Movable connection type main truss structure and cantilever bridge fabrication machine

Abstract

The utility model discloses a movable connection type main truss structure and a cantilever bridge fabrication machine. The main truss structure comprises a vertical rod, a horizontal rod, a rear inclined rod and a front inclined rod. The upper end of the vertical rod is connected with the horizontal rod, the lower end of the vertical rod is hinged to the lower end of the rear inclined rod and the lower end of the front inclined rod, the upper end of the rear inclined rod is connected with the rear end of the horizontal rod, and the upper end of the front inclined rod is connected with the front end of the horizontal rod. The horizontal rods, the rear inclined rods and the front inclined rods jointly form a main truss body of an inverted triangle structure. The movable connection type main truss structure and the cantilever bridge fabrication machine are compact in structure, convenient to disassemble and assemble, high in structural strength and high in turnover utilization rate, the construction requirements of bridges with different lengths and different section heights are met, and the problem that in the prior art, due to the fact that a main truss is integrally welded, the use requirements of different bridge types cannot be met is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge construction, and in particular relates to a movable connection type main truss structure and a cantilever bridge-building machine suitable for bridge construction. Background Art

[0002] Cantilever casting construction refers to a construction method that uses special equipment to symmetrically and balancedly cast concrete beams in sections toward the middle of the span on both sides of the bridge with the pier as the center, and applies prestress in sections. The hanging basket is a special equipment that can be moved forward section by section to bear the deadweight and construction load of the beam when the concrete beam is cast by the cantilever method. The cantilever bridge-building machine is a type of hanging basket, and its structural feature is that the main load-bearing rods are located below the beam surface.

[0003] In the existing cantilever bridge-building machine structure, the main truss is the main carrier for concrete load transmission during pouring construction. Its structural form and size determine the applicable scope of the bridge-building machine. At present, the following problems still exist:

[0004] Firstly, as a welded whole, the main truss can only be adapted to bridges within a certain length range. For example, the main truss structure of a cantilever bridge-building machine with a longest section of 4m cannot be applied to a bridge with a longest section of 5m. If a longer bridge is encountered, a new main truss needs to be made, which increases the cost of use;

[0005] Secondly, since the cross-sectional height of the bridge varies, in bridges with smaller cross-sectional heights, the main truss may interfere with the rear crossbeam of the bottom basket, which limits the use of the same cantilever bridge-building machine in different bridge types. Utility Model Content

[0006] In view of the shortcomings of the prior art, the utility model provides a movable connection type main truss structure and a cantilever bridge-building machine with compact structure, convenient assembly and disassembly, high structural strength and high turnover utilization rate, which meets the construction requirements of bridges of different lengths and different cross-sectional heights, and solves the problem in the prior art that the main truss cannot adapt to the use requirements of different bridge types due to the overall welding of the main truss. To achieve the above purpose, the utility model can adopt the following technical solutions:

[0007] A movable connection type main truss structure comprises: a vertical rod, a horizontal rod, a rear diagonal rod and a front diagonal rod; the upper end of the vertical rod is connected to the horizontal rod, the lower end of the vertical rod is hinged to the lower end of the rear diagonal rod and the lower end of the front diagonal rod respectively, the upper end of the rear diagonal rod is connected to the rear end of the horizontal rod, and the upper end of the front diagonal rod is connected to the front end of the horizontal rod; the horizontal rod, the rear diagonal rod and the front diagonal rod together form a main truss body of an inverted triangle structure.

[0008] As a further improvement of the present invention, the horizontal rod comprises a rear horizontal rod and a front horizontal rod, and the front end of the rear horizontal rod and the rear end of the front horizontal rod are respectively connected to the upper ends of the vertical rods.

[0009] As a further improvement of the present invention, a plurality of movable connection points are provided at intervals along the horizontal direction at the rear end of the rear horizontal rod and / or the front end of the front horizontal rod. By replacing the rear diagonal rod and / or the front diagonal rod with different lengths and changing the connection between the rear diagonal rod and / or the front diagonal rod and different movable connection points, the bridge can be adapted to different types of bridges.

