A segmental beam installation device and a segmental beam installation method

Abstract

This invention discloses a segmental beam installation device, including a main load-bearing frame and a tilting frame for supporting and fixing the segmental beam. The tilting frame is hinged to one end of the main load-bearing frame and is rotatably mounted. The main load-bearing frame is equipped with a tilting drive mechanism to drive the tilting frame, along with the segmental beam, to tilt away from the main load-bearing frame, suspending the segmental beam in the installation position for later installation. By using the tilting frame to tilt the segmental beam, the alignment and installation of the segmental beam with the fixed beam is achieved. This segmental beam installation device has a simple structure, low cost, and is not limited by the construction environment. This invention also discloses a segmental beam installation method. This invention has the advantages of low requirements for equipment precision and beam type standardization, low cost, low requirements for the construction environment, and wide applicability.

Description

Technical Field

[0001] This invention relates to the field of beam installation device technology, specifically to a segmental beam installation device and a segmental beam installation method. Background Technology

[0002] Precast segmental box girders, as an attempt to explore the future development direction of bridges, have advantages such as superior structural performance, convenient transportation, fast construction speed, and minimal impact on traffic and the environment during construction. In recent years, they have been gradually applied in highway and railway beams.

[0003] Currently, segmental beams are fabricated in the prefabrication plant and transported to the site. There are two installation methods: whole-span installation and cantilever assembly. Whole-span installation requires a large lifting machine to lift and install the segmental beams together. Cantilever assembly uses a bridge crane with a diamond-shaped basket structure to vertically lift each beam from the under-bridge structure to the bridge deck for installation. These existing technologies have some shortcomings:

[0004] 1. The whole-hole installation method requires high equipment precision, has high cost, and requires a high level of standardization of beam type.

[0005] 2. When using the cantilever assembly method, the bridge deck crane cannot lift the beam from the pier position, which places high demands on the transportation conditions under the bridge and has a limited scope of application. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a segmental beam installation device that is simple in structure, low in cost and wide in applicability.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a segmental beam installation device, including a main load-bearing frame and a flipping frame for supporting and fixing the segmental beam. The flipping frame is hingedly mounted to one end of the main load-bearing frame in a rotatable manner. The main load-bearing frame is provided with a flipping drive mechanism for driving the flipping frame together with the segmental beam to flip away from the main load-bearing frame so that the segmental beam is suspended in the installation position before installation.

[0008] As a further improvement to the above technical solution: the flipping drive mechanism includes a drive component and a control component, the drive component drives the flipping frame to flip, and the control component controls the flipping speed and flipping angle of the flipping frame.

[0009] As a further improvement to the above technical solution: the control component includes a winch and a traction component, the traction component connecting the winch and the tilting frame, and is used to assist the winch in controlling the tilting speed of the tilting frame.

[0010] As a further improvement to the above technical solution: the segmental beam installation device also includes a rotatable support rod, one end of which is hinged to the connection between the main load-bearing frame and the tilting frame, and the other end is movably connected to the traction component. When the tilting frame is tilted, the support rod will support the traction component so that the main load-bearing frame, the tilting frame, the support rod and the traction component respectively form a triangular stable structure.

[0011] As a further improvement to the above technical solution, the segmental beam installation device also includes a buffer assembly to buffer the impact force brought about by the overturning of the segmental beam.

[0012] As a further improvement to the above technical solution: the buffer assembly includes a connector and a buffer cylinder. The connector is located on the segment beam, and the buffer cylinder is located on the fixed beam. After the segment beam is flipped to the point where the connector and the buffer cylinder are connected, the flipping speed of the segment beam is controlled by the buffer cylinder.

[0013] As a further improvement to the above technical solution: one end of the drive component is rotatably connected to the tilting frame, and the other end is detachably connected to the ear seat set on the main load-bearing frame.

[0014] As a further improvement to the above technical solution: the bottom of the main load-bearing frame is provided with a movable component and a lifting component. The movable component drives the segmental beam installation device to move as a whole on the fixed beam, and the lifting component ensures that the movable component does not contact the fixed beam.

[0015] The present invention further provides a method for installing segmental beams, the method comprising the following steps:

[0016] Step S1: Connecting segment beams: The external lifting device inverts the segment beams and places them on the tilting frame, and the segment beams are fixedly connected to the tilting frame.

