A multi-span continuous beam composite support

Abstract

This application discloses a multi-span continuous beam composite support system, belonging to the field of bridge construction technology. The key technical features include a first support structure, a second support structure, and a connecting mechanism. The first support structure is connected to the ground, and the second support structure is located above the first support structure and connected to the continuous beam. The first support structure includes a first support pipe, and the second support structure includes a second support pipe corresponding to the first support pipe. The connecting mechanism is located between the first and second support pipes and includes a connecting device. The connecting device includes an upper connecting plate, a lower connecting plate, and connecting reinforcing bars. The upper connecting plate is connected to the first support pipe, the lower connecting plate is connected to the second support pipe, and the connecting reinforcing bars are connected to both the upper and lower connecting plates, thereby reducing construction costs.

Description

Technical Field

[0001] This application relates to the field of bridge construction technology, and in particular to a composite support for multi-span continuous beams. Background Technology

[0002] Currently, continuous beams refer to beam bridges with two or more continuous spans. With increasingly stringent requirements for navigation and aesthetics, the spans of continuous beam bridges are constantly increasing. As the span increases, the construction difficulty also increases rapidly. In the construction of continuous bridges with large spans, it is necessary to use appropriate supports to temporarily support the bridge structure on both sides of the piers. Traditional supports are composed of many steel pipes bound together.

[0003] The traditional supports mentioned above are complex to install, and they need to be dismantled after each section of the bridge is completed, which increases construction costs. Summary of the Invention

[0004] To reduce construction costs, this invention provides a multi-span continuous beam composite support.

[0005] The present invention provides a multi-span continuous beam composite support system with the following technical solution:

[0006] A multi-span continuous beam composite support includes a first support structure, a second support structure, and a connecting mechanism for connecting the first support structure and the second support structure. The first support structure is connected to the ground, and the second support structure is located above the first support structure and connected to the continuous beam. The first support structure includes a first support pipe, and the second support structure includes a second support pipe corresponding to the first support pipe. The connecting mechanism is located between the first support pipe and the second support pipe. The connecting mechanism includes a connecting device, which includes an upper connecting plate, a lower connecting plate, and connecting reinforcing bars. The upper connecting plate is connected to the first support pipe, the lower connecting plate is connected to the second support pipe, and the connecting reinforcing bars are connected to both the upper and lower connecting plates.

[0007] By adopting the above technical solution, when a continuous beam needs to be supported by a scaffold, the first support structure is first placed in a suitable position, and then the second support structure is erected on top of the first support structure, with the bottom of the second support pipe directly opposite the top of the first support pipe. Workers then fix the upper connecting plate to the bottom of the second support pipe and the lower connecting plate to the top of the first support pipe. Finally, connecting steel bars are used to fix the positions of the upper and lower connecting plates, allowing the first support pipe to support the second support pipe. This achieves the installation of a combined scaffold, which is simple to install. After a section of the bridge is completed, only the connecting steel bars need to be removed to dismantle the combined scaffold. Disassembly of the combined scaffold is also convenient, reducing construction costs. The first support structure can then be moved to the next suitable position, and the above operation repeated. The first and second support structures can be reused, further reducing construction costs.

[0008] Preferably, the connecting mechanism further includes a support device, which is disposed between the upper connecting plate and the lower connecting plate and is connected to both the upper connecting plate and the lower connecting plate. The support device includes a sand cylinder, the bottom end of which is connected to the lower connecting plate and the top end of which is connected to the upper connecting plate.

[0009] By adopting the above technical solution, during the construction of each bridge section, due to the inconsistent height of the bridge above the ground, a support device is installed to adjust the distance between the second and first support structures. Fine sand is filled between sand cylinders, which are placed between the upper and lower connecting plates. Different types of sand cylinders can be used to adjust the distance between the second and first support structures, thereby adjusting the height of the second support structure to adapt to the bridge height. This method not only allows for adjustment of the distance between the second and first support structures but also facilitates easy assembly and disassembly, reducing construction costs.

