Overall construction device and method for railway suspension pouring box girder reinforcing steel bars

Abstract

The invention discloses an integral construction device and method for railway cantilever box girder reinforcing steel bars, which adopts a fabricated foundation to adjust the gradient, can adapt to construction grounds with various vertical and horizontal gradients, provides a flat building platform for reinforcing steel bar binding operation in a complex environment, and adopts an operation frame to perform reinforcing steel bar construction, so that the construction efficiency is improved. A worker can synchronously perform steel bar binding operation on each layer of worker operation area without high-altitude operation so as to quickly form the web steel bar cage, so that the web steel bar cage is integrally arranged in the steel bar cage forming area and is convenient to integrally hoist, and the steel bar construction efficiency, the binding quality and the safety are improved.

Description

Technical Field

[0001] The invention relates to the technical field of civil engineering, and in particular to a reinforcement construction device for a box beam. Background Art

[0002] Railway cantilever cast box girders are mostly used in environments such as crossing water, crossing roads, and crossing canyons. The main span ranges from tens of meters to one or two hundred meters. The traditional construction method of the box girder web reinforcement is to use a hanging basket as a support in the air, and set up temporary multi-layer scaffolding for each section to tie the steel bars. There are problems such as complicated installation and disassembly, high risks of high-altitude operations, and difficulty in effectively supervising the quality of high-altitude tying. As a result, it is difficult to ensure the construction efficiency, construction quality and safety of the box girder reinforcement.

[0003] Therefore, how to effectively improve the steel bar construction efficiency and construction quality of box girders and ensure safety during the construction process has become an urgent problem to be solved in this field. Summary of the Invention

[0004] In view of the defects of the prior art, the purpose of the present invention is to provide a railway suspended cast-in-place box girder steel bar integral construction device and method with high steel bar construction efficiency, binding quality and safety.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a railway cantilever box girder reinforcement integral construction device, comprising

[0006] The prefabricated foundation is placed on the construction ground and is configured to adjust the slope of the construction ground to form a flat steel bar construction platform.

[0007] A work frame is provided on the assembled foundation, and a worker work area and a steel cage forming area are respectively formed in the work frame, wherein the steel cage forming area is configured to accommodate the web steel cage therein, and the worker work area is distributed around the steel cage forming area and distributed along the height direction of the web steel cage.

[0008] A steel bar support is provided in the steel bar cage forming area, is used to support the web steel bar cage, and is configured to adjust the slope of the web steel bar cage.

[0009] Furthermore, the prefabricated foundation includes a panel, a foundation main beam, a foundation cross beam, a leveling pole and a pad. Several foundation main beams are evenly distributed along the construction ground. The first ends of the foundation main beams are respectively placed in cooperation with the construction ground through the pads, and the second ends are connected to each other through the foundation cross beams and are respectively placed in cooperation with the construction ground through height-adjustable leveling poles. The panel is arranged above the foundation main beam.

[0010] Furthermore, the prefabricated foundation also includes transverse connecting beams, which are used to connect a number of leveling poles, and the distribution number of the transverse connecting beams is adapted to the height of the leveling poles and the slope of the construction ground.

[0011] Furthermore, the prefabricated foundation also includes a concrete base, which is arranged on the construction ground and distributed corresponding to the foundation beams. The concrete base is provided with a plurality of placement holes that are compatible with the leveling poles.

[0012] Furthermore, the workers' working area is composed of work poles, horizontal connecting beams and diagonal braces. Several work poles are distributed on the panel around the steel cage forming area. Several horizontal connecting beams are evenly distributed along the height direction of the work poles and are distributed in an array with the work poles. The diagonal braces respectively connect the work poles and the horizontal connecting beams.

[0013] Furthermore, a guide rail for cooperating with the steel bar support is provided on the vertical pole corresponding to the side of the steel bar cage forming area.

[0014] Furthermore, there are four steel cage forming areas spaced apart in the worker working area.

[0015] Furthermore, the steel bar support includes a support main beam, a support cross beam and an inclination adjustment member. The support main beam and the support cross beam are configured as a frame connection structure. The inclination adjustment member is respectively arranged at both ends of the support main beam to adjust the distribution angle of the support main beam.

