Bridge temporary reinforcement device and method

Abstract

The present application belongs to the technical field of bridge positioning and reinforcing, and discloses a bridge temporary reinforcing device and method. The number of temporary support towers can be flexibly increased or reduced according to the clearance height between the bridge and the ground, that is, the overall support height can be adjusted, effectively adapting to different bridge clearance conditions. Adjacent temporary support towers are connected by triangular ear plates to form an overall structure, improving the connection strength and overall rigidity between the towers, and facilitating overall transportation by a special lifting clamp. A jacking component and a slope compensation component are sequentially arranged at the top end of the temporary support assembly to adjust the support height and make the top end of the adjustable jacking assembly closely fit the bridge bottom plate, improving the stability and safety of the support. When slight settlement occurs at the bottom end of the temporary support assembly, the support height of the jacking component is adjusted to continuously support the bridge bottom plate, ensuring effective transmission of the bridge load, reducing the on-site adjustment time, and reducing the labor intensity of construction personnel and the equipment use cost.

Description

Technical Field

[0001] This invention relates to the field of bridge positioning and reinforcement technology, and in particular to a temporary bridge reinforcement device and method. Background Technology

[0002] During the construction of new viaducts or overpasses, construction machinery and equipment (such as cranes, drilling rigs, and pump trucks) and construction materials often need to be temporarily stored, parked, or operated on the existing bridge deck, thus generating additional loads on the existing bridge structure. To address this issue, existing technologies typically employ temporary reinforcement or load distribution methods. For example, temporary support frames, steel pipe supports, or Bailey bridges are installed at critical load-bearing points of the bridge to distribute some of the construction load; or temporary support piers or support towers are installed under the bridge to transfer some of the load to the ground.

[0003] However, in actual construction, when the clearance height under the bridge is limited or the construction site conditions are complex, it is often difficult to arrange an effective ground support structure, and the foundation of the temporary support structure is difficult to fully compact. When the load is transferred to the ground through the temporary support structure, it can easily lead to ground settlement, creating gaps between the top of the support structure and the bottom of the bridge, thus affecting the effective transfer of load. In addition, some temporary support systems are complex to install and dismantle, requiring high-quality construction equipment and working space, resulting in low construction efficiency. This not only increases personnel and material costs but also raises construction safety risks to some extent. Summary of the Invention

[0004] The purpose of this invention is to solve or at least alleviate some or all of the aforementioned problems. Therefore, the purpose of this invention is to provide a temporary bridge reinforcement device and method that can continuously and stably support bridges without being limited by clearance height, and whose installation and dismantling operations are simple, thereby improving construction efficiency, reducing personnel and equipment costs, and effectively reducing construction safety risks.

[0005] To achieve this objective, the present invention adopts the following technical solution: A temporary bridge reinforcement device includes: A temporary support assembly includes modularly stackable temporary support towers and triangular lugs, wherein the temporary support towers are stacked vertically, and the triangular lugs are disposed at the bottom and top of the temporary support towers for connecting adjacent temporary support towers. An adjustable jacking assembly includes a jacking component and a slope compensation component. The jacking component is installed on the top of the temporary support assembly and can be raised and lowered in the vertical direction to temporarily support and reinforce the bridge. The slope compensation component is elastic, is located on the top of the jacking component, and can fit against the bridge bottom plate to compensate for the transverse and longitudinal slopes of the bridge bottom plate.

[0006] In some alternative embodiments, the slope compensation component is an elastic wedge block.

[0007] In some alternative embodiments, the elastic wedge is made of rubber.

[0008] In some alternative embodiments, the temporary bridge reinforcement device further includes a control platform and a displacement sensor, the lifting component is electrically connected to the control platform, and the displacement sensor is installed at the bottom of the temporary support assembly and electrically connected to the control platform.

[0009] In some alternative embodiments, the temporary support assembly further includes a horizontal support member disposed at the top of the stacked temporary support tower, and the lifting component is mounted on the horizontal support member.

[0010] In some alternative embodiments, the horizontal support is an I-beam.