[0010] Preferably, the support device further includes a support hydraulic cylinder, a plurality of which are arranged along the circumference of the sand cylinder, the support hydraulic cylinder is fixedly connected to the lower connecting plate, and the drive shaft of the support hydraulic cylinder abuts against the upper connecting plate.

[0011] By adopting the above technical solution, the hydraulic cylinder further supports the second support pipe, thereby supporting the second support structure. The hydraulic cylinder distributes the force on the sand cylinder, making the second support structure more stable.

[0012] Preferably, multiple connecting reinforcing bars are arranged circumferentially along the first support pipe, and a locking block is connected to the top of the connecting reinforcing bars. The connecting mechanism further includes a fixing device for fixing the connecting reinforcing bars. The fixing device includes a fixing sleeve, an adjusting sleeve, and at least two fixing blocks. The fixing sleeve is sleeved on the connecting reinforcing bars and connected to the connecting reinforcing bars. The adjusting sleeve is sleeved on the fixing sleeve and threadedly connected to the fixing sleeve.

[0013] The lower connecting plate has a mounting hole, the diameter of which gradually decreases from one end near the upper connecting plate to the other end. The thickness of the fixing block gradually decreases from one end near the upper connecting plate to the other end. The side wall of the fixing block near the lower connecting plate matches the side wall of the mounting hole. The fixing block is disposed in the mounting hole and is slidably connected to the lower connecting plate. At least two fixing blocks are arranged circumferentially along the connecting steel bar. The adjusting sleeve extends into the mounting hole and abuts against the top of the fixing block.

[0014] By adopting the above technical solution, the connecting steel bar is passed through the through hole, and the fixing sleeve is fixedly connected to the connecting steel bar. Then, the adjusting sleeve is threaded onto the fixing sleeve. The connecting steel bar is aligned with the mounting hole and inserted into the mounting hole. The connecting steel bar drives the adjusting sleeve into the mounting hole. As the connecting steel bar continues to move downwards, the adjusting sleeve abuts against the fixing block, causing the fixing block to move downwards as well. Because the diameter of the mounting hole near the upper connecting plate is larger than that at the other end, as the fixing block moves away from the upper connecting plate, at least two fixing blocks move closer to each other until the locking block abuts against the upper connecting plate, and the fixing block just secures the connecting steel bar. When the distance between the upper and lower connecting plates is different, the adjusting sleeve can be set with various specifications of different lengths to facilitate the adjusting sleeve extending into the mounting hole and abutting against the fixing block, thus facilitating the fixation of the connecting steel bar.

[0015] Preferably, the fixing block is fixedly connected to a slider, and the lower connecting plate has a sliding groove for the slider to slide through. The sliding groove communicates with the mounting hole. The lower connecting plate has a movable cavity communicating with the sliding groove. The movable cavity is provided with a limiting device to restrict the position of the adjusting sleeve. The limiting device includes a rod and a synchronization component that drives the rod to move. The adjusting sleeve has a hole for the rod to be inserted. The rod is inserted into the hole to limit the position of the adjusting sleeve.

[0016] By adopting the above technical solution, the fixed block drives the slider to slide within the groove, while the groove simultaneously limits the movement of the fixed block. When the slider moves, it drives the synchronous component to move, which in turn drives the insertion rod to insert into the insertion hole, restricting the position of the adjusting sleeve and preventing the adjusting sleeve from detaching from the fixed block when fixing the connecting steel bars.

[0017] Preferably, the synchronization component includes a synchronization rod, a synchronization block, and a connecting rod. One end of the synchronization rod is connected to the side wall of the slider away from the fixed block. The synchronization block is slidably connected to the lower connecting plate. The other end of the synchronization rod is slidably connected to the synchronization block. One end of the connecting rod is connected to the synchronization block, and the other end is fixedly connected to the insertion rod.

