A Bailey beam installation and dismantling device and its usage method for a 40m ultra-high steel pipe column combined support.

Abstract

This invention relates to the field of Bailey beam installation and dismantling equipment, and discloses a Bailey beam installation and dismantling device and its usage method for a 40m ultra-high steel pipe column combined support. The device includes: a traveling platform for placement on and movement along the transverse main beam; a lifting mechanism mounted on the traveling platform; a load-bearing beam detachably connected to the lifting mechanism for passing through the Bailey beam; and a gripping mechanism mounted on the load-bearing beam. This invention utilizes a liquid-driven pressure component in conjunction with ball bearings to achieve rapid locking and low-resistance movement of the gripping mechanism on the load-bearing beam, balancing flexible adjustment and stable locking. The pressure shell and ball bearings provide heat dissipation, extending service life. The traveling platform and limit wheels work together to safely dismantle the device in the confined space under the beam, eliminating the need for cranes or pre-embedded lifting points. The device itself acts as a working platform, reducing the risk of falls from heights. The driving component enables automatic movement and positioning, and the contact block adheres tightly to the groove of the Bailey beam, ensuring reliable gripping and strong versatility.

Description

Technical Field

[0001] This invention relates to the field of Bailey beam installation and dismantling equipment, and more specifically, to a Bailey beam installation and dismantling device and its usage method for a 40m ultra-high steel pipe column combined support. Background Technology

[0002] In ultra-high and long-span bridge projects, the combined system of steel pipe columns, Bailey beams and disc-lock scaffolding faces the following challenges during the installation and dismantling of Bailey beams: After hoisting the main crossbeam of the upper scaffolding, due to the impact of foundation settlement and cumulative errors in manufacturing and installation, the limited space makes it difficult for manual operation to slide in smoothly, and positioning is difficult. During dismantling, the space under the beam is narrow, and the crane boom cannot be extended. When relying on pre-embedded lifting points or chain hoists for traction, the lateral movement angle and direction are difficult to control, which can easily lead to collisions with the beam or scaffolding, resulting in low efficiency and the risk of structural damage. At the same time, there is a lack of safe operating platforms during the installation and dismantling process, the temporary scaffolding is costly and has poor stability, and the safety net cannot provide a stable working surface.

[0003] Existing technologies cannot simultaneously solve the problems of positioning accuracy, demolition in confined spaces, and safety assurance for high-altitude operations. Summary of the Invention

[0004] This invention provides a Bailey beam installation and dismantling device and method for a 40m ultra-high steel pipe column combined support, solving the technical problems of installation and dismantling in confined spaces and the dangers of high-altitude operations in related technologies.

[0005] This invention provides a Bailey beam installation and dismantling device for a 40m ultra-high steel pipe column combined support, comprising: A traveling platform is used to be placed on the transverse main beam and can move along the transverse main beam; The lifting mechanism is installed on the walking platform; A load-bearing beam, detachably connected to the lifting mechanism, is used to pass through the Bailey beam; The gripping mechanism is mounted on the load-bearing beam and can move along the length of the load-bearing beam and be detachably connected to the side of the Bailey beam. The gripping mechanism includes a sliding frame housing, a driver, a pressing plate, and a pressing member. The sliding frame housing is slidably sleeved on the outer periphery of the load-bearing beam, the pressing plate is slidably disposed inside the sliding frame housing, the driver is installed in the sliding frame housing and its output end is connected to the pressing plate, the sliding frame housing is filled with liquid, the pressing member is connected to the sliding frame housing, and the driver drives the pressing plate to compress the liquid so that the pressing member presses against the load-bearing beam.

[0006] As a further optimization of the present invention, the pressure member includes a sleeve, a spring, a moving rod, and a pressure shell. One end of the sleeve is fixedly connected to the sliding frame shell, the spring is located inside the sleeve, one end of the moving rod slides into the sleeve and is elastically connected to the sleeve through the spring, and the other end of the moving rod is connected to the pressure shell. When the liquid enters the sleeve, the pressure shell moves toward the load-bearing beam and presses against the load-bearing beam.

