Suspension type cantilever bridge fabrication machine and bridge fabrication method

Abstract

The invention relates to the field of bridge fabrication machines, and provides a suspension type cantilever bridge fabrication machine and a bridge manufacturing method. The suspension type cantilever bridge fabrication machine comprises a main truss assembly arranged below a bridge floor of a bridge; the rear upper cross beam is arranged above the bridge floor of the bridge; the main hanging bracket anchoring device penetrates through a bridge floor during pouring, and the upper end and the lower end of the main hanging bracket anchoring device are connected with the rear upper cross beam and the main truss assembly respectively; the first track is arranged above the bridge surface of the bridge and is used for supporting the rear upper cross beam; the mounting position of the first track can be adjusted so as to provide hanging force for the front end of the main truss assembly when the main truss assembly travels; the reverse hanging wheel assembly is mounted on the lower surface of the bridge wing plate; the second track is mounted on the main truss assembly and is in limiting fit with the reverse hanging wheel assembly; and the bottom basket system is connected to the main truss assembly. According to the suspension type cantilever bridge fabrication machine, the problem that in the prior art, due to the fact that the size of a C-shaped hook is too large, use of the C-shaped hook on a left bridge and a right bridge is limited can be solved.

Description

Technical Field

[0001] This application relates to the field of bridge building machines, and more particularly to a suspended cantilever bridge building machine and a bridge manufacturing method. Background Technology

[0002] The existing bridge-building machine's structural system, from bottom to top, consists of a base basket, a suspension system, a main truss, tracks, and a front upper crossbeam. Equipment and construction loads act directly on the base basket, and the load on the base basket is transferred to the front upper crossbeam or the already poured segments through the suspension system. The stress difference between the pouring and traveling conditions is significant. In the pouring state, the main truss relies on the rear support system and the main hanger anchoring device for balance. In the traveling state, the anchoring steel bars need to be removed, and the middle of the main truss is suspended by a C-hook, while the tail is supported by a counter-rotating wheel. Because in the traveling state, the entire structural weight of the main truss, base basket, formwork, etc., below the beam surface must be entirely borne by the C-hook, a large structural dimension of the C-hook is necessary to meet the ultimate load-bearing requirements. However, due to the large size of the C-hook, when encountering highway bridges with left and right spans, interference between the C-hook and the concrete can occur when the distance L between the left and right spans is small, making it impossible to construct the left and right spans of the highway bridge using the existing bridge-building machine. Summary of the Invention

[0003] This application provides a suspended cantilever bridge building machine to solve the problem that the C-type hook is too large in the prior art, which restricts its use on the left and right sides of the bridge.

[0004] This application also provides a bridge manufacturing method.

[0005] According to an embodiment of the first aspect of this application, a suspended cantilever bridge building machine includes: The main truss assembly is located below the bridge deck; The rear upper crossbeam is set above the bridge deck; The main hanger anchoring device passes through the bridge deck during pouring, and its upper and lower ends are respectively connected to the rear upper crossbeam and the main truss assembly; The first track, positioned above the bridge deck, supports the rear upper crossbeam; the first track is adjustable in position to provide a suspending force to the front end of the main truss assembly as the main truss assembly travels. The anti-rollover wheel assembly is installed on the lower surface of the bridge wing plate; The second track is installed on the main truss assembly and is limited in cooperation with the anti-roller assembly; The bottom basket system is connected to the main truss assembly.

[0006] According to one embodiment of this application, the anti-locking wheel assembly includes: The mounting base is fixedly connected to the lower surface of the bridge wing plate; The connectors, numbering at least two and symmetrically mounted on the mounting base; The number of wheels corresponds to the number of the connectors, and they are installed on the free end of the connectors; a receiving space is formed between two oppositely arranged wheels; The second orbit includes: The track body is fixedly connected to the main truss assembly at the bottom and extends into the receiving space at the top; A limiting plate is connected to the upper part of the track body, and the wheel body abuts against the limiting plate to limit the separation of the second track from the anti-coupling wheel assembly.

[0007] According to one embodiment of this application, the anti-locking wheel assembly further includes: A fixed shaft passes through the fixing hole of the mounting base, and both ends extend out of the mounting base; A connecting shaft is used to mount the wheel body, and one end extends out of the wheel body; The connector is a connecting plate, which has a first connecting hole and a second connecting hole; the fixed shaft extends from the end of the mounting base and is inserted into the first connecting hole, and the connecting shaft extends from one end of the wheel body and is inserted into the second connecting hole.

[0008] According to one embodiment of this application, the suspended cantilever bridge building machine further includes a first drive mechanism, which is installed on the first track and whose output end is connected to the rear upper crossbeam to drive the rear upper crossbeam to move relative to the first track.

[0009] According to one embodiment of this application, the suspended cantilever bridge building machine further includes a support and traveling mechanism installed at the lower end of the rear upper crossbeam, the support and traveling mechanism comprising: The running wheels are used to contact the first track to facilitate the movement of the rear upper crossbeam; A support unit is used to support the rear upper crossbeam on the bridge deck during pouring, thereby separating the running wheels from the first track.

[0010] According to one embodiment of this application, the suspended cantilever bridge-building machine further includes: The first suspension mechanism is connected at its lower end to the front end of the main truss assembly during the movement of the main truss assembly. The second drive mechanism is installed on the first track, and its output end is connected to the upper end of the first suspension mechanism.

[0011] According to one embodiment of this application, the suspended cantilever bridge-building machine further includes: The second suspension mechanism is connected at its upper end to the middle position of the main truss assembly and at its lower end to the rear end of the bottom basket system. The third suspension mechanism is connected at its upper end to the bottom of the bridge and at its lower end to the rear end of the basket system; and is removed before the main truss assembly travels.

[0012] According to one embodiment of this application, the main truss assembly includes: Two main truss units are respectively located on both sides of the bridge; The front upper crossbeam extends along the transverse direction of the bridge and is connected at both ends to the two main truss units respectively.

[0013] According to one embodiment of this application, the suspended cantilever bridge-building machine further includes: The fourth suspension mechanism is connected at its upper end to the front end of the main truss unit and at its lower end to the front end of the bottom basket system. The fifth hanging mechanism is connected at its upper end to the front upper crossbeam and at its lower end to the front end of the bottom basket system.

