A Bailey bridge platform, support system and construction method

Abstract

This invention relates to the field of architecture and construction technology, and discloses a Bailey bridge platform, a support system, and a construction method. The platform includes a Bailey bridge platform base, a first support plate at the top of the base, and three sets of equally spaced guide components at the top of the first support plate. The top of each guide component is fixedly connected to the bottom of a second support plate, which has a top plate. The bottom of the second support plate symmetrically abuts against contact blocks, and each contact block is connected to a connecting plate. By allowing sliding blocks to move within one end of a sliding cavity, the distance between two sliding blocks can be adjusted to match the lateral distance of the installation area. This improves the stability of the Bailey bridge platform base and other components after connection and fixation, and also allows for easier handling and rapid compensation of errors during construction.

Description

Technical Field

[0001] This invention relates to the fields of architecture and construction technology, specifically to a Bailey bridge platform, support system, and construction method. Background Technology

[0002] Bailey bridges, also known as "prefabricated highway steel bridges," were originally called the "321" highway steel bridge and were China's strategic highway steel bridges. Bailey bridges are steel frames that form fixed units, which can be assembled into many components and equipment. They are one of the most widely used and popular types of bridges in the world, characterized by their simple structure, convenient transportation, rapid erection, and easy disassembly. They also possess advantages such as high load-bearing capacity, strong structural rigidity, and long fatigue life. They can be configured into various types and purposes of temporary bridges, emergency bridges, and fixed bridges according to different spans required, featuring fewer components, lighter weight, and lower cost.

[0003] In existing technologies, large-scale hydropower projects can only use full-span scaffolding during the flood season. The construction of full-span scaffolding is difficult and time-consuming. Bailey bridge platforms are often used to assist the full-span scaffolding. However, existing Bailey bridge platforms are often integrated prefabricated buildings, which makes it difficult to deal with the error problems encountered during the operation. If the error cannot be quickly compensated, it will affect the overall stability of the device. If the error is large, it will cause the need for rework.

[0004] A search revealed a Chinese patent document (Publication No.: CN101205763A) disclosing a construction method for building a formwork platform using Bailey trusses. This invention relates to a construction method for building a formwork platform using Bailey trusses, belonging to the category of fixed building construction methods. Constructing an aerial walkway on a high-rise building requires the pre-construction of a formwork platform, upon which formwork supports and scaffolding are installed for subsequent pouring. Existing construction methods using suspended trusses to build formwork platforms are complex, have low safety, long construction periods, slow progress, and high construction costs. This invention provides a construction method for building a formwork platform using Bailey trusses, the technical solution of which includes the following steps in sequence: A. Truss assembly and erection; B. Truss cantilever extension and translation; C. Truss revetment and erection positioning; D. Laying of the construction platform. By using a Bailey truss cantilever erected on-site to connect to the formwork platform of the sky bridge on the opposite bank, the construction of a high-rise building offers good safety and a short construction period. Bailey trusses are easy to rent and can be reused, resulting in low construction costs and good economic benefits. However, the following drawbacks still exist: While the aforementioned construction method for building a formwork platform using Bailey trusses achieves good construction safety and a short construction period by using a cantilevered Bailey truss erected on-site on a high-rise building to connect to the opposite bank and build a formwork platform for an aerial corridor, and is easy to rent and reuse, resulting in low construction costs and good economic benefits, it also has its drawbacks. Since the Bailey truss platform is often an integrated prefabricated building, it is difficult to handle errors encountered during operation. If errors cannot be quickly compensated for, it will affect the overall stability of the installation, and large errors will require rework. Summary of the Invention

[0005] The purpose of this invention is to provide a Bailey bridge platform, support system, and construction method, which solves the problems in the prior art where large-scale hydropower projects can only use full-span scaffolding during the flood season. The construction of full-span scaffolding is difficult and time-consuming. While Bailey bridge platforms are often used to assist the full-span scaffolding, existing Bailey bridge platforms are often integrated prefabricated structures, making it difficult to cope with errors encountered during operation. If errors cannot be quickly compensated, the overall stability of the device will be affected, and large errors will require rework. This invention can accommodate both longitudinal and lateral errors, avoiding impacts on the overall stability of the device and preventing rework issues caused by large errors.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A Bailey bridge platform, a support system, and a construction method are disclosed. The Bailey bridge platform includes a base, a first support plate at the top of the base, and three sets of equally spaced guide components at the top of the first support plate. The top of the guide components is fixedly connected to the bottom of a second support plate, and a top plate is provided on the top of the second support plate. The bottom of the second support plate symmetrically abuts against abutting blocks, and the bottom of each abutting block is connected to a connecting plate. A plurality of supporting steel reinforcement plates are provided between the bottom of the connecting plate and the first support plate. Connecting bolts are symmetrically installed through the Bailey bridge platform base.