[0007] As a further optimization of the present invention, the gripping mechanism also includes a rolling element, which includes a connecting rod and a ball. One end of the connecting rod is connected to the inner wall of the sliding frame shell, and the other end is rotatably connected to the ball. The ball rolls in contact with the outer periphery of the load-bearing beam.

[0008] As a further optimization of the present invention, the pressure shell is slidably sleeved on the outer periphery of the connecting rod, and when the pressure shell presses against the load-bearing beam, it contacts the ball bearings to dissipate heat.

[0009] As a further optimization of the present invention, the gripping mechanism also includes a contact element, which includes a power motor and a contact block. The power motor is installed on the side of the slide frame housing, and the contact block is connected to the output end of the power motor. The contact block is used to fit tightly with the groove at the bottom of the side of the Bailey beam.

[0010] As a further optimization of the present invention, the side of the walking platform is equipped with a limit wheel, which is rolledly connected to the side of the transverse main beam to limit the lateral movement of the walking platform.

[0011] As a further optimization of the present invention, the lifting mechanism includes a linear actuator, a connecting frame, and a plug shaft. The linear actuator is vertically mounted on the walking platform, the connecting frame is fixedly connected to the output end of the linear actuator, and the plug shaft slides through the connecting frame and the load-bearing beam for detachable connection between the load-bearing beam and the lifting mechanism.

[0012] As a further optimization of the present invention, it also includes a driving component, which includes a driving motor and a driving wheel. The driving motor is fixedly mounted on the sliding frame shell, and the driving wheel is fixedly connected to the driving shaft of the driving motor. The driving wheel makes rolling contact with the load-bearing beam to drive the sliding frame shell to move along the load-bearing beam.

[0013] As a further optimization of the present invention, the number of walking platforms is four, of which two walking platforms are placed on one transverse main beam and the other two walking platforms are placed on another transverse main beam, with the four walking platforms respectively supported at the four corners of the transverse main beam.

[0014] A method for installing and dismantling Bailey beams for a 40m ultra-high steel pipe column combined support system, using the aforementioned equipment for installing and dismantling Bailey beams for a 40m ultra-high steel pipe column combined support system, includes the following steps: The walking platform is placed on the transverse main beam of the steel pipe column composite support; The load-bearing beam is passed through the Bailey beam to be installed or dismantled, and the two ends of the load-bearing beam are connected to the walking platform through the lifting mechanism; Start the driver to drive the extrusion plate to compress the liquid in the slide frame housing, so that the pressure component presses against the load-bearing beam and locks the gripping mechanism onto the load-bearing beam. The gripping mechanism is connected to the side of the Bailey beam via contact elements; The Bailey beam is lifted by a lifting mechanism and moved along the transverse main beam by a traveling platform to complete the installation of the Bailey beam; The same principle applies to demolition work, but in reverse.

[0015] The beneficial effects of this invention are as follows: 1. This invention achieves the dual functions of rapid locking and smooth movement of the gripping mechanism on the load-bearing beam through the coordinated cooperation of the pressure component and the rolling component driven by the liquid medium. Specifically, the driver drives the extrusion plate to compress the liquid inside the sliding frame shell. The liquid enters the sleeve and pushes the pressure shell to press against the load-bearing beam, thus achieving reliable locking of the gripping mechanism on the load-bearing beam. When the position needs to be adjusted, the driver stops working, and the spring drives the pressure shell to automatically reset and disengage from the load-bearing beam. The gripping mechanism can slide freely along the load-bearing beam under the rolling support of the balls. This structure takes into account the requirements of low resistance during movement and high reliability during locking, and solves the technical problem that the positioning device in the prior art cannot simultaneously meet the requirements of flexible adjustment and stable locking.

