Bridge reinforcement structure

Abstract

This utility model relates to the field of bridge reinforcement technology, specifically to a bridge reinforcement structure, including a cylinder fitted onto the outer wall of a pier-pile connection section. The cylinder includes a first cylinder plate and a second cylinder plate, which partially overlap. The first cylinder plate has a first crest section and a first trough section along the height direction of the pier-pile connection section, with the first crest section and the first trough section spaced apart. The second cylinder plate has a second crest section adapted to the first crest section and a second trough section adapted to the first trough section. The bottom of the cylinder has a lower sealing plate fitted onto the outer wall of the pier-pile connection section. In this utility model, the cylinder forms a corrugated structure by setting crest sections and trough sections, which can improve its energy dissipation capacity and stress buffering capacity. Furthermore, the crest sections and trough sections can increase the geometric moment of inertia of the cylinder, thereby improving the circumferential stiffness of the pier-pile connection section and further improving the structural stability of the pier-pile connection section.

Description

Technical Field

[0001] This utility model relates to the field of bridge reinforcement technology, and in particular to a bridge reinforcement structure. Background Technology

[0002] In the structural design of traditional simply supported beam bridges, the "single pier, single pile" configuration is widely adopted, meaning that the pier and pile foundation, as well as the pier and cap beam, are independently connected. While this structural form offers high flexibility and convenience during construction, facilitating segmented work and on-site assembly, it suffers from poor structural continuity. Inconsistent stiffness between the pier and pile foundation leads to uneven force distribution within the connection area. During actual operation, especially under extreme loads such as earthquakes, this connection area often bears the combined effects of axial force, bending moment, shear force, and torque, creating a complex stress state and making it highly susceptible to becoming the first critical part of the entire bridge structure to fail.

[0003] Furthermore, the connection between bridge piers and cap beams is typically located in the plastic hinge region of the structure. Due to the inconsistency in the stiffness of the connection structure, the stress condition is more complex, making it more prone to yielding, cracking, or even localized failure under dynamic loads such as earthquakes. During long-term service, under the influence of natural environmental factors (such as temperature variations and rainfall erosion) and repeated traffic loads, the connection area between bridge piers and pile foundations is susceptible to structural defects such as exposed steel reinforcement corrosion, component misalignment, cracking, and deformation.

[0004] These problems not only weaken the load-bearing capacity of bridge components, but may also lead to pier instability and pile foundation damage under the action of disasters, thereby causing bridge displacement or collapse, seriously threatening the overall structural safety of the bridge. Utility Model Content

[0005] The purpose of this invention is to overcome the problem that traditional simply supported beam bridges, which are all equipped with single piers and single piles, suffer from poor structural stability when subjected to loads, especially seismic loads, and to provide a bridge reinforcement structure.

[0006] In a first aspect, the present invention provides a bridge reinforcement structure, including a cylinder sleeved on the outer wall of the pier-pile connection section. The cylinder includes a first cylinder plate and a second cylinder plate, the first cylinder plate and the second cylinder plate partially overlapping each other. The first cylinder plate is provided with a first crest section and a first trough section along the height direction of the pier-pile connection section, the first crest section and the first trough section being spaced apart. The second cylinder plate is provided with a second crest section adapted to the first crest section and a second trough section adapted to the first trough section.

[0007] The bottom of the cylinder is provided with a lower sealing plate, which is sleeved with the outer wall of the pier pile connecting section;

[0008] The first cylindrical plate and the second cylindrical plate are connected by bolts at their overlapping positions.

[0009] In this application, the pier-pile connection section refers to the connection section when the pier and the pile foundation are connected.