[0018] By adopting the above technical solution, when the slider moves, the slider drives the synchronizing rod to move in the vertical direction. At the same time, the slider will drive the synchronizing rod to move closer to the connecting steel bar. Therefore, the synchronizing rod will drive the synchronizing block to move closer to the connecting steel bar. The synchronizing block will drive the connecting rod to move closer to the connecting steel bar. The connecting rod will drive the insert rod to move closer to the connecting steel bar. When the locking block abuts against the upper connecting plate, the insert rod is inserted into the insertion hole.

[0019] Preferably, the first support structure further includes a base and pipe piles. The base is set on the ground, and the pipe piles extend into the ground and are connected to the bottom of the base. Multiple first support pipes are vertically arranged, and multiple first support pipes are fixedly connected to the base.

[0020] By adopting the above technical solution, when using the first support structure, the pipe pile is first inserted vertically into the ground to keep the base horizontal. When the second support structure is placed on the first support pipe, the horizontally set base makes the support more stable.

[0021] Preferably, the first support structure further includes a leveling hydraulic cylinder, which is fixedly connected to the top of the base, and the drive shaft of the leveling hydraulic cylinder passes through the base and abuts against the ground.

[0022] By adopting the above technical solution, when the ground is uneven, the leveling hydraulic cylinder extends and supports the more concave part of the ground, so that the base remains level.

[0023] Preferably, a plurality of first reinforcing frames are provided between each pair of adjacent first supporting pipes, and the two sides of the first reinforcing frame are respectively provided corresponding to the two adjacent first supporting pipes, and the first reinforcing frame is fixedly connected to the first supporting pipe.

[0024] By adopting the above technical solution, the first reinforcement frame increases the supporting force between the first support pipes. When one of the first support pipes is unbalanced in terms of force, the other first support pipes also share part of the force through the first reinforcement frame, thereby increasing the service life of the first support pipes and reducing construction costs.

[0025] Preferably, the second support structure includes a connecting frame, a Bailey bridge, an I-beam, a distribution beam, and a support frame. The connecting frame is connected to multiple second support pipes. Multiple Bailey bridges are arranged in parallel and fixedly connected to the top of the connecting frame. Multiple I-beams are arranged in parallel along a length direction perpendicular to the Bailey bridge and fixedly connected to the top of the Bailey bridge. Multiple distribution beams are arranged in parallel along a length direction perpendicular to the I-beam and fixedly connected to the I-beam. At least two support frames are provided, and at least two support frames are respectively located below the flanges on both sides of the box girder. The support frames are fixedly connected to the distribution beams and connected to the box girder.

[0026] By adopting the above technical solution, the connecting frame, Bailey bridge, I-beam, distribution beam and support frame rely on and support each other, and the multiple second support pipes are subjected to uniform force, which in turn makes the service life of the second support structure longer and reduces construction costs.

[0027] In summary, the present invention has the following beneficial effects:

[0028] 1. When a continuous beam needs to be supported by a bracket, first place the first support structure in a suitable position, then erect the second support structure on top of the first support structure, so that the bottom of the second support pipe is directly opposite the top of the first support pipe. Fix the upper connecting plate to the bottom end of the second support pipe and fix the lower connecting plate to the top end of the first support pipe. Then use connecting steel bars to fix the positions of the upper and lower connecting plates. This realizes the installation of the combined bracket, which is easy to install and reduces construction costs.

[0029] 2. The installation and fixing of the connecting steel bars is also very convenient. Simply select a suitable adjusting sleeve and install it on the fixing sleeve, then insert the connecting steel bar directly into the mounting hole. As the connecting steel bar extends into the mounting hole, the adjusting sleeve also enters the mounting hole, and the adjusting sleeve will abut against the fixing block. The connecting steel bar continues to move downward until the locking block abuts against the upper connecting plate, and the fixing block abuts against the connecting steel bar, fixing the connecting steel bar. The movement of the fixing block drives the slider to move, the slider drives the synchronous rod to move, the synchronous rod drives the synchronous block to move, and the synchronous block drives the connecting rod to move. When the connecting rod drives the insertion rod to move, the insertion rod inserts into the insertion hole, thus fixing the adjusting sleeve and reducing the possibility of the adjusting sleeve and the fixing block separating. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of a multi-span continuous beam composite support.