[0014] According to one embodiment of this application, the main hanger anchoring device includes: The steel bar is fixed at its upper end to the rear upper crossbeam and extends downward through the bridge deck at its lower end. A clamping seat is fixed to the lower end of the steel rod; the clamping seat is provided with a first through hole; The main truss assembly has a second through hole at its upper part, and the pin passes through the first through hole and the second through hole to connect the clamping seat and the main truss assembly.

[0015] According to one embodiment of this application, the rear upper crossbeam is provided with a protruding section to increase the distance between the rear upper crossbeam and the bridge deck.

[0016] According to one embodiment of this application, along the transverse direction of the bridge, the length of the rear upper crossbeam is less than the width of the bridge deck.

[0017] A bridge manufacturing method according to a second aspect of this application, the bridge manufacturing method using the aforementioned suspended cantilever bridge building machine, includes: The first pour is made at the initial position; The first track was removed and reinstalled at a pre-set position at the front of the bridge to suspend the front end of the main truss assembly; Remove the anti-hanging wheel assembly and reinstall it at a pre-set position at the front of the bridge to suspend the rear end of the main truss assembly; Remove the devices that restrict the movement of the main truss assembly; The main truss assembly moves forward to the position for the second pouring; After installation, the main hanger anchoring device between the upper crossbeam and the main truss assembly is installed; The second pouring is then carried out.

[0018] According to one embodiment of this application, before dismantling the anti-hanging wheel assembly and reinstalling it at a predetermined position at the front of the bridge to suspend the rear end of the main truss assembly, the method further includes: Install the first suspension mechanism; The main truss assembly moves forward to the second pouring position, including: The second drive mechanism, through the first suspension mechanism, propels the main truss assembly forward to the second pouring position.

[0019] According to one embodiment of this application, before the second pouring, the method further includes: Dismantle the first suspension mechanism; The first track shifts backward; Material hoisting operations are being carried out.

[0020] According to one embodiment of this application, prior to the main hanger anchoring device between the installed upper crossbeam and the main truss assembly, the following is further included: The first drive mechanism drives the rear upper crossbeam forward; The process of installing the main hanger anchoring device between the upper crossbeam and the main truss assembly after installation also includes: Install a third suspension mechanism located between the basket system and the bottom of the bridge.

[0021] According to one embodiment of this application, before the first drive mechanism drives the upper crossbeam forward, the method further includes: The support unit in the supporting traveling mechanism retracts, causing the traveling wheel to contact the first track.

[0022] According to one embodiment of this application, the device for removing the restriction on the movement of the main truss assembly includes: Remove the third suspension mechanism between the bottom basket system and the bottom of the bridge, and remove the main hanger anchoring device between the rear upper crossbeam and the main truss assembly.

[0023] The above-described one or more technical solutions in the embodiments of this application have at least one of the following technical effects: The suspended cantilever bridge-building machine of this application has a basket system fixed to the main truss assembly. During pouring, the weight of the main truss assembly and the pouring load are borne by the main hanger anchoring device. The anti-hanging wheel assembly at the rear end of the main truss assembly cooperates with the second track to restrict the forward tilting of the front end of the main truss assembly. During travel, the front end of the main truss assembly is suspended by the first track, and the anti-hanging wheel assembly at the rear end of the main truss assembly cooperates with the second track to allow the main truss to move forward to the next pouring position. With the above structure, there is no need to set C-hook structures at both ends of the rear upper crossbeam, which optimizes the structure of the suspended cantilever bridge-building machine of this application and can be applied to highway bridges with left and right spans and small distances between the left and right spans, eliminating the "C-hook interference" situation.

[0024] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a structural schematic diagram of the suspended cantilever bridge-building machine provided in this application. Figure 1 (Initial pouring state).

[0027] Figure 2 This is a structural schematic diagram of the suspended cantilever bridge-building machine provided in this application. Figure 2 (The first track and anti-roller assembly are installed at the next pouring position.)

[0028] Figure 3 for Figure 1 Sectional view of AA.

[0029] Figure 4 for Figure 1 CC section view.

[0030] Figure 5 for Figure 1 DD section view.

[0031] Figure 6 for Figure 5 Enlarged view of the structure of section E in the middle.

[0032] Figure 7 This is a schematic diagram of the structure of the anti-roller assembly provided in this application. Figure 1 (Front view).

[0033] Figure 8 This is a schematic diagram of the structure of the anti-roller assembly provided in this application. Figure 2 (Side view).

[0034] Figure 9 for Figure 3 Enlarged view of the structure of section B in the middle.

[0035] Figure 10 This is a structural schematic diagram of the suspended cantilever bridge-building machine provided in this application. Figure 3 (Remove the main hanger anchoring device).

[0036] Figure 11This is a structural schematic diagram of the suspended cantilever bridge-building machine provided in this application. Figure 4 (The second drive mechanism drives the main truss assembly forward.)

[0037] Figure 12 This is a structural schematic diagram of the suspended cantilever bridge-building machine provided in this application. Figure 5 (The first drive mechanism drives the upper rear crossbeam forward.)

[0038] Figure 13 This is a structural schematic diagram of the suspended cantilever bridge-building machine provided in this application. Figure 6 (Install the main hanger anchoring device).

[0039] Figure 14 This is a structural schematic diagram of the suspended cantilever bridge-building machine provided in this application. Figure 7 (The first track moves backward).

[0040] Figure 15 This is a schematic diagram of the suspended cantilever bridge building machine provided in this application applied to the left and right lanes of a highway bridge.

[0041] Figure 16 This is a flowchart illustrating the bridge manufacturing method provided in this application. Figure 1 .

[0042] Figure 17 This is a flowchart illustrating the bridge manufacturing method provided in this application. Figure 2 .

[0043] Figure label: 1. Main truss assembly; 11. Main truss unit; 12. Front upper crossbeam; 2. Rear upper crossbeam; 21. Protruding section; 3. Main hanger anchoring device; 31. Steel bar; 32. Clamping seat; 33. Pin; 4. First track; 5. Reverse roller assembly; 51. Mounting base; 511. Pad; 512. Seat body; 52. Connector; 521. First connecting hole; 522. Second connecting hole; 53. Wheel body; 531. Accommodation space; 54. Fixed shaft; 55. Connecting shaft; 6. Second track; 61. Track body; 62. Limiting plate; 7. Basket system; 81. First drive mechanism; 82. Second drive mechanism; 83. Supporting travel mechanism; 831. Traveling wheel; 832. Support unit; 91. First suspension mechanism; 92. Second suspension mechanism; 93. Third suspension mechanism; 94. Fourth suspension mechanism; 95. Fifth suspension mechanism; 96. Bridge deck; 97. Wing plate. Detailed Implementation

[0044] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but should not be used to limit the scope of this application.