[0010] This utility model provides a bridge reinforcement structure. A cylindrical sleeve is fitted over the pier-pile connection section, and this cylinder is formed by splicing a first cylindrical plate and a second cylindrical plate, facilitating installation by construction personnel. The first cylindrical plate has a first crest section and a first trough section, and the second cylindrical plate correspondingly has a second crest section and a second trough section. The first and second cylindrical plates partially overlap to form a cylinder. Since both the first and second cylindrical plates have crest sections and trough sections, when the first and second cylindrical plates are connected to form a cylinder, the cylinder also has spaced crest sections and trough sections. Compared to the traditional straight cylinder structure, the cylinder in this utility model, by setting crest sections and trough sections to form a corrugated structure, can improve its energy dissipation capacity and stress buffering capacity. Furthermore, through the crest sections and trough sections forming a corrugated structure, it can improve its energy dissipation capacity and stress buffering capacity. The corrugated sections increase the geometric moment of inertia of the cylinder, thereby improving the circumferential stiffness of the pier-pile connection section, which in turn enhances its bearing capacity and failure ductility, further improving the structural stability of the pier-pile connection section. Since both the first and second cylindrical plates have corrugated and trough sections, when the first and second cylindrical plates are connected to form a cylinder, the cylinder also has alternating corrugated and trough sections. This allows the corrugated structure (i.e., alternating corrugated and trough sections) to effectively disperse and buffer the energy brought by seismic waves under seismic loads. Specifically, the corrugated structure allows the cylinder to deform along the vertical direction of the pier during deformation, generating an energy dissipation effect, thereby reducing the impact force of seismic loads on the connection part of the pier-pile connection section. This invention also increases the contact area between the cylinder and the concrete inside the cylinder through the corrugated structure, increasing its constraint capacity on the concrete inside the cylinder and improving the circumferential stiffness of the pier-pile connection section, thus enhancing the cylinder's resistance to deformation.

[0011] Preferably, the first crest segment and the first trough segment are arranged at intervals on the first cylindrical plate along the axial direction of the pier connection segment;

[0012] The second crest segment and the second trough segment are arranged at intervals on the second cylinder plate along the axial direction of the pier connection segment.

[0013] Preferably, the first cylindrical plate is provided with a first connecting hole, which is located at the overlap of the first cylindrical plate and the second cylindrical plate, and the second cylindrical plate is provided with a second connecting hole, the size and position of which are adapted to the size and position of the first connecting hole.

[0014] By setting a first connecting hole on the first cylindrical plate and a second connecting hole on the second cylindrical plate, subsequent construction workers can assemble the first and second cylindrical plates through the first and second connecting holes.

[0015] Preferably, the top of the cylinder is provided with an upper sealing plate, and the upper sealing plate is vertically provided with a grouting hole and a grouting outlet hole, both of which are connected to the cylinder.

[0016] By setting an upper sealing plate at the top of the cylinder, and setting grouting holes and grout outlet holes on the upper sealing plate that communicate with the inside of the cylinder, it is convenient for subsequent construction personnel to grout the inside of the cylinder through the grouting holes, and the grout outlet holes are set to facilitate construction personnel to observe the grout volume inside the cylinder (grouting is completed when grout emerges from the grout outlet holes).

[0017] Preferably, the upper sealing plate includes a first upper sealing plate, the bottom of which is connected to the top of the first cylindrical plate, and the upper sealing plate further includes a second upper sealing plate, the bottom of which is connected to the top of the second cylindrical plate.

[0018] The upper sealing plate is divided into a first upper sealing plate and a second upper sealing plate, making the upper sealing plate a splicable structure that allows for modular installation.

[0019] Preferably, the first upper sealing plate is provided with a first connecting plate that fits against the outer wall of the pier connecting section, and the second upper sealing plate is provided with a second connecting plate that fits against the outer wall of the pier connecting section. The first connecting plate and the second connecting plate can clamp the pier connecting section.

[0020] Preferably, both the first connecting plate and the second connecting plate are provided with bolt holes, which are opened along the radial direction of the cylinder.

[0021] By providing bolt holes along the radial direction of the cylinder on the first and second connecting plates, expansion bolts can be installed into the pier-pile connection section through the bolt holes when the first and second connecting plates are in contact with the outer wall of the pier-pile connection section. This allows both the first and second connecting plates to be connected to the pier-pile connection section, thereby improving the connection stability between the bridge reinforcement device and the pier-pile connection section.

