Continuous beam overhead structure and construction method thereof

Abstract

The application relates to the field of frame bridge construction, in particular to a continuous beam overhead structure, which comprises two cross beams arranged on opposite sides of a continuous beam, a supporting beam is arranged on the cross beam, the supporting beam is arranged below the continuous beam and abuts against the continuous beam, the two ends of the supporting beam abut against the two cross beams respectively, a first pushing assembly for pushing the supporting beam to move along the length direction of the cross beam is arranged on the cross beam; the first pushing assembly comprises a first rotating shaft rotating on the cross beam and a first pushing plate fixed on the first rotating shaft, and the first pushing plate is used for pushing the supporting beam to move on the cross beam. The application has the effect that the mounting holes on the supporting beam and the mounting holes on the cross beam can be corresponded.

Description

Technical Field

[0001] This application relates to the technical field of frame bridge construction, and in particular to a continuous beam overhead structure and its construction method. Background Technology

[0002] The frame bridge is constructed using a jacking method. Before jacking, the railway track or continuous beam needs to be supported. For example, if a frame bridge is to be installed under a continuous beam, the continuous beam must first be supported, and then the prefabricated frame bridge is installed under the continuous beam. This ensures that normal traffic above the continuous beam is not affected, while the frame bridge can still be installed.

[0003] When the existing continuous beam is erected, concrete support piers are first poured on both sides of the continuous beam. Then, the crossbeams are placed on the support piers. Multiple support beams are installed below the continuous beam to support it, which facilitates excavation below the continuous beam and makes it easier to move the frame bridge below the continuous beam. After the support beams are installed, if the mounting holes on the support beams and the mounting holes on the crossbeams do not correspond, workers need to manually move the support beams multiple times to match the mounting holes on the support beams and the crossbeams. Only then can bolts be inserted into the mounting holes to fix the support beams and crossbeams.

[0004] Since the upper surface of the support beam abuts against the continuous beam and the lower surface abuts against the crossbeam, and the continuous beam has a certain weight pressing on the support beam, when the mounting holes on the crossbeam and the mounting holes on the support beam do not correspond, the staff needs to manually move the position of the support beam multiple times, which is very inconvenient when moving the position of the support beam. Summary of the Invention

[0005] To facilitate the correspondence between the mounting holes on the support beam and the mounting holes on the crossbeam, this application provides a continuous beam overhead structure and its construction method.

[0006] Firstly, the continuous beam overhead structure provided in this application adopts the following technical solution: A continuous beam overhead structure includes two crossbeams on both sides of a continuous beam. A support beam is mounted on each crossbeam, positioned below and abutting against the continuous beam. Both ends of the support beam abut against the two crossbeams. A first pushing assembly is mounted on each crossbeam for pushing the support beam to move along the length of the crossbeam. The first pushing assembly includes a first rotating shaft rotating on the crossbeam and a first pushing plate fixed on the first rotating shaft. The first pushing plate is used to push the support beam to move on the crossbeam.

[0007] By adopting the above technical solution, when constructing an overhead continuous beam, firstly, cast-in-place support piers are set on both sides of the continuous beam, with two support piers on each side. The crossbeam is then erected on the two support piers. Then, a support beam is installed above the crossbeam, with the support beam positioned along the width of the continuous beam and both ends extending out to abut against the crossbeam. When the mounting holes on the crossbeam and the mounting holes on the support beam do not correspond, the first rotating shaft is directly rotated. The first rotating shaft drives the first pushing plate to rotate towards the support beam, and then the first pushing plate pushes the support beam to move on the crossbeam. Through the movement of the support beam, the mounting holes on the support beam and the mounting holes on the crossbeam are aligned, making it easier to fix the crossbeam and the support beam together with bolts inserted into the mounting holes.