[0011] In some alternative embodiments, the temporary support assembly further includes a roadbed box disposed at the bottom of the stacked temporary support tower.

[0012] In some alternative embodiments, the triangular lugs are also disposed in the middle of the temporary support tower to enhance the structural rigidity of the temporary support tower.

[0013] In some alternative embodiments, the temporary support assembly includes a plurality of temporary support towers of different heights, and the plurality of temporary support towers have the same cross-sectional dimensions.

[0014] A method for temporary bridge reinforcement, using the aforementioned temporary bridge reinforcement device, includes the following steps: S1: Before construction, calculate the bridge's own load, its bearing load, and the bearing capacity of the temporary support components; S2: Based on the clearance height between the bridge and the ground, multiple sets of temporary support towers are stacked vertically, and adjacent sets of temporary support towers are connected and fixed using the triangular ear plates, so that each set of temporary support components is assembled into an integral structure; then, the triangular ear plates are clamped by a special hoisting clamp, and each set of assembled temporary support components is transported as a whole to a designated position below the location of the bridge without columns or cap beams, and placed on the ground; S3: Install the lifting component on the top of the temporary support tower, and install the slope compensation component on the top of the lifting component to compensate for the transverse and longitudinal slopes of the bridge bottom plate, so that the adjustable lifting component is in close contact with the bridge bottom plate; S4: Slowly lift the lifting component so that the slope compensation component gradually contacts the bridge bottom plate; S5: Repeat the operation in S4, observe and record the change in the height difference between the bottom of the temporary support component and the ground surface, until the change in the height difference is less than 1cm, the temporary reinforcement of the bridge is completed.

[0015] The beneficial effects of this invention are: This invention provides a temporary bridge reinforcement device and method. By using modularly stackable temporary support towers, the number can be flexibly increased or decreased according to the clearance height between the bridge and the ground, thus adjusting the overall support height and effectively adapting to different bridge clearance conditions for temporary reinforcement. Adjacent temporary support towers are connected and fixed into an integral structure via triangular lugs, improving the connection strength and overall rigidity between the towers. This facilitates the use of the lugs as lifting or clamping stress points for overall transport, ensuring the temporary support assembly forms a stable and reliable load-bearing system after installation. A lifting component and a slope compensation component are installed at the top of the temporary support assembly. The lifting component can move vertically to adjust the support height, while the elastic slope compensation component compensates for the transverse and longitudinal slopes of the bridge base, ensuring a tight fit between the adjustable lifting assembly and the bridge base, thereby avoiding localized stress concentration and improving the stability and safety of the support. When the bridge is gradually lifted using jacking components and the slope compensation blocks are adjusted, the bottom of the temporary support assembly bears the ground reaction force, resulting in slight settlement at the stress point. This can be mitigated by adjusting the support height of the jacking components, ensuring continuous support for the bridge's base slab and preventing gaps between the bridge base slab and the support structure, thus guaranteeing effective load transfer. This reduces on-site adjustment time, lowers the labor intensity of construction workers and equipment operating costs, and effectively reduces safety risks during construction. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the temporary bridge reinforcement device described in this invention; Figure 2 This is an assembly diagram of the temporary bridge reinforcement device and the bridge described in this invention; Figure 3 This is a schematic diagram of the overall transport of the temporary support assembly described in this invention; Figure 4 This is a front view of the triangular lug plate described in this invention; Figure 5 This is a side view of the triangular ear plate described in this invention.

[0017] In the picture: 100. Bridges; 200. Ground; 300. Construction machinery and equipment; 1. Temporary support components; 11. Temporary support towers; 12. Triangular lugs; 13. Horizontal support components; 14. Roadbed boxes; 2. Adjustable lifting assembly; 21. Lifting components; 22. Slope compensation components; 3. Special lifting clamps. Detailed Implementation

[0018] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0019] In this invention, the terms "comprising," "including," "having," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0020] In this invention, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following related objects have an "and / or" relationship.