[0016] 2. This invention effectively extends the service life of the rolling components through the contact heat dissipation design between the pressure shell and the rolling balls. During repeated reciprocating movements of the gripping mechanism, the continuous rolling friction between the rolling balls and the load-bearing beam generates heat. After prolonged use, the heat will reduce the strength and service life of the rolling balls. In this invention, the pressure shell directly contacts the rolling balls while pressing the load-bearing beam, using the pressure shell as a heat conduction medium to assist in heat dissipation and cooling of the rolling balls. There is no need to add an additional heat dissipation structure. The structure is compact and the effect is significant, improving the reliability of the equipment under continuous operation conditions.

[0017] 3. This invention achieves safe dismantling operations in the narrow space under the beam by using a traveling platform and limiting wheels, as well as a gripping method where the load-bearing beam passes through the Bailey beam. During dismantling, the traveling platform moves the load-bearing beam and gripping mechanism to directly under the Bailey beam. The lifting mechanism slightly lowers the Bailey beam to remove it from its original support position. Then, the traveling platform moves along the transverse main beam to move the Bailey beam laterally to the outside of the support system to complete the lowering. The entire process does not rely on pre-embedded lifting points or chain hoists, and does not require the crane boom to extend into the bottom of the beam to unfold. This fundamentally reduces the risk of the Bailey beam colliding with the beam or support during the lateral movement, while protecting the integrity of the beam concrete and the support structure.

[0018] 4. This invention uses a walking platform and a load-bearing beam as the working support, eliminating the need for temporary scaffolding or safety nets. The walking platform is supported on the transverse main beam and moves along it. The load-bearing beam passes through the Bailey beam and connects to the walking platform. The entire equipment structure itself serves as a stable working platform for the operators. When performing operations such as connecting the Bailey beam, adjusting the gripping mechanism, and locking the contact blocks, the workers always have a reliable standing surface and gripping support, eliminating the need to lean out or work in mid-air. This solves the problems of high cost and poor stability of temporary scaffolding in traditional processes, as well as the inability of safety nets to provide a stable working surface, significantly improving construction safety in ultra-high working environments of 40m.

[0019] 5. By adding a driving component, this invention enables the gripping mechanism to move automatically and be precisely positioned along the load-bearing beam. The drive motor drives the drive wheel to roll along the load-bearing beam. With the release and locking of the pressing component, the control logic of "releasing during movement and locking after positioning" can be realized, which improves the gripping mechanism's adaptability to Bailey beams of different widths, reduces the labor intensity of manual adjustment, and further improves the overall efficiency of installation and dismantling operations.

[0020] 6. This invention achieves reliable gripping of the Bailey beam by tightly engaging the contact block with the groove at the bottom of the side of the Bailey beam. The power motor drives the contact block to rotate to the position where it is tightly engaged with the groove. The connection is firm and easy to release. There is no need to add additional lifting points or connecting structures to the Bailey beam, and it does not affect the original structural integrity of the Bailey beam. It is suitable for the installation and dismantling of Bailey beams of various specifications and has good versatility. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram illustrating the application scenario of the Bailey beam installation and dismantling equipment for a 40m ultra-high steel pipe column combined support proposed in this invention.

[0022] Figure 2 This is a side view of the Bailey beam installation and dismantling equipment for a 40m ultra-high steel pipe column combined support proposed in this invention, illustrating its application scenario.

[0023] Figure 3 This is a schematic diagram of the overall structure of a Bailey beam installation and dismantling device for a 40m ultra-high steel pipe column combined support proposed in this invention.

[0024] Figure 4 This is a side view of the limiting wheel structure in a Bailey beam installation and dismantling device for a 40m ultra-high steel pipe column combined support proposed in this invention.

[0025] Figure 5 This is a cross-sectional schematic diagram of the gripping mechanism in a Bailey beam installation and dismantling device for a 40m ultra-high steel pipe column combined support proposed in this invention.