[0031] Figure 2 This is a schematic diagram of the overall structure of the first supporting structure.

[0032] Figure 3 This is a schematic diagram of the overall structure of the second support structure.

[0033] Figure 4 This is a schematic diagram of the explosion of the sand cylinder and the upper connecting plate.

[0034] Figure 5 It is a sectional view of the connection between the reinforcing bars and the lower connecting plate.

[0035] Figure 6 This is a partial sectional view of the lower connecting plate.

[0036] Figure 7 yes Figure 5 A schematic diagram of part A in the middle.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. First support structure; 11. Base; 12. Pipe pile; 13. Leveling hydraulic cylinder; 14. First support pipe; 141. First reinforcing frame; 2. Second support structure; 21. Second support pipe; 211. Second reinforcing frame; 22. Connecting frame; 23. Bailey bridge; 24. I-beam; 25. Distribution beam; 26. Support frame; 3. Connecting device; 31. Upper connecting plate; 311. Through hole; 32. Lower connecting plate; 321 1. Mounting hole; 322. Slide groove; 323. Movable cavity; 33. Connecting steel bar; 331. Locking block; 4. Support device; 41. Sand cylinder; 42. Support hydraulic cylinder; 5. Fixing device; 51. Fixing sleeve; 52. Adjusting sleeve; 521. Insertion hole; 53. Fixing block; 6. Sliding block; 7. Inserting rod; 8. Synchronization assembly; 81. Synchronization rod; 82. Synchronization block; 821. Sliding groove; 83. Connecting rod; 9. Sliding block. Detailed Implementation

[0039] The present invention will be further described in detail below with reference to the accompanying drawings.

[0040] A multi-span continuous beam composite support, referring to Figure 1 The system includes a first support structure 1, a second support structure 2, and a connecting mechanism. The first support structure 1 is connected to the ground, and the second support structure 2 is connected to the bridge. The second support structure 2 is located above the first support structure 1. The first support structure 1 is used to support the second support structure 2. The connecting mechanism is connected to both the first support structure 1 and the second support structure 2. After a section of the bridge is completed, the connecting mechanism only needs to be removed to separate the first support structure 1 and the second support structure 2. Then, the first support structure 1 and the second support structure 2 are moved to a suitable position, and the connecting mechanism is used again to connect and fix the first support structure 1 and the second support structure 2. The disassembly and assembly are very convenient, reducing construction costs.

[0041] Reference Figure 2 The first support structure 1 includes a base 11, pipe piles 12, leveling hydraulic cylinders 13, and a first support pipe 14. Four pipe piles 12 are vertically arranged and evenly distributed at the bottom of the base 11, and the pipe piles 12 are fixedly connected to the base 11 and extend into the ground. Multiple leveling hydraulic cylinders 13 are vertically arranged and fixedly connected to the top of the base 11. The drive shaft of the leveling hydraulic cylinder 13 passes through the base 11 and abuts against the ground, and the leveling hydraulic cylinder 13 is located around the pipe piles 12.

[0042] When using the first support structure 1, the pipe pile 12 is first vertically inserted into the ground to keep the base 11 horizontal. When the ground is uneven, the leveling hydraulic cylinder 13 extends and supports the more concave part of the ground to keep the base 11 horizontal.

[0043] Reference Figure 2 Four first support tubes 14 are vertically arranged, in pairs, with the two pairs of first support tubes 14 parallel to the length of the base 11. The bottom end of each first support tube 14 is fixedly connected to the top end of the base 11. A first reinforcing frame 141 is provided between two first support tubes 14 in the same group. Multiple first reinforcing frames 141 are equally spaced along the length of the first support tube 14, with each side of the first reinforcing frame 14 corresponding to two adjacent first support tubes 14. The first reinforcing frame 141 is fixedly connected to the first support tube 14.