[0008] Optionally, multiple support beams are provided, and the multiple support beams are spaced apart along the length direction of the crossbeam. Multiple first pushing components are also provided, and the multiple first pushing components correspond one-to-one with the multiple support beams. The multiple first pushing components are used to push the multiple support beams to move. A linkage component is provided on the crossbeam, and the linkage component is used for the multiple first pushing plates to push the multiple support beams to move simultaneously.

[0009] By adopting the above technical solution, since multiple support beams are set, and multiple first pushing components are also set, the multiple support beams can improve the stability of the continuous beam support, the multiple first pushing components can adjust the position of multiple support beams, and under the action of the linkage component, when multiple support beams need to be moved, the linkage component can drive multiple first pushing components to work at the same time.

[0010] Optionally, the linkage assembly includes a movable rod sliding on the crossbeam and a plurality of telescopic rods hinged to the movable rod. The movable rod is arranged along the length direction of the crossbeam and one end extends out of the crossbeam. The end of the telescopic rod away from the movable rod is fixedly installed on the first rotating shaft. The plurality of telescopic rods and the plurality of first pushing assemblies correspond one-to-one.

[0011] By adopting the above technical solution, when the first rotating shaft needs to rotate, the moving rod is directly pushed. Under the action of the moving rod, the telescopic rod is driven to rotate on the moving rod, which in turn causes the end of the telescopic rod away from the moving rod to drive the first rotating shaft to rotate on the crossbeam, and causes the first push plate to rotate towards the support beam. The longer the moving rod extends into the crossbeam, the greater the angle of rotation of the first push plate, and thus the greater the distance that the support beam moves on the crossbeam.

[0012] Optionally, the movable rod is provided with a drive assembly, which includes a worm gear rotating on the crossbeam and a worm meshing with the worm gear. The worm is rotatably connected to the crossbeam, and the movable rod passes through the worm and is threadedly connected to the worm.

[0013] By adopting the above technical solution, when it is necessary to adjust the position of the support beam, the worm can be rotated directly. Since the worm and worm wheel mesh, the worm wheel is driven to rotate, and the worm wheel drives the moving rod to move on the crossbeam. On the one hand, the worm and worm wheel have a self-locking function, and on the other hand, it is more convenient to push the moving rod to move.

[0014] Optionally, multiple connecting blocks are slidably connected to the movable rod, and the connecting blocks are slidably connected to the crossbeam. The multiple connecting blocks correspond one-to-one with the multiple telescopic rods. The end of the telescopic rod away from the first rotation axis is hinged to the connecting block. The crossbeam is provided with a fixing member for fixing the connecting block to the movable rod.

[0015] By adopting the above technical solution, since the connecting block is slidably connected to the moving rod, when it is necessary to drive the push plate to rotate, the connecting block is fixed to the moving rod by the fixing component, thereby causing the moving rod to move and drive the push plate to rotate. In addition, since multiple connecting blocks are provided, the position of one of the support beams can be adjusted individually, or the positions of multiple support beams can be adjusted, thus making it more convenient to use.

[0016] Optionally, the fixing member is configured as a fixing rod that slides on the connecting block, with one end of the fixing rod away from the connecting block extending out of the crossbeam. The moving rod has a fixing groove. When the fixing rod moves into the fixing groove, the connecting block is fixed on the moving rod. The crossbeam has a clearance groove for the fixing rod to slide.

[0017] By adopting the above technical solution, when it is necessary to fix the connecting block on the moving rod, the fixing rod is pushed to move the fixing rod into the fixing groove. At the same time, due to the setting of the relief groove, when the moving rod drives the connecting block to move, the fixing rod can slide in the relief groove.

[0018] Optionally, a limiting rod is fixedly installed at one end of the fixed rod extending out of the crossbeam, and the limiting rod is used to abut against the side of the crossbeam.

[0019] By adopting the above technical solution, when the limiting rod abuts against the side of the crossbeam, the fixing rod is on the connecting block. When it is necessary to fix the connecting block on the moving rod, the limiting rod is rotated, and the limiting rod drives the fixing rod to rotate. When the limiting rod rotates and corresponds to the relief groove, the limiting rod is pushed and moves into the relief groove. At this time, the fixing rod moves into the fixing groove, thereby realizing the fixation of the position of the connecting block.