[0026] In the picture: 1. Walking platform; 2. Transverse main beam; 3. Limiting wheels; 4. Lifting mechanism; 41. Linear actuator; 42. Connecting frame; 43. Insert shaft; 5. Load-bearing beams; 6. Gripping mechanism; 61. Sliding frame housing; 62. Driver; 63. Extrusion plate; 64. Connecting rod; 65. Ball bearing; 66. Sleeve; 67. Spring; 68. Pressure shell; 69. Power motor; 610. Contact block; 611. Positioning shaft; 7. Bailey beam; 8. Driving components; 81. Drive motor; 82. Drive wheel. Detailed Implementation

[0027] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0028] Example 1 like Figures 1 to 5 As shown, this embodiment of the invention provides a Bailey beam installation and dismantling device for a 40m ultra-high steel pipe column combined support, including a walking platform 1 (which can be an electric platform vehicle), a lifting mechanism 4, a load-bearing beam 5, and a gripping mechanism 6; The walking platform 1 is placed on the transverse main beam 2 of the combined support and can move along the length of the transverse main beam 2. Preferably, in this embodiment, there are four walking platforms 1, with two walking platforms 1 placed on one transverse main beam 2 and the other two walking platforms 1 placed on another transverse main beam 2. The four walking platforms 1 are respectively supported at the four corners of the bottom surface of the transverse main beam 2 to ensure the stability of the overall structure. Each walking platform 1 is equipped with a limit wheel 3 on its side. The limit wheel 3 is rolledly connected to the side of the transverse main beam 2 to limit the walking platform 1 laterally and prevent it from shifting laterally during movement.

[0029] The lifting mechanism 4 is mounted on the traveling platform 1. Specifically, the lifting mechanism 4 includes a linear actuator 41, a connecting frame 42, and a shaft 43. The linear actuator 41 is a hydraulic cylinder or a pneumatic cylinder, and it is vertically mounted on the traveling platform 1. Its output end is located at the top and is fixedly connected to the connecting frame 42. The shaft 43 slides through the connecting frame 42 and the load-bearing beam 5 to achieve a detachable connection between the load-bearing beam 5 and the lifting mechanism 4. When it is necessary to install or remove the Bailey beam, the shaft 43 locks the load-bearing beam 5 onto the connecting frame 42 to ensure that the load-bearing beam 5 does not move axially during the lifting process.

[0030] The load-bearing beam 5 is detachably connected to the lifting mechanism 4 and is used to pass through the Bailey beam 7. Both ends of the load-bearing beam 5 are connected to the lifting mechanism 4 on two opposite walking platforms 1, so that the Bailey beam 7 can be lifted under the coordinated action of the four walking platforms 1.

[0031] The gripping mechanism 6 is mounted on the load-bearing beam 5 and can move along the length of the load-bearing beam 5. It is detachably connected to the side of the Bailey beam 7. Specifically, the gripping mechanism 6 includes a sliding frame housing 61, a driver 62, a pressing plate 63, a rolling element, a pressing element, and a contact element.

[0032] The sliding frame housing 61 is slidably fitted onto the outer periphery of the load-bearing beam 5, serving as the mounting base for the entire gripping mechanism. The compression plate 63 is slidably disposed inside the sliding frame housing 61. The driver 62 is mounted on the top of the sliding frame housing 61, and its output end is fixedly connected to the compression plate 63. The sliding frame housing 61 is filled with liquid (e.g., hydraulic oil), which flows to the pressing member under the compression of the compression plate 63. The pressing member is connected to the sliding frame housing 61. When the liquid enters the pressing member, the pressing member moves towards the load-bearing beam 5 and presses against the load-bearing beam 5, thereby locking the gripping mechanism 6 onto the load-bearing beam 5.

[0033] More specifically, the rolling element includes a connecting rod 64 and a ball bearing 65. One end of the connecting rod 64 is fixedly connected to the inner wall of the sliding frame housing 61, and the other end is rotatably connected to the ball bearing 65, which makes rolling contact with the outer circumference of the load-bearing beam 5. This rolling element significantly reduces friction when the sliding frame housing 61 moves along the load-bearing beam 5, making operation more effortless and smoother.