[0044] The first reinforcement frame 141 increases the supporting force between the first support pipes 14, making the four first support pipes 14 bear the force evenly, increasing the service life of the first support pipes 14, and reducing construction costs.

[0045] Reference Figure 1 The second support structure 2 includes second support pipes 21, connecting frames 22, Bailey bridges 23, I-beams 24, distribution beams 25, and support frames 26. Four second support pipes 21 are vertically arranged, each corresponding to a first support pipe 14. The axes of the first and second support pipes 14 coincide, and the second support pipes 21 are located above the first support pipes 14. The connecting frames 22 are fixedly connected to the tops of all four second support pipes 21. Multiple Bailey bridges 23 are horizontally and parallelly arranged, and their bottoms are fixedly connected to the connecting frames 22.

[0046] Reference Figure 3 Multiple I-beams 24 are arranged horizontally and parallel to each other. The length direction of the I-beams 24 is perpendicular to the length direction of the Bailey bridge 23, and the bottom of the I-beams 24 is fixedly connected to the top of the Bailey bridge 23. Multiple distribution beams 25 are arranged horizontally and parallel to each other. The length direction of the distribution beams 25 is perpendicular to the length direction of the I-beams 24 and also perpendicular to the length direction of the bridge. The bottom of the distribution beams 25 is fixedly connected to the top of the I-beams 24. Two support frames 26 are provided. The two support frames 26 are respectively located below the flanges on both sides of the box girder. The bottom of the support frames 26 is fixedly connected to the distribution beams 25, and the top of the support frames 26 and the side of the two support frames 26 that are close to each other are fixedly connected to the box girder.

[0047] The connecting frame 22, Bailey bridge 23, I-beam 24, distribution beam 25 and support frame 26 rely on and support each other, and the stress is evenly distributed, which makes the service life of the second support structure 2 longer and reduces the construction cost.

[0048] Reference Figure 1A connecting mechanism is provided between each first support pipe 14 and second support pipe 21. The connecting mechanism includes a connecting device 3, a supporting device 4 and a fixing device 5. The connecting device 3 includes an upper connecting plate 31, a lower connecting plate 32 and a connecting steel bar 33. The upper connecting plate 31 is fixedly connected to the bottom end of the second support pipe 21, and the lower connecting plate 32 is fixedly connected to the top end of the first support pipe 14.

[0049] Reference Figure 4 The upper connecting plate 31 has multiple through holes 311 arranged at equal intervals around the second support pipe 21. The lower connecting plate 32 has multiple mounting holes 321 arranged around the first support pipe 14, with the mounting holes 321 corresponding to the through holes 311. The connecting steel bar 33 passes through the through holes 311 and the mounting holes 321, and a locking block 331 is fixedly connected to the top of the connecting steel bar 33. The cross-sectional area of ​​the locking block 331 is larger than that of the through hole 311. The through holes 311 and the mounting holes 321 cooperate with each other to facilitate the fixing of the connecting steel bar 33 to the upper connecting plate 31 and the lower connecting plate 32.

[0050] Reference Figure 4 The support device 4 is disposed between the upper connecting plate 31 and the lower connecting plate 32. The support device 4 includes a sand cylinder 41 and a support hydraulic cylinder 42. The top of the sand cylinder 41 is connected to the upper connecting plate 31 and the bottom is connected to the lower connecting plate 32. The sand cylinder 41 is filled with sand, and the axis of the sand cylinder 41 coincides with the axis of the first support pipe 14. Multiple support hydraulic cylinders 42 are arranged around the circumference of the sand cylinder 41. The support hydraulic cylinders 42 are disposed between the connecting steel bar 33 and the sand cylinder 41. The support hydraulic cylinders 42 are fixedly connected to the lower connecting plate 32 and abut against the upper connecting plate 31.