[0022] Preferably, the lower sealing plate is formed by splicing a first annular plate and a second annular plate. A first through groove is vertically formed on the first annular plate, and a second through groove is vertically formed on the second annular plate. The first through groove and the second through groove form the mounting groove.

[0023] Preferably, a third connecting plate is provided below the first annular plate, the third connecting plate being arranged along the contour of the first through groove, and a fourth connecting plate is provided below the second annular plate, the fourth connecting plate being arranged along the contour of the second through groove. After the third connecting plate and the fourth connecting plate are spliced ​​together, they can fit against the outer wall of the pier connection section. The third connecting plate and the fourth connecting plate are also provided with bolt holes, the bolt holes being opened along the radial direction of the cylinder.

[0024] By setting bolt holes on the third and fourth connecting plates, construction workers can install expansion bolts through the bolt holes after the third and fourth connecting plates are attached to the outer wall of the pier pile, thereby improving the connection stability between the bridge reinforcement device and the pier pile connection section.

[0025] Preferably, both the lower sealing plate and the upper sealing plate are welded to the cylinder.

[0026] Preferably, the pier-pile connection reinforcement structure is located at the connection between the pile foundation and the pier body of the bridge.

[0027] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0028] 1. This utility model provides a bridge reinforcement structure. A cylindrical sleeve is fitted over the pier-pile connection section, and this cylinder is formed by splicing a first cylindrical plate and a second cylindrical plate, facilitating installation by construction personnel. The first cylindrical plate has a first crest section and a first trough section, and the second cylindrical plate correspondingly has a second crest section and a second trough section. The first and second cylindrical plates partially overlap to form a cylinder. Since both the first and second cylindrical plates have crest sections and trough sections, when the first and second cylindrical plates are connected to form a cylinder, the cylinder also has spaced crest sections and trough sections. Compared to the traditional straight cylinder structure, the cylinder in this utility model, by setting crest sections and trough sections to form a corrugated structure, can improve its energy dissipation capacity and stress buffering capacity. Furthermore, through the crest sections… The corrugated sections increase the geometric moment of inertia of the cylinder, thereby improving the circumferential stiffness of the pier-pile connection section, which in turn enhances its bearing capacity and failure ductility, further improving the structural stability of the pier-pile connection section. Since both the first and second cylindrical plates have corrugated and trough sections, when the first and second cylindrical plates are connected to form a cylinder, the cylinder also has these alternating corrugated and trough sections. Under seismic loads, the corrugated structure (i.e., alternating corrugated and trough sections) effectively disperses and buffers the energy brought by seismic waves. Specifically, the corrugated structure allows the cylinder to deform along the vertical direction of the pier during deformation, generating an energy dissipation effect, thereby reducing the impact force of seismic loads on the connection part of the pier-pile connection section. This invention also increases the contact area between the cylinder and the concrete inside the cylinder through the corrugated structure, increasing its constraint capacity on the concrete inside the cylinder and improving the circumferential stiffness of the pier-pile connection section, thus enhancing the cylinder's resistance to deformation.

[0029] 2. This utility model provides a bridge reinforcement structure. The structure is simple, consisting of two cylindrical plates with crest and trough sections. The two plates are arranged opposite each other, with the crest and trough sections staggered to create a nested connection, thereby improving the structure's shear resistance and stability. Bolts pass through corresponding connection holes to firmly fix the two plates together, forming an integrated bridge reinforcement unit. This structure not only facilitates construction and disassembly but also allows for flexible adjustment of the number and spacing of connection points according to actual stress conditions, further enhancing the reinforcement effect. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the bridge reinforcement structure of this utility model;

[0031] Figure 2 This is a side view of the bridge reinforcement structure of this utility model;

[0032] Figure 3 This is a schematic diagram of the structure of the first cylindrical plate of this utility model;

[0033] Figure 4 In this utility model Figure 3 Enlarged view of point A;