[0017] Step S2: Move and fix the device: The main load-bearing frame moves the segmental beam to the end of the fixed beam, and the main load-bearing frame is fixedly connected to the fixed beam.

[0018] Step S3, drive the tilting frame: tilt the frame away from the main load-bearing frame so that the segment beam is suspended in the position to be installed.

[0019] Step S4: Adjust position: The tilting frame drives the segment beam to tilt to the installation position and aligns it with the fixed beam for installation.

[0020] Step S5, Reset: After the segmental beam and fixed beam are installed, disconnect the tilting frame from the segmental beam, remove the connection between the main load-bearing frame and the segmental beam, and tilt the tilting frame towards the main load-bearing frame until it coincides with the main load-bearing frame, in preparation for the installation of the next segmental beam.

[0021] As a further improvement to the above technical solution:

[0022] In step S1, the segmental beam and the tilting frame are fixedly connected by connecting rods; in step S2, the main load-bearing frame and the fixed beam are fixedly connected by anchor rods.

[0023] Compared with the prior art, the advantages of the present invention are as follows:

[0024] I. The segmental beam installation device of the present invention includes a main load-bearing frame, one end of which is hinged to a tilting frame. In the initial position, the main load-bearing frame and the tilting frame overlap. The segmental beam is lifted by an external lifting device and placed upside down on the tilting frame. The tilting frame carries the segmental beam. A tilting drive mechanism drives the tilting frame, along with the segmental beam, to tilt away from the main load-bearing frame, so that the segmental beam tilts to the installation position, achieving alignment and installation between the segmental beam and the fixed beam. By setting the tilting frame to drive the tilting of the segmental beam to achieve alignment and installation between the segmental beam and the fixed beam, this segmental beam installation device has a simple structure, low cost, is not limited by the construction environment, and has a wide range of applications.

[0025] 2. The segmental beam installation device of the present invention is provided with a drive component and a control component. The drive component provides power for the tilting frame to tilt, and the control component controls the tilting speed and tilting angle of the tilting frame to avoid the segmental beam from tilting and hitting the fixed beam, causing damage to the beam.

[0026] Third, the segmental beam installation device of the present invention is equipped with a winch and a traction component to control the turning speed and angle of the turning frame. The traction component connects the winch and the turning frame. The winch controls the winding and unwinding speed of the traction component, which further controls the turning speed of the turning frame. The structure is simple and reliable.

[0027] Fourth, the segmental beam installation device of the present invention, by setting a rotatable support rod to support the traction component, forms a triangular stable structure between the main load-bearing frame, the flipping frame, the support rod and the traction component, similar to a triangular hanging basket structure, which facilitates stable position adjustment after the segmental beam is flipped to the installation position.

[0028] Fifth, the segmental beam installation device of the present invention, by setting a buffer component, on the one hand assists the control component in coordinating the control of the tilting frame's tilting speed, and on the other hand avoids the segmental beam from hitting the fixed beam after the tilting frame tilts, thus preventing damage to the beam.

[0029] VI. A segmental beam installation method of the present invention involves moving a precast beam to the installation position, fixing the installation device, then driving a tilting frame to tilt the segmental beam to the installation position, and further adjusting the position of the segmental beam by adjusting the components to align and install it with the fixed beam.

[0030] VII. The segmental beam installation method of the present invention, compared with the whole-span installation method, has lower requirements for equipment precision and beam standardization, and lower cost. Compared with the cantilever assembly method, it has lower requirements for the construction environment and a wider range of applications. Moreover, since the segmental beam is installed using the above-mentioned segmental beam installation device, it possesses all the advantages of the above-mentioned segmental beam installation device. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of a segmental beam installation device according to the present invention.

[0032] Figure 2 This is a schematic diagram of the structure of the segmental beam installation device of the present invention during operation.

[0033] Figure 3 This is a schematic flowchart of a segmental beam installation method according to the present invention.

[0034] Figure 4 A schematic diagram of the state of a segmental beam installation device of the present invention when connecting segmental beams.

[0035] Figure 5 A schematic diagram of the state of a segmental beam installation device of the present invention during movement.