[0007] Preferably, a plurality of first reinforcing ribs are provided at equal intervals between the Bailey bridge platform base and the first support plate, and the two ends of the first reinforcing ribs are fixedly connected to the top end of the Bailey bridge platform base and the bottom end of the first support plate, respectively. The first reinforcing ribs are provided in an "X" shaped structure.

[0008] Preferably, the guiding component includes a guiding cavity and a guiding block. The top end of the first support plate is provided with guiding cavities at equal intervals, and the top end of the guiding cavity is movably connected to the guiding block. The top end of the guiding block is fixedly connected to the bottom end of the second support plate.

[0009] Preferably, a plurality of second reinforcing ribs are provided between the top end of the second support plate and the bottom end of the top plate of the Bailey bridge platform, and the two ends of the second reinforcing ribs are fixedly connected to the top end of the second support plate and the bottom end of the top plate of the Bailey bridge platform, respectively. The second reinforcing ribs are provided in an "X" shaped structure.

[0010] Preferably, the two ends of the supporting steel plate are respectively engaged inside the bottom end of the first slot and inside the top end of the second slot, and the first slot and the second slot are respectively installed at the bottom end of the second support plate and the top end of the first support plate.

[0011] A support system includes the aforementioned Bailey bridge platform base and a bolt connection cavity for connecting connecting bolts. The inner wall of the bolt connection cavity is threadedly connected to the outer wall of the connecting bolt, and the bottom end of the bolt connection cavity is fixedly connected to the top end of a sliding block. The sliding block is slidably connected inside one end of the sliding cavity.

[0012] Preferably, the bottom end of the sliding cavity is fixedly connected to a connecting protrusion, and the connecting protrusion is disposed on the inner side wall of the guide groove. The top end of each sliding block is installed with a first bolt anchor, and the bottom end of the first bolt anchor extends into the top end of the connecting protrusion. The bottom end of the sliding cavity is fixedly connected to the top end of the connecting rib, and the connecting rib is pre-embedded in the top end of the steel bracket fastener.

[0013] Preferably, one end of the steel bracket fastener is fixedly connected to a mounting base, and one end of the mounting base is fixedly connected with a series of reinforcing bars at equal intervals. A plurality of second bolt anchors are symmetrically installed through one end of the mounting base.

[0014] A construction method for a Bailey bridge platform and support system includes the following steps: S1: Measure the dimensions of the area to be fixed in the Bailey bridge platform base area; S2: Proposed installation of the Bailey bridge platform base; S3: Fix the steel bracket fastener and the connecting reinforcement to the designated area, and then double-fix the steel bracket fastener with the second bolt anchor; S4: Calibrate the dimensions of each component of the Bailey bridge platform base and the dimensions of the fixed Bailey bridge platform base area; S5: Adjust the calibrated longitudinal dimensions so that the sliding blocks can move inside the sliding cavity, and the sliding blocks can be matched with the transverse dimensions of the Bailey bridge platform base. S6: Then, the height of the second support plate and the top plate of the Bailey bridge platform are raised by the lifting device so that the accurate height is adapted to the longitudinal dimension of the area where the Bailey bridge platform base needs to be fixed. S7: Then insert the support steel plates with matching spacing between the first support plate and the second support plate into the corresponding first and second slots respectively; S8: Finally, the calibrated Bailey bridge platform base and Bailey bridge platform top plate and other components are connected to the bolt connection cavity using connecting bolts to complete the overall fixation of the device.

