some of which are set on the reinforcement components on the first chamfer, and some of which are fixed to the web.

[0026] In one embodiment, the bridge reinforcement device further includes:

[0027] Fastening components secure the reinforcing components to the first chamfer.

[0028] In one embodiment, the bridge reinforcement device includes multiple support mechanisms;

[0029] The beam body also has a second chamfered portion, on which a reinforcing component is provided. The second chamfered portion and the first chamfered portion are distributed at intervals along a second direction, which is perpendicular to the first direction. A support mechanism is provided between the two second chamfered portions.

[0030] In the aforementioned bridge reinforcement device, the first and second ends of the support mechanism respectively abut against the reinforcement components on the first chamfered portions of the two beam structures. This configuration allows the support mechanism to support the reinforcement components, enhancing the firmness of the connection between the reinforcement components and the beam body, solving the problem of insufficient anchorage length of the reinforcement components, preventing the reinforcement components from falling off the beam body, and thus ensuring the reinforcement effect and long-term effectiveness of the reinforcement. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of a bridge reinforcement device provided in one embodiment of this application;

[0032] Figure 2 This is a schematic diagram of the structure of the first support member provided in an embodiment of this application;

[0033] Figure 3 This is a structural schematic diagram of a fastener provided in an embodiment of this application.

[0034] Explanation of reference numerals in the attached figures:

[0035] 10. Beam structure;

[0036] 11. Beam body; 111. First chamfer; 112. Second chamfer; 113. Wing plate; 114. Web plate; 115. Horseshoe plate;

[0037] 12. Reinforcing component; 121. Reinforcing plate; 1211. First plate; 1212. Second plate; 1213. Third plate;

[0038] 20. Supporting institutions;

[0039] 21. First support member; 211. First end; 212. First clearance cavity; 213. First internal thread;

[0040] 22. Second support member; 221. Second end;

[0041] 23. Adjusting components;

[0042] 231. Fixing component; 2311. First fixing cavity; 2312. Second fixing cavity; 2313. First connecting part; 23131. First external thread; 2314. Second connecting part; 23141. Second external thread;

[0043] 30. Reinforcing ribs;

[0044] 40. Fastening components; 41. Anchor bolts; 42. Tie bolts. Detailed Implementation

[0045] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0046] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0047] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0049] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0050] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0051] See Figure 1 This application provides a bridge reinforcement device, which includes multiple beam structures 10 and a support structure 20. At least two beam structures 10 are spaced apart along a first direction. Each beam structure 10 includes a beam body 11 and a reinforcement component 12. The beam body 11 has a first chamfer 111, and the reinforcement component 12 at least covers the first chamfer 111 to reinforce it. The support structure 20 is disposed between the two beam structures 10 spaced apart along the first direction. The support structure 20 has a first end 211 and a second end 221 disposed opposite to each other. The first end 211 abuts against the reinforcement component 12 on one of the first chamfers 111, and the second end 221 abuts against the reinforcement component 12 on the other first chamfer 111. (See reference...) Figure 1 The X direction is the first direction, and the Y direction is the second direction.

[0052] Applying the technical solution of this application, the first end 211 and the second end 221 of the support mechanism 20 respectively abut against the reinforcing components 12 on the first chamfered portions 111 of the two beam mechanisms 10. With this configuration, the support mechanism 20 can support the reinforcing components 12, enhancing the firmness of the connection between the reinforcing components 12 and the beam body 11, solving the problem of insufficient anchorage length of the reinforcing components 12, preventing the reinforcing components 12 from falling off the beam body 11, thereby ensuring the reinforcement effect of the reinforcing components 12 and guaranteeing the long-term effectiveness of the reinforcement.

[0053] Furthermore, by adopting the above structure, when a vehicle is traveling on a single beam structure 10, the support structure 20 can transfer the load to another beam structure 10 connected through the support structure 20, thereby reducing the load on the single beam structure 10 and improving the overall load-bearing capacity of the bridge.

[0054] In some embodiments, the beam body 11 is a T-beam, and the beam body 11 includes a flange 113, a web 114, and a horseshoe 115 that are fixedly connected in sequence. The flange 113 is arranged in the transverse direction, the web 114 is arranged in the longitudinal direction, and the horseshoe 115 is a block structure. Furthermore, a first chamfer 111 is provided between the flange 113 and the web 114.