[0051] During the construction of each section of the bridge, due to the inconsistent height of the bridge above the ground, fine sand is filled between the sand cylinders 41. The sand cylinders 41 are placed between the upper connecting plate 31 and the lower connecting plate 32. Different types of sand cylinders 41 can be used to adjust the distance between the second support pipe 21 and the first support pipe 14, thereby adjusting the overall height of the second support structure 2 to adapt to the bridge height.

[0052] Reference Figure 5 and Figure 6 The fixing device 5 includes a fixing sleeve 51, an adjusting sleeve 52, and a fixing block 53. The fixing sleeve 51 is fitted onto the connecting steel bar 33 and is fixedly connected to the connecting steel bar 33. The adjusting sleeve 52 is fitted onto the fixing sleeve 51 and is threadedly connected to the fixing sleeve 51. The adjusting sleeve 52 has an insertion hole 521. Two fixing blocks 53 are symmetrically arranged. The longitudinal section of the fixing block 53 is triangular, and the thickness of the fixing block 53 gradually decreases from one end near the upper connecting plate 31 to the other end. The diameter of the mounting hole 321 gradually decreases from one end near the upper connecting plate 31 to the other end.

[0053] Reference Figure 5 and Figure 6The fixing block 53 is set in the mounting hole 321. Slider blocks 6 are fixedly connected to the sidewalls of the two fixing blocks 53 that are far apart from each other. A sliding groove 322 is provided on the lower connecting plate 32, which matches the slider 6 and communicates with the mounting hole 321. The slider 6 extends into the sliding groove 322 and slides in connection with the lower connecting plate 32. The bottom of the fixing sleeve 51 abuts against the top of the fixing block 53.

[0054] The connecting steel bar 33 extends into the mounting hole 321, and the adjusting sleeve 52 also enters the mounting hole 321. The adjusting sleeve 52 will abut against the fixing block 53. The connecting steel bar 33 continues to move downward until the locking block 331 abuts against the upper connecting plate 31, and the fixing block 53 abuts against the connecting steel bar 33, thus fixing the connecting steel bar 33.

[0055] Reference Figure 5 and Figure 7 The lower connecting plate 32 has a movable cavity 323, which contains a limiting device. The limiting device includes a plug rod 7 and a synchronization assembly 8. The synchronization assembly 8 includes a synchronization rod 81, a synchronization block 82, and a connecting rod 83. One end of the synchronization rod 81 is fixedly connected to the side wall of the slider 6 away from the fixed block 53, and the other end is fixedly connected to a sliding block 9. The synchronization block 82 has a sliding groove 821 on its side wall near the synchronization rod 81. The sliding groove 821 matches the sliding block 9, which is located within the sliding groove 821 and slidably connected to the synchronization block 82. The connecting rod 83 is vertically positioned, with one end fixedly connected to the synchronization block 82 and the other end fixedly connected to the plug rod 7. The plug rod 7 is horizontally positioned, with one end matching the insertion hole 521.

[0056] While the fixed block 53 moves, it drives the slider 6 to move. The slider 6 drives the synchronizing rod 81 to move. The synchronizing rod 81 drives the synchronizing block 82 to move. The connecting rod 83 driven by the synchronizing block 82 moves. When the connecting rod 83 drives the insertion rod 7 to move, the insertion rod 7 is inserted into the insertion hole 521, thereby fixing the adjusting sleeve 52 and reducing the possibility of the adjusting sleeve 52 detaching from the fixed block 53.

[0057] The operating principle of this application is as follows: When a continuous beam requires support, the pipe pile 12 is first vertically inserted into the ground to keep the base 11 horizontal. If the ground is uneven, the leveling hydraulic cylinder 13 extends to support the concave part of the ground, keeping the base 11 horizontal and the first support pipe 14 vertical. Then, the second support structure 2 is erected above the first support structure 1, with the bottom of the second support pipe 21 facing the top of the first support pipe 14. Based on the height between the bridge and the ground, a suitable sand cylinder 41 is selected, and the support hydraulic cylinder 42 is activated to place the second support structure 2 on the sand cylinder 41.