[0036] Figure 6 A schematic diagram of the segmental beam installation device of the present invention in a fixed state.

[0037] Figure 7 A schematic diagram of the state of a segmental beam installation device of the present invention when the drive assembly drives the tilting frame to tilt.

[0038] Figure 8 A schematic diagram of the state of a segmental beam installation device of the present invention when the drive assembly is released.

[0039] Figure 9 A schematic diagram of the state of the tilting frame of the segmental beam installation device of the present invention when it is tilted to an obtuse angle with the main load-bearing frame.

[0040] Figure 10 A schematic diagram of the state of a segmental beam installation device of the present invention when connecting a buffer assembly.

[0041] Figure 11 A schematic diagram of the working state of the buffer assembly of a segmental beam installation device according to the present invention.

[0042] Figure 12 A schematic diagram of the state of a segmental beam installation device of the present invention when the segmental beam is flipped to the installation position.

[0043] The labels in the diagram represent: 1. Main load-bearing frame; 11. Moving component; 12. Lifting component; 2. Tilting frame; 3. Support rod; 4. Tilting drive mechanism; 41. Drive assembly; 42. Control assembly; 421. Winch; 422. Traction component; 5. Buffer assembly; 51. Connecting component; 52. Buffer cylinder; 53. Positioning spring; 7. Ear seat; 8. Segmental beam; 9. Fixed beam; 91. Pier. Detailed Implementation

[0044] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0045] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0047] In this invention, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0048] like Figure 1 and Figure 2 As shown, the segmental beam installation device of this embodiment includes a main load-bearing frame 1 and a flipping frame 2 for supporting and fixing the segmental beam 8. The flipping frame 2 is hinged to one end of the main load-bearing frame 1 and is provided with a flipping drive mechanism 4 on the main load-bearing frame 1 for driving the flipping frame 2 together with the segmental beam 8 to flip away from the main load-bearing frame 1 so that the segmental beam 8 is suspended in the installation position for installation.

[0049] In the initial position, the tilting frame 2 of this segmental beam installation device coincides with the main load-bearing frame 1, and the segmental beam 8 is inverted on the tilting frame 2 via an external lifting device and connected to the tilting frame 2. The tilting drive mechanism 4 drives the tilting frame 2 to rotate away from the main load-bearing frame 1, tilting the tilting frame 2 to the installation position, so that the segmental beam 8 is aligned with the fixed beam 9 and fixedly installed, completing the assembly of the segmental beam 8.

[0050] Furthermore, by setting up a flipping drive mechanism 4 to drive the flipping frame 2 to flip, the segmental beam 8 is also flipped, achieving alignment and installation with the fixed beam 9. Using this segmental beam installation device, compared to the whole-hole installation method, the requirements for equipment precision and beam standardization are not high, and the cost is low. Compared to the cantilever assembly method, it has lower requirements for the construction environment and a wider range of applications. This segmental beam installation device has the advantages of simple structure, low cost, and wide applicability.

[0051] In this embodiment, the tilting drive mechanism 4 includes a drive component 41 (e.g., a motor, hydraulic cylinder, etc.) and a control component 42. The drive component 41 drives the tilting frame 2 to tilt, and the control component 42 controls the tilting speed and tilting angle of the tilting frame 2. The drive component 41 provides power for the tilting of the tilting frame 2, so that the tilting frame 2 and the segmental beam 8 carried by the tilting frame 2 tilt together around the connection between the tilting frame 2 and the main load-bearing frame 1. By controlling the tilting speed and tilting angle of the tilting frame 2 during the tilting process, the control component 42 avoids excessive impact force of the segmental beam 8 on the fixed beam 9, which could cause damage to the beam.

[0052] In this embodiment, the control component 42 includes a winch 421 and a traction member 422. The traction member 422 connects the winch 421 and the tilting frame 2, and is used to assist the winch 421 in controlling the tilting speed of the tilting frame 2. In this embodiment, the traction member 422 is preferably a steel cable; in other embodiments, it can also be other traction ropes. The steel cable connects the winch 421 and the tilting frame 2. The winch 421 controls the winding and unwinding speed of the steel cable, further controlling the tilting speed of the tilting frame 2, and preventing the tilting speed from being too fast, which could cause the segmental beam 8 to collide with the fixed beam 9 and cause damage to the beam.