[0020] Optionally, the fixing rod is fitted with a locking spring, one end of which is mounted on the connecting block and the other end is fixedly mounted on the limiting rod. The locking spring is used to pull the fixing rod into the fixing groove.

[0021] By adopting the above technical solution, when the limiting rod rotates to correspond with the relief groove, the locking spring directly pulls the fixing rod into the fixing groove, and at the same time moves the limiting rod into the relief groove, making it more convenient to use.

[0022] Optionally, a second pushing component is also provided on the crossbeam, the second pushing component being used to push the support beam to move in the opposite direction to the direction in which the first pushing component pushes the support beam to move on the crossbeam.

[0023] By adopting the above technical solution, when the support beam needs to move in the opposite direction, it can be accomplished by setting the second pushing component, thus making it more convenient to adjust the position of the support beam.

[0024] Secondly, this application also provides a construction method for continuous beams under suspension, employing the following technical solution: S1: Place a crossbeam on the support pier on the same side of the continuous beam; S2: A support beam is installed below the continuous beam so that the support beam abuts against the bottom surface of the continuous beam and at the same time against the crossbeam; S3: Place multiple support beams on the crossbeam; S4: Push the corresponding fixing rod into the fixing groove by adjusting the support beam as needed; S5: The first or second push component drives the support beam to move on the crossbeam; S6: The mounting holes on the support beam and the crossbeam correspond to each other. Bolts are inserted into the mounting holes to fix the crossbeam and the support beam. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0026] Figure 2 This is a schematic diagram of the connection between the crossbeam and the support beam in an embodiment of this application.

[0027] Figure 3 This is a schematic diagram showing the connection between the linkage component, the first pushing component, and the second pushing component in an embodiment of this application.

[0028] Figure 4 yes Figure 3 Enlarged view of point B in the middle.

[0029] Figure 5 This is a schematic diagram of the first push plate and the support beam abutting in an embodiment of this application.

[0030] Figure 6 yes Figure 1 Enlarged view of point A in the middle.

[0031] Reference numerals: 1. Support pier; 11. Crossbeam; 12. Support beam; 13. Second pushing assembly; 14. Mounting groove; 2. First pushing assembly; 21. First rotating shaft; 22. First pushing plate; 3. Linkage assembly; 31. Moving rod; 32. Telescopic rod; 4. Connecting block; 41. Limiting rod; 5. Fixing component; 51. Fixing rod; 6. Fixing groove; 61. Leaving groove; 62. Locking spring; 7. Drive assembly; 71. Worm gear; 72. Worm; 8. Limiting block. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0033] Firstly, this application discloses a continuous beam overhead structure. (Refer to...) Figure 1 and Figure 2 A continuous beam overhead structure includes a crossbeam 11 mounted on a support pier 1, the crossbeam 11 being arranged along the length of the continuous beam. A support beam 12 is mounted above the crossbeam 11, the support beam 12 being arranged along the width of the continuous beam. The upper surface of the support beam 12 abuts against the bottom surface of the continuous beam, and the lower surface of the support beam 12 abuts against the upper surface of the crossbeam 11. A first pushing component 2 and a second pushing component 13 are mounted on the crossbeam 11. The first pushing component 2 and the second pushing component 13 are respectively used to push the support beam 12 to move in opposite directions on the crossbeam 11, thereby facilitating the adjustment of the position of the support beam 12 on the crossbeam 11, and making it easy to align the mounting holes on the support beam 12 with the mounting holes on the crossbeam 11.