[0034] Figure 5 This is a schematic diagram of the structure of the second cylindrical plate of this utility model;

[0035] Figure 6 In this utility model Figure 5 Enlarged view of point B;

[0036] Figure 7 This is a schematic diagram of the upper sealing plate in this utility model;

[0037] Figure 8 This is a schematic diagram of the lower sealing plate in this utility model;

[0038] Figure 9 This is a bottom view of the lower sealing plate in this utility model;

[0039] Figure 10 This is a schematic diagram showing the connection between the bridge reinforcement structure and the pier and pile foundation in this utility model;

[0040] Figure 11 In this utility model Figure 10 Enlarged view of point C;

[0041] Figure 12 This is a schematic diagram of the bridge reinforcement structure when the pier body is rectangular in this utility model;

[0042] Figure 13 This is a schematic diagram showing the connection between the bridge reinforcement structure and the pier body and the cap beam in this utility model.

[0043] Figure 14 This is a schematic diagram showing the connection between the bridge reinforcement structure and the pier body in this utility model.

[0044] Markings in the diagram: 1-Cylinder; 11-First cylindrical plate; 111-First crest section; 112-First trough section; 113-First connecting hole; 12-Second cylindrical plate; 121-Second crest section; 122-Second trough section; 123-Second connecting hole; 2-Lower sealing plate; 21-Installation groove; 22-First annular plate; 221-Third connecting plate; 23-Second annular plate; 231-Fourth connecting plate; 3-Upper sealing plate; 31-Grouting hole; 32-Grouting hole; 33-First upper sealing plate; 331-First connecting plate; 34-Second upper sealing plate; 341-Second connecting plate; 4-Bolt hole; 5-Pier body; 6-Pile foundation; 7-Cap beam. Detailed Implementation

[0045] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0046] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0047] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0048] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0049] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0050] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0051] Example 1

[0052] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The bridge reinforcement structure shown includes a cylinder 1 sleeved on the outer wall of the pier-pile connection section (i.e., the connection section between the pier body 5 and the pile body 6). The cylinder 1 includes a first cylinder plate 11 and a second cylinder plate 12, which partially overlap. The first cylinder plate 11 is provided with a first crest section 111 and a first trough section 112 along the height direction of the pier-pile connection section. The first crest section 111 and the first trough section 112 are spaced apart. The second cylinder plate 12 is provided with a second crest section 121 adapted to the first crest section 111 and a second trough section 122 adapted to the first trough section 112.

[0053] The bottom of the cylinder 1 is provided with a lower sealing plate 2. The center of the lower sealing plate 2 is provided with an installation groove 21 communicating with the cylinder 1. The inner wall of the installation groove 21 is fitted with the outer wall of the pier pile connection section, and a sealing element is provided between the installation groove 21 and the pier pile connection section. The cylinder 1 is formed by splicing a first cylinder plate 11 and a second cylinder plate 12, facilitating installation by construction personnel. The first cylinder plate 11 is provided with a first crest section 111 and a first trough section 112, and the second cylinder plate 12 is correspondingly provided with a second crest section 121 and a second trough section 122. The first cylinder plate 11 and the second cylinder plate 12 partially overlap to form the cylinder 1. Since both the first cylinder plate 11 and the second cylinder plate 12 are provided with crests… When the first cylindrical plate 11 and the second cylindrical plate 12 are connected to form a cylindrical cylinder 1, the cylindrical cylinder 1 also has corrugated sections and trough sections arranged at intervals. Compared with the traditional straight cylinder structure, the cylindrical cylinder 1 in this utility model has a corrugated structure formed by setting corrugated sections and trough sections, which can improve its energy dissipation capacity and stress buffering capacity. In addition, the corrugated sections and trough sections can improve the geometric moment of inertia of the cylindrical cylinder 1, thereby improving the circumferential stiffness of the pier connection section, thereby improving the bearing capacity and failure ductility of the pier connection section. Furthermore, by setting corrugated sections and trough sections, the entire cylindrical cylinder 1 presents a corrugated structure, which can reduce the material consumption during the manufacture of the cylindrical cylinder 1, thereby reducing the construction cost.