[0045] In the description of the embodiments of this application, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0047] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0048] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0049] According to an embodiment of the first aspect of this application, a suspended cantilever bridge-building machine is provided, such as... Figure 1 and Figure 2 As shown, the suspended cantilever bridge-building machine includes: a main truss assembly 1, a rear upper crossbeam 2, a main hanger anchoring device 3, a first track 4, a reverse wheel assembly 5, a second track 6, and a basket system 7. The main truss assembly 1 is located below the bridge deck 96; the rear upper crossbeam 2 is located above the bridge deck 96; the main hanger anchoring device 3 passes through the bridge deck 96 during pouring and is connected at its upper and lower ends to the rear upper crossbeam 2 and the main truss assembly 1, respectively; the first track 4 is located above the bridge deck 96 to support the rear upper crossbeam 2; the first track 4 is adjustable in position to provide a suspending force to the front end of the main truss assembly 1 when it travels; the reverse wheel assembly 5 is installed on the lower surface of the bridge wing plate 97; the second track 6 is installed on the main truss assembly 1 and engages with the reverse wheel assembly 5 for limiting; the basket system 7 is connected to the main truss assembly 1.

[0050] like Figure 1 As shown, the second track 6 is installed on the upper end of the main truss assembly 1 and is located between the rear end point and the middle point of the main truss assembly 1; during the pouring, the anti-roller assembly 5 applies downward pressure to the second track 6, and when the main truss assembly 1 travels, the anti-roller assembly 5 provides upward tension to the second track 6.

[0051] The front end of the bottom basket system 7 is connected to the front end of the main truss assembly 1, and the rear end of the bottom basket system 7 is connected to the middle position of the main truss assembly 1.

[0052] The main truss assembly 1 of the suspended cantilever bridge-building machine is positioned below the bridge deck 96, bearing the loads of the basket system 7 and other construction-related loads. The rear upper crossbeam 2 is correspondingly positioned above the bridge deck 96, and the two are connected by the main hanger anchoring device 3, which penetrates the bridge deck 96 to form a load-bearing support foundation for the pouring process. The first track 4 is laid above the bridge deck 96, mainly serving to support the rear upper crossbeam 2, and can also be adjusted relative to the bridge deck 96 to meet the front-end hanging requirements of the main truss assembly 1 during travel. The reverse hanging wheel assembly 5 is installed on the lower surface of the bridge wing plate 97, forming a limiting fit with the second track 6 on the main truss assembly 1 to constrain the displacement of the main truss assembly 1. One end of the basket system 7 is connected to the main truss assembly 1 to support the pouring construction.

[0053] During pouring, the main hanger anchoring device 3 stably transmits the main truss assembly 1 and the pouring load. Combined with the contact action between the anti-hanging wheel assembly 5 and the second track 6, it effectively limits the forward tilting of the front end of the main truss assembly 1, ensuring the stability of the pouring process. During travel, the first track 4 suspends the front end of the main truss assembly 1, and the anti-hanging wheel assembly 5 and the second track 6 work together to achieve smooth forward movement of the main truss assembly 1. The suspended cantilever bridge-building machine eliminates the need for C-hooks at both ends of the rear upper crossbeam 2, optimizing the overall structure of the bridge-building machine. This allows it to adapt to highway bridge scenarios with small left-right spans, avoiding interference from C-hooks, improving the equipment's adaptability to different scenarios, and simplifying the structural layout while reducing structural design complexity.

[0054] According to one embodiment of this application, such as Figure 6 As shown, the anti-rollover wheel assembly 5 includes a mounting base 51, a connector 52, and a wheel body 53; wherein, the mounting base 51 is fixedly connected to the lower surface of the bridge wing plate 97; the number of connectors 52 is at least two and they are symmetrically installed on the mounting base 51; the number of wheel bodies 53 corresponds to the number of connectors 52 and they are installed at the free ends of the connectors 52; a receiving space 531 is formed between the two oppositely arranged wheel bodies 53. The second track 6 includes a track body 61 and a limiting plate 62; wherein, the lower part of the track body 61 is fixedly connected to the main truss assembly 1, and the upper part extends into the receiving space 531; the limiting plate 62 is connected to the upper part of the track body 61, and the wheel body 53 abuts against the limiting plate 62 to limit separation of the second track 6 from the anti-rollover wheel assembly 5.

[0055] The reverse-mounted wheel assembly 5 is fixed to the lower surface of the bridge wing plate 97 via the mounting base 51. The symmetrical arrangement of the connecting parts 52 ensures balanced force distribution and avoids unilateral force offset. The wheel body 53 is correspondingly installed at the end of the connecting part 52, forming a receiving space 531 for adapting to the second track 6. The track body 61 of the second track 6 is fixed to the main truss assembly 1 below the bridge deck 96, with its upper part extending into the receiving space 531 for engagement. The limiting plate 62 connects to the upper part of the track body 61 and forms a bidirectional limiting by abutting against the wheel body 53 to prevent separation. During pouring and traveling conditions, the force direction of the reverse-mounted wheel assembly 5 on the second track 6 is adjusted according to the switching of the bridge building machine's working conditions, precisely adapting to the two core needs of the bridge building machine: pouring and traveling.

[0056] The symmetrically arranged connectors 52 and wheels 53 ensure even stress distribution on the anti-hanging wheel assembly 5, preventing structural damage caused by localized stress concentration and extending the assembly's service life. The abutting fit between the limiting plate 62 and the wheels 53 stably restricts the separation of the second track 6 from the anti-hanging wheel assembly 5, ensuring the structural stability of the bridge-building machine under both working conditions. The downward pressure during pouring helps restrain the forward tilt of the main truss assembly 1, while the upward tension during travel helps the first track 4 suspend the front end of the main truss, assisting in the smooth movement of the main truss assembly 1. The overall structure is compact, requiring no additional space, suitable for highway bridges with small left-right spans, while simplifying the structural layout and reducing maintenance costs.