[0016] In order to achieve the above-mentioned object, the present invention provides a method for integrally constructing steel bars for railway cantilevered box girders, based on the above-mentioned device for integrally constructing steel bars for railway cantilevered box girders, and the method comprises:

[0017] Install the device, place the assembled foundation on the construction ground, and adjust the vertical and horizontal slopes to form a flat steel bar construction platform in conjunction with the construction ground. Set up the work frame and steel bar support on the assembled foundation, and adjust the placement slope of the steel bar support.

[0018] Rebar forming: Several workers in the work area of each layer of the work frame perform synchronous binding operations on the steel bars contained in the steel cage forming area to form a web steel cage.

[0019] The web reinforcement cage is hoisted out of the warehouse as a whole, and lifted from the reinforcement cage forming area to the designed position for installation.

[0020] The railway suspended cast-in-place box girder reinforcement overall construction device and method provided by the present invention adopts an assembled foundation to adjust the slope, can adapt to construction grounds with various longitudinal and transverse slopes, and provide a flat construction platform for reinforcement binding operations in complex environments. At the same time, a work frame is used for reinforcement construction, and workers can simultaneously carry out reinforcement binding operations in the worker work areas on each floor without the need for high-altitude operations, so as to quickly form a web reinforcement cage, so that the web reinforcement cage is placed as a whole in the reinforcement cage forming area, which is convenient for overall lifting, thereby improving the reinforcement construction efficiency, binding quality and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0022] Figure 1 This is a schematic diagram of the overall structure of the railway suspended cast-in-place box girder reinforcement integrated construction device provided by the present invention;

[0023] Figures 2 to 4 It is a structural schematic diagram of the prefabricated foundation in the present invention;

[0024] Figure 5 and Figure 6 It is a structural schematic diagram of the work frame in the present invention;

[0025] Figure 7 This is a schematic diagram of the connection and coordination of the work frame in the present invention;

[0026] Figure 8 and Figure 9 Schematic diagram of the matching structure of the guide rail and the working pole in the present invention;

[0027] Figure 10 Schematic diagram of the matching structure of the guide rail and the web reinforcement cage in the present invention;

[0028] Figure 11 Schematic diagram of the structure of the steel bar support in the present invention;

[0029] Figure 12 It is a construction schematic diagram of the construction device in the present invention.

[0030] Reference numerals:

[0031] 1. Prefabricated foundation; 11. Panel; 12. Foundation beam; 121. First end; 122. Second end; 13. Foundation beam; 14. Leveling pole; 15. Spacer; 16. Transverse connecting beam; 17. Concrete base;

[0032] 2. Work Frame; 21. Worker Work Area; 211. Work Pole; 212. Horizontal Connecting Beam; 213. Diagonal Bracing; 214. Threaded Connector; 22. Rebar Cage Forming Area; 221. Guide Rail; 222. First Connector; 223. Second Connector; 224. Guide Rail Mounting Hole; 225. Pole Mounting Hole; 226. Bolt Mounting Hole;

[0033] 3. Steel bar support; 31. Support main beam; 32. Support cross beam; 33. Inclination adjustment member; 331. First inclination adjustment member; 332. Second inclination adjustment member;

[0034] 4. Construction ground; 5. Web reinforcement cage. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below with reference to specific illustrations.

[0036] See also Figure 1 , which shows the overall structural schematic diagram of the railway suspended cast-in-place box girder reinforcement overall construction device provided by the present invention.

[0037] As can be seen from the figure, the overall construction device for the railway suspended cast-in-place box girder reinforcement in this example mainly includes an assembled foundation 1, a work frame 2 and a reinforcement support 3.

[0038] The prefabricated foundation 1 is placed on the construction ground 4 and is configured to cooperate with the construction ground 4 to adjust the slope to form a flat steel bar construction platform; the work frame 2 is set on the prefabricated foundation 1, and a worker work area 21 and a steel cage forming area 22 are formed in the work frame 2 respectively. The steel cage forming area 22 is configured to accommodate the web steel cage 5 therein, and the worker work area 21 is distributed around the steel cage forming area 22 and distributed along the height direction of the web steel cage 5; the steel bar support 3 is set in the steel cage forming area 22 to carry the web steel cage 5 and is configured to adjust the slope of the web steel cage 5.

[0039] In this way, workers can carry out steel bar binding operations simultaneously in the worker working areas 21 on each floor without having to perform high-altitude operations, so as to quickly form the web steel bar cage 5, so that the web steel bar cage 5 is placed as a whole in the steel bar cage forming area 22, which is convenient for overall lifting, thereby improving the steel bar construction efficiency, binding quality and safety.