[0034] Reference Figure 1 and Figure 2 Multiple support beams 12 are provided on the crossbeam 11, and the support beams 12 are evenly spaced along the length of the crossbeam 11. The multiple support beams 12 improve the support effect of the continuous beam when it is suspended. At the same time, multiple first pushing components 2 and second pushing components 13 are also provided, and each of the multiple first pushing components 2 and second pushing components 13 corresponds to one of the multiple support beams 12. The crossbeam 11 is designed as a hollow structure, and multiple mounting slots 14 are opened on the side of the crossbeam 11 away from the support pier 1. The mounting slots 14 are connected to the interior of the crossbeam 11 and are used to install the first pushing components 2 and second pushing components 13.

[0035] Reference Figure 3 and Figure 4 The first pushing assembly 2 includes a first rotating shaft 21 and a first pushing plate 22. The two ends of the first rotating shaft 21 are rotatably connected to the crossbeam 11. The axis of the first rotating shaft 21 is arranged along the width direction of the continuous beam. The first pushing plate 22 is welded to the first rotating shaft 21. In its initial state, the first pushing plate 22 is on the same horizontal plane as the upper surface of the crossbeam 11 and is located within the mounting groove 14. Figure 5 In this embodiment, in order to facilitate the first push plate 22 to push the support beam 12 to move on the crossbeam 11, when the first push plate 22 is rotated to the vertical state, the height of the first push plate 22 is less than the height of the support beam 12. Therefore, when the first push plate 22 is rotated, the end of the first push plate 22 away from the first rotation axis 21 abuts against the side of the support beam 12, which makes it more convenient to push the support beam 12 to move on the crossbeam 11.

[0036] Reference Figure 3 and Figure 4 Each support beam 12 has a first pushing component 2 and a second pushing component 13 on both sides, so that the support beam 12 is located between the first pushing component 2 and the second pushing component 13. Then, the first pushing component 2 drives the support beam 12 to move, and the second pushing component 13 drives the support beam 12 to move in the opposite direction. In this embodiment, the structure and working principle of the second pushing component 13 and the first pushing component 2 are the same, and the specific structure of the second pushing component 13 will not be described in detail.

[0037] Reference Figure 3 and Figure 4 A linkage component 3 is provided on the crossbeam 11. The linkage component 3 is used to drive multiple first push plates 22 to rotate simultaneously on the crossbeam 11. The linkage component 3 includes a moving rod 31 and multiple telescopic rods 32. The moving rod 31 slides along the length direction of the crossbeam 11, and one end of the moving rod 31 extends out of the end face of the crossbeam 11. A connecting block 4 is slidably connected to the moving rod 31. Multiple connecting blocks 4 are provided. Multiple connecting blocks 4 correspond one-to-one with multiple telescopic rods 32. Multiple telescopic rods 32 also correspond one-to-one with multiple support beams 12.

[0038] Reference Figure 3 and Figure 4 The telescopic rod 32 includes a thick rod and a thin rod. The thick rod is sleeved on the thin rod, and the thin rod is slidably connected to the thick rod. The end of the thick rod away from the thin rod is hinged to the connecting block 4, and the end of the thin rod away from the thick rod is fixedly connected to the first rotating shaft 21. Each connecting block 4 is provided with a fixing member 5, which is used to fix the connecting block 4 to the moving rod 31. When the fixing member 5 fixes the connecting block 4 to the moving rod 31, it pushes the moving rod 31, which, under the action of the telescopic rod 32, can drive the first rotating shaft 21 to rotate on the crossbeam 11, thereby driving the first push plate 22 to rotate towards the support beam 12. Since there are multiple connecting blocks 4, when multiple connecting blocks 4 are fixed to the moving rod 31 by the fixing members 5, the moving rod 31 moves, which can drive multiple first push plates 22 to rotate simultaneously. When it is necessary to adjust the position of one of the support beams 12, the corresponding connecting block 4 is directly fixed to the moving rod 31 by the fixing member 5.