[0057] Furthermore, the cooperation between the anti-locking wheel assembly 5 and the second track 6 also has the following effects: First, since the mounting base 51 is pre-fixed to the lower surface of the bridge wing plate 97, the tension or pressure applied between the anti-roller assembly 5 and the second track 6 is in the vertical direction and is not affected by the tilt angle of the lower surface of the wing plate 97. There is no lateral horizontal component force, so the main truss assembly 1 will not move outward during travel, thus avoiding affecting the overall position of the structure. Furthermore, since the position of the mounting base 51 is stably fixed, the accuracy of the main truss's travel position can be ensured, preventing deviation.

[0058] Secondly, the cooperation between the anti-roller assembly 5 and the second track 6 can prevent the unevenness of the lower surface of the wing plate 97 from affecting the stability of the main truss assembly 1.

[0059] Third, the anti-roller assembly 5 is fixedly installed on the lower surface of the wing plate 97. When the main truss assembly 1 travels, the anti-roller assembly 5 and the second track 6 move directly relative to each other. The anti-roller assembly 5 is always fixedly installed on the lower surface of the wing plate 97 and does not move between it and the lower surface of the wing plate 97. This avoids possible damage to the lower surface of the wing plate 97.

[0060] According to one embodiment of this application, such as Figure 6As shown, the reverse gear assembly 5 also includes a fixed shaft 54 ​​and a connecting shaft 55; wherein, the fixed shaft 54 ​​passes through the fixing hole of the mounting base 51, and both ends extend out of the mounting base 51; the connecting shaft 55 is used to mount the wheel body 53, and one end extends out of the wheel body 53. The connecting member 52 is a connecting plate, and the connecting plate is provided with a first connecting hole 521 and a second connecting hole 522; the end of the fixed shaft 54 ​​extending out of the mounting base 51 is inserted into the first connecting hole 521, and the end of the connecting shaft 55 extending out of the wheel body 53 is inserted into the second connecting hole 522.

[0061] The fixed shaft 54 ​​passes through the fixing hole of the mounting base 51, extending at both ends to connect with the connecting plate, providing a stable installation support foundation for the connecting plate and the subsequent wheel 53. The connecting shaft 55 is used to assemble the wheel 53, with one end extending out of the wheel 53 and docking with the connecting plate, ensuring that the wheel 53 can rotate flexibly to adapt to the travel requirements of the bridge-building machine. The connecting plate, as the core connecting component 52, docks with the extended ends of the fixed shaft 54 ​​and the connecting shaft 55 respectively through the pre-set first connecting hole 521 and second connecting hole 522, achieving precise assembly of each component. In accordance with the overall requirement of symmetrical arrangement, it ensures that the reverse wheel assembly 5 is subjected to balanced force.

[0062] The symmetrically arranged connectors 52 and wheel bodies 53 ensure even stress distribution on the anti-hanging wheel assembly 5, preventing structural damage caused by localized stress concentration and extending the assembly's service life. The abutting fit between the limiting plate 62 and the wheel body 53 stably restricts the separation of the second track 6 from the anti-hanging wheel assembly 5, ensuring the structural stability of the bridge-building machine during both pouring and traveling operations. The downward pressure applied to the second track 6 during pouring helps restrain the forward tilt of the front end of the main truss assembly 1, while the upward tension during traveling, in conjunction with the first track 4, suspends the front end of the main truss, allowing the main truss assembly 1 to move smoothly.

[0063] For example, such as Figures 6 to 8 As shown, a reverse-mounted wheel assembly 5 includes a mounting base 51, a fixed shaft 54, two connecting plates (connectors 52), and four wheel bodies 53; as Figure 8 As shown, the connecting plate can be triangular, and the three apex positions are provided with rounded corners or chamfered corners; the upper part of the connecting plate is provided with a first connecting hole 521, and the lower part is provided with two second connecting holes 522, and the two second connecting holes 522 are at the same height.

[0064] In some embodiments, such as Figure 7 As shown, the mounting base 51 may specifically include two parts: a pad 511 and a base 512. The pad 511 is used to connect with the lower surface of the wing plate 97, and the base 512 is used to provide fixing holes for mounting the fixing shaft 54.

[0065] According to one embodiment of this application, such as Figure 1 and Figure 2As shown, the suspended cantilever bridge-building machine also includes a first drive mechanism 81, which is installed on the first track 4 and whose output end is connected to the rear upper crossbeam 2 to drive the rear upper crossbeam 2 to move relative to the first track 4.

[0066] The first drive mechanism 81 is mounted on the first track 4, and its output end is rigidly connected to the rear upper crossbeam 2. The first drive mechanism 81 drives the rear upper crossbeam 2 to generate relative displacement along the first track 4 by outputting power, and stops at the next pouring position to prepare for hoisting and fixing the main truss assembly 1 for pouring.

[0067] For example, the first drive mechanism 81 can adopt a gear and rack drive structure, with the rack fixed along the length of the first track 4, and the gear coaxially connected to the output end of the drive mechanism. Through the meshing transmission of the gear and rack, the smooth movement of the rear upper crossbeam 2 is achieved. Of course, the first drive mechanism 81 can also be in other forms, such as hydraulic drive, etc., and this application is not limited in this regard.

[0068] According to one embodiment of this application, such as Figure 3 As shown, the suspended cantilever bridge-building machine also includes a support and traveling mechanism 83 installed at the lower end of the rear upper crossbeam 2. The support and traveling mechanism 83 includes traveling wheels 831 and a support unit 832. The traveling wheels 831 are used to contact the first track 4 to facilitate the travel of the rear upper crossbeam 2. The support unit 832 is used to support the rear upper crossbeam 2 on the bridge deck 96 during pouring, so that the traveling wheels 831 are separated from the first track 4. The support unit 832 can be a hydraulic device such as a jack.

[0069] The supporting traveling mechanism 83 is integrated into the lower end of the rear upper crossbeam 2 to realize the switching of the bridge building machine's working conditions and to form an action coordination with the first track 4 and the first drive mechanism 81. In the traveling condition, the traveling wheel 831 contacts the surface of the first track 4, receives the power transmission of the first drive mechanism 81, and drives the rear upper crossbeam 2 to move along the first track 4; in the pouring condition, the supporting unit 832 extends and acts on the bridge deck 96, and by lifting the rear upper crossbeam 2, the traveling wheel 831 is completely separated from the first track 4, and the supporting unit 832 bears the load transmitted by the rear upper crossbeam 2 during pouring, realizing the precise switching between the two working conditions.