[0040] Combine Figures 2 to 4The prefabricated foundation 1 includes a panel 11, a foundation main beam 12, a foundation cross beam 13, a leveling pole 14 and a pad 15. The panel 11, the foundation main beam 12, the foundation cross beam 13, the leveling pole 14 and the pad 15 can cooperate with each other to form a platform with a stable structure and adjustable slope, so that the prefabricated foundation 1 can adapt to construction ground 4 with various longitudinal and transverse slopes, providing a flat construction platform for steel bar binding operations in complex environments.

[0041] Specifically, several foundation main beams 12 are evenly distributed in parallel along the construction ground 4, the first ends 121 of several foundation main beams 12 are respectively placed on the construction ground 4 through pads 15, and the second ends 122 are connected to each other through the foundation cross beam 13. Several leveling poles 14 are arranged below the foundation cross beam 13 and are respectively arranged corresponding to each foundation main beam 12, so that the second ends 122 of several foundation main beams 12 are respectively placed on the construction ground 4 through the leveling poles 14, and the panels 11 are arranged above the several foundation main beams 12.

[0042] In this way, the two ends of the foundation main beam 12 are respectively placed on the construction ground 4 through pads 15 and leveling poles 14. The leveling poles 14 are configured to be height-adjustable. The height of the leveling poles 14 can be adjusted according to the slope of the construction ground 4 to adjust the distribution slope of the foundation main beam 12, and adjust the prefabricated foundation 1 to a horizontal distribution to form a flat steel bar construction platform.

[0043] Combine Figure 4 As an example, the first end 121 of the foundation main beam 12 is placed on the horizontal section of the construction site 4 through the pad 15, and the second end 122 is placed on the slope section of the construction site 4 through the leveling pole 14. According to the longitudinal slope and transverse slope of the slope section, the height of each leveling pole 1 is adjusted respectively, so that the heights of the leveling poles 1 are gradually distributed to match the slope section, and the longitudinal distribution slope and transverse distribution slope of the foundation main beam 12 are adjusted in coordination with each other to level the foundation main beam 12 so that the panel 11 is horizontally distributed to form a flat steel bar construction platform.

[0044] Furthermore, for the overall inclined construction site 4, the first end 121 of the foundation main beam 12 is placed on the upper section of the slope of the construction site 4 through the pad 15, and the second end 122 is placed on the lower section of the slope of the construction site 4 through the leveling pole 14. The bottom surface of the pad 15 is configured as an inclined bottom surface adapted to the slope. At the same time, the height of each leveling pole 1 is adjusted separately according to the longitudinal slope and the transverse slope of the slope section, so that the pad 15 and the leveling pole 1 cooperate to level the foundation main beam 12, thereby making the prefabricated foundation 1 suitable for any construction site.

[0045] Here, there is no limitation on the specific structure of the leveling pole 14. As an example, the leveling pole 14 can be composed of an existing hydraulic telescopic pole, and can also directly replace a pole of corresponding height to adjust the height.

[0046] Combine Figure 3 and Figure 4 Furthermore, the prefabricated foundation 1 also includes a transverse connecting beam 16, which is arranged below the foundation beam 13 and distributed corresponding to the foundation beam 13, connecting several leveling poles 14 to each other to strengthen the lateral stability between the leveling poles 14 and ensure that the foundation main beam 11 maintains a horizontal distribution.

[0047] At the same time, the distribution number and length of the transverse connecting beams 16 are adaptively adjusted according to the height of the leveling poles 14 and the slope of the construction site 4, so that the transverse connecting beams 16 can be distributed in several rows along the height of the leveling poles 14 without interfering with the construction site 4, thereby ensuring the lateral stability between the leveling poles 14.

[0048] Combine Figures 2 to 4 In order to improve the structural stability of the prefabricated foundation 1, the prefabricated foundation 1 also includes a concrete base 17. The concrete base 17 is set on the construction ground 4 and distributed corresponding to the foundation beam 13. The concrete base 17 is provided with a plurality of placement holes adapted to the leveling poles 14, so that the leveling poles 14 can be directly inserted into the placement holes and stably placed on the construction ground 4 through the concrete base 17, thereby ensuring the structural stability of the leveling poles 14 and facilitating the replacement and turnover of the leveling poles 14.

[0049] The assembled foundation 1 thus formed can cooperate with the construction ground 4 to adjust the slope, providing a stable and flat steel bar construction platform for subsequent steel bar operations.