[0021] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," "fixed," "combined," "coupled," and "installed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a direct connection or an indirect connection via an intermediate medium; or the internal communication of two components or the interaction between two components. As examples, a direct connection refers to two parts or components being connected together without the need for an intermediate medium, while an indirect connection refers to two parts or components each being connected to at least one intermediate medium, with the connection achieved through the intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. Furthermore, "connected" and "coupled" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0022] In this invention, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the value and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​not using relative terms should also be disclosed as specific values ​​with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.

[0023] In this invention, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0024] In this invention, the terms "upper," "lower," "left," "right," "front," and "rear," etc., refer to the orientations or positional relationships shown in the accompanying drawings. They are used solely for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on this invention. Furthermore, in the context, it should be understood that when an element is mentioned as being "upper" or "lower" than another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as "upper side," "lower side," "left side," "right side," "front side," and "rear side" not only represent positive orientation but can also be understood as lateral orientation. For example, "above," "on top of," "upper side of," and "above" the first feature "above" or "on the second feature" includes the first feature being directly above, to the upper left, to the upper right, to the upper front, and to the upper rear of the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature. The terms "below," "under," "below," and "below" for "first feature" and "second feature" include situations where the first feature is directly below, to the lower left, to the lower right, in front of, or behind the second feature, or simply indicate that the first feature is at a lower horizontal level than the second feature. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no specific meaning.

[0025] During the construction of new viaducts or overpasses, construction machinery and equipment (such as cranes, drilling rigs, and pump trucks) and construction materials often need to be temporarily stored, parked, or operated on the existing bridge deck, thus generating additional loads on the existing bridge structure. However, in actual construction, when the clearance height under the bridge is limited or the construction site conditions are complex, it is often difficult to arrange an effective ground support structure, and the foundation of the temporary support structure is difficult to fully compact. When the load is transferred to the ground through the temporary support structure, it can easily lead to ground settlement, creating gaps between the top of the support structure and the bottom of the bridge, thus affecting the effective transfer of load. In addition, the installation and dismantling of some temporary support systems are complex, requiring high-quality construction equipment and working space, resulting in low construction efficiency. This not only increases personnel and material costs but also raises construction safety risks to some extent.

[0026] To solve the above problems, please refer to Figures 1 to 5 As shown, this embodiment provides a temporary bridge reinforcement device, including a temporary support assembly 1 and an adjustable lifting assembly 2. The temporary support assembly 1 includes modularly stackable temporary support towers 11 and triangular ear plates 12. The temporary support towers 11 are stacked vertically, and the triangular ear plates 12 are disposed at the bottom and top of the temporary support towers 11 to connect adjacent temporary support towers 11. The adjustable lifting assembly 2 includes a lifting component 21 and a slope compensation component 22. The lifting component 21 is installed at the top of the temporary support assembly 1 and can be raised and lowered vertically to temporarily support and reinforce the bridge 100. The slope compensation component 22 is elastic, disposed at the top of the lifting component 21, and can fit against the bridge 100 to compensate for the transverse and longitudinal slopes of the bridge 100's bottom plate.

[0027] The temporary support assembly 1 employs modularly stackable temporary support towers 11. By flexibly increasing or decreasing the number of temporary support towers 11 according to the clearance height between the bridge 100 and the ground 200, the overall support height can be adjusted without relying on a fixed-height support structure. This effectively adapts to different clearance conditions of the bridge 100 for temporary support reinforcement. Adjacent temporary support towers 11 are connected and fixed together by triangular lugs 12 to form an integral structure. This improves the connection strength and overall rigidity between the towers and facilitates the use of the triangular lugs 12 as lifting or clamping force points for overall transport, ensuring that the temporary support assembly 1 forms a stable and reliable force-bearing system after installation. A lifting component 21 and a slope compensation component 22 are installed at the top of the temporary support assembly 1. The lifting component 21 can be raised and lowered vertically to adjust the support height, while the elastic slope compensation component 22 can compensate for the transverse and longitudinal slopes of the bridge 100's bottom plate, ensuring a tight fit between the adjustable lifting assembly 21 and the bridge 100's bottom plate. This avoids localized stress concentration and improves the stability and safety of the support.