[0039] Reference Figure 3 and Figure 4 The fixing member 5 is set as a fixing rod 51, which is a cylindrical rod. The fixing rod 51 is set along the width direction of the support beam 12 and passes through the connecting block 4. Multiple fixing slots 6 are opened on the moving rod 31. The fixing slots 6 are evenly spaced along the length direction of the moving rod 31. When it is necessary to fix the position of the connecting block 4, the fixing rod 51 is directly pushed to move the fixing rod 51 into the fixing slot 6. The connecting block 4 is fixed on the moving rod 31. Then, the movement of the moving rod 31 can drive the corresponding connecting block 4 to move, which facilitates the rotation of the first push plate 22 through the telescopic rod 32.

[0040] Reference Figure 3 and Figure 4 A clearance groove 61 is provided on the side of the crossbeam 11, extending along the length of the crossbeam 11. The end of the fixing rod 51 furthest from the connecting block 4 extends from the clearance groove 61. A limiting rod 41 is welded to the end of the fixing rod 51 extending from the clearance groove 61. The limiting rod 41 and the fixing rod 51 are perpendicularly arranged. When the fixing rod 51 disengages from the fixing groove 61, the limiting rod 41 is vertically arranged and abuts against the side of the crossbeam 11. Figure 5 When it is necessary to move the fixed rod 51 into the fixed groove 6, directly rotate the limiting rod 41 to make the limiting rod 41 rotate to a horizontal state. At this time, the limiting rod 41 corresponds to the relief groove 61. Then push the limiting rod 41, and the limiting rod 41 will drive the fixed rod 51 to move into the fixed groove 6. At this time, the limiting rod 41 is in the relief groove 61.

[0041] Reference Figure 3 and Figure 4 A locking spring 62 is fitted onto the fixed rod 51. One end of the locking spring 62 is rotatably connected to the connecting block 4, and the other end is welded to the limiting rod 41. When the limiting rod 41 is vertically set and the fixed rod 51 is disengaged from the fixing groove 6, the locking spring 62 is in a stretched state. When the connecting block 4 needs to be fixed on the moving rod 31, the limiting rod 41 is rotated to a horizontal position. Then, under the action of the locking spring 62, the fixed rod 51 and the limiting rod 41 are pulled towards the connecting block 4, thereby pulling the fixed rod 51 into the fixing groove 6, which makes it more convenient to fix the position of the connecting block 4.

[0042] Reference Figure 1 and Figure 6 A drive assembly 7 is provided on the crossbeam 11. The drive assembly 7 is used to drive the moving rod 31 to move on the crossbeam 11. The drive assembly 7 includes a worm gear 71 and a worm 72. The worm gear 71 and the worm 72 mesh with each other. The worm gear 71 is rotatably connected to the end face of the crossbeam 11, and the worm 72 is also rotatably connected to the end face of the crossbeam 11. At the same time, the moving rod 31 passes through the worm gear 71, and an external thread is provided on the moving rod 31 so that the worm gear 71 and the moving rod 31 are threadedly connected. Figure 3 A limiting block 8 is welded onto the moving rod 31. The limiting block 8 is slidably connected to the crossbeam 11, which can prevent the moving rod 31 from rotating on the crossbeam 11. When the moving rod 31 needs to slide, the worm 72 is directly rotated. The worm 72 drives the worm wheel 71 to rotate. Since the worm wheel 71 and the moving rod 31 are threadedly connected, the moving rod 31 is thus driven to slide on the crossbeam 11.

[0043] Reference Figure 2 and Figure 3 Each crossbeam 11 is equipped with two movable rods 31. One movable rod 31 drives the first pushing component 2, and the other movable rod 31 drives the second pushing component 13. Two drive components 7 are also provided, positioned at opposite ends of the crossbeam 11, facilitating adjustment of the positions of the two movable rods 31. The two movable rods 31 are equipped with the same number of connecting blocks 4, and each connecting block 4 is equipped with a fixing member 5. In this embodiment, two crossbeams 11 are also provided, each equipped with a first pushing component 2 and a second pushing component 13.