[0050] Combine Figure 5 and Figure 6 In coordination with it, the work frame 2 is set on the prefabricated foundation 1, and is respectively formed with a worker working area 21 and a steel cage forming area 22, so that workers can stand on the worker working area 21 to synchronously tie the steel bars in the steel cage forming area 22 to quickly form the web steel cage 5 as a whole, which is convenient for lifting and improves construction efficiency and safety.

[0051] Specifically, the worker's working area 21 is composed of a working pole 211, a horizontal connecting beam 212 and a diagonal brace 213. Several working poles 211 are arranged in an array on the panel 11, and an area that can accommodate the web steel cage 5 is reserved in the array-distributed working poles 211 to form a steel cage forming area 22.

[0052] Furthermore, a plurality of horizontal connecting beams 212 are evenly distributed along the height direction of the working poles 211, and are distributed in an array with the working poles 211, so that the working poles 211 and the horizontal connecting beams 212 are matched with a plurality of frames on the panel 11. At the same time, the diagonal braces 213 respectively connect the working poles 211 and the horizontal connecting beams 212 in each frame to ensure a stable connection between the working poles 211 and the horizontal connecting beams 212, and provide a place for workers to stand.

[0053] In this way, the work poles 211, the horizontal connecting beams 212 and the diagonal braces 213 cooperate with each other to form a worker work area 21 distributed around the steel cage forming area 22, and a number of frames for workers to stand are formed on each layer of the worker work area 21, so that workers can be distributed on each layer of the worker work area 21, and simultaneously tie the steel bars in the steel cage forming area 22, so as to quickly form the web steel cage 5 as a whole, and make the web steel cage 5 as a whole placed in the steel cage forming area 22, which is convenient for subsequent lifting, improves construction efficiency, reduces the risk of high-altitude operations, and improves construction safety.

[0054] Furthermore, the work pole 211, the horizontal connecting beam 212 and the diagonal brace 213 are preferably configured as a disc-type connection structure, and are detachably connected through the disc-type connector 214, such as Figure 7 As shown, it is convenient for the quick connection and disassembly of the working poles 211, the horizontal connecting beams 212 and the diagonal braces 213, so that the working poles 211, the horizontal connecting beams 212 and the diagonal braces 213 can be arranged according to the size structure of the web reinforcement cage 5 to form a reinforcement cage forming area 22 that is compatible with the web reinforcement cage 5, ensuring that the web reinforcement cage 5 can be accommodated in the reinforcement cage forming area 22, and a certain space is reserved to facilitate the workers' reinforcement binding work, and at the same time facilitate the web reinforcement cage 5 to be lifted out of the reinforcement cage forming area 22.

[0055] Preferably, four reinforcement cage forming areas 22 are spaced apart in the worker operation area 21 , so that workers can simultaneously perform the binding operation of four web reinforcement cages 5 in the worker operation area 21 without interfering with each other, thereby improving construction efficiency.

[0056] Combine Figure 5 and Figure 6 In order to stably lift the web reinforcement cage 5, a guide rail 221 is provided on the inner side of the reinforcement cage forming area 22. The guide rail 221 is set on the working pole 211 on the side corresponding to the reinforcement cage forming area 22, and is distributed at both ends of the reinforcement cage forming area 22, corresponding to the two ends of the web reinforcement cage 5, and distributed along the height direction of the working pole 211, so that the web reinforcement cage 5 can move axially in the reinforcement cage forming area 22 along the guide rail 221, guiding the lifting direction of the web reinforcement cage 5, so that the web reinforcement cage 5 can be stably lifted to the designed position and connected to the railway bridge.

[0057] See also Figure 8 and Figure 9 As an example, the guide rail 221 can be made of steel and is set on the work pole 211 through a symmetrically distributed first connecting member 222 and a second connecting member 223. After the first connecting member 222 and the second connecting member 223 are enclosed, one end forms a guide rail mounting hole 224 adapted to the steel flange, and the other end forms a pole mounting hole 225 adapted to the work pole 211. At the same time, bolt mounting holes 226 are respectively provided on the opposite sides of the first connecting member 222 and the second connecting member 223.

[0058] In this way, the flange of the guide rail 221 is distributed correspondingly to the work pole 211, the first connecting member 222 and the second connecting member 223 can be symmetrically distributed and enclosed, and the flange of the guide rail 221 is embedded in the guide rail mounting hole 224, the work pole 211 is embedded in the pole mounting hole 225, and bolts are inserted into the bolt mounting holes 226 to fasten the first connecting member 222 and the second connecting member 223, so that the guide rail 221 can be attached to the work pole 211.