[0010] As a further improvement of the utility model, a rear connecting seat is provided at the upper end of the rear oblique rod, the movable connecting point adopts a pin shaft hole, and the rear connecting seat and the pin shaft hole are fixedly connected by a pin shaft.

[0011] As a further improvement of the utility model, a front connecting seat is provided at the upper end of the front oblique rod, the movable connecting point adopts a pin shaft hole, and the front connecting seat and the pin shaft hole are fixedly connected by a pin shaft.

[0012] As a further improvement of the utility model, a hanging member is movably provided on the vertical rod, and the hanging member is used to connect the rear end of the bottom basket to achieve the lifting and lowering of the rear end of the bottom basket along the vertical rod.

[0013] As a general technical concept, the utility model also provides a cantilever bridge-building machine, including: a shoulder pole beam, a main hanger, a bottom basket, a C-shaped hook, a rear upper crossbeam and a connecting component; the rear upper crossbeam is arranged on the top of the bridge, and the two ends of the rear upper crossbeam are respectively connected to the C-shaped hooks; shoulder pole beams are symmetrically arranged on both sides of the rear upper crossbeam, one end of the connecting component is connected to the shoulder pole beam, and the other end of the connecting component is connected to the main hanger, and the main hanger is used to connect the movable connection type main truss structure to realize the movable connection type main truss structure symmetrically arranged on both sides of the bridge, and the movable connection type main truss structure is connected to the bottom basket.

[0014] As a further improvement of the utility model, it also includes a rear fulcrum cylinder, which is located on the node at the rear end of the rear horizontal rod. The rear fulcrum cylinder is respectively connected to the rear horizontal rod and the bridge, so as to realize the load transfer from the rear end of the movable connection type main truss structure to the bridge.

[0015] As a further improvement of the utility model, it also includes a front upper cross beam, which is located on the node at the front end of the front horizontal rod. The front end of the bottom basket is connected to the front upper cross beam through a suspension rod, and the rear end of the bottom basket is connected to the vertical rod.

[0016] As a further improvement of the utility model, it also includes a supporting component, and the rear upper cross beam is installed on the top of the bridge through the supporting component.

[0017] Compared with the prior art, the advantages of the utility model are:

[0018] The movable connection type main truss structure of the utility model is characterized by that the vertical rod, the horizontal rod, the rear diagonal rod and the front diagonal rod are set as independently used rods, and the upper end of the vertical rod is connected to the horizontal rod, the two sides of the lower end of the vertical rod are respectively connected to the lower end of the rear diagonal rod and the lower end of the front diagonal rod, the upper end of the rear diagonal rod is connected to the rear end of the horizontal rod, and the upper end of the front diagonal rod is connected to the front end of the horizontal rod. The horizontal rod, the rear diagonal rod and the front diagonal rod together form a main truss body of an inverted triangle structure, which has the characteristics of convenient disassembly and transportation, high flexibility in use and high structural stability. Further, when it is necessary to convert the movable connection type main truss structure between different types of bridges, it is only necessary to replace the front diagonal rod or the rear diagonal rod of the corresponding length, change the movable connection position of the upper end of the front diagonal rod and the front end of the front horizontal rod, or change the movable connection position of the upper end of the rear diagonal rod and the rear end of the rear horizontal rod, so as to change the length of the front end or the rear end of the movable connection type main truss structure to match the production requirements of bridges with different lengths and different cross-sectional heights. It not only solves the problem in the prior art that the main truss cannot adapt to the use requirements of different bridge types due to the overall welding of the main truss, but also improves the utilization rate of materials and reduces the construction cost.

[0019] The cantilever bridge-building machine disclosed in the utility model comprises the above-mentioned movable connection type main truss structure, and thus also has the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structural principle of the movable connection type main truss structure in Example 1 of the utility model;

[0021] Figure 2 This is a schematic diagram of the main structural principle of the cantilever bridge-building machine in Example 2 of the utility model;

[0022] Figure 3 It is a schematic diagram of the side view structure principle of the cantilever bridge-building machine in Example 2 of the utility model;

[0023] Figure 4 This is a schematic diagram of the structural principle of the cantilever bridge-building machine in Example 2 of the utility model applied to a bridge with the longest section being a; wherein a=4000mm;

[0024] Figure 5 This is a schematic diagram of the structural principle of the cantilever bridge-building machine in Example 2 of the utility model applied to a bridge with the longest section being b; wherein b=5000mm;

[0025] Figure 6 This is a schematic diagram of the structural principle of the cantilever bridge-building machine in Example 2 of the utility model, in which the bottom basket is located at different positions;

[0026] Legend: 1. Vertical rod; 2. Rear horizontal rod; 3. Front horizontal rod; 4. Rear diagonal rod; 5. Front diagonal rod; 6. Rear connecting seat; 7. Front connecting seat; 8. Pin hole; 9. Pin seat; 91. First pin seat; 92. Second pin seat; 93. Third pin seat; 94. Fourth pin seat; 100. Movable main truss structure; 101. Hanging piece; 110. Rear fulcrum cylinder; 120. Shoulder pole beam; 130. Main hanger; 140. Front upper cross beam; 150. Hanging rod; 160. Bottom basket; 170. Pin; 180. C-hook; 190. Rear upper cross beam; 111. Connecting component; 112. Support component; 200. Bridge. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings and specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0028] In the description of the present invention, it should be understood that the terms "side", "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0030] Example 1

[0031] like Figure 1 As shown, the movable connection type main truss structure of the utility model comprises: a vertical rod 1, a horizontal rod, a rear diagonal rod 4 and a front diagonal rod 5; the upper end of the vertical rod 1 is connected to the horizontal rod, the lower end of the vertical rod 1 is hinged to the lower end of the rear diagonal rod 4 and the lower end of the front diagonal rod 5 respectively, the upper end of the rear diagonal rod 4 is connected to the rear end of the horizontal rod, and the upper end of the front diagonal rod 5 is connected to the front end of the horizontal rod; the horizontal rod, the rear diagonal rod 4 and the front diagonal rod 5 together form a main truss body of an inverted triangle structure, which has the characteristics of compact structure, high structural strength, strong bearing capacity, etc.

[0032] In this embodiment, the horizontal rods include a rear horizontal rod 2 and a front horizontal rod 3, and the front end of the rear horizontal rod 2 and the rear end of the front horizontal rod 3 are respectively connected to the upper ends of the vertical rods 1.

[0033] Furthermore, a plurality of movable connection points are provided at intervals along the horizontal direction at the rear end of the rear horizontal rod 2 and / or the front end of the front horizontal rod 3. By replacing the rear diagonal rod 4 and / or the front diagonal rod 5 with different lengths and changing the connection between the rear diagonal rod 4 and / or the front diagonal rod 5 and different movable connection points, it is possible to achieve suitability for different types of bridges.

[0034] like Figure 1 As shown, in the present embodiment, both sides of the upper end of the vertical bar 1 are movably connected with the front end of the rear horizontal bar 2 and the rear end of the front horizontal bar 3 through the pin seat 9, and both sides of the lower end of the vertical bar 1 are movably connected with the lower end of the rear diagonal bar 4 and the lower end of the front diagonal bar 5 through the pin seat 9, respectively. The upper end of the rear diagonal bar 4 is movably connected with the rear end of the rear horizontal bar 2 through the rear connecting seat 6, and the upper end of the front diagonal bar 5 is movably connected with the front end of the front horizontal bar 3 through the front connecting seat 7. When the length of the front diagonal bar 5 is changed, the movable connection position of the upper end of the front diagonal bar 5 and the front end of the front horizontal bar 3 is changed to be suitable for different types of bridges. It can be understood that in other embodiments, the rear diagonal bar 4 and the front diagonal bar 5 can also be set to the same size to achieve sharing.

[0035] In this embodiment, a rear connecting seat 6 is provided at the upper end of the rear oblique rod 4, and a pin hole 8 is used as a movable connecting point. The rear connecting seat 6 and the pin hole 8 are fixedly connected by a pin.

[0036] In this embodiment, a front connecting seat 7 is provided at the upper end of the front oblique rod 5, and a pin hole 8 is used as a movable connecting point. The front connecting seat 7 and the pin hole 8 are fixedly connected by a pin.

[0037] Specifically, when front diagonal rods 5 of different lengths are selected and the front connecting seat 7 is moved to different pin holes 8 along the length direction of the front horizontal rod 3, the position of the front connecting seat 7 can be adjusted without replacing the front horizontal rod 3, thereby realizing the change in length of the front end of the movable connection main truss structure to match the production requirements of bridges of different lengths.

[0038] like Figure 1 As shown, in this embodiment, a sling 101 is movably provided on the vertical rod 1, and the sling 101 is used to connect the rear end of the bottom basket 160 to achieve the lifting and lowering of the rear end of the bottom basket 160 along the vertical rod 1. It can be understood that the sling 101 can be composed of a pulley and a steel cable, and the steel cable is respectively connected to the pulley and the crossbeam at the rear end of the bottom basket 160. By rotating the pulley, the steel cable can be used to drive the rear end of the bottom basket 160 to be lifted and lowered along the vertical rod 1. In other embodiments, the bottom of the vertical rod 1 can also be used to connect with the crossbeam at the rear end of the bottom basket 160 to assist the lifting and lowering of the bottom basket 160.

[0039] In this embodiment, the pin seat 9 includes: a first pin seat 91, a second pin seat 92, a third pin seat 93 and a fourth pin seat 94. The first pin seat 91 and the second pin seat 92 are respectively located on both sides of the upper end of the vertical rod 1, and the third pin seat 93 and the fourth pin seat 94 are respectively located on both sides of the lower end of the vertical rod 1.

[0040] Specifically, the first pin seat 91 is used to realize the movable connection between the upper end of the vertical rod 1 and the front end of the rear horizontal rod 2, the second pin seat 92 is used to realize the movable connection between the upper end of the vertical rod 1 and the rear end of the front horizontal rod 3, the third pin seat 93 is used to realize the movable connection between the lower end of the vertical rod 1 and the lower end of the rear diagonal rod 4, and the fourth pin seat 94 is used to realize the movable connection between the lower end of the vertical rod 1 and the lower end of the front diagonal rod 5. In this embodiment, pins are set at the movable connection of each rod for connection. The rods are connected by pins to ensure good structural stability of the main truss, and the installation and disassembly are convenient and quick, which reduces the difficulty of construction. The size and bearing capacity of the main truss can be flexibly adjusted according to actual needs by replacing the corresponding rods and the connection positions of the corresponding connecting seats on the rods. It has strong versatility, greatly improves material utilization, and significantly reduces construction costs.

[0041] Example 2

[0042] like Figures 2 to 6 As shown, the cantilever bridge-building machine of the utility model comprises: a shoulder pole beam 120, a main hanger 130, a bottom basket 160, a C-shaped hook 180, a rear upper cross beam 190 and a connecting component 111. The rear upper cross beam 190 is arranged on the top of the bridge 200, and the two ends of the rear upper cross beam 190 are respectively connected to the C-shaped hooks 180. The shoulder pole beams 120 are symmetrically arranged on both sides of the rear upper cross beam 190, one end of the connecting component 111 is connected to the shoulder pole beam 120, and the other end of the connecting component 111 is connected to the main hanger 130. The main hanger 130 is used to connect the movable connection type main truss structure 100, so that the movable connection type main truss structure 100 is symmetrically arranged on both sides of the bridge 200, and the movable connection type main truss structure 100 is connected to the bottom basket 160. In this embodiment, the connecting component 111 can specifically be a steel bar.

[0043] like Figure 2 As shown, in this embodiment, it also includes a rear fulcrum cylinder 110, which is located on the node at the rear end of the rear horizontal rod 2. The rear fulcrum cylinder 110 is respectively connected to the rear horizontal rod 2 and the bridge 200, and is used to realize the load transfer at the rear end of the movable connection type main truss structure 100 to the bridge 200.

[0044] like Figure 2 As shown, in this embodiment, it also includes a front upper cross beam 140, which is located at the node at the front end of the front horizontal rod 3. The front end of the bottom basket 160 is connected to the front upper cross beam 140 through the suspension rod 150, and the rear end of the bottom basket 160 is connected to the vertical rod 1.

[0045] like Figure 4 and Figure 5 As shown, in this embodiment, the movable connection main truss structure 100 is applied to two different beam types with the longest segments being a and b, respectively, a=4000mm, b=5000mm, and the front end node position of the main truss is moved forward, and the front upper cross beam 140 moves forward following the front end node of the main truss. Only the front diagonal rod 5 needs to be replaced to adapt to the 5m beam type, thereby reducing the replacement cost.

[0046] like Figure 6 As shown, in this embodiment, the rear end of the bottom basket 160 is inserted into the lower part of the vertical rod 1, and the upper part of the vertical rod 1 is provided with a hanging member 101, which is connected to the cross beam at the rear end of the bottom basket 160, so as to realize the lifting and lowering of the rear end of the bottom basket 160 along the vertical rod 1. It can be understood that the hanging member 101 can be composed of a pulley and a steel cable, and the steel cable is respectively connected to the pulley and the cross beam at the rear end of the bottom basket 160. By rotating the pulley, the steel cable can be used to drive the rear end of the bottom basket 160 to be lifted and lowered along the vertical rod 1. In other embodiments, the bottom of the vertical rod 1 can also be used to connect with the cross beam at the rear end of the bottom basket 160 to assist the lifting and lowering of the bottom basket 160.

[0047] like Figure 6 As shown, in this embodiment, when the movable main truss structure 100 is used in a bridge with a small cross-sectional height, the length of the lower part of the vertical rod 1 can be lengthened to extend directly to the bottom of the cross beam of the bottom basket 160, and the bottom basket cross beam can be passed through the vertical rod 1; when the height of the casting section changes, the hanging member 101 drives the rear cross beam of the bottom basket to slide up and down along the vertical rod 1, thereby avoiding the interference between the movable main truss structure 100 and the bottom basket 160. If the main truss needs to be used in a bridge with a large cross-sectional height, the basic member can be directly replaced, and other rods do not need to be replaced, which greatly saves the use cost.

[0048] like Figure 2 As shown, in this embodiment, a pin shaft 170 is also included, and the main hanger 130 and the movable main truss structure 100 are connected by the pin shaft 170, which has the advantages of simple structure, reliable connection, and convenient assembly and disassembly.

[0049] During pouring, the load of the front beam of the bottom basket is transferred to the front upper beam 140 through the hanger 150. The front upper beam 140 is placed at the front end of the main truss, thereby transferring the load to the main truss. The load of the rear beam of the bottom basket is directly transferred to the middle of the main truss through the hanging piece 101. At the same time, the main truss is connected to the main hanger 130 through the pin 170, and the load is transferred to the beam surface of the bridge 200 through the main hanger 130, the connecting component 111 and the rear upper beam 190. A rear fulcrum cylinder 110 is designed at the rear end of the main truss to transfer the force to the concrete beam body.

[0050] like Figure 2As shown, in this embodiment, a support component 112 is also included, and the rear upper cross beam 190 is installed on the top of the bridge 200 through the support component 112. It can be understood that the support component 112 can be specifically composed of a slide and a jacking component. The specific structure of the slide and the jacking component can adopt the conventional settings in this field, which will not be repeated here. A slide and a jacking component are arranged below the rear upper cross beam 190. The slide can be used to support the rear upper cross beam 190 during pouring, and can cooperate with the jacking component to drive the cantilever bridge construction machine to move during movement, and the structure is simple.

[0051] The cantilever bridge-building machine of this embodiment includes the above-mentioned movable connection type main truss structure, and thus also has the above-mentioned advantages.

[0052] Although the utility model is disclosed as above with preferred embodiments, it is not intended to limit the utility model. Any technician familiar with the art can use the above disclosed methods and technical contents to make many possible changes and modifications to the technical solution of the utility model without departing from the spirit and technical solution of the utility model, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments according to the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of protection of the technical solution of the utility model.

Claims

1. A movable main truss structure, characterized in that: include: A vertical rod (1), a horizontal rod, a rear diagonal rod (4) and a front diagonal rod (5); the upper end of the vertical rod (1) is connected to the horizontal rod, the lower end of the vertical rod (1) is hinged to the lower end of the rear diagonal rod (4) and the lower end of the front diagonal rod (5), the upper end of the rear diagonal rod (4) is connected to the rear end of the horizontal rod, and the upper end of the front diagonal rod (5) is connected to the front end of the horizontal rod; the horizontal rod, the rear diagonal rod (4) and the front diagonal rod (5) together form a main truss body of an inverted triangle structure.

2. The movable connection type main truss structure according to claim 1, characterized in that: The horizontal rod comprises a rear horizontal rod (2) and a front horizontal rod (3), and the front end of the rear horizontal rod (2) and the rear end of the front horizontal rod (3) are respectively connected to the upper end of the vertical rod (1).

3. The movable connection type main truss structure according to claim 2, characterized in that: The rear end of the rear horizontal rod (2) and / or the front end of the front horizontal rod (3) are provided with a plurality of movable connection points at intervals in the horizontal direction. By replacing the rear oblique rod (4) and / or the front oblique rod (5) of different lengths and changing the connection between the rear oblique rod (4) and / or the front oblique rod (5) and different movable connection points, the bridge can be adapted to different types of bridges.

4. The movable connection type main truss structure according to claim 3 is characterized in that: A rear connecting seat (6) is provided at the upper end of the rear oblique rod (4); the movable connecting point adopts a pin hole (8); and the rear connecting seat (6) and the pin hole (8) are fixedly connected via a pin.

5. The movable connection type main truss structure according to claim 3, characterized in that: A front connecting seat (7) is provided at the upper end of the front oblique rod (5); the movable connecting point adopts a pin hole (8); and the front connecting seat (7) and the pin hole (8) are fixedly connected via a pin.

6. The movable connection type main truss structure according to claim 1, characterized in that: A hanging member (101) is movably provided on the vertical rod (1), and the hanging member (101) is used to connect the rear end of the bottom basket (160) so as to enable the rear end of the bottom basket (160) to be lifted and lowered along the vertical rod (1).

7. A cantilever bridge-building machine using the movable connection type main truss structure according to any one of claims 1 to 6, characterized in that: include: A shoulder pole beam (120), a main hanger (130), a bottom basket (160), a C-shaped hook (180), a rear upper cross beam (190), and a connecting component (111); the rear upper cross beam (190) is arranged on the top of the bridge (200), and the two ends of the rear upper cross beam (190) are respectively connected to the C-shaped hooks (180); shoulder pole beams (120) are symmetrically arranged on both sides of the rear upper cross beam (190); one end of the connecting component (111) is connected to the shoulder pole beam (120), and the other end of the connecting component (111) is connected to the main hanger (130); the main hanger (130) is used to connect a movable connection type main truss structure (100), so that the movable connection type main truss structure (100) is symmetrically arranged on both sides of the bridge (200); the movable connection type main truss structure (100) is connected to the bottom basket (160).

8. The cantilever bridge-building machine according to claim 7, characterized in that: It also includes a rear fulcrum oil cylinder (110), which is located at a node at the rear end of the rear horizontal rod (2). The rear fulcrum oil cylinder (110) is connected to the rear horizontal rod (2) and the bridge (200) respectively, and is used to transfer the load at the rear end of the movable connection type main truss structure (100) to the bridge (200).

9. The cantilever bridge-building machine according to claim 7, characterized in that: It also comprises a front upper cross beam (140), the front upper cross beam (140) being located at a node at the front end of the front horizontal rod (3), the front end of the bottom basket (160) being connected to the front upper cross beam (140) via a suspension rod (150), and the rear end of the bottom basket (160) being connected to the vertical rod (1).

10. The cantilever bridge-building machine according to any one of claims 7 to 9, characterized in that: It also includes a supporting component (112), and the rear upper cross beam (190) is installed on the top of the bridge (200) through the supporting component (112).

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