[0044] The implementation principle of a continuous beam overhead structure according to an embodiment of this application is as follows: When it is necessary to suspend the continuous beam, firstly, support piers 1 are pre-embedded on both sides of the continuous beam. Then, a crossbeam 11 is placed on the support piers 1, and multiple support beams 12 are placed on the crossbeam 11, so that the support beams 12 are located below the continuous beam and abut against the lower surface of the continuous beam. Then, the lower surface of the support beam 12 abuts against the upper surface of the crossbeam 11. At this time, the support beam 12 is fixed to the crossbeam 11 by bolts. When the mounting holes on the support beam 12 and the mounting holes on the crossbeam 11 do not correspond, the corresponding fixing rod 51 is inserted into the fixing groove 6. Then, the worm gear 72 is rotated, and the worm gear 72 drives the worm wheel 71 to rotate. The worm wheel 71 drives the moving rod 31 to move on the crossbeam 11, thereby causing the first pushing component 2 and the second pushing component 13 to push the support beam 12 to move, so that the mounting holes on the support beam 12 correspond to the mounting holes on the crossbeam 11, making it easier for bolts to pass through the mounting holes on the crossbeam 11 and the mounting holes on the support beam 12, thus making adjustment more convenient. In addition, the overhead structure in this embodiment can also be applied to overhead railway lines, making it convenient to install frame bridges under the railway lines.

[0045] Secondly, this application also discloses a construction method for a continuous beam under suspension, including the following steps: S1: Place a crossbeam 11 on two support piers 1 on the same side of the continuous beam; S2: Install a support beam 12 below the continuous beam, so that the support beam 12 abuts against the bottom surface of the continuous beam and at the same time abuts against the upper surface of the crossbeam 11; S3: Place multiple support beams 12 on the crossbeam 11; S4: As needed, the support beam 12 is adjusted to push the corresponding fixing rod 51 into the fixing groove 6; S5: The first pushing component 2 or the second pushing component 13 drives the support beam 12 to move on the crossbeam 11; S6: The mounting holes on the support beam 12 and the crossbeam 11 correspond, and bolts are inserted into the mounting holes to fix the crossbeam 11 and the support beam 12.

[0046] The implementation principle of the construction method for a continuous beam under suspension according to an embodiment of this application is as follows: When suspending the continuous beam, firstly, support piers 1 are pre-embedded on both sides of the continuous beam, so that two support piers 1 are set on each side. A crossbeam 11 is placed on the two support piers 1 on the same side. Then, a hole is drilled under the continuous beam so that the support beam 12 is set along the width direction of the continuous beam. At the same time, the upper surface of the support beam 12 abuts against the bottom surface of the continuous beam, and the lower surface of the support beam 12 abuts against the upper surface of the crossbeam 11. The crossbeam 11 supports the support beam 12, and the support beam 12 supports the continuous beam, which facilitates the installation of the frame bridge by drilling a hole under the continuous beam.

[0047] After multiple support beams 12 are installed, if the mounting holes on the support beams 12 and the mounting holes on the crossbeams 11 do not correspond, the fixing rod 51 moves into the fixing groove 6, and the moving rod 31 moves. The position of the support beams 12 can be adjusted by the first pushing component 2 and the second pushing component 13 to make the mounting holes on the support beams 12 correspond to the mounting holes on the crossbeams 11, thus facilitating the insertion of bolts. When the support beams 12 are fixed to the crossbeams 11 with bolts, construction is carried out below the support beams 12, and then the frame bridge is installed below the continuous beam. In addition, the overhead method in this embodiment can also be applied to overhead railway lines, facilitating the installation of frame bridges below railway lines.