[0059] At the same time, the edges of both ends of the web reinforcement cage 5 can be placed on the flanges of the guide rails 221 and can be lifted out smoothly along the flanges. Figure 10 shown.

[0060] With the work frame 2 thus constructed, workers can simultaneously carry out steel bar binding operations in the worker work areas 21 on each floor, reducing the risk of high-altitude operations and improving construction safety. It can also quickly form the web steel bar cage 5, and accommodate the web steel bar cage 5 as a whole in the steel cage forming area 22, and hoist it out of the steel cage forming area 22 as a whole through the guide rail 221, thereby improving construction efficiency.

[0061] In conjunction with this, a steel bar support 3 is provided in the steel bar cage forming area 22, so that the steel bar support 3 can carry the web steel bar cage 5 and adjust the distribution slope of the web steel bar cage 5 so that the bottom surface slope of the web steel bar cage 5 is consistent with the ground slope of the railway bridge beam section, thereby improving the lifting efficiency and accuracy of the web steel bar cage 5.

[0062] Combine Figure 11 Specifically, the steel bar support 3 includes a support main beam 31, a support cross beam 32 and an inclination adjustment member 33. The support main beam 31 and the support cross beam 32 are configured as a frame connection structure to carry the web steel bar cage 5. The inclination adjustment member 33 is respectively arranged at both ends of the support main beam 31 to adjust the distribution inclination of the support main beam 31, thereby adjusting the slope of the bottom surface of the web steel bar cage 5.

[0063] Furthermore, the inclination adjusting member 33 includes a first inclination adjusting member 331 and a second inclination adjusting member 332 respectively arranged at both ends of the bracket main beam 31. By adjusting the height of the second inclination adjusting member 332, the distribution inclination angle of the bracket main beam 31 can be adjusted. Accordingly, the bottom surface of the first inclination adjusting member 331 is configured as an inclined bottom surface adapted to the distribution inclination angle of the bracket main beam 31, so that the first inclination adjusting member 331 can be close to the panel 11, ensuring the stable placement of the steel bar bracket 3.

[0064] In this way, the steel support 3 can bear and adjust the distribution slope of the web steel cage 5, ensuring that the bottom slope of the web steel cage 5 is consistent with the ground slope of the railway bridge beam section, thereby improving the lifting efficiency and accuracy of the web steel cage 5.

[0065] Thus, the railway suspended cast-in-place box girder reinforcement integral construction device provided by the present invention is formed.

[0066] The present invention also provides a method for integrally constructing steel bars for a railway cantilevered box girder. The method comprises:

[0067] S1: Installation of the device, placing the prefabricated foundation 1 on the construction ground 4, and adjusting the vertical and horizontal slopes, forming a flat steel bar construction platform with the construction ground 4, setting up the work frame 2 and steel bar support 3 on the prefabricated foundation 1, and adjusting the placement slope of the steel bar support 3, preparing to carry out the web reinforcement cage 5 binding operation, such as Figure 1 shown.

[0068] The two ends of the foundation main beam 12 of the prefabricated foundation 1 are respectively placed on the construction ground 4 through pads 15 and leveling poles 14. According to the longitudinal slope and transverse slope of the slope section, the height of each leveling pole 1 is adjusted respectively, so that the heights of several leveling poles 1 are gradually distributed to match the slope section, and the longitudinal distribution slope and transverse distribution slope of the foundation main beam 12 are adjusted in coordination with each other to level the foundation main beam 12 so that the panel 11 is horizontally distributed to form a flat steel bar construction platform.

[0069] The work frame 2 is erected on the panel 11 of the prefabricated foundation 1 and forms a reinforcement cage forming area 22 adapted to the web reinforcement cage 5 , and worker working areas 21 are distributed around the reinforcement cage forming area 22 .

[0070] Next, the steel bar supports 3 are placed in the steel bar cage forming area 22, and the angles of the steel bar supports 3 are adjusted to ensure that the distribution angles of the steel bar supports 3 are consistent with the ground slope of the railway bridge beam section.

[0071] S2: Rebar forming: a number of workers perform simultaneous binding operations on the rebars contained in the rebar cage forming area 22 on the worker working areas 21 of each layer of the work frame 2 to form a web rebar cage 5 .