[0028] This temporary bridge reinforcement device, through the installation of temporary support components 1, enables modular assembly and overall hoisting, thus adapting to different clearance conditions of bridges 100, and simplifies installation and disassembly. The lifting component 21 allows for rapid adjustment of the support height and precise positioning. When the bridge 100 is gradually lifted using the lifting component 21 and the slope compensation blocks are adjusted, the bottom of the temporary support component 1 bears the ground reaction force 200, resulting in slight settlement at the stress point. By adjusting the support height of the lifting component 21, it continuously supports the bridge 100's base plate, preventing gaps between the bridge 100's base plate and the support structure, and ensuring effective load transfer for the bridge 100. This reduces on-site adjustment time, lowers the labor intensity of construction workers and equipment operating costs, and effectively reduces safety risks during construction.

[0029] In some optional embodiments, the temporary bridge reinforcement device also includes a control platform and displacement sensors. The lifting component 21 is electrically connected to the control platform, and the displacement sensors are installed at the bottom of the temporary support assembly 1 and electrically connected to the control platform. By collecting real-time data on the bottom settlement using the displacement sensors, the changes in the height difference between the bottom and the ground 200 can be observed and recorded. Construction personnel can accurately determine the bearing capacity of the stratum and the stability of the temporary support assembly 1. Adjusting the lifting height of the lifting component based on the feedback from the displacement sensors effectively avoids problems such as excessively fast, too high, or insufficient lifting during manual operation, improving lifting accuracy and ensuring a tight fit between the bridge 100 bottom plate and the adjustable lifting component 2, guaranteeing uniform load distribution.

[0030] In some embodiments, the temporary support assembly 1 includes multiple temporary support towers 11 of different heights and dimensions, and the multiple temporary support towers 11 have the same cross-sectional dimensions. The temporary support towers 11 of different heights can be freely combined according to the clearance between the bridge 100 and the ground 200 to assemble into a temporary support height that meets construction requirements, adapting to the temporary reinforcement needs of different bridges 100 and different construction sections, without the need to design a separate full-height tower for each bridge 100. The identical cross-sectional dimensions of each temporary support tower 11 ensure consistent load-bearing capacity and stiffness, resulting in uniform stress distribution in the assembled temporary support system, reducing local stress concentration, and improving structural safety.

[0031] For example, the temporary support tower 11 structure can be a cube, but is not specifically limited here. like Figure 1As shown, specifically, the slope compensation component 22 is an elastic wedge block. The thickness of the wedge structure gradually changes along one direction, allowing it to match the slope of the bridge 100's bottom slab, thereby compensating for the transverse and longitudinal slopes of the bridge 100's bottom slab and ensuring that the lifting component 21 can fully fit against the bridge 100's bottom slab. The elastic wedge block can be, but is not limited to, made of elastic materials such as rubber, and has a certain buffering capacity. During the loading or lifting process of the bridge 100, it can absorb some of the impact and vibration, reducing damage to the bridge 100's bottom slab caused by rigid contact, thus improving the safety of the support process.

[0032] In some alternative embodiments, the lifting component 21 can be a hydraulic jack, which can provide a large lifting force to effectively meet the support requirements for large loads during the temporary reinforcement of the bridge 100, thereby ensuring that the temporary support system still has good stability and reliability under load. Furthermore, the lifting stroke of the hydraulic jack can be finely adjusted, enabling gradual and controllable lifting operations during the contact between the bridge 100 base plate and the adjustable lifting component 2, facilitating precise adjustment of the support height.