[0055] See Figure 1 and Figure 2 The support mechanism 20 includes a first support member 21, a second support member 22, and an adjusting member 23. One end of the first support member 21 is designated as a first end 211, and one end of the second support member 22 is designated as a second end 221. The adjusting member 23 is positioned between the first support member 21 and the second support member 22 to drive the first support member 21 and the second support member 22 to move away from or closer to each other. With this configuration, due to manufacturing errors, installation errors, or dimensional deviations of the bridge, the actual distance between the two beam structures 10 to be reinforced may fluctuate. By driving the first support member 21 and the second support member 22 to move away from or closer to each other using the adjusting member 23, the overall length of the support mechanism 20 can be adjusted, ensuring that the support mechanism 20 can tightly abut against the reinforcement components 12 at both ends. This ensures effective support under various actual working conditions and improves the versatility of the bridge reinforcement device.

[0056] In some embodiments, the adjusting member 23 simply drives the first support member 21 and the second support member 22 to move away from each other. In this way, the support mechanism 20 is always under pressure, and the support mechanism 20 can react more quickly when subjected to external loads, effectively suppressing the initial deformation of the beam body 11 and improving the timeliness and effectiveness of reinforcement.

[0057] In some embodiments, the first support member 21 and the second support member 22 are respectively welded and fixed to the corresponding reinforcement component 12.

[0058] In some embodiments, a support is fixed on the reinforcement component 12, and the first support member 21 and the second support member 22 are hinged and fixed to the support on the corresponding reinforcement component 12.

[0059] In some embodiments, the first support member 21 and the second support member 22 have the same structure.

[0060] See Figure 3 The adjusting member 23 includes a fixing member 231, a first resetting member, and a second resetting member. The fixing member 231 has a first fixing cavity 2311 and a second fixing cavity 2312. The end of the first support member 21 furthest from the first end 211 is fixed in the first fixing cavity 2311, and the end of the second support member 22 furthest from the second end 221 is fixed in the second fixing cavity 2312. The first resetting member is disposed between the first fixing cavity 2311 and the first support member 21 to drive the first support member 21 to move away from the fixing member 231. The second resetting member is disposed between the second fixing cavity 2312 and the second support member 22 to drive the second support member 22 to move away from the fixing member 231. This configuration allows the first and second resetting members to automatically compensate for the deformation of the beam body 11, ensuring that the support mechanism 20 and the reinforcement component 12 remain in contact at all times, thereby improving the support effect of the support mechanism 20 and enhancing the stability of the bridge reinforcement device. Furthermore, by providing the first fixing cavity 2311 and the second fixing cavity 2312, the ends of the first reset member and the second reset member, as well as the ends of the first support member 21 and the second support member 22, can be protected, preventing the above structure from being eroded by the external environment.

[0061] In some embodiments, both the first reset member and the second reset member are springs.

[0062] In some embodiments, the fastener 231 is threadedly connected to the first support 21.

[0063] In some embodiments, the fastener 231 is threadedly connected to the second support 22.

[0064] In some embodiments, the fixing member 231 is threadedly connected to the first support member 21, and the fixing member 231 is also threadedly connected to the second support member 22. This configuration ensures the connection strength between the fixing member 231 and the first and second support members 21 and 22, preventing loosening of the first and second support members 21 and 22, and further guaranteeing the support effect of the support mechanism 20. Furthermore, the threaded connection itself has a slight gap. Without the first and second reset members, the fixing member 231 and the first and second support members 21 and 22 might experience slight loosening or wobbling when subjected to a reverse force or vibration. When the first and second reset members are compressed, they generate a continuous thrust, but this thrust is locked by the threaded connection, thus transforming into a force of mutual pressing between the threads of the fixing member 231 and the first and second support members 21 and 22. This force eliminates the gap in the threaded pair, enhances the connection tightness, and reduces loosening and abnormal noise.