[0015] Preferably, in step S8, fixing the entire device includes the following steps: S8.1: Conduct measurements and layout to determine the accurate location of the Bailey bridge platform base; S8.2: The assembled Bailey bridge platform base is connected to the lifting section of the truck crane; S8.3: The assembled Bailey bridge platform base is horizontally lifted by the lifting section of the truck crane so that the connecting bolts are aligned with the bolt connection cavity; S8.4: Finally, the device is fixed by connecting it to the bolt connection cavity with connecting bolts.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. The various devices in this invention adopt an assembly structure, which makes it easier to operate during construction, thereby improving the practicality and convenience of the device. Furthermore, the connection and disassembly of the various components are relatively convenient, which further improves its convenience.

[0017] 2. By setting the sliding block to move inside one end of the sliding cavity, the distance between the two sliding blocks can be adjusted to match the lateral distance of the installation area. This makes the connection and fixation of components such as the Bailey bridge platform base more stable, and also makes it easier to deal with existing errors during construction and quickly compensate for errors.

[0018] 3. The spacing between the first and second support plates is adjusted by the support of the abutment block and the connecting plate, so that the spacing between them is adapted to the longitudinal area of ​​the installation area. The adjustment of the abutment block and the connecting plate is achieved by the cooperation of the first and second slots, so that the support steel plate can be quickly installed and positioned, thus enabling the support steel plate to play a supporting role. In this way, the support steel plate, which is adapted to the second and first support plates, supports the second and first support plates during use, thereby adapting to the longitudinal installation spacing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the structure of the Bailey bridge platform parts of the present invention; Figure 3 This is a schematic diagram of the component structure of the support system of the present invention; Figure 4 This is a schematic diagram illustrating the specific steps of the construction method for the Bailey bridge platform and support system of the present invention; Figure 5 A schematic diagram illustrating the specific steps involved in fixing the entire device to complete the present invention.

[0020] The components are: 1. Bailey bridge platform base; 2. First reinforcing rib; 3. First support plate; 4. Guide cavity; 5. Guide block; 6. Second support plate; 7. Second reinforcing rib; 8. Bailey bridge platform top plate; 9. Abutment block; 10. Connecting plate; 11. First slot; 12. Supporting steel plate; 13. Second slot; 14. Connecting bolt; 15. Bolt connection cavity; 16. Sliding block; 17. Sliding cavity; 18. Guide groove; 19. First bolt anchor; 20. Connecting rib; 21. Steel bracket fastener; 22. Mounting base; 23. Series rib; 24. Second bolt anchor. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1

[0023] Please see Figure 1 and 2 A Bailey bridge platform includes a Bailey bridge platform base 1. The top of the Bailey bridge platform base 1 is fixedly connected to the bottom of a first support plate 3 via equally spaced first reinforcing ribs 2. The top of the first support plate 3 is fixedly connected to equally spaced guide components. The top of the guide components is fixedly connected to the bottom of a second support plate 6. The top of the second support plate 6 is fixedly connected to the bottom of a Bailey bridge platform top plate 8 via equally spaced second reinforcing ribs 7. The bottom of the second support plate 6 symmetrically abuts against abutting blocks 9, and the bottom of each abutting block 9 is fixed with a connecting plate 10. A plurality of equally spaced supporting steel plates 12 are provided between the bottom of the connecting plate 10 and the first support plate 3. Through the arrangement of the second reinforcing ribs 7 and the first reinforcing ribs 2, the device as a whole has high strength, improving its stability and strength. Furthermore, through the support of the abutting blocks 9 and the connecting plates 10, the spacing between the first support plate 3 and the second support plate 6 can be adjusted, thereby adapting the spacing between them to the longitudinal area of ​​the installation area.

[0024] The first reinforcing rib 2 is set in an "X" shape. The top end of the first reinforcing rib 2 is fixedly connected to the bottom end of the first support plate 3, and the bottom end of the first reinforcing rib 2 is fixedly connected to the top end of the Bailey bridge platform base 1. With the first reinforcing rib 2, the bottom end of the first support plate 3 and the top end of the Bailey bridge platform base 1 have high strength during use, resulting in better support effect.

[0025] The guiding assembly includes a guiding cavity 4 and a guiding block 5. The top of the first support plate 3 is fixedly connected to the guiding cavity 4 at equal intervals, and the top of the guiding cavity 4 is movably connected to the guiding block 5. The outer wall of the guiding block 5 is adapted to the inner wall of the guiding cavity 4, and both the outer wall of the guiding block 5 and the inner wall of the guiding cavity 4 are rectangular structures. The top of the guiding block 5 is fixedly connected to the bottom of the second support plate 6. Through the guiding assembly, the guiding cavity 4 and the guiding block 5 cooperate to adjust the distance between the first support plate 3 and the second support plate 6 during use, so that the distance between them is adapted to the longitudinal area of ​​the installation area. Thus, the stability is improved during and after the adjustment process by the guiding cavity 4 and the guiding block 5.