[0033] In some optional embodiments, the temporary support assembly 1 further includes a horizontal support member 13, which is disposed at the top of the stacked temporary support tower 11, and the lifting member 21 is installed on the horizontal support member 13. The horizontal support member 13 provides a stable and flat installation platform for the lifting member 21, and can connect the stress points at the top of the stacked temporary support tower 11 to form an integral stress surface. The load of the bridge 100 is transferred to the horizontal support member 13 through the lifting member 21, and then evenly transferred to the temporary support tower 11 below by the horizontal support member 13, making the stress more uniform, thereby improving the overall stability of the temporary support assembly 1, avoiding excessive local stress, and improving the load-bearing capacity of the entire temporary support system.

[0034] Optionally, the horizontal support 13 is an I-beam; the I-beam has a large moment of inertia and high bending resistance, resulting in strong load-bearing capacity. Furthermore, I-beams are common standard steel structural components, widely available, easy to process, and convenient to install and dismantle on-site, which helps improve the efficiency of temporary reinforcement construction.

[0035] In some embodiments, the temporary support assembly 1 further includes a roadbed box 14, which is disposed at the bottom of the superimposed temporary support tower 11. The roadbed box 14 is typically a large-area steel structure load-bearing component. After being disposed at the bottom of the temporary support tower 11, it significantly increases the contact area between the support system and the ground 200, thereby dispersing the concentrated load transmitted at the bottom of the temporary support tower 11, reducing the pressure on the ground 200 per unit area, and reducing the risk of local settlement or damage to the ground 200.

[0036] In some embodiments, the triangular ear plate 12 is also disposed in the middle of the temporary support tower 11, so that the middle part of each temporary support tower 11 is not prone to local bending or buckling when subjected to vertical pressure, thereby enhancing the overall structural rigidity of the temporary support tower 11.

[0037] like Figure 4 and Figure 5 As shown, the front view of the triangular ear plate 12 is an isosceles triangle shape, which makes the two sides of the ear plate equal in length. When subjected to force, it can evenly distribute the load of the connecting tower, reduce local stress concentration, and improve the overall stability of the temporary support assembly 1.

[0038] The triangular ear plate 12 is usually made of high-strength steel. The steel has high yield strength and tensile and compressive strength, and can withstand the connection load between the temporary support towers 11 and the stress generated during the hoisting process, so as to ensure that the overall structure of the temporary support tower 11 does not undergo plastic deformation or fracture under the load of the bridge 100.

[0039] like Figure 2 and Figure 3 As shown, this embodiment also provides a temporary bridge reinforcement method, which uses the temporary bridge reinforcement device in any of the above embodiments, and includes the following steps: S1: Before construction, calculate the self-load of bridge 100, the load it bears, and the bearing capacity of temporary support component 1; S2: Based on the clearance height between the bridge 100 and the ground 200, multiple sets of temporary support towers 11 are stacked vertically, and adjacent sets of temporary support towers 11 are connected and fixed using triangular ear plates 12, so that each set of temporary support components 1 is assembled into an integral structure; then, the triangular ear plates 12 are clamped by a special hoisting clamp 3, and each set of assembled temporary support components 1 is transported as a whole to a designated position below the position of the bridge 100 without columns or cap beams; S3: Install the lifting component 21 on the top of the temporary support tower 11, and install the slope compensation component 22 on the top of the lifting component 21 to compensate for the cross slope and longitudinal slope of the bottom plate of the bridge 100, so that the adjustable lifting component 2 fits tightly with the bottom plate of the bridge 100. S4: Slowly lift the lifting component 21 so that the slope compensation component 22 gradually contacts the bottom plate of the bridge 100; S5: Repeat the operation described in S4, observe and record the change in height difference between the bottom of the temporary support component 1 and the surface of the ground 200, until the change in height difference between the two is <1cm, the temporary reinforcement of the bridge 100 is completed.

[0040] This method uses modularly stacked temporary support towers 11, fixed with triangular lugs 12 to form an integral support structure. Combined with jacking components 21 and slope compensation components 22, it provides precise support to the bridge 100's base plate, and allows real-time monitoring of the height difference between the bottom of the temporary support assembly 1 and the ground 200. This method can adapt to different clearance conditions of the bridge 100, is simple to operate, and efficient in handling. The temporary support assembly 1 can uniformly and continuously support the load of the bridge 100, improving construction safety and efficiency while reducing the labor intensity of construction personnel and equipment operating costs, effectively protecting the structural safety of the bridge 100.