[0065] See Figure 3 The fixing member 231 includes a first connecting portion 2313 and a second connecting portion 2314. The first connecting portion 2313 is disposed within the first fixing cavity 2311 and has a first external thread 23131. The second connecting portion 2314 is disposed within the second fixing cavity 2312 and has a second external thread 23141. The first support member 21 includes a first clearance cavity 212. The first connecting portion 2313 is disposed within the first clearance cavity 212. The inner wall of the first support member 21 has a first internal thread 213, which is threadedly connected to the first external thread 23131. The second support member 22 includes a second clearance cavity. The second connecting portion 2314 is disposed within the second clearance cavity. The inner wall of the second support member 22 has a second internal thread, which is threadedly connected to the second external thread 23141. This design facilitates the assembly of the fastener 231, the first support 21, and the second support 22. The clear internal and external thread fit also provides a clear guide for assembly, making it easy for workers to assemble quickly and accurately.

[0066] In some embodiments, one end of the first reset member abuts against the first connecting portion 2313, and the other end of the first reset member abuts against the inner wall of the first clearance cavity 212.

[0067] In some embodiments, one end of the second reset member abuts against the second connecting portion 2314, and the other end of the second reset member abuts against the inner wall of the second clearance cavity.

[0068] In some embodiments, one end of the first reset member abuts against the inner wall of the first fixing cavity 2311, and the other end of the first reset member abuts against the end of the first support member 21.

[0069] In some embodiments, one end of the second reset member abuts against the inner wall of the second fixing cavity 2312, and the other end of the second reset member abuts against the end of the second support member 22.

[0070] In some embodiments, the fastener 231 is provided with an injection port for injecting adhesive into the first fixing cavity 2311 and the second fixing cavity 2312. After the adhesive is injected, the injection port can be sealed by a simple one-way valve or by applying other curing agents to the surface.

[0071] In some embodiments, the diameter of the first clearance cavity 212 is not less than two-thirds of the outer diameter of the first support member 21.

[0072] In some embodiments, the diameter of the second clearance cavity is not less than two-thirds of the outer diameter of the second support member 22.

[0073] In some embodiments, the diameter of the first clearance cavity 212 is not less than two-thirds of the outer diameter of the first support member 21, and the diameter of the second clearance cavity is not less than two-thirds of the outer diameter of the second support member 22. This configuration increases the diameter of the first internal thread 213 and the second internal thread, thereby enabling the first support member 21 and the second support member 22 to withstand greater loads and improving the strength and durability of the threaded connections between the first connecting portion 2313 and the second connecting portion 2314 and the first support member 21 and the second support member 22, respectively.

[0074] Specifically, the fastener 231 is a one-piece molded part. This design can avoid potential stress concentration points on the fastener 231, improve the uniformity of stress distribution when the fastener 231 is under load, thereby improving the overall strength and structural stiffness of the fastener 231, and thus improving the load-bearing capacity and service life of the fastener 231.

[0075] See Figure 1 The beam body 11 includes a flange 113 and a web 114. A first chamfer 111 is disposed between the flange 113 and the web 114, and a portion of the reinforcing component 12 covers the web 114. The bridge reinforcement device also includes reinforcing ribs 30, some of which are disposed on the reinforcing component 12 on the first chamfer 111, and some of which are fixed to the web. This arrangement can further improve the structural strength of the reinforcing component 12, further prevent the reinforcing component 12 from falling off, and at the same time improve the reinforcement effect of the beam body 11.

[0076] See Figure 2The bridge reinforcement device includes multiple support mechanisms 20. The beam body 11 also has a second chamfered portion 112, on which a reinforcement component 12 is provided. The second chamfered portion 112 and the first chamfered portion 111 are spaced apart along a second direction, which is perpendicular to the first direction. A support mechanism 20 is provided between the two second chamfered portions 112. Specifically, one support mechanism 20 is positioned between two beam body mechanisms 10 spaced apart along the first direction, with its first end 211 abutting against the reinforcement component 12 on one of the second chamfered portions 112, and its second end 221 abutting against the reinforcement component 12 on the other second chamfered portion 112. This arrangement simultaneously supports and reinforces the first chamfered portion 111 and the second chamfered portion 112, thereby reinforcing multiple key stress-bearing parts of the beam body 11, achieving a more comprehensive reinforcement effect, enhancing the overall stability of the bridge, effectively resisting loads from different directions, and improving the overall load-bearing capacity of the bridge.