[0026] The second reinforcing rib 7 is set in an "X" shape. The top end of the second reinforcing rib 7 is fixedly connected to the bottom end of the top plate 8 of the Bailey bridge platform, and the bottom end of the second reinforcing rib 7 is fixedly connected to the top end of the second support plate 6. With the setting of the second reinforcing rib 7, during use, the top end of the second support plate 6 and the bottom end of the top plate 8 of the Bailey bridge platform have high strength and better support effect.

[0027] The top of the first support plate 3 is fixedly connected with a first slot 11 with a concave structure at equal intervals, and the top of the first slot 11 is engaged with the bottom of the support steel plate 12. Through the first slot 11, the support steel plate 12 can be quickly installed and positioned by the cooperation of the first slot 11 and the second slot 13 during use, so that the support steel plate 12 can play a supporting role.

[0028] The top of the second support plate 6 is fixedly connected with a second slot 13 with a concave structure at equal intervals, and the bottom end of the second slot 13 is engaged with the top of the support steel plate 12. Through the support steel plate 12, the second support plate 6 and the first support plate 3 are supported during use by the support steel plate 12 that is compatible with the first support plate 3, thereby adapting to the longitudinal installation spacing.

[0029] The top of the Bailey bridge platform base 1 is symmetrically equipped with connecting bolts 14 for connecting with bolt connection 15. Through the bolt connection 15, the connecting bolts 14 are connected during use, thereby connecting and fixing the Bailey bridge platform to the support system.

[0030] The principle and process of this invention: Firstly, through the bolt connection cavity 15, the connecting bolts 14 are connected through the bolt connection cavity 15 during use, thereby connecting and fixing the Bailey bridge platform to the support system; Secondly, through the first slot 11, the first slot 11 and the second slot 13 are matched during use to quickly install and position the supporting steel plate 12, so that the supporting steel plate 12 plays a supporting role. Through the supporting steel plate 12, the supporting steel plate 12, which is adapted to the second supporting plate 6 and the first supporting plate 3, supports the second supporting plate 6 and the first supporting plate 3 during use, thereby adapting to the longitudinal installation spacing. Then, by setting the second reinforcing rib 7 and the first reinforcing rib 2, the device as a whole has high strength, improving its stability and strength. At the same time, through the support of the abutment block 9 and the connecting plate 10, the distance between the first support plate 3 and the second support plate 6 can be adjusted so that the distance between them is adapted to the longitudinal area of ​​the installation area. In this way, the Bailey bridge platform is installed.

[0031] Example 2

[0032] Please see Figure 1 and 3 A support system includes a Bailey bridge platform base 1 and a bolt connection cavity 15 for connecting connecting bolts 14. The inner wall of the bolt connection cavity 15 is threadedly connected to the outer wall of the connecting bolts 14, and both the inner wall of the bolt connection cavity 15 and the outer wall of the connecting bolts 14 are threaded structures. The bottom end of the bolt connection cavity 15 is fixedly connected to the top end of a sliding block 16, and the sliding block 16 is slidably connected inside one end of a sliding cavity 17. The sliding block 16 is L-shaped. By moving the sliding block 16 inside one end of the sliding cavity 17, the distance between the two sliding blocks 16 can be adjusted to match the lateral distance of the installation area. This makes the stability of the Bailey bridge platform base 1 and other components more stable after connection and fixation. Furthermore, the threaded connection between the inner wall of the bolt connection cavity 15 and the outer wall of the connecting bolts 14 connects and fixes the Bailey bridge platform base 1 to the support system.