[0070] During the pouring process, the support unit 832 directly supports the bridge deck 96, completely separating the traveling wheel 831 from the first track 4. This prevents the pouring load from acting on the traveling wheel 831 and the track transmission structure, reduces component wear, and improves the overall structural stability of the bridge-building machine. The surface contact between the traveling wheel 831 and the first track 4 ensures the smoothness of the movement of the rear upper crossbeam 2.

[0071] According to one embodiment of this application, such as Figure 2As shown, the suspended cantilever bridge-building machine also includes a first suspension mechanism 91 and a second drive mechanism 82; wherein, during the travel of the main truss assembly 1, the lower end of the first suspension mechanism 91 is connected to the front end of the main truss assembly 1; the second drive mechanism 82 is installed on the first track 4, and its output end is connected to the upper end of the first suspension mechanism 91.

[0072] The first suspension mechanism 91 is the core supporting structure for the main truss assembly 1 during travel. It primarily connects to the main truss assembly 1 during travel. The upper end of the first suspension mechanism 91 connects to the second drive mechanism 82, and the lower end connects to the front end of the main truss assembly 1, bearing the load from the front end. The second drive mechanism 82 is installed on the first track 4 and drives the first suspension mechanism 91 to move linearly along the first track 4 through output power, thereby tractioning the front end of the main truss assembly 1 to move synchronously. Combined with the limiting effect of the anti-roller assembly 5 and the second track 6, it ensures the smooth travel of the main truss assembly 1 as a whole. The second drive mechanism 82 has the same transmission method as the first drive mechanism 81.

[0073] The first suspension mechanism 91 can stably bear the load at the front end of the main truss assembly 1, forming two suspensions at the front and rear with the anti-hanging wheel assembly 5, so that the force on the main truss assembly 1 is more balanced when it travels, and the overall travel stability is improved.

[0074] For example, the second drive mechanism 82 can adopt a rack and pinion transmission, which can realize precise displacement control of the first suspension mechanism 91, drive the front end of the main truss assembly 1 to move smoothly, and ensure the positioning accuracy of the movement. Of course, the second drive mechanism 82 can also be in other forms, such as hydraulic drive, etc., and this application is not limited in this regard.

[0075] The first drive mechanism 81 and the second drive mechanism 82 share the rack of the first track 4, which simplifies the structural layout of the track and eliminates the need for additional transmission components.

[0076] After the main truss assembly 1 has completed its journey and the main hanger anchoring device 3 has been reinstalled, the first hanging mechanism 91 is removed.

[0077] According to one embodiment of this application, such as Figure 3 As shown, the suspended cantilever bridge-building machine also includes a second suspension mechanism 92 and a third suspension mechanism 93; wherein, the upper end of the second suspension mechanism 92 is connected to the middle position of the main truss assembly 1 along the bridge direction, and the lower end is connected to the rear end of the bottom basket system 7; the upper end of the third suspension mechanism 93 is connected to the bottom of the bridge, and the lower end is connected to the rear end of the bottom basket system 7; and it is dismantled before the main truss assembly 1 travels.

[0078] The second suspension mechanism 92 serves as the support structure for the basket system 7, achieving a fixed connection between the main truss assembly 1 and the rear end of the basket system 7. The third suspension mechanism 93 also serves as the support structure for the basket system 7, obtaining support points at the bottom of the bridge. It works in conjunction with the second suspension mechanism 92 to support the rear end of the basket system 7, further distributing the load. The third suspension mechanism 93 is only activated during the pouring process and is dismantled before the main truss assembly 1 begins to move, avoiding interference with the movement of the main truss assembly 1 and coordinating its movement with the overall traveling mechanism.

[0079] According to one embodiment of this application, such as Figure 4 As shown, the main truss assembly 1 includes two main truss units 11 and a front upper crossbeam 12; wherein, the two main truss units 11 are respectively arranged on both sides of the bridge; the front upper crossbeam 12 extends along the transverse direction of the bridge and is connected to the two main truss units 11 at both ends respectively.

[0080] Correspondingly, the main hanger anchoring device 3, the first track 4, the reverse hanging wheel assembly 5, and each hanging mechanism can be set into two sets to adapt to the main truss unit 11.

[0081] The main truss assembly 1 serves as the core load-bearing structure of the bridge-building machine. Two main truss units 11 are symmetrically arranged in the space below the bridge on both sides, bearing the loads of components such as the bottom basket system 7. The front upper crossbeam 12 extends along the transverse direction of the bridge, precisely connecting the front ends of the two main truss units 11, linking the separate main truss units 11 into an integral frame, strengthening the structural rigidity and torsional resistance of the assembly, and providing a stable structural support foundation for the bridge-building machine during various working conditions such as pouring and traveling.

[0082] According to one embodiment of this application, such as Figure 4 As shown, the suspended cantilever bridge-building machine also includes a fourth suspension mechanism 94 and a fifth suspension mechanism 95; wherein, the upper end of the fourth suspension mechanism 94 is connected to the front end of the main truss assembly 1, and the lower end is connected to the front end of the bottom basket system 7; the upper end of the fifth suspension mechanism 95 is connected to the front end (front upper crossbeam 12) of the main truss assembly 1, and the lower end is connected to the front end of the bottom basket system 7.

[0083] For example, the upper end of the fourth suspension mechanism 94 is connected to the front end of the main truss unit 11, and the upper end of the fifth suspension mechanism 95 is connected to the front upper crossbeam 12.

[0084] The fourth and fifth suspension mechanisms 94 and 95 are the core supporting structures at the front end of the basket system 7, forming a coordinated supporting layout with the second and third suspension mechanisms 92 and 93 at the rear end. The fourth suspension mechanism 94 obtains support from the front end of the main truss unit 11, while the fifth suspension mechanism 95 is arranged based on the upper front crossbeam 12 connecting the two main truss units 11. Both mechanisms simultaneously bear the load at the front end of the basket system 7, transferring the load to the main truss unit 11 and the upper front crossbeam 12 respectively, thus achieving the distributed transfer of the load at the front end of the basket system 7 and providing a stable supporting foundation for the pouring process.

[0085] According to one embodiment of this application, such as Figure 9 As shown, the main hanger anchoring device 3 includes: a steel bar 31, a clamping seat 32, and a pin 33; wherein, the upper end of the steel bar 31 is fixed to the rear upper crossbeam 2, and the lower end extends downward through the bridge deck 96; the clamping seat 32 is fixed to the lower end of the steel bar 31; the clamping seat 32 is provided with a first through hole; the upper part of the main truss assembly 1 has a second through hole, and the pin 33 passes through the first through hole and the second through hole to connect the clamping seat 32 and the main truss assembly 1.