[0053] In this embodiment, the segmental beam installation device also includes a rotatable support rod 3. One end of the support rod 3 is hinged to the connection between the main load-bearing frame 1 and the tilting frame 2, and the other end is movably connected to the traction member 422. When the tilting frame 2 is tilted, the support rod 3 supports the traction member 422 so that the main load-bearing frame 1, the tilting frame 2, the support rod 3 and the traction member 422 respectively form a triangular stable structure.

[0054] In this embodiment, the top of the support rod 3 has a through hole, through which the traction member 422 (steel cable) moves. When the tilting frame 2 gradually tilts, the steel cable will pull up the horizontally tilted support rod 3 (e.g., Figures 7 to 12(As shown in the diagram). In other embodiments, the support rod 3 and the traction member 422 can also be connected by other movable connection methods. As the tilting frame 2 continues to tilt, the support rod 3 will support the traction member 422 (steel cable) (e.g. Figures 8 to 12 (As shown in the diagram), until the tilting frame 2 tilts into place, the vertical support rod 3 will support the traction component 422 (steel cable). At this time, a connection is formed between the main load-bearing frame 1, the tilting frame 2, the support rod 3, and the traction component 422 as shown in the diagram. Figure 6 The two triangular stable structures shown are similar to a triangular hanging basket structure (such as...). Figure 12 (As shown in the diagram). The traction component 422 is supported by the support rod 3, so that the tilting frame 2, the main load-bearing frame 1 and the traction component 422 form a triangle. At this time, the tilting frame 2 drives the segment beam 8 to tilt and suspend in the position to be installed (that is, the main load-bearing frame 1 and the tilting frame 2 are on the same horizontal line). The structure is stable, which makes it easy to further adjust the position of the segment beam 8 to connect with the fixed beam 9.

[0055] In this embodiment, the segmental beam installation device also includes a buffer assembly 5, which is used to buffer the impact force brought about by the overturning of the segmental beam 8. This prevents the segmental beam 8 from hitting the fixed beam 9 after overturning and damaging the beam body.

[0056] In this embodiment, the buffer assembly 5 includes a connector 51 (e.g., an ear seat) and a buffer cylinder 52. The connector 51 is mounted on the segmental beam 8, and the buffer cylinder 52 is mounted on the fixed beam 9. After the segmental beam 8 is flipped until the connector 51 and the buffer cylinder 52 are connected, the flipping speed of the segmental beam 8 is controlled by the buffer cylinder 52. When the segmental beam 8 is flipped until the connector 51 and the buffer cylinder 52 are in contact, the flipping speed of the segmental beam 8 is controlled by the buffer cylinder 52 to prevent the segmental beam 8 from impacting the beam body.

[0057] Preferably, the buffer cylinder 52 is provided with positioning springs 53 on both sides. On the one hand, the buffer cylinder 52 is positioned, and on the other hand, the elastic force of the positioning springs 53 can buffer the impact force of the segment beam 8 flipping, further preventing the segment beam 8 from impacting the fixed beam 9.

[0058] In this embodiment, one end of the drive assembly 41 is rotatably connected to the tilting frame 2, and the other end is detachably connected to the lug 7 provided on the main load-bearing frame 1. The main load-bearing frame 1 is provided with the lug 7. One end of the drive assembly 41 (preferably a hydraulic cylinder in this embodiment) is detachably connected to the lug 7 on the main load-bearing frame 1 (e.g., snap-fit, plug-in, etc.), and the other end is rotatably connected to the lug 7 on the tilting frame 2. By providing the lug 7 on the main load-bearing frame 1, the main load-bearing frame 1 and the drive assembly 41 can be freely disassembled and assembled. When the rotation angle between the tilting frame 2 and the main load-bearing frame 1 is an obtuse angle, the connection between the drive assembly 41 and the lug 7 on the main load-bearing frame 1 will be released, preventing interference between the tilting frame 2 and the drive assembly 41 when the tilting frame 2 continues to rotate.