[0033] The bottom end of the sliding block 16 is provided with a guide groove 18, and the inner sidewall of the guide groove 18 fits against the outer sidewall of the connecting protrusion. The connecting protrusion is fixedly connected to the bottom end of the sliding cavity 17, and the sliding block 16 is movably connected to one end of the sliding cavity 17. The top end of the sliding block 16 is symmetrically installed with a first bolt anchor 19, and the bottom end of the first bolt anchor 19 extends into the top end of the connecting protrusion. The sliding block 16 is fixedly connected to the connecting protrusion through the first bolt anchor 19. The bottom end of the sliding cavity 17 is fixedly connected to the top end of the connecting rib 20, and the connecting rib 20 is pre-embedded in the top end of the steel bracket fastener 21. With the setting of the connecting rib 20, the connection between the connecting rib 20 and the sliding cavity 17 and the steel bracket fastener 21 is more stable and has high strength during use.

[0034] One end of the steel bracket fastener 21 is fixedly connected to the mounting base 22, and one end of the mounting base 22 is fixedly connected with the pre-embedded series ribs 23 in the installation area at equal intervals. One end of the mounting base 22 is symmetrically installed with the second bolt anchor 24 for connecting with the installation area. Through the series ribs 23 and the second bolt anchor 24, the steel bracket fastener 21 cooperates with the mounting base 22 during use, thereby making the stability higher after connecting with the installation area. The double fixing improves the support effect of the device.

[0035] The principle and process of this invention: First, the sliding block 16 moves inside one end of the sliding cavity 17, so that the distance between the two sliding blocks 16 is adjusted to match the lateral distance of the installation area. Then, the first bolt anchor 19 limits and fixes the adjusted sliding block 16. Secondly, the inner wall of the bolt connection cavity 15 is threadedly connected to the outer wall of the connecting bolt 14, thereby connecting and fixing the Bailey bridge platform base 1 to the support system. Then, the steel bracket fastener 21 is installed and fixed with the mounting base 22 by the second bolt anchor 24, so that the stability is higher after it is connected to the installation area. The double fixing improves the support effect of the device, and the support system is thus installed.

[0036] Example 3

[0037] Please see Figure 4 and 5 A construction method for a Bailey bridge platform and support system includes the following steps: S1: Measure the dimensions of the area of ​​the base 1 of the Bailey bridge platform to be fixed; S2: Proposed installation of Bailey bridge platform base 1; S3: Fix the steel bracket fastener 21 and the connecting rib 23 to the designated area, and then double fix the steel bracket fastener 21 with the second bolt anchor 24; S4: Calibrate the dimensions of each component of Bailey bridge platform base 1 and the dimensions of the area of ​​fixed Bailey bridge platform base 1; S5: Adjust the calibrated longitudinal dimension so that the sliding block 16 moves inside the sliding cavity 17, and the sliding block 16 is adapted to the transverse dimension of the Bailey bridge platform base 1. S6: The height of the second support plate 6 and the top plate 8 of the Bailey bridge platform are then raised by the lifting device so that the accurate height is adapted to the longitudinal dimension of the area where the Bailey bridge platform base 1 needs to be fixed. S7: Then insert the support steel plate 12, whose spacing is adapted between the first support plate 3 and the second support plate 6, into the corresponding first slot 11 and second slot 13 respectively; S8: Finally, the calibrated Bailey bridge platform base 1 and Bailey bridge platform top plate 8 and other components are connected to the bolt connection cavity 15 by connecting bolts 14 to complete the overall fixation of the device.