[0034] The pressing component includes a sleeve 66, a spring 67, a moving rod 68, and a pressure shell 68. One end of the sleeve 66 is fixedly connected to the sliding frame shell 61, and the spring 67 is disposed inside the sleeve 66. One end of the moving rod 68 slides into the sleeve 66 and is elastically connected to the sleeve 66 via a spring 67. The other end of the moving rod 68 is connected to the pressure shell 68, which is slidably fitted around the outer periphery of the connecting rod 64. The actuator 62 is a hydraulic cylinder or a pneumatic cylinder. When the actuator 62 drives the extrusion plate 63 to compress the liquid, the liquid enters the sleeve 66, pushing the moving rod 68 and the pressure shell 68 toward the load-bearing beam 5, so that the pressure shell 68 presses against the outer periphery of the load-bearing beam 5. At this time, because the contact area between the pressure shell 68 and the load-bearing beam 5 is large, it can provide sufficient friction to lock the position of the gripping mechanism 6. When locking is not required, the actuator 62 stops working, the spring 67 drives the moving rod 68 and the pressure shell 68 to reset, the pressure shell 68 disengages from the load-bearing beam 5, and the gripping mechanism 6 can slide freely along the load-bearing beam 5 again.

[0035] It is worth mentioning that while the pressure shell 68 is pressing the load-bearing beam 5, it is in contact with the ball bearing 65. Since the ball bearing 65 generates heat during its reciprocating movement, the heat generated after long-term use will reduce its strength and service life. The contact between the pressure shell 68 and the ball bearing 65 can play a role in heat dissipation and cooling, thereby extending the service life of the rolling parts and improving the reliability of the equipment in multiple installation and disassembly operations.

[0036] The contact components include a power motor 69 and a contact block 610. The power motor 69 is mounted on the side of the slide frame housing 61, and the contact block 610 is connected to the output end of the power motor 69. The contact block 610 is used to fit tightly with the groove at the bottom of the side of the Bailey beam 7. When it is necessary to grip the Bailey beam 7, the power motor 69 changes the position of the contact block 610, thereby connecting the Bailey beam 7 with the gripping mechanism 6.

[0037] To improve the positioning effect, a positioning shaft 611 is installed on the pressure shell 68. The positioning shaft 611 can extend into or out of the load-bearing beam 5 to perform positioning or release positioning.

[0038] Example 2 Based on Embodiment 1, in order to further improve the automation and positioning of the gripping mechanism 6 moving along the load-bearing beam 5, this embodiment adds a driving component 8 to the sliding frame shell 61.

[0039] like Figure 5 As shown, the driving component 8 includes a drive motor 81 and a drive wheel 82. The drive motor 81 is fixedly mounted on the sliding frame housing 61, and the drive wheel 82 is fixedly connected to the drive shaft of the drive motor 81, and the drive wheel 82 is in rolling contact with the load-bearing beam 5.

[0040] When it is necessary to adjust the position of the gripping mechanism 6 on the load-bearing beam 5, first ensure that the pressing component is in the released state (the pressure shell 68 is disengaged from the load-bearing beam 5), then start the drive motor 81, the drive wheel 82 rotates and rolls along the load-bearing beam 5, thereby driving the sliding frame shell 61 to move along the load-bearing beam 5. The drive component 8 works in conjunction with the pressing component to achieve "release during movement and lock after positioning", further improving work efficiency. In addition, the drive component 8 can also provide auxiliary driving force under load, reducing the labor intensity of manual adjustment.