[0058] Fix the upper connecting plate 31 to the bottom end of the second support pipe 21, and fix the lower connecting plate 32 to the top end of the first support pipe 14, so that the mounting hole 321 corresponds to the through hole 311 one by one. First, insert multiple connecting steel bars 33 directly into the through hole 311, fix the fixing sleeve 51 to the connecting steel bars 33, and then select a suitable adjusting sleeve 52 to install on the fixing sleeve 51. Insert the bottom end of the connecting steel bar 33 into the mounting hole 321. The adjusting sleeve 52 also enters the mounting hole 321. The connecting steel bar 33 continues to move downward. The adjusting sleeve 52 abuts against the fixing block 53. The connecting steel bar 33 drives the adjusting sleeve 52 to move downward. The adjusting sleeve 52 drives the fixing block 53 to slide downward. The fixing block 53 drives the slider 6 to move. The slider 6 drives the synchronizing rod 81 to move closer to the connecting steel bar 33. The synchronizing rod 81 drives the synchronizing block 82 to move closer to the connecting steel bar 33. The synchronizing block 82 drives the connecting rod 83 to move closer to the connecting steel bar 33. The connecting rod 83 drives the insert rod 7 to move closer to the connecting steel bar 33. When the fixing block 53 just fixes the connecting steel bar 33, the locking block 331 just abuts against the top of the upper connecting plate 31. At the same time, the insert rod 7 is just inserted into the insertion hole 521.

[0059] The connection and fixation of the first support structure 1 and the second support structure 2 by the connecting steel bar 33 is very convenient, and the operation of fixing the connecting steel bar 33 is also very simple, reducing construction costs.

[0060] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A multi-span continuous beam composite support, characterized by: The utility model relates to a connecting mechanism for connecting first support structure (1) and second support structure (2), first support structure (1) is connected with ground, second support structure (2) is located above first support structure (1), and second support structure (2) is connected with continuous beam, first support structure (1) includes first support pipe (14), and second support structure (2) includes the second support pipe (21) corresponding with first support pipe (14) arrangement, and the connecting mechanism is located between first support pipe (14) and second support pipe (21), and the connecting mechanism includes connecting device (3), and connecting device (3) includes upper connecting plate (31), lower connecting plate (32) and connecting reinforcing steel bar (33), upper connecting plate (31) is connected with first support pipe (14), lower connecting plate (32) is connected with second support pipe (21), and connecting reinforcing steel bar (33) is connected with upper connecting plate (31) and lower connecting plate (32) all; Connecting reinforcing steel bar (33) is provided with a plurality of along the circumference of first support pipe (14), and the top of connecting reinforcing steel bar (33) is connected with clamping block (331), and the connecting mechanism further includes fixing device (5) for fixing connecting reinforcing steel bar (33), and fixing device (5) includes fixing sleeve (51), adjusting sleeve (52) and at least two fixing blocks (53), fixing sleeve (51) is sleeved on connecting reinforcing steel bar (33) and is connected with connecting reinforcing steel bar (33), adjusting sleeve (52) is sleeved on fixing sleeve (51) and is threadedly connected with fixing sleeve (51); Lower connecting plate (32) is provided with mounting hole (321), and the diameter of mounting hole (321) gradually decreases from one end close to upper connecting plate (31) to the other end, the thickness of fixing block (53) gradually decreases from one end close to upper connecting plate (31) to the other end, the side wall of fixing block (53) close to lower connecting plate (32) is matched with the side wall of mounting hole (321), fixing block (53) is arranged in mounting hole (321) and is slidably connected with lower connecting plate (32), at least two fixing blocks (53) are arranged along the circumference of connecting reinforcing steel bar (33), and adjusting sleeve (52) extends into mounting hole (321) and abuts against the top of fixing block (53).