[0038] In S8, the process of fixing the entire device includes the following steps: S8.1: Conduct measurement and layout to determine the accurate position of Bailey bridge platform base 1; S8.2: The assembled Bailey bridge platform base 1 is connected to the lifting part of the truck crane; S8.3: The assembled Bailey bridge platform base 1 is horizontally lifted by the lifting part of the truck crane so that the connecting bolt 14 is aligned with the bolt connection cavity 15; S8.4: Finally, the device is fixed by connecting bolt 14 to the bolt connection cavity 15.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A construction method, characterized in that: Includes the following steps: S1: Measure the dimensions of the area of ​​the base (1) of the Bailey bridge platform to be fixed; S2: Propose to install the Bailey bridge platform base (1); S3: Fix the steel bracket fastener (21) and the connecting reinforcement (23) to the designated area, and then double fix the steel bracket fastener (21) with the second bolt anchor (24); S4: Calibrate the dimensions of each component of the Bailey bridge platform base (1) and the dimensions of the fixed Bailey bridge platform base (1) area; S5: Adjust the calibrated longitudinal dimensions so that the sliding block (16) moves inside the sliding cavity (17) so that the sliding block (16) is adapted to the transverse dimensions of the Bailey platform base (1); S6: The height of the second support plate (6) and the top plate (8) of the Bailey bridge platform are then raised by the lifting device so that the accurate height is adapted to the longitudinal dimension of the area of ​​the Bailey bridge platform base (1) to be fixed. S7: Then insert the support steel plate (12) with the appropriate spacing between the first support plate (3) and the second support plate (6) into the corresponding first slot (11) and second slot (13) respectively; S8: Finally, the calibrated Bailey bridge platform base (1) and Bailey bridge platform top plate (8) are connected to the bolt connection cavity (15) by connecting bolts (14) to complete the overall fixation of the device; The top of the Bailey bridge platform base (1) is provided with a first support plate (3), and the top of the first support plate (3) is provided with three sets of guide components that are equally spaced. The top of the guide components is fixedly connected to the bottom of the second support plate (6), and the top of the second support plate (6) is provided with a Bailey bridge platform top plate (8). The bottom of the second support plate (6) is symmetrically abutting with abutting blocks (9), and the bottom of each abutting block (9) is connected with a connecting plate (10). A number of supporting steel plates (12) are provided between the bottom of the connecting plate (10) and the first support plate (3). The Bailey bridge platform base (1) is symmetrically installed with connecting bolts (14). The two ends of the supporting steel plate (12) are respectively engaged in the bottom end of the first slot (11) and the top end of the second slot (13), and the first slot (11) and the second slot (13) are respectively installed at the bottom end of the second support plate (6) and the top end of the first support plate (3). The inner wall of the bolt connection cavity (15) is threadedly connected to the outer wall of the connecting bolt (14), and the bottom end of the bolt connection cavity (15) is fixedly connected to the top end of the sliding block (16). The sliding block (16) is slidably connected inside one end of the sliding cavity (17). The bottom end of the sliding cavity (17) is fixedly connected to a connecting protrusion, and the connecting protrusion is set on the inner side wall of the guide groove (18). The top end of the sliding block (16) is installed with a first bolt anchor (19), and the bottom end of the first bolt anchor (19) extends to the inside of the top end of the connecting protrusion. The bottom end of the sliding cavity (17) is fixedly connected to the top end of the connecting rib (20), and the connecting rib (20) is embedded in the inside of the top end of the steel bracket fastener (21). One end of the steel bracket fastener (21) is fixedly connected to a mounting base (22), and one end of the mounting base (22) is fixedly connected with a series of reinforcing bars (23) at equal intervals. A number of second bolt anchors (24) are symmetrically installed through one end of the mounting base (22).

2. The construction method according to claim 1, characterized in that: In step S8, fixing the entire device includes the following steps: S8.1: Conduct measurement and layout to determine the accurate position of the Bailey bridge platform base (1); S8.2: The assembled Bailey bridge platform base (1) is connected to the lifting part of the truck crane; S8.3: The assembled Bailey bridge platform base (1) is horizontally lifted by the lifting part of the truck crane so that the connecting bolts (14) are aligned with the bolt connection cavity (15); S8.4: Finally, the device is fixed by connecting the bolt (14) to the bolt connection cavity (15).

3. The construction method according to claim 1, characterized in that: A plurality of first reinforcing ribs (2) are provided at equal intervals between the Bailey bridge platform base (1) and the first support plate (3), and the two ends of the first reinforcing ribs (2) are fixedly connected to the top end of the Bailey bridge platform base (1) and the bottom end of the first support plate (3), respectively. The first reinforcing ribs (2) are provided in an "X" shaped structure.

4. The construction method according to claim 1, characterized in that: The guiding assembly includes a guiding cavity (4) and a guiding block (5). The top end of the first support plate (3) is provided with a guiding cavity (4) at equal intervals, and the top end of the guiding cavity (4) is movably connected to the guiding block (5). The top end of the guiding block (5) is fixedly connected to the bottom end of the second support plate (6).

5. The construction method according to claim 1, characterized in that: A number of second reinforcing ribs (7) are provided between the top end of the second support plate (6) and the bottom end of the top plate (8) of the Bailey bridge platform. The two ends of the second reinforcing ribs (7) are fixedly connected to the top end of the second support plate (6) and the bottom end of the top plate (8) of the Bailey bridge platform, respectively. The second reinforcing ribs (7) are set in an "X" shape.

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