[0059] In this embodiment, the bottom of the main load-bearing frame 1 is provided with a movable component 11 (e.g., wheels, tracks, etc.) and a lifting component 12 (e.g., a jack). The movable component 11 drives the entire segmental beam installation device to move on the fixed beam 9, and the lifting component 12 prevents the movable component 11 from contacting the fixed beam 9. The movable component 11 drives the segmental beam installation device to move between the pier 91 and the installation position, and the lifting component 12 suspends the movable component 11 in the air, further fixing the main load-bearing frame 1 and the top plate of the fixed beam 9, and preventing the movable component 11 from causing the segmental beam installation device to shift.

[0060] Preferably, the tilting frame 2 is equipped with an adjustment component (not shown in the figure) to ensure precise alignment between the tilted segment beam 8 and the fixed beam 9. When the tilting frame 2 rotates to the installation position, the position of the segment beam 8 is adjusted by the adjustment component to align the segment beam 8 with the fixed beam 9 and anchor it, thus achieving precise alignment and installation.

[0061] Preferably, buffer components (such as springs, rubber, etc.) are provided at the hinge joint between the main load-bearing frame 1 and the tilting frame 2, as well as inside the winch 421. The buffer components play a buffering role during the tilting process of the tilting frame 2, further increasing the stability of the segmental beam installation device.

[0062] Preferably, multiple sets of segmental beam installation devices are arranged along the transverse direction of the segmental beam to further ensure the stability of the installation process.

[0063] like Figure 3 As shown, in this embodiment, the segmental beam installation method using the above-mentioned segmental beam installation device includes the following steps:

[0064] Step S1, Connecting Segment Beams: Please refer to... Figure 4 The external lifting device inverts the segment beam 8 and places it on the tilting frame 2, and the segment beam 8 is fixedly connected to the tilting frame 2.

[0065] Step S2, Move and Secure the Device: Please refer to Figure 5 and Figure 6 The main load-bearing frame 1 moves the segment beam 8 to the end of the fixed beam 9, and the main load-bearing frame 1 is fixedly connected to the fixed beam 9.

[0066] Step S3, Drive the tilting frame: Please refer to Figures 7 to 12 The tilting frame 2 is tilted away from the main load-bearing frame 1 so that the segment beam 8 is suspended in the position to be installed.

[0067] Step S4, Adjust position: Please refer to Figure 12 The tilting frame 2 drives the segment beam 8 to tilt to the installation position and aligns it with the fixed beam 9 for installation.

[0068] Step S5, Reset: After the segmental beam 8 and the fixed beam 9 are installed, disconnect the flipping frame 2 from the segmental beam 8, remove the connection between the main load-bearing frame 1 and the segmental beam 9, and flip the flipping frame 2 towards the main load-bearing frame 1 until it overlaps with the main load-bearing frame 1, in preparation for the installation of the next segmental beam 8.

[0069] This segmental beam installation method uses a flipping drive mechanism 4 to drive a flipping frame 2 and an inverted segmental beam 8 on the flipping frame 2 to rotate around one end of the main load-bearing frame 1. When the flipping frame 2 flips the segmental beam 8 to the installation position, the position of the segmental beam 8 is adjusted to align it with the fixed beam 9 for installation, achieving simple and quick installation of the segmental beam. This segmental beam installation method has low requirements for equipment precision and beam type standardization, low requirements for the construction environment, and wide applicability. Furthermore, because it uses the aforementioned segmental beam installation device to install the segmental beam 8, it possesses all the advantages of the aforementioned segmental beam installation device.

[0070] In this embodiment, in step S1, the segment beam 8 and the tilting frame 2 are fixedly connected by a connecting rod (not shown in the figure); in step S2, the main load-bearing frame 1 and the fixed beam 9 are fixedly connected by an anchor rod (not shown in the figure).

[0071] Preferably, step S3 includes the following steps:

[0072] Step S3.1: Rotate the drive component to reduce power: When the drive assembly 41 drives the tilting frame 2 to rotate, the driving force gradually decreases. When the angle between the center of gravity of the segment beam 8 and the main load-bearing frame 1 is an obtuse angle, the drive assembly 41 does not provide driving force.