[0077] In some embodiments, a second chamfer 112 is provided between the web 114 and the horseshoe 115.

[0078] In some embodiments, the reinforcing assembly 12 includes at least two reinforcing plates 121, which are respectively fixed to both sides of the beam body 11 along a first direction. One end of the reinforcing plate 121 is located at the first chamfer 111, and the other end of the reinforcing plate 121 extends to the second chamfer 112. Furthermore, the reinforcing plate 121 is provided with a bending structure so that the reinforcing plate 121 contacts the first chamfer 111, the web 114, and the second chamfer 112.

[0079] In some embodiments, the reinforcing plate 121 is made of metal.

[0080] In some embodiments, the reinforcing plate 121 includes a first plate 1211, a second plate 1212, and a third plate 1213 connected in sequence. The first plate 1211 and the second plate 1212 have an angle between them, and the third plate 1213 and the second plate 1212 have an angle between them. The first plate 1211 is fixed to the first chamfered portion 111, the second plate 1212 is fixed to the web 114, and the third plate 1213 is fixed to the second chamfered portion 112.

[0081] In some embodiments, the bridge reinforcement device includes a plurality of reinforcing ribs 30, some of which are fixed to the first chamfered portion 111, i.e., a portion of the reinforcing rib 30 is located on the first plate 1211 and the other portion of the reinforcing rib 30 is located on the second plate 1212; the remaining reinforcing ribs 30 are located on the second chamfered portion 112, i.e., a portion of the reinforcing rib 30 is located on the third plate 1213 and the other portion of the reinforcing rib 30 is located on the second plate 1212.

[0082] SeeFigure 1 The bridge reinforcement device also includes a fastening component 40, which fixes the reinforcement component 12 to the first chamfered portion 111. This arrangement anchors the reinforcement component 12 to the beam body 11, ensuring the reliability and durability of the connection between the reinforcement component 12 and the beam body 11, and preventing the reinforcement component 12 from falling off under external disturbances.

[0083] In some embodiments, the fastening assembly 40 includes a plurality of anchor bolts 41 and a plurality of tie bolts 42. The anchor bolts 41 secure the reinforcing plate 121 to the first chamfered portion 111 and the second chamfered portion 112. The tie bolts 42 pass through the web 114 and the two reinforcing plates 121 to secure the reinforcing plate 121 to the web 114. The tie bolts 42 are capable of applying a greater preload, generating a compressive force between the web 114 and the two reinforcing plates 121, thereby generating greater friction perpendicular to the screw direction and providing overall installation strength.

[0084] In some embodiments, the reinforcing plate 121 can be first attached to the web plate 114 and then fixed by the fastening assembly 40.

[0085] In some embodiments, the construction process of the reinforcing plate 121 is as follows: site preparation, scaffolding erection, surface cleaning and treatment of the beam body 11, crack repair of the beam body 11, rebar installation, installation of steel components and reinforcing plate 121, steel bonding adhesive injection, other operations, addition of drip edge, removal of scaffolding and site preparation.

[0086] To ensure the quality of the adhesive grouting for the reinforcement plate 121, the relevant construction should be carried out during the designated maintenance window, and the bridge deck should be free of traffic for no less than 120 minutes after the adhesive grouting is completed. Simultaneously, the relevant construction should be carried out when the air temperature is not lower than 5℃.

[0087] The construction process for beam reinforcement plate 121 is as follows:

[0088] Concrete surface treatment: According to the design drawings and combined with on-site measurement and positioning, mark the position of reinforcement plate 121 on the surface of the concrete to be reinforced with steel. Remove 2-5mm thick layer of surface mortar from the concrete surface of the area to be reinforced with steel, so that the solid concrete stone is exposed and a smooth rough surface is formed. Use a pointed chisel to lightly chisel and level the uneven surface, then use a wire brush to roughen the surface and remove loose material. Finally, blow away the surface dust with oil-free compressed air or rinse with clean water. After it is completely dry, wipe the surface with degreased cotton soaked in acetone.