[0072] Workers simultaneously perform binding operations on four web reinforcement cages 5 in the worker operation area 21 to form four web reinforcement cages 5 .

[0073] S3: hoist the entire cage out of the warehouse, hoist the web reinforcement cage 5 from the reinforcement cage forming area 22 to the designed position and install it in place. Figure 12 shown.

[0074] According to the construction progress requirements, the web reinforcement cage 5 that has been tied up is hoisted out piece by piece along the guide rail 221 and hoisted to the designed position for installation.

[0075] The railway suspended cast-in-place box girder reinforcement overall construction device and method provided by the present invention are applicable to any construction site through the mutual cooperation of the assembled foundation 1, the work frame 2 and the reinforcement support 3. On the ground, workers stand in the worker work area 21 of each layer and synchronize the reinforcement binding operation to quickly form a web reinforcement cage and hoist the web reinforcement cage 5 as a whole, thereby improving construction efficiency and safety.

[0076] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A railway cantilever box girder reinforcement integral construction device, characterized in that: include The prefabricated foundation is placed on the construction ground and is configured to adjust the slope of the construction ground to form a flat steel bar construction platform. A work frame is provided on the assembled foundation, and a worker work area and a steel cage forming area are respectively formed in the work frame, wherein the steel cage forming area is configured to accommodate the web steel cage therein, and the worker work area is distributed around the steel cage forming area and distributed along the height direction of the web steel cage. A steel bar support is provided in the steel bar cage forming area, is used to support the web steel bar cage, and is configured to adjust the slope of the web steel bar cage.

2. The railway cantilever box girder reinforcement integral construction device according to claim 1 is characterized in that: The prefabricated foundation includes a panel, a foundation main beam, a foundation cross beam, a leveling pole and a pad. Several foundation main beams are evenly distributed along the construction ground. The first ends of the foundation main beams are respectively placed in cooperation with the construction ground through the pads, and the second ends are connected to each other through the foundation cross beams and are respectively placed in cooperation with the construction ground through height-adjustable leveling poles. The panel is arranged above the foundation main beam.

3. The railway cantilever box girder reinforcement integral construction device according to claim 2, characterized in that: The prefabricated foundation further includes transverse connecting beams, which are used to connect a number of leveling poles, and the number of the transverse connecting beams is adapted to the height of the leveling poles and the slope of the construction ground.

4. The railway cantilever box girder reinforcement integral construction device according to claim 3 is characterized in that: The assembled foundation further comprises a concrete base, which is arranged on the construction ground and distributed corresponding to the foundation beams. The concrete base is provided with a plurality of placement holes adapted to the leveling poles.

5. The railway cantilever box girder reinforcement integral construction device according to claim 4 is characterized in that: The workers' working area is composed of working poles, horizontal connecting beams and diagonal braces. Several working poles are distributed on the panel around the steel cage forming area. Several horizontal connecting beams are evenly distributed along the height direction of the working poles and are distributed in an array with the working poles. The diagonal braces respectively connect the working poles and the horizontal connecting beams.

6. The railway cantilever box girder reinforcement integral construction device according to claim 5, characterized in that: A guide rail for cooperating with the steel bar support is provided on the working upright pole corresponding to the side of the steel bar cage forming area.

7. The railway cantilever box girder reinforcement integral construction device according to claim 6, characterized in that: There are four steel cage forming areas spaced apart in the worker's working area.

8. The railway cantilever box girder reinforcement integral construction device according to claim 6, characterized in that: The steel bar support includes a support main beam, a support cross beam and an inclination adjustment member. The support main beam and the support cross beam are configured into a frame connection structure. The inclination adjustment member is respectively arranged at both ends of the support main beam to adjust the distribution angle of the support main beam.

9. A method for integrally constructing steel bars for railway cantilevered box girders, characterized in that: Based on the railway cantilever box girder reinforcement integral construction device according to any one of claims 1 to 8, the construction method comprises: Install the device, place the assembled foundation on the construction ground, and adjust the vertical and horizontal slopes to form a flat steel bar construction platform in conjunction with the construction ground. Set up the work frame and steel bar support on the assembled foundation, and adjust the placement slope of the steel bar support. Rebar forming: Several workers in the work area of each layer of the work frame perform synchronous binding operations on the steel bars contained in the steel cage forming area to form a web steel cage. The web reinforcement cage is hoisted out of the warehouse as a whole, and lifted from the reinforcement cage forming area to the designed position for installation.

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