[0041] like Figure 3 As shown, the special lifting clamp 3 can be a clamp-type lifting clamp, and no specific limitation is made here.

[0042] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A temporary bridge reinforcement device, characterized in that, include: The temporary support assembly (1) includes modularly stackable temporary support towers (11) and triangular ear plates (12). The temporary support towers (11) are stacked vertically, and the triangular ear plates (12) are disposed at the bottom and top of the temporary support towers (11) for connecting adjacent temporary support towers (11). The adjustable lifting assembly (2) includes a lifting component (21) and a slope compensation component (22). The lifting component (21) is installed on the top of the temporary support assembly (1) and can be raised and lowered in the vertical direction to temporarily support and reinforce the bridge (100). The slope compensation component (22) is elastic, is set on the top of the lifting component (21), and can fit against the bottom plate of the bridge (100) to compensate for the transverse and longitudinal slopes of the bottom plate of the bridge (100).

2. The temporary bridge reinforcement device according to claim 1, characterized in that, The slope compensation component (22) is an elastic wedge block.

3. The temporary bridge reinforcement device according to claim 2, characterized in that, The elastic wedge block is made of rubber.

4. The temporary bridge reinforcement device according to claim 1, characterized in that, The temporary bridge reinforcement device also includes a control platform and a displacement sensor. The lifting component (21) is electrically connected to the control platform, and the displacement sensor is installed at the bottom of the temporary support component (1) and electrically connected to the control platform.

5. The temporary bridge reinforcement device according to claim 1, characterized in that, The temporary support assembly (1) also includes a horizontal support member (13), which is disposed at the top of the superimposed temporary support tower (11), and the lifting component (21) is installed on the horizontal support member (13).

6. The temporary bridge reinforcement device according to claim 5, characterized in that, The horizontal support member (13) is an I-beam.

7. The temporary bridge reinforcement device according to claim 1, characterized in that, The temporary support assembly (1) also includes a roadbed box (14), which is located at the bottom of the superimposed temporary support tower (11).

8. The temporary bridge reinforcement device according to claim 1, characterized in that, The triangular ear plate (12) is also provided in the middle of the temporary support tower (11) to enhance the structural rigidity of the temporary support tower (11).

9. The temporary bridge reinforcement device according to claim 1, characterized in that, The temporary support assembly (1) includes a plurality of temporary support towers (11) with different height dimensions, and the plurality of temporary support towers (11) have the same cross-sectional dimensions.

10. A method for temporary reinforcement of bridges, characterized in that, The bridge temporary reinforcement device as described in any one of claims 1 to 9 includes the following steps: S1: Before construction, calculate the self-load of the bridge (100), the load it bears, and the bearing capacity of the temporary support component (1); S2: Based on the clearance height between the bridge (100) and the ground (200), multiple sets of temporary support towers (11) are stacked vertically, and the adjacent sets of temporary support towers (11) are connected and fixed using the triangular ear plates (12), so that each set of temporary support components (1) is assembled into an integral structure; then, the triangular ear plates (12) are clamped by a special hoisting clamp (3), and the assembled sets of temporary support components (1) are transported as a whole to the designated position below the position of the bridge (100) without columns or cap beams, and located on the ground (200); S3: Install the lifting component (21) on the top of the temporary support tower (11), and install the slope compensation component (22) on the top of the lifting component (21) to compensate for the transverse and longitudinal slopes of the bridge (100) bottom plate, so that the adjustable lifting component (2) fits tightly with the bridge (100) bottom plate; S4: Slowly lift the lifting component (21) so that the slope compensation component (22) gradually contacts the bottom plate of the bridge (100); S5: Repeat the operation of S4, observe and record the change in height difference between the bottom of the temporary support component (1) and the surface of the ground (200) until the change in height difference between the two is <1cm, then the temporary reinforcement of the bridge (100) is completed.

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