2. The multi-span continuous beam composite support according to claim 1, wherein: The connecting mechanism further includes support device (4), and support device (4) is arranged between upper connecting plate (31) and lower connecting plate (32) and is connected with upper connecting plate (31) and lower connecting plate (32), and support device (4) includes sand cylinder (41), and the bottom end of sand cylinder (41) is connected with lower connecting plate (32), and the top end is connected with upper connecting plate (31).

3. The multi-span continuous beam composite support of claim 2, wherein: The support device (4) further comprises a plurality of support hydraulic cylinders (42) arranged along the circumference of the sand cylinder (41), the support hydraulic cylinders (42) are fixedly connected with the lower connecting plate (32), and the driving shafts of the support hydraulic cylinders (42) abut against the upper connecting plate (31).

4. The multi-span continuous beam composite support of claim 1, wherein: The fixed block (53) is fixedly connected with a sliding block (6), the lower connecting plate (32) is provided with a sliding groove (322) for sliding connection of the sliding block (6), the sliding groove (322) is communicated with the mounting hole (321), the lower connecting plate (32) is provided with a movable cavity (323) communicated with the sliding groove (322), the movable cavity (323) is provided with a limiting device for limiting the position of the adjusting sleeve (52), the limiting device comprises a plug rod (7) and a synchronous assembly (8) for driving the plug rod (7) to move, the adjusting sleeve (52) is provided with a plug hole (521) for insertion of the plug rod (7), and the plug rod (7) is inserted into the plug hole (521) to limit the adjusting sleeve (52).

5. The multi-span continuous beam composite support of claim 4, wherein: The synchronous assembly (8) comprises a synchronous rod (81), a synchronous block (82) and a connecting rod (83), one end of the synchronous rod (81) is connected with the side wall of the sliding block (6) away from the fixed block (53), the synchronous block (82) is slidingly connected with the lower connecting plate (32), the other end of the synchronous rod (81) is slidingly connected with the synchronous block (82), and one end of the connecting rod (83) is connected with the synchronous block (82) and the other end is fixedly connected with the plug rod (7).

6. The multi-span continuous beam composite support of claim 1, wherein: The first support structure (1) further comprises a base (11) and a pipe pile (12), the base (11) is arranged on the ground, the pipe pile (12) extends into the ground and is connected with the bottom of the base (11), and a plurality of first support pipes (14) are vertically arranged, and the plurality of first support pipes (14) are fixedly connected with the base (11).

7. The multi-span continuous beam composite support of claim 6, wherein: The first support structure (1) further comprises a leveling hydraulic cylinder (13), the leveling hydraulic cylinder (13) is fixedly connected with the top of the base (11), and the driving shaft of the leveling hydraulic cylinder (13) penetrates the base (11) and abuts against the ground.

8. The multi-span continuous beam composite support of claim 7, wherein: A plurality of first reinforcing frames (141) are arranged between each adjacent two first support pipes (14), the two sides of the first reinforcing frame (141) are respectively arranged corresponding to the adjacent two first support pipes (14), and the first reinforcing frame (141) is fixedly connected with the first support pipe (14).

9. The multi-span continuous beam composite support of claim 1, wherein: The second support structure (2) comprises connecting frames (22), bailey frames (23), I-shaped steel (24), distribution beams (25) and support frames (26), the connecting frames (22) are connected with the plurality of second support pipes (21), the bailey frames (23) are provided in parallel with a plurality of bailey frames (23), the bailey frames (23) are fixedly connected with the top of the connecting frames (22), the I-shaped steel (24) is provided in parallel with a plurality of I-shaped steel (24) along the length direction perpendicular to the bailey frame (23), and the I-shaped steel (24) is fixedly connected with the top of the bailey frame (23), the distribution beam (25) is provided in parallel with a plurality of distribution beams (25) along the length direction perpendicular to the I-shaped steel (24), and the distribution beam (25) is fixedly connected with the I-shaped steel (24), the support frame (26) is provided with at least two support frames (26), and the at least two support frames (26) are arranged below the side wings of the box girder, the support frame (26) is fixedly connected with the distribution beam (25) and connected with the beam box.

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