[0054] Furthermore, the first crest segment 111 and the first trough segment 112 are arranged at intervals on the first cylindrical plate 11 along the axial direction of the pier connection segment;

[0055] The second crest segment 121 and the second trough segment 122 are arranged at intervals on the second cylinder plate 12 along the axial direction of the pier connection segment.

[0056] The reinforcement device in this application can be installed at the connection between the bridge pier body 5 and the pile foundation 6 to improve the force transmission effect; it can also be installed at the connection between the bridge cap beam 7 and the bridge pier body 5, and when damage occurs to the surface of the bridge pier body 5, the reinforcement device can seal the damaged area. Figure 10 , Figure 11 and Figure 13 and Figure 14 As shown.

[0057] In one or more embodiments, the first cylindrical plate 11 is provided with a first connecting hole 113, which is located at the overlap of the first cylindrical plate 11 and the second cylindrical plate 12. The second cylindrical plate 12 is provided with a second connecting hole 123, the size and position of which are adapted to the size and position of the first connecting hole 113. By providing the first connecting hole 113 on the first cylindrical plate 11 and the second connecting hole 123 on the second cylindrical plate 12, subsequent construction personnel can assemble the first cylindrical plate 11 and the second cylindrical plate 12 through the first connecting hole 113 and the second connecting hole 123. Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown.

[0058] In one or more embodiments, a top sealing plate 3 is provided at the top of the cylinder 1. A grouting hole 31 and a grout outlet hole 32 are vertically formed on the top sealing plate 3. Both the grouting hole 31 and the grout outlet hole 32 are connected to the cylinder 1. By providing a top sealing plate 3 at the top of the cylinder 1, and providing the grouting hole 31 and the grout outlet hole 32 connected to the inside of the cylinder 1, it is convenient for subsequent construction personnel to grout the inside of the cylinder 1 through the grouting hole 31, and to observe the grout volume inside the cylinder 1 through the grout outlet hole 32 (grouting is complete when grout emerges from the grout outlet hole 32). Figure 1 and Figure 7 As shown.

[0059] In one or more embodiments, the upper sealing plate 3 includes a first upper sealing plate 33, the bottom of which is connected to the top of the first cylindrical plate 11. The upper sealing plate 3 also includes a second upper sealing plate 34, the bottom of which is connected to the top of the second cylindrical plate 12. Dividing the upper sealing plate 3 into the first upper sealing plate 33 and the second upper sealing plate 34 makes the upper sealing plate 3 a connectable structure, allowing for modular installation. Figure 1 and Figure 7 As shown.

[0060] In one or more embodiments, the first upper sealing plate 33 is provided with a first connecting plate 331 that fits against the outer wall of the pier pile connecting section, and the second upper sealing plate 34 is provided with a second connecting plate 341 that fits against the outer wall of the pier pile connecting section. The first connecting plate 331 and the second connecting plate 341 can clamp the pier pile connecting section. Figure 7 As shown.

[0061] In one or more embodiments, both the first connecting plate 331 and the second connecting plate 341 are provided with bolt holes 4. The bolt holes 4 are opened along the radial direction of the cylinder 1. Through the bolt holes 4 opened along the radial direction of the cylinder 1 on the first connecting plate 331 and the second connecting plate 341, expansion bolts can be installed into the pier-pile connection section through the bolt holes 4 when the first connecting plate 331 and the second connecting plate 341 are in contact with the outer wall of the pier-pile connection section. This allows both the first connecting plate 331 and the second connecting plate 341 to be connected to the pier-pile connection section, thereby improving the connection stability between the bridge reinforcement device and the pier-pile connection section. Figure 7 As shown.

[0062] In one or more embodiments, the lower sealing plate 2 is formed by splicing a first annular plate 22 and a second annular plate 23. A first through groove is vertically formed on the first annular plate 22, and a second through groove is vertically formed on the second annular plate 23. The first through groove and the second through groove constitute an installation groove 21. Figure 8 and Figure 9 As shown.