[0086] The main hanger anchoring device 3 is the core load transfer structure during the pouring process. The steel bar 31 serves as the core force transmission component. Its upper end is rigidly fixed to the rear upper crossbeam 2, and its lower end extends downward through the bridge deck 96 and is fixed to the clamping seat 32, forming an integrated force transmission carrier across the bridge deck 96. After the first through hole of the clamping seat 32 is precisely aligned with the second through hole on the upper part of the main truss assembly 1, the two are rigidly connected by a pin 33. The pouring load, its own weight, and the load of the bottom basket system 7 borne by the main truss assembly 1 are sequentially transferred to the rear upper crossbeam 2 through the pin 33, clamping seat 32, and steel bar 31, and finally distributed to the bridge deck 96.

[0087] According to one embodiment of this application, such as Figure 3 As shown, the rear upper crossbeam 2 is provided with a protruding section 21 to increase the distance between the rear upper crossbeam 2 and the bridge deck 96.

[0088] The upper rear crossbeam 2 has an upward-protruding section 21 in the key area for passage on the bridge deck 96. By locally raising the structure, the vertical clearance between the upper rear crossbeam 2 and the bridge deck 96 is increased, creating a dedicated clearance space. The form of the protruding section 21 does not change the connection and cooperation between the upper rear crossbeam 2 and the first track 4 and the first drive mechanism 81, nor does it affect its core function of load transfer. It only solves the problem of space obstruction for passage on the bridge deck 96 through local structural adjustments, adapting to the passage requirements for personnel and machinery movement and material transfer during construction.

[0089] The partial heightening design of the raised section 21 effectively increases the vertical passage space between the rear upper crossbeam 2 and the bridge deck 96, forming an unobstructed passageway. This facilitates the back-and-forth operation of construction personnel and the transfer of materials after hoisting, improving the operational convenience of bridge deck 96 construction. The one-piece molded raised section 21 structure ensures the overall load-bearing performance of the rear upper crossbeam 2, does not change the original load transmission path, and can withstand the transmission reaction force of the first drive mechanism 81 and the load of the anchoring device. This design does not require additional space on the bridge deck 96, meets the requirements of the compact layout of the bridge construction machine, and does not affect the non-interference characteristics of the dual-machine construction of the left and right spans of the bridge.

[0090] According to one embodiment of this application, such as Figure 3 As shown, along the transverse direction of the bridge, the length of the upper rear crossbeam 2 is less than the width of the bridge deck 96.

[0091] The rear upper crossbeam 2 is shortened to fit the 96-degree width of the bridge deck in the transverse direction, with the lateral space occupied adapting to the effective construction range of the 96-degree bridge deck, and safety gaps reserved at both ends. For the construction scenarios of left and right lane highway bridges, when one bridge-building machine is deployed on each lane, the shortened rear upper crossbeam 2 has no lateral extension. Combined with the structural design of the bridge-building machine without C-hooks, it avoids structural interference between adjacent equipment in terms of lateral dimensions, supporting simultaneous construction by two machines.

[0092] A bridge manufacturing method according to a second aspect of this application, such as Figure 16 As shown, the bridge manufacturing method uses the aforementioned suspended cantilever bridge-building machine, including: performing a first pour at the initial position; removing the first track 4 and reinstalling the first track 4 at a preset position at the front of the bridge to suspend the front end of the main truss assembly 1; removing the reverse hanger assembly 5 and reinstalling the reverse hanger assembly 5 at a preset position at the front of the bridge to suspend the rear end of the main truss assembly 1; removing the device restricting the movement of the main truss assembly 1; moving the main truss assembly 1 forward to the second pouring position; installing the main hanger anchoring device 3 between the rear upper crossbeam 2 and the main truss assembly 1; and performing a second pour.

[0093] The aforementioned bridge manufacturing method utilizes a suspended cantilever bridge-building machine without C-hooks for cantilever casting, with "casting-removal-travel-installation-recasting" as the core process. After the initial casting is completed, the track and anti-hanging wheel assembly 5 are removed and re-laid. After the travel restrictions are lifted, the main truss assembly 1 is pulled by the drive mechanism to travel. Once in place, the main hanger anchoring device 3 is installed to ensure the stress stability of the secondary casting and achieve continuous cantilever casting of bridge segments.

[0094] According to one embodiment of this application, before removing the anti-hanging wheel assembly 5 and reinstalling it at a preset position at the front of the bridge to suspend the rear end of the main truss assembly 1, the method further includes: installing a first suspension mechanism 91. The main truss assembly 1 moves forward to the second pouring position, including: a second drive mechanism 82 driving the main truss assembly 1 forward to the second pouring position via the first suspension mechanism 91.

[0095] Before removing the track and anti-roller assembly 5, the first suspension mechanism 91 is installed to take over the load at the front end of the main truss assembly 1 in advance, replacing part of the load-bearing function of the original support structure. This provides load-bearing assurance for the subsequent unsupported operation of removing the track and anti-roller assembly 5, avoids instability at the front end of the main truss assembly 1, and ensures the smooth progress of subsequent removal and travel procedures.

[0096] According to one embodiment of this application, before the second pouring, the process further includes: dismantling the first hanging mechanism 91; moving the first track 4 backward; and performing material hoisting operations.

[0097] The above series of steps are the core preparatory procedures before the secondary pouring, connecting the installation of the main hanger anchoring device 3 with the secondary pouring construction. First, the first hanging mechanism 91, which serves as a temporary support, is removed to remove its restriction on subsequent operations. Then, the first drive mechanism 81 is used to drive the first track 4 to move backward, actively avoiding the space above the front of the main truss assembly 1, eliminating structural obstruction, and providing a sufficient and unobstructed operating area for the hoisting of materials required for pouring.

[0098] For example, the relocation of the first track 4 can be achieved by: removing the first track 4 and then reinstalling it in the position it was in during the last pouring, thus completing the relocation of the first track 4. When removing the first hanging mechanism 91, the second drive mechanism 82 can be removed simultaneously.