[0089] Drilling and embedding bolts: Mark the locations for drilling according to the design drawings. During construction, a reinforced concrete cover tester can be used to determine the arrangement of reinforcing bars within the concrete before drilling. Care should be taken to avoid contact with the reinforcing bars during drilling. The distance between the embedded threaded bolt and the edge of the reinforcing plate 121 should be controlled between 5 and 10 cm.

[0090] Installation of Reinforcing Plate 121: Based on the actual layout on the concrete surface, cut the reinforcing plate 121 to size. Drill holes in the reinforcing plate 121 to be injected, matching the holes to the pre-installed bolts. Then, use a sandblasting machine to remove rust and roughen the surface of the reinforcing plate 121; the roughness should be as high as possible, and the sanding lines should be perpendicular to the direction of force on the reinforcing plate 121. Wipe the surface of the steel plate clean with acetone-soaked cotton. Fix the reinforcing plate 121 to the bolts, ensuring a gap of approximately 3mm between the reinforcing plate 121 and the concrete surface, and ensuring the thickness of the injected adhesive layer is between 3 and 5mm.

[0091] Prepare the structural adhesive: Prepare the structural adhesive according to the proportions specified in the product instructions provided by the supplier. The steel bonding and grouting adhesive should be prepared and used only after the edge sealing is completed and the 121 edge sealing adhesive on the reinforcing plate has fully cured and reached sufficient strength.

[0092] Edge sealing: Attach the injection nozzle to the injection hole of the reinforcing plate 121, insert the vent pipe into the edge of the reinforcing plate 121, cover the expansion bolt head with a cap cup, and then seal the edge of the reinforcing plate 121 with edge sealing adhesive to complete the edge sealing. The spacing between injection nozzles is 2-3m.

[0093] Injection: Use a pump to inject the bonding adhesive into the gaps between the reinforcing plate 121 and the concrete through the injection nozzle. Injection continues until adhesive flows from all vent pipes. During injection, tap the reinforcing plate 121 with a rubber mallet to confirm compaction. Before grouting, a pressure test is required. Inject the bonding adhesive into the injection nozzle at a pressure of 0.2–0.4 MPa. Stop pressurizing when grout appears in the vent holes, seal the holes with the edge sealant of the reinforcing plate 121, and then maintain a lower pressure for at least 10 minutes.

[0094] The time between the completion of the installation of the reinforcing plate 121 and the injection of the adhesive for steel bonding shall not exceed 24 hours to ensure the bonding effect of the reinforcing plate 121.

[0095] Anti-corrosion treatment of the surface of the reinforcing plate 121: After the reinforcing plate 121 is confirmed to be firmly bonded and cured, all injection nozzles and exhaust pipes are removed, and dirt on the surface of the reinforcing plate 121 is cleaned. Anti-corrosion coating is applied to the local reinforcing plate 121 and anchor bolts 41 where the coating is damaged.

[0096] Installation of Support Mechanism 20: The rigid connection between the first support member 21 and the second support member 22 and the reinforcing plate 121 makes the support mechanism 20 transverse. At this time, the distance between the first support member 21 and the second support member 22 at the same height is less than that between the adjusting member 23. A first spring is placed in the first fixed cavity 2311, and a second spring is placed in the second fixed cavity 2312. The first support member 21 and the second support member 22 are rotated simultaneously to tighten them to the fixing member 231 until they cannot be further tightened by manual rotation in one direction. Then, a pneumatic or electric wrench is used to further tighten the adjusting member 23 until it is locked in one direction. The entire installation is now complete.

[0097] In some embodiments, the reinforcing plate 121 is made of Q235D grade steel with a thickness of 8mm and is bonded by pressure injection adhesive method. Before bonding the reinforcing plate 121, the concrete base surface should be roughened and cleaned.

[0098] In some embodiments, the reinforcing plate 121 is fixed by S8.8 grade M12 tie bolts 42 and M12 chemical anchors, the chemical bolts being the anchor bolts 41; the surface of the reinforcing plate 121 is protected by the second coating system specified in Q / CR749.3-2020, and the anchor bolts 41 and tie bolts 42 should be subjected to multi-element alloy co-diffusion + passivation anti-corrosion treatment before installation.