[0063] In one or more embodiments, a third connecting plate 221 is provided below the first annular plate 22, and the third connecting plate 221 is arranged along the contour of the first through groove. A fourth connecting plate 231 is provided below the second annular plate 23, and the fourth connecting plate 231 is arranged along the contour of the second through groove. After the third connecting plate 221 and the fourth connecting plate 231 are spliced ​​together, they can fit against the outer wall of the pier-pile connection section. Bolt holes 4 are also provided on the third connecting plate 221 and the fourth connecting plate 231. The bolt holes 4 are opened along the radial direction of the cylinder 1. By providing bolt holes 4 on the third connecting plate 221 and the fourth connecting plate 231, after the third connecting plate 221 and the fourth connecting plate 231 fit against the outer wall of the pier-pile connection section, construction personnel can install expansion bolts through the bolt holes 4, thereby improving the connection stability between the bridge reinforcement device and the pier-pile connection section. Figure 8 and Figure 9 As shown.

[0064] In one or more embodiments, both the lower sealing plate 2 and the upper sealing plate 3 are welded to the cylinder 1.

[0065] In one or more embodiments, the bridge reinforcement device is installed at the connection between the bridge pile foundation 6 and the pier body 5, such as... Figure 10 and Figure 11 As shown.

[0066] The table below shows the deformation and internal force results of the main girder of the bridge under the same seismic load, with and without the reinforcement structure of this utility model installed at the pier-pile connection section.

[0067] Table 1. Deformation results of the main beam (unit: mm)

[0068]

[0069] Table 2. Internal force results of the main beam (unit: kN·m)

[0070]

[0071] As shown in the table above, when the bridge is equipped with the reinforcement structure of this utility model, the maximum deformation of the main beam under longitudinal seismic load is 740.3 mm and the minimum is -766.8 mm. However, when the bridge is not equipped with the reinforcement structure of this utility model, the maximum deformation of the main beam under the same longitudinal seismic load is 872.1 mm and the minimum is -907.4 mm. The maximum value is reduced by 17.8% and the minimum value is reduced by 18.3%. When the bridge is equipped with the reinforcement structure of this utility model, the maximum deformation of the main beam is 392.4 mm and the minimum is -393.4 mm. However, when the bridge is not equipped with the reinforcement structure of this utility model, the maximum deformation of the main beam under the same lateral seismic load is 395.4 mm and the minimum is -450.3 mm. The maximum value is reduced by 0.8% and the minimum value is reduced by 14.5%.

[0072] Under longitudinal seismic load, the maximum internal force of the main beam is 32300.7 and the minimum is -27017.5. However, without the reinforcement structure of this invention, the maximum internal force of the main beam under the same longitudinal seismic load is 36796.4 and the minimum is -25213.2. Compared to the former, the maximum value is reduced by 13.9% and the minimum value is reduced by 6.7%. Under transverse seismic load, the maximum internal force of the main beam is 24126.2 and the minimum is -21783.8. However, without the reinforcement structure of this invention, the maximum internal force of the main beam under the same transverse seismic load is 24075.1 and the minimum is -21776.4. Compared to the former, the maximum value is reduced by 0.2% and the minimum value is reduced by 0.0%.

[0073] In this application, the bridge reinforcement device can add a protective layer to the outside of the pier body 5. When the bridge is located in an area with rapid water flow, the bridge reinforcement device can better reduce the erosion effect of water flow on the pier body 5. And when the bridge is located in a mountainous area, the bridge reinforcement device can effectively block falling rocks from the top of the mountain (specifically, when falling rocks roll down the hillside, the bridge reinforcement device can block some of the falling rocks that impact the pier, and reinforce part of the pier by the bridge reinforcement device, thereby reducing the risk of falling rocks damaging the bridge).

[0074] Optionally, the bridge reinforcement device can also be installed in an arch bridge, specifically, in the connection section between the arch abutment and the arch column.