[0099] According to one embodiment of this application, before installing the main hanger anchoring device 3 between the rear upper crossbeam 2 and the main truss assembly 1, the method further includes: a first drive mechanism 81 driving the rear upper crossbeam 2 forward; during the installation of the main hanger anchoring device 3 between the rear upper crossbeam 2 and the main truss assembly 1, the method further includes: installing a third suspension mechanism 93 located between the bottom basket system 7 and the bottom of the bridge.

[0100] Relying on the gear and rack meshing transmission of the first drive mechanism 81, the rear upper crossbeam 2 is driven to move forward precisely, so that it is precisely aligned with the anchoring installation position of the main truss assembly 1, laying the foundation for the smooth installation of the subsequent main hanger anchoring device 3.

[0101] During the installation of the main hanger anchoring device 3, the third hanging mechanism 93 is installed simultaneously, so that the rear end of the bottom basket system 7 obtains the auxiliary bearing point at the bottom of the bridge, forming a coordinated upper and lower force structure with the main hanger anchoring device 3, and constructing a stable force system before pouring.

[0102] In some embodiments, the rear upper crossbeam 2 can move forward synchronously with the main truss assembly 1, or the main truss assembly 1 can move forward first, and then the rear upper crossbeam 2 can move forward.

[0103] According to one embodiment of this application, before the first drive mechanism 81 drives the upper rear crossbeam 2 forward, the method further includes: the support unit 832 in the support traveling mechanism 83 retracts, so that the traveling wheel 831 contacts the first track 4.

[0104] Taking advantage of the dual-function characteristics of the supporting traveling mechanism 83, the control unit 832 is retracted, releasing its support for the bridge deck 96 of the rear upper crossbeam 2, so that the overall load of the rear upper crossbeam 2 is smoothly transferred to the traveling wheel 831. After the traveling wheel 831 makes precise contact with the first track 4, it provides a force basis for the gear and rack meshing transmission of the first drive mechanism 81, ensuring that the power can be effectively transmitted during driving, driving the rear upper crossbeam 2 to move forward smoothly, and paving the way for the alignment work of the subsequent main hanger anchoring device 3 installation.

[0105] According to one embodiment of this application, removing the device that restricts the movement of the main truss assembly 1 includes: removing the third suspension mechanism 93 between the bottom basket system 7 and the bottom of the bridge, and removing the main hanger anchoring device 3 between the rear upper crossbeam 2 and the main truss assembly 1.

[0106] The third suspension mechanism 93 and the main hanger anchoring device 3 restrict the movement of the main truss assembly 1. The above-mentioned constraint release operation is performed before the main truss assembly 1 moves to avoid affecting the movement of the main truss assembly 1.

[0107] The following example illustrates the overall process of bridge manufacturing, such as Figure 17 As shown: First, pour the first layer of concrete at the initial position; for example... Figure 1 As shown; 2. Remove the first track 4 and reinstall the first track 4 at the pre-set position in front of the bridge; 3. Install the first suspension mechanism 91 to suspend the front end of the main truss assembly 1; IV. Remove the anti-rollover wheel assembly 5 and reinstall it at the pre-set position at the front of the bridge; such as Figure 2 As shown; 5. Dismantle the third suspension mechanism 93 between the bottom basket system 7 and the bottom of the bridge, and remove the main hanger anchoring device 3 between the upper crossbeam 2 and the main truss assembly 1; at this time, the reverse hanger assembly 5 provides tension to the second track 6; as Figure 10 As shown; VI. The second drive mechanism 82 drives the main truss assembly 1 forward via the first suspension mechanism 91; as shown... Figure 11 As shown; 7. The support unit 832 in the supporting traveling mechanism 83 retracts, so that the traveling wheel 831 contacts the first track 4 for travel; 8. The first drive mechanism 81 drives the rear upper crossbeam 2 forward; as... Figure 12 As shown; (in some cases, the rear upper crossbeam 2 can advance together with the main truss assembly 1, that is, step seven can be performed simultaneously with step five). 9. After installation, the main hanger anchoring device 3 between the upper crossbeam 2 and the main truss assembly 1 is installed, and the third suspension mechanism 93 located between the bottom basket system 7 and the bottom of the bridge is installed; at this time, the reverse hanger assembly 5 does not apply pressure or tension to the second track 6; such as Figure 13 As shown; 10. Dismantle the first hanging mechanism 91 (the second drive mechanism 82 can be dismantled simultaneously); 11. The first track 4 is moved backward; as... Figure 14 As shown; 12. Conduct material hoisting operations; Thirteen, the second pouring is carried out (at this time, the anti-roller assembly 5 applies pressure to the second track 6).

[0108] By repeating the above steps, the bridge can be manufactured.

[0109] Finally, it should be noted that the above embodiments are only used to illustrate this application and are not intended to limit this application. Although this application has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of this application do not depart from the spirit and scope of the technical solutions of this application and should be covered within the scope of the claims of this application.

Claims

1. A suspended cantilever bridge-building machine, characterized in that, include: The main truss assembly (1) is located below the bridge deck (96) of the bridge; The rear upper crossbeam (2) is set above the bridge deck (96) of the bridge; The main hanger anchoring device (3) passes through the bridge deck (96) during the pouring process, and its upper and lower ends are respectively connected to the rear upper crossbeam (2) and the main truss assembly (1); The first track (4) is set above the bridge deck (96) of the bridge to support the rear upper crossbeam (2); the first track (4) is adjustable in installation position to provide a suspending force to the front end of the main truss assembly (1) when the main truss assembly (1) is traveling; The anti-rollover wheel assembly (5) is installed on the lower surface of the bridge wing plate (97); The second track (6) is installed on the main truss assembly (1) and is in a limiting cooperation with the anti-roller assembly (5); The bottom basket system (7) is connected to the main truss assembly (1).

2. The suspended cantilever bridge-building machine according to claim 1, characterized in that, The anti-rollover assembly (5) includes: Mounting base (51) is fixedly connected to the lower surface of the bridge wing plate (97); Connectors (52), numbering at least two, are symmetrically mounted on the mounting base (51); Wheels (53) are numbered corresponding to the connectors (52) and are installed on the free end of the connectors (52); a receiving space (531) is formed between two oppositely arranged wheels (53). The second orbital (6) includes: The track body (61) is fixedly connected to the main truss assembly (1) at the bottom and extends into the receiving space (531) at the top; A limiting plate (62) is connected to the upper part of the track body (61), and the wheel body (53) abuts against the limiting plate (62) to limit the separation of the second track (6) from the anti-roll wheel assembly (5).