[0041] Example 3 Based on Example 2, a method for installing and dismantling Bailey beams for a 40m ultra-high steel pipe column combined support includes: During the installation of the Bailey bridge beams, the four traveling platforms 1 are first placed at the four corners of the two transverse main beams 2. The limiting wheels 3 roll in contact with the sides of the transverse main beams 2 to ensure smooth movement. Then, the load-bearing beam 5 passes through the Bailey bridge beam 7 to be installed, and the two ends of the load-bearing beam 5 are connected to the lifting mechanism 4 on the traveling platform 1 through the insert shaft 43. Next, the positions of the two gripping mechanisms 6 on the load-bearing beam 5 are adjusted according to the width of the Bailey bridge beam 7. At this time, the pressure component is in the released state, and the sliding frame shell 61 can slide freely. After adjustment, the driver 62 is started, which drives the extrusion plate 63 to compress the liquid in the sliding frame shell 61. The liquid enters the sleeve 66 and pushes the pressure shell 68 to press the load-bearing beam 5, locking the gripping mechanism 6 in the target position. Then, the drive motor 69 is started, causing the contact block 610 to fit tightly against the groove at the bottom side of the Bailey beam 7. To increase the rotational stability of the contact block 610, a stabilizing frame is rotatably connected to the drive shaft of the drive motor 69. The stabilizing frame is fixedly connected to the sliding frame housing 61, stabilizing the axial position of the drive shaft of the drive motor 69 and completing the connection between the gripping mechanism 6 and the Bailey beam 7. Finally, the linear actuator 41 is started, which drives the load-bearing beam 5 and the Bailey beam 7 to the design elevation through the connecting frame 42 and the insert shaft 43. At the same time, the traveling platform 1 can move along the transverse main beam 2 to transport the Bailey beam 7 to the precise installation position, completing the installation operation.

[0042] During the dismantling of the Bailey bridge beam, the operation procedure is the reverse of the installation procedure. First, the traveling platform 1 is moved directly under the Bailey bridge beam 7 to be dismantled. The lifting mechanism 4 raises the load-bearing beam 5 to the bottom of the Bailey bridge beam 7. The gripping mechanism 6 adjusts its position and connects with the groove of the Bailey bridge beam 7 through the contact block 610. Then, the lifting mechanism 4 is slightly lowered, causing the Bailey bridge beam 7 to detach from its original support position. The traveling platform 1 moves along the transverse main beam 2 to move the Bailey bridge beam 7 laterally to the outside of the support system. Finally, the lifting mechanism 4 lowers the Bailey bridge beam 7 to the ground or a transport device, completing the dismantling operation.

[0043] The embodiments of the present invention have been described above, but the embodiments are not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the embodiments described above, all of which are within the protection scope of the embodiments described above.

Claims

1. A device for assembling and disassembling a Bailey beam for a 40m super-high steel pipe column combined support, characterized in that, include: The walking platform (1) is used to be placed on the transverse main beam (2) and can move along the transverse main beam (2); The lifting mechanism (4) is installed on the walking platform (1); The load-bearing beam (5) is detachably connected to the lifting mechanism (4) for passing through the Bailey beam (7). The gripping mechanism (6) is set on the load-bearing beam (5) and can move along the length of the load-bearing beam (5) and be detachably connected to the side of the Bailey beam (7); The gripping mechanism (6) includes a sliding frame shell (61), a driver (62), a pressing plate (63), and a pressing member. The sliding frame shell (61) is slidably sleeved on the outer periphery of the load-bearing beam (5). The pressing plate (63) is slidably disposed inside the sliding frame shell (61). The driver (62) is installed on the sliding frame shell (61) and its output end is connected to the pressing plate (63). The sliding frame shell (61) is filled with liquid. The pressing member is connected to the sliding frame shell (61). The driver (62) drives the pressing plate (63) to compress the liquid so that the pressing member presses the load-bearing beam (5).

2. The assembly and disassembly equipment for the Bailey beam of the 40m super-high steel pipe column combined support according to claim 1, characterized in that: The pressing component includes a sleeve (66), a spring (67), a moving rod (68), and a pressure shell (68). One end of the sleeve (66) is fixedly connected to the sliding frame shell (61). The spring (67) is located inside the sleeve (66). One end of the moving rod (68) slides into the sleeve (66) and is elastically connected to the sleeve (66) through the spring (67). The other end of the moving rod (68) is connected to the pressure shell (68). When the liquid enters the sleeve (66), the pressure shell (68) moves towards the load-bearing beam (5) and presses the load-bearing beam (5).