[0073] Step S3.2, Disconnect: When the drive assembly 41 no longer provides driving force, the connection between the lug 7 on the main load-bearing frame 1 and the drive assembly 41 is released, the drive assembly 41 hangs down naturally, and the rotation of the segment beam 8 is controlled by the control assembly 42.

[0074] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the invention. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the scope of the present invention, should fall within the protection scope of the present invention.

Claims

1. A segmental beam installation device, characterized in that: The system includes a main load-bearing frame (1) and a tilting frame (2) for supporting and fixing the segment beam (8). The tilting frame (2) is hinged to one end of the main load-bearing frame (1) and the main load-bearing frame (1) is provided with a tilting drive mechanism (4) for driving the tilting frame (2) together with the segment beam (8) to tilt away from the main load-bearing frame (1) so that the segment beam (8) is suspended in the installation position for installation. The bottom of the main load-bearing frame (1) is provided with a moving part (11) and a lifting part (12). The moving part (11) drives the segment beam installation device to move on the fixed beam (9) as a whole. The lifting part (12) prevents the moving part (11) from contacting the fixed beam (9).

2. The segmental beam installation device according to claim 1, characterized in that: The flipping drive mechanism (4) includes a drive component (41) and a control component (42). The drive component (41) drives the flipping frame (2) to flip, and the control component (42) controls the flipping speed and flipping angle of the flipping frame (2).

3. The segmental beam installation device according to claim 2, characterized in that: The control component (42) includes a winch (421) and a traction component (422), the traction component (422) connecting the winch (421) and the tilting frame (2) to assist the winch (421) in controlling the tilting speed of the tilting frame (2).

4. The segmental beam installation device according to claim 3, characterized in that: It also includes a rotatable support rod (3), one end of which is hinged to the connection between the main load-bearing frame (1) and the tilting frame (2), and the other end is movably connected to the traction member (422). When the tilting frame (2) is tilted, the support rod (3) supports the traction member (422) so that the main load-bearing frame (1), the tilting frame (2), the support rod (3) and the traction member (422) form a triangular stable structure respectively.

5. The segmental beam installation device according to claim 1, characterized in that: It also includes a buffer assembly (5) to buffer the impact force brought about by the overturning of the segment beam (8).

6. The segmental beam installation device according to claim 5, characterized in that: The buffer assembly (5) includes a connector (51) and a buffer cylinder (52). The connector (51) is located on the segment beam (8), and the buffer cylinder (52) is located on the fixed beam (9). After the segment beam (8) is flipped to the point where the connector (51) and the buffer cylinder (52) are connected, the flipping speed of the segment beam (8) is controlled by the buffer cylinder (52).

7. The segmental beam installation device according to claim 2, characterized in that: One end of the drive assembly (41) is rotatably connected to the tilting frame (2), and the other end is detachably connected to the ear seat (7) set on the main load-bearing frame (1).

8. A method for installing a segmental beam using the segmental beam installation device according to claim 1, characterized in that: The segmental beam installation method includes the following steps: Step S1, Connecting the segment beam: The external lifting device inverts the segment beam (8) and places it on the tilting frame (2), and the segment beam (8) is fixedly connected to the tilting frame (2); Step S2, Move and fix the device: The main load-bearing frame (1) moves the segment beam (8) to the end of the fixed beam (9), and the main load-bearing frame (1) is fixedly connected to the fixed beam (9); Step S3, drive the tilting frame: tilting frame (2) tilts away from the main load-bearing frame (1) so that the segment beam (8) is suspended in the position to be installed; Step S4, Adjust position: The tilting frame (2) drives the segment beam (8) to tilt to the installation position and align it with the fixed beam (9) for installation; Step S5, Reset: After the segment beam (8) and the fixed beam (9) are installed, disconnect the connection between the flipping frame (2) and the segment beam (8), remove the connection between the main load-bearing frame (1) and the segment beam (8), and flip the flipping frame (2) towards the main load-bearing frame (1) until it overlaps with the main load-bearing frame (1) to prepare for the installation of the next segment beam (8).

9. The segmental beam installation method according to claim 8, characterized in that: In step S1, the segmental beam (8) and the tilting frame (2) are fixedly connected by connecting rods; in step S2, the main load-bearing frame (1) and the fixed beam (9) are fixedly connected by anchor rods.

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