3. The suspended cantilever bridge-building machine according to claim 2, characterized in that, The anti-roller assembly (5) also includes: A fixed shaft (54) is inserted into the fixing hole of the mounting base (51), and both ends extend out of the mounting base (51). A connecting shaft (55) is used to mount the wheel body (53), and one end extends out of the wheel body (53). The connector (52) is a connecting plate, which is provided with a first connecting hole (521) and a second connecting hole (522); the fixed shaft (54) extends out of the end of the mounting base (51) and is inserted into the first connecting hole (521), and the connecting shaft (55) extends out of one end of the wheel body (53) and is inserted into the second connecting hole (522).

4. The suspended cantilever bridge-building machine according to claim 1, characterized in that, The suspended cantilever bridge-building machine also includes a first drive mechanism (81), which is installed on the first track (4) and its output end is connected to the rear upper crossbeam (2) to drive the rear upper crossbeam (2) to move relative to the first track (4).

5. The suspended cantilever bridge-building machine according to claim 4, characterized in that, The suspended cantilever bridge-building machine also includes a support and travel mechanism (83) installed at the lower end of the rear upper crossbeam (2), the support and travel mechanism (83) comprising: The running wheels (831) are used to contact the first track (4) to facilitate the movement of the rear upper crossbeam (2); Support unit (832) is used to support the rear upper crossbeam (2) on the bridge deck (96) during pouring, so that the running wheel (831) is separated from the first track (4).

6. The suspended cantilever bridge-building machine according to claim 1, characterized in that, The suspended cantilever bridge-building machine also includes: The lower end of the first suspension mechanism (91) is connected to the front end of the main truss assembly (1) during the movement of the main truss assembly (1). The second drive mechanism (82) is installed on the first track (4), and its output end is connected to the upper end of the first hanging mechanism (91).

7. The suspended cantilever bridge-building machine according to claim 1, characterized in that, The suspended cantilever bridge-building machine also includes: The second suspension mechanism (92) is connected at the middle position of the main truss assembly (1) at its upper end and at the rear end of the bottom basket system (7) at its lower end. The third suspension mechanism (93) is connected at its upper end to the bottom of the bridge and at its lower end to the rear end of the bottom basket system (7); and is removed before the main truss assembly (1) travels.

8. The suspended cantilever bridge-building machine according to claim 1, characterized in that, The main truss assembly (1) includes: Two main truss units (11) are respectively installed on both sides of the bridge; The front upper crossbeam (12) extends along the transverse direction of the bridge and is connected at both ends to the two main truss units (11).

9. The suspended cantilever bridge-building machine according to claim 8, characterized in that, The suspended cantilever bridge-building machine also includes: The fourth suspension mechanism (94) is connected at its upper end to the front end of the main truss unit (11) and at its lower end to the front end of the bottom basket system (7); The fifth hanging mechanism (95) is connected at its upper end to the front upper crossbeam (12) and at its lower end to the front end of the bottom basket system (7).

10. The suspended cantilever bridge-building machine according to any one of claims 1 to 9, characterized in that, The main hanger anchoring device (3) includes: The upper end of the steel bar (31) is fixed to the rear upper crossbeam (2), and the lower end extends downward through the bridge deck (96); A clamping seat (32) is fixed to the lower end of the steel rod (31); the clamping seat (32) is provided with a first through hole; The pin (33) has a second through hole on the upper part of the main truss assembly (1). The pin (33) passes through the first through hole and the second through hole to connect the clamping seat (32) and the main truss assembly (1).

11. The suspended cantilever bridge-building machine according to any one of claims 1 to 9, characterized in that, The rear upper crossbeam (2) is provided with a protruding section (21) to increase the distance between the rear upper crossbeam (2) and the bridge deck (96).

12. The suspended cantilever bridge-building machine according to any one of claims 1 to 9, characterized in that, Along the transverse direction of the bridge, the length of the rear upper crossbeam (2) is less than the width of the bridge deck (96).

13. A bridge manufacturing method, characterized in that, Using the suspended cantilever bridge-building machine as described in any one of claims 1 to 12, comprising: The first pour is made at the initial position; Remove the first track (4) and reinstall the first track (4) at a preset position at the front of the bridge to suspend the front end of the main truss assembly (1); Remove the anti-hanging wheel assembly (5) and reinstall the anti-hanging wheel assembly (5) at a preset position at the front of the bridge to suspend the rear end of the main truss assembly (1); Remove the device that restricts the movement of the main truss assembly (1); The main truss assembly (1) moves forward to the second pouring position; After installation, the main hanger anchorage device (3) is installed between the upper crossbeam (2) and the main truss assembly (1). The second pouring is then carried out.

14. The bridge manufacturing method according to claim 13, characterized in that, Before removing the anti-hanging wheel assembly (5) and reinstalling it at a predetermined position at the front of the bridge to suspend the rear end of the main truss assembly (1), the following steps are also included: Install the first suspension mechanism (91); The main truss assembly (1) moves forward to the second pouring position, including: The second drive mechanism (82) drives the main truss assembly (1) forward to the second pouring position through the first hanging mechanism (91).

15. The bridge manufacturing method according to claim 14, characterized in that, Prior to the second pouring, the following is also included: Dismantle the first suspension mechanism (91); The first track (4) moves backward; Material hoisting operations are being carried out.

16. The bridge manufacturing method according to claim 13, characterized in that, Before the main hanger anchoring device (3) between the installed upper crossbeam (2) and the main truss assembly (1), the following is also included: The first drive mechanism (81) drives the rear upper crossbeam (2) forward; During the installation of the main hanger anchorage device (3) between the upper crossbeam (2) and the main truss assembly (1), the following is also included: Install a third suspension mechanism (93) located between the basket system (7) and the bottom of the bridge.

17. The bridge manufacturing method according to claim 16, characterized in that, Before the first drive mechanism (81) drives the upper rear crossbeam (2) forward, the following is also included: The support unit (832) in the supporting traveling mechanism (83) retracts, causing the traveling wheel (831) to contact the first track (4).

18. The bridge manufacturing method according to any one of claims 13 to 17, characterized in that, The device for removing the restriction on the movement of the main truss assembly (1) includes: Remove the third suspension mechanism (93) between the bottom basket system (7) and the bottom of the bridge, and remove the main hanger anchorage device (3) between the rear upper crossbeam (2) and the main truss assembly (1).

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