[0099] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0100] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A bridge reinforcement device, characterized in that, The bridge reinforcement device includes: Multiple beam structures (10), at least two of the beam structures (10) are spaced apart along a first direction, each beam structure (10) includes a beam body (11) and a reinforcing component (12), the beam body (11) has a first chamfer (111), and the reinforcing component (12) at least covers the first chamfer (111) to reinforce the first chamfer (111); A support mechanism (20) is disposed between two beam mechanisms (10) spaced apart along the first direction. The support mechanism (20) has a first end (211) and a second end (221) disposed opposite to each other. The first end (211) abuts against a reinforcing component (12) on one of the first chamfered portions (111), and the second end (221) abuts against a reinforcing component (12) on the other first chamfered portion (111).

2. The bridge reinforcement device according to claim 1, characterized in that, The support mechanism (20) includes: First support member (21), one end of the first support member (21) is the first end (211); The second support member (22) has one end as the second end (221). An adjusting member (23) is disposed between the first support member (21) and the second support member (22) to drive the first support member (21) and the second support member (22) to move away from or closer to each other.

3. The bridge reinforcement device according to claim 2, characterized in that, The adjusting element (23) includes: The fastener (231) has a first fixing cavity (2311) and a second fixing cavity (2312). The end of the first support member (21) away from the first end (211) is fixed in the first fixing cavity (2311), and the end of the second support member (22) away from the second end (221) is fixed in the second fixing cavity (2312). A first reset member is disposed between the first fixed cavity (2311) and the first support member (21) to drive the first support member (21) to move away from the fixed member (231); The second reset member is disposed between the second fixed cavity (2312) and the second support member (22) to drive the second support member (22) to move away from the fixed member (231).

4. The bridge reinforcement device according to claim 3, characterized in that, The fastener (231) is threadedly connected to the first support member (21), and / or the fastener (231) is threadedly connected to the second support member (22).

5. The bridge reinforcement device according to claim 3, characterized in that, The fastener (231) includes a first connecting part (2313) and a second connecting part (2314). The first connecting part (2313) is disposed in the first fixing cavity (2311) and is provided with a first external thread (23131). The second connecting part (2314) is disposed in the second fixing cavity (2312) and is provided with a second external thread (23141). The first support member (21) includes a first relief cavity (212), the first connecting part (2313) is disposed in the first relief cavity (212), and the inner wall of the first support member (21) is provided with a first internal thread (213), which is threadedly connected to the first external thread (23131). The second support member (22) includes a second relief cavity, the second connecting part (2314) is disposed in the second relief cavity, the inner wall of the second support member (22) is provided with a second internal thread, and the second internal thread is threadedly connected to the second external thread (23141).

6. The bridge reinforcement device according to claim 5, characterized in that, The diameter of the first clearance cavity (212) is not less than two-thirds of the outer diameter of the first support member (21); And / or, the diameter of the second clearance cavity is not less than two-thirds of the outer diameter of the second support member (22).

7. The bridge reinforcement device according to claim 3, characterized in that, The fastener (231) is a one-piece molded part.

8. The bridge reinforcement device according to claim 1, characterized in that, The beam body (11) includes a flange (113) and a web (114), the first chamfer (111) is disposed between the flange (113) and the web (114), and part of the reinforcing component (12) covers the web (114). The bridge reinforcement device also includes reinforcing ribs (30), some of which are provided on the first chamfered portion (111) of the reinforcement assembly (12), and some of which are fixed on the web plate (114) of the reinforcement assembly (12).

9. The bridge reinforcement device according to claim 1, characterized in that, The bridge reinforcement device also includes: Fastening assembly (40) secures the reinforcing assembly (12) to the first chamfer (111).

10. The bridge reinforcement device according to claim 1, characterized in that, The bridge reinforcement device includes multiple support mechanisms (20); The beam body (11) also has a second chamfer (112), on which the reinforcing component (12) is provided. The second chamfer (112) and the first chamfer (111) are distributed at intervals along a second direction, which is perpendicular to the first direction. The support mechanism (20) is provided between the two second chamfers (112).

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