[0075] Optionally, cylinder 1 can be a corrugated pipe.

[0076] Example 2

[0077] like Figure 12 As shown in the figure, in this embodiment 2, when the pier body 5 is a rectangular pier, the bridge reinforcement structure undergoes adaptive changes.

[0078] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bridge reinforcement structure, characterized in that, The system includes a cylinder (1) fitted onto the outer wall of the pier connection section. The cylinder (1) includes a first cylinder plate (11) and a second cylinder plate (12). The first cylinder plate (11) and the second cylinder plate (12) partially overlap. The first cylinder plate (11) has a first crest section (111) and a first trough section (112) along the axial direction of the pier connection section. The first crest section (111) and the first trough section (112) are spaced apart. The second cylinder plate (12) has a second crest section (121) adapted to the first crest section (111) and a second trough section (122) adapted to the first trough section (112). The bottom of the cylinder (1) is provided with a lower sealing plate (2), which is sleeved with the outer wall of the pier pile connecting section.

2. The bridge reinforcement structure according to claim 1, characterized in that, The first crest segment (111) and the first trough segment (112) are arranged at intervals on the first cylinder plate (11) along the axial direction of the pier connection segment; The second crest segment (121) and the second trough segment (122) are arranged at intervals on the second cylinder plate (12) along the axial direction of the pier connection segment.

3. The bridge reinforcement structure according to claim 1, characterized in that, The first cylindrical plate (11) is provided with a first connecting hole (113), which is located at the overlap of the first cylindrical plate (11) and the second cylindrical plate (12). The second cylindrical plate (12) is provided with a second connecting hole (123), and the size and position of the second connecting hole (123) are adapted to the size and position of the first connecting hole (113).

4. The bridge reinforcement structure according to claim 1, characterized in that, The top of the cylinder (1) is provided with an upper sealing plate (3), and the upper sealing plate (3) is provided with a grouting hole (31) and a grouting hole (32) vertically. The grouting hole (31) and the grouting hole (32) are both connected to the cylinder (1).

5. A bridge reinforcement structure according to claim 4, characterized in that, The upper sealing plate (3) includes a first upper sealing plate (33), the bottom of which is connected to the top of the first cylindrical plate (11). The upper sealing plate (3) also includes a second upper sealing plate (34), the bottom of which is connected to the top of the second cylindrical plate (12).

6. A bridge reinforcement structure according to claim 5, characterized in that, The first upper sealing plate (33) is provided with a first connecting plate (331) that fits against the outer wall of the pier connecting section, and the second upper sealing plate (34) is provided with a second connecting plate (341) that fits against the outer wall of the pier connecting section. The first connecting plate (331) and the second connecting plate (341) can clamp the pier connecting section.

7. A bridge reinforcement structure according to claim 6, characterized in that, Both the first connecting plate (331) and the second connecting plate (341) are provided with bolt holes (4), which are opened along the radial direction of the cylinder (1).

8. A bridge reinforcement structure according to any one of claims 1-7, characterized in that, The lower sealing plate (2) is formed by splicing a first annular plate (22) and a second annular plate (23). A first through groove is vertically opened on the first annular plate (22), and a second through groove is vertically opened on the second annular plate (23). The first through groove and the second through groove form an installation groove (21), which is used to clamp the pier pile connecting section.

9. A bridge reinforcement structure according to claim 8, characterized in that, A third connecting plate (221) is provided below the first annular plate (22), and the third connecting plate (221) is arranged along the outline of the first through groove. A fourth connecting plate (231) is provided below the second annular plate (23), and the fourth connecting plate (231) is arranged along the outline of the second through groove. After the third connecting plate (221) and the fourth connecting plate (231) are spliced ​​together, they can fit against the outer wall of the pier pile connecting section.

10. A bridge reinforcement structure according to claim 9, characterized in that, The third connecting plate (221) and the fourth connecting plate (231) are also provided with bolt holes (4), which are opened along the radial direction of the cylinder (1).

Images