[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A continuous beam overhead structure, characterized in that: The system includes two crossbeams (11) on opposite sides of a continuous beam. A support beam (12) is provided on the crossbeam (11). The support beam (12) is located below the continuous beam and abuts against the continuous beam. The bottom surface of the support beam (12) abuts against the two crossbeams (11). A first pushing component (2) for pushing the support beam (12) to move along the length of the crossbeam (11) is provided on the crossbeam (11). The first pushing component (2) includes a first rotating shaft (21) rotating on the crossbeam (11) and a first pushing plate (22) fixed on the first rotating shaft (21). The first pushing plate (22) is used to push the support beam (12) to move on the crossbeam (11). Multiple support beams (12) are provided, and the multiple support beams (12) are spaced apart along the length direction of the crossbeam (11). Multiple first pushing components (2) are also provided, and the multiple first pushing components (2) correspond one-to-one with the multiple support beams (12). The multiple first pushing components (2) are used to push the multiple support beams (12) to move. A linkage component (3) is provided on the crossbeam (11). The linkage component (3) is used for the multiple first pushing plates (22) to push the multiple support beams (12) to move simultaneously. The linkage component (3) includes a movable rod (31) that slides on the crossbeam (11) and a plurality of telescopic rods (32) that are hinged to the movable rod (31). The movable rod (31) is arranged along the length direction of the crossbeam (11) and one end extends out of the crossbeam (11). The end of the telescopic rod (32) away from the movable rod (31) is fixedly installed on the first rotating shaft (21). The plurality of telescopic rods (32) and the plurality of first pushing components (2) correspond one-to-one. Multiple connecting blocks (4) are slidably connected to the movable rod (31), and the connecting blocks (4) are slidably connected to the crossbeam (11). The multiple connecting blocks (4) and the multiple telescopic rods (32) correspond one-to-one. The end of the telescopic rod (32) away from the first rotating shaft (21) is hinged to the connecting block (4). The crossbeam (11) is provided with a fixing member (5) for fixing the connecting block (4) to the movable rod (31). The fixing member (5) is configured as a fixing rod (51) that slides on the connecting block (4). The end of the fixing rod (51) away from the connecting block (4) extends out of the crossbeam (11). The moving rod (31) has a fixing groove (6). When the fixing rod (51) moves into the fixing groove (6), the connecting block (4) is fixed on the moving rod (31). The crossbeam (11) has a clearance groove (61) for the fixing rod (51) to slide. The fixed rod (51) is fixedly installed with a limiting rod (41) at one end extending out of the crossbeam (11), and the limiting rod (41) is used to abut against the side of the crossbeam (11); The fixing rod (51) is fitted with a locking spring (62). One end of the locking spring (62) is set on the connecting block (4), and the other end is fixedly installed on the limiting rod (41). The locking spring (62) is used to pull the fixing rod (51) to move into the fixing groove (6). The crossbeam (11) is also provided with a second pushing component (13), which is used to push the support beam (12) to move in the opposite direction to the direction in which the first pushing component (2) pushes the support beam (12) to move on the crossbeam (11).

2. The continuous beam overhead structure according to claim 1, characterized in that: The moving rod (31) is provided with a drive assembly (7), which includes a worm gear (71) rotatably connected to the crossbeam (11) and a worm (72) meshing with the worm gear (71). The worm (72) is rotatably connected to the crossbeam (11), and the moving rod (31) passes through the worm (72) and is threadedly connected to the worm (72).

3. A construction method for a continuous beam under suspension, characterized in that: The continuous beam overhead structure described in claim 1 comprises the following steps: S1: Place a crossbeam (11) on two support piers (1) on the same side of the continuous beam. S2: A support beam (12) is provided below the continuous beam so that the support beam (12) abuts against the bottom surface of the continuous beam and at the same time abuts against the crossbeam (11); S3: Place multiple support beams (12) on the crossbeam (11); S4: Push the corresponding fixing rod (51) into the fixing groove (6) by adjusting the support beam (12) as needed; S5: The first push assembly (2) or the second push assembly (13) drives the support beam (12) to move on the crossbeam (11); S6: The mounting holes on the support beam (12) and the crossbeam (11) correspond to each other. Bolts are inserted into the mounting holes to fix the crossbeam (11) and the support beam (12).

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