3. The assembly and disassembly equipment for the Bailey beam of the 40m super-high steel pipe column combined support according to claim 2, characterized in that: The gripping mechanism (6) also includes a rolling element, which includes a connecting rod (64) and a ball (65). One end of the connecting rod (64) is connected to the inner wall of the sliding frame shell (61), and the other end is rotatably connected to the ball (65). The ball (65) rolls in contact with the outer periphery of the load-bearing beam (5).

4. The Bailey beam installation and dismantling equipment for a 40m ultra-high steel pipe column combined support according to claim 3, characterized in that: The pressure shell (68) is slidably sleeved on the outer periphery of the connecting rod (64), and when the pressure shell (68) presses against the load-bearing beam (5), it contacts the ball bearing (65) to dissipate heat.

5. The Bailey beam installation and dismantling equipment for a 40m ultra-high steel pipe column combined support according to claim 1, characterized in that: The gripping mechanism (6) also includes a contact element, which includes a power motor (69) and a contact block (610). The power motor (69) is mounted on the side of the slide frame housing (61), and the contact block (610) is connected to the output end of the power motor (69). The contact block (610) is used to fit tightly with the groove at the bottom of the side of the Bailey beam (7).

6. The Bailey beam installation and dismantling equipment for a 40m ultra-high steel pipe column combined support according to claim 1, characterized in that: The walking platform (1) is equipped with a limiting wheel (3) on the side. The limiting wheel (3) is rolled to the side of the transverse main beam (2) to limit the movement of the walking platform (1) laterally.

7. The Bailey beam installation and dismantling equipment for a 40m ultra-high steel pipe column combined support according to claim 1, characterized in that: The lifting mechanism (4) includes a linear actuator (41), a connecting frame (42), and a shaft (43). The linear actuator (41) is vertically mounted on the walking platform (1). The connecting frame (42) is fixedly connected to the output end of the linear actuator (41). The shaft (43) slides through the connecting frame (42) and the load-bearing beam (5) for detachable connection between the load-bearing beam (5) and the lifting mechanism (4).

8. The Bailey beam installation and dismantling equipment for a 40m ultra-high steel pipe column combined support according to claim 1, characterized in that: It also includes a drive component (8), which includes a drive motor (81) and a drive wheel (82). The drive motor (81) is fixedly mounted on the slide frame housing (61), and the drive wheel (82) is fixedly connected to the drive shaft of the drive motor (81). The drive wheel (82) makes rolling contact with the load-bearing beam (5) to drive the slide frame housing (61) to move along the load-bearing beam (5).

9. The Bailey beam installation and dismantling equipment for a 40m ultra-high steel pipe column combined support according to claim 1, characterized in that: There are four walking platforms (1), two of which are placed on a transverse main beam (2) and the other two are placed on another transverse main beam (2). The four walking platforms (1) are supported at the four corners of the transverse main beam (2).

10. A method for installing and dismantling Bailey beams for a 40m ultra-high steel pipe column combined support, employing the Bailey beam installation and dismantling equipment for a 40m ultra-high steel pipe column combined support as described in any one of claims 1 to 9, characterized in that: Includes the following steps: Place the walking platform (1) on the transverse main beam (2) of the steel pipe column combined support; The load-bearing beam (5) is passed through the Bailey beam (7) to be installed and dismantled, and the two ends of the load-bearing beam (5) are connected to the walking platform (1) by the lifting mechanism (4); Start the driver (62), drive the extrusion plate (63) to compress the liquid in the slide frame housing (61), so that the pressure member presses against the load-bearing beam (5), and lock the gripping mechanism (6) onto the load-bearing beam (5); The gripping mechanism (6) is connected to the side of the Bailey beam (7) via a contact element; The Bailey beam (7) is lifted by the lifting mechanism (4) and moved along the transverse main beam (2) by the walking platform (1) to complete the installation of the Bailey beam (7); The operation procedure for dismantling Bailey beams is the reverse of that for installation.

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