Rotary lifting appliance on arch of deck type arch bridge

Abstract

The utility model discloses a deck type arch bridge rotary type on-arch lifting appliance which comprises an on-arch stand column, a lifting arm is arranged on the on-arch stand column, a locking piece is arranged between the lifting arm and the on-arch stand column, a winch is arranged on the lifting arm, and a jack is arranged on one side of the winch. After the winch is connected with the steel beam section, the jack pulls the winch and the steel beam section to move synchronously; the suspension arm can rotate relative to the on-arch stand column after being disconnected with the locking piece. According to the technical scheme, vertical lifting and horizontal transverse movement of the steel beam sections are achieved mainly through the on-arch lifting appliance on the main arch ring, compared with an existing construction method that anchor points of a cable crane are repeatedly changed to achieve the movement mode, the on-arch lifting appliance can rapidly achieve horizontal transverse movement, meanwhile, a transverse movement support does not need to be erected in the whole process, steel is saved, and the construction cost is reduced. The problem that the transverse moving platform is difficult to erect under the complex terrain condition is effectively solved, in addition, the hoisting speed can be increased, and the construction period can be shortened.

Description

Technical Field

[0001] The utility model particularly relates to a rotary arch sling on an upper bearing arch bridge. Background Art

[0002] The existing construction method for hoisting beam segments of an upper bearing arch bridge has the following process: first, a transverse movement support is erected, and the beam segment is hoisted onto the transverse movement platform by a cable crane. After the cable crane horizontally moves the beam segment to the designated position, the beam segment is then longitudinally hoisted to the corresponding position by the cable crane. The following problems exist during the construction of the cable crane:

[0003] Firstly, a large amount of steel is required to build the transverse movement platform before using the cable crane. Secondly, it is difficult to build the transverse movement platform under the complex terrain conditions of mountainous valleys. Finally, the operating speed of the cable crane is low, and it needs to move back and forth repeatedly, with a long hoisting trajectory and a long construction period. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a rotary arch sling on an upper bearing arch bridge.

[0005] To solve the above existing technical problems, the utility model adopts the following technical solutions:

[0006] A rotary arch sling on an upper bearing arch bridge includes an arch upper column. A boom is arranged on the arch upper column. A locking member is arranged between the boom and the arch upper column. A winch is arranged on the boom. A jack is arranged on one side of the winch. After the winch is connected to the steel beam segment, the jack pulls the winch and the steel beam segment to move synchronously. The boom can rotate relative to the arch upper column after being disconnected from the locking member.

[0007] Preferably, the locking member is a bolt.

[0008] Preferably, the boom is a truss cantilever member.

[0009] Preferably, a chain block is arranged on the side of the winch away from the jack.

[0010] The beneficial effects of the utility model are as follows:

[0011] In the technical solution of the present application, the vertical lifting and horizontal transverse movement of the steel beam segment are mainly realized by using the arch sling. Compared with the existing construction method where the cable crane repeatedly changes the anchor points to achieve the movement mode, the arch sling of the present application can quickly achieve horizontal transverse movement, and there is no need to build a transverse movement support during the whole process, saving steel and effectively solving the problem of difficult construction of the transverse movement platform under complex terrain conditions. In addition, it can also improve the hoisting speed and shorten the construction period. Description of the Drawings

[0012] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the following description of the embodiments in conjunction with the accompanying drawings, where:

[0013] Figure 1 is a schematic structural view of the main arch ring of this application without the installation of the arch hanging device;

[0014] Figure 2 is a schematic structural view of the main arch ring of this application assembled with the arch hanging device;

[0015] Figure 3 is a schematic structural view of a rotary arch hanging device for an upper-supported arch bridge of this application Figure 1 ;

[0016] Figure 4 is a working schematic view of the rotary arch hanging device for an upper-supported arch bridge of this application on the main arch ring Figure 1 ;

[0017] Figure 5 is a schematic structural view of a rotary arch hanging device for an upper-supported arch bridge of this application Figure 2 ;

[0018] Figure 6 is a schematic structural view of a rotary arch hanging device for an upper-supported arch bridge of this application Figure 3 ;

[0019] Figure 7 is a schematic structural view of a rotary arch hanging device for an upper-supported arch bridge of this application Figure 4 ;

[0020] Figure 8 is a schematic structural view of a rotary arch hanging device for an upper-supported arch bridge of this application Figure 5 ;

[0021] Figure 9 is a schematic structural view of a rotary arch hanging device for an upper-supported arch bridge of this application Figure 6 ;

[0022] Figure 10 is a working schematic view of the rotary arch hanging device for an upper-supported arch bridge of this application on the main arch ring Figure 2 ;

[0023] Figure 11 is a working schematic view of the rotary arch hanging device for an upper-supported arch bridge of this application on the main arch ring Figure 3 ;

[0024] Figure 12 is a working schematic view of the rotary arch hanging device for an upper-supported arch bridge of this application on the main arch ring Figure 4 ;

[0025] Figure 13Schematic of the working of the rotating arch hanger on the main arch ring of the through arch bridge of the present application Figure 5 。 Detailed implementation mode

[0026] The embodiments of the present utility model will be described in detail below. The illustrated embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0027] The orientation shown in the drawings should not be construed as limiting the specific protection scope of the present utility model. It is only for reference and understanding of the preferred embodiments. The positions of the product components shown in the drawings can be changed, the quantity can be increased, or the structure can be simplified.

[0028] The "connection" described in the specification and the "connection" relationship between the components shown in the drawings can be understood as fixedly connected, detachably connected, or integrally formed; it can be directly connected or connected through an intermediate medium. Those of ordinary skill in the art can understand the connection relationship according to the specific situation and can obtain different implementation modes by means of screwing, riveting, welding, clamping, embedding, etc. in a suitable manner for substitution.

[0029] For the orientation words such as up, down, left, right, top, bottom, etc. described in the specification and the orientation shown in the drawings, the components can be in direct contact or in contact through other features between them; for example, being above can be directly above or obliquely above, or it only means being higher than other objects; other orientations can be understood by analogy.

[0030] The manufacturing materials of the components with solid shapes shown in the specification and the drawings can be metal materials, non-metal materials, or other synthetic materials; for the machining processes adopted for the components with solid shapes, they can be stamping, forging, casting, wire cutting, laser cutting, injection molding, numerical milling, 3D printing, machining, etc.; those of ordinary skill in the art can adaptively select or combine the selection according to different processing conditions, costs, and precisions, but are not limited to the above materials and manufacturing processes.

[0031] A rotating arch hanger for a through arch bridge, referring to Figures 1 - 13 , includes an arch column 11, a boom 12 is arranged on the arch column 11, a locking member 13 is arranged between the boom 12 and the arch column 11, a winch 14 is arranged on the boom 12, and a jack 15 is arranged on one side of the winch 14; after the winch 14 is connected to the steel beam segment 2, the jack 15 pulls the winch 14 and the steel beam segment 2 to move synchronously; the boom 12 can rotate relative to the arch column 11 after the connection with the locking member 13 is released.

[0032] Furthermore, the locking member 13 is a bolt.

[0033] Further, the jib 12 is a truss cantilever member.

[0034] Further, a chain block 120 is provided on the side of the winch 14 facing away from the jack 15.

[0035] The working principle of the present utility model is as follows:

[0036] Taking the hoisting construction process of the steel beam segment 2 of the upper-supported arch bridge as an example, the design principle of the rotary arch-mounted hoist 1 of the present application is illustrated.

[0037] Arch-mounted hoist 1: The arch-mounted hoist 1 is used for the vertical hoisting and lateral movement of the steel beam segment 2;

[0038] Arch-mounted assembly platform 1-3: The arch-mounted assembly platform 1-3 is used for the temporary storage and splicing of the steel beam segment 2;

[0039] Cable crane 1-2: Used for the longitudinal hoisting of the steel beam segment 2.

[0040] Figure 1 It is a schematic structural diagram of the main arch ring 1-1 without the arch-mounted hoist 1 installed;

[0041] Step 1: Two arch-mounted hoists 1 are installed on the main arch ring 1-1. The arch-mounted hoist 1 vertically hoists the steel beam segment 2 and transports the steel beam segment 2 to the lower part of the main arch ring 1-1 of the upper-supported arch bridge. Both ends of the steel beam segment 2 are respectively connected and fixed to the winches 14 of the corresponding arch-mounted hoists 1. Generally, the ends of the steel beam segment 2 are fixed to the suspension ropes of the winches 14. Figure 2 It is the application of the arch-mounted hoist 1 on the main arch ring 1-1. Figure 3 It is a schematic diagram of the state of the arch-mounted hoist 1; then start the two winches 14 simultaneously, and the winches 14 can vertically hoist the steel beam segment 2 to the corresponding position, as Figures 4 - 5 shown;

[0042] Step 2: After completing Step 1, as Figures 6 - 7 shown, start the jack 15 to pull the winch 14 and the steel beam segment 2 to move horizontally to the left; when the steel beam segment 2 needs to move horizontally to the right, a chain block 120 can be provided on the jib 12, and the chain block 120 is used to pull the winch 14 to move to the right, thereby driving the steel beam segment 2 to move horizontally to the right.

[0043] Step 3: After completing Step 2, as Figure 8 shown, disconnect the connection between the steel beam segment 2 and the winch 14, and the steel beam segment 2 is hoisted by the cable crane 1-2. When the cable crane 1-2 removes the steel beam segment 2 from the arch-mounted hoist 1, loosen the bolts between the jib 12 and the arch-mounted column 11, and rotate the jib 90 degrees in the horizontal direction to prevent the jib 12 from interfering with the movement of the steel beam segment 2, as Figures 9 - 10As shown in the figure; at this time, the jib is placed on the arch upper column 11 by its own gravity; the jib 12 in the above is preferably a truss cantilever member.

[0044] Step 4: Use the cable crane 1-2 to move the steel beam segment 2 to the assembly platform 1-3, as Figures 11 - 12 shown, Figure 13 is a schematic structural diagram after hoisting multiple steel beam segments. In Figure 12 Regarding the application scenario of the jack 15, the application scenario at this time is for tunnel operations. Since the cable crane 1-2 cannot operate in the tunnel, the jack 15 is placed in the tunnel, and the jack 15 is used to drag the steel beam segment 2 into the tunnel.

[0045] In the technical solution of the present application, the vertical lifting and horizontal translation of the steel beam segment 2 are mainly realized by the arch-mounted hoist 1 on the main arch ring 1-1. Compared with the existing construction method where the cable crane 1-2 repeatedly changes the anchor points to achieve the moving mode, the arch-mounted hoist 1 of the present application can quickly achieve horizontal translation. At the same time, during the whole process, there is no need to erect a horizontal translation support, saving steel and effectively solving the problem of difficulty in erecting a horizontal translation platform under complex terrain conditions. In addition, it can also improve the hoisting speed and shorten the construction period.

[0046] In the above technical solution, since the cable crane can achieve longitudinal and horizontal movement, which is a conventional means in the technical field of this genus and not the main design concept of the present application, the working principle thereof will not be described in detail herein.

[0047] Although the present invention has been described in detail with reference to the above embodiments, it is obvious to those skilled in the art through the present disclosure that various changes or modifications can be made to the present invention without departing from the principle and spirit scope defined by the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used to explain, rather than to limit the present invention, and the scope of protection is defined by the content of the claims.

Claims

1. A rotary arch sling on an upper bearing arch bridge, characterized in that It includes a column above the arch (11), a jib (12) is arranged on the column above the arch (11), a locking member (13) is arranged between the jib (12) and the column above the arch (11), a winch (14) is arranged on the jib (12), and a jack (15) is arranged on one side of the winch (14); after the winch (14) is connected to the steel beam segment (2), the jack (15) pulls the winch (14) and the steel beam segment (2) to move synchronously; the jib (12) can rotate relative to the column above the arch (11) after being disconnected from the locking member (13).

2. The rotary arch sling on the upper bearing type arch bridge according to claim 1, characterized in that, The locking member (13) is a bolt.

3. The rotary arch sling on the upper-hinged arch bridge according to claim 1, characterized in that, The jib (12) is a truss cantilever member.

4. The rotary sling on the arch of the through arch bridge according to claim 1, characterized in that, A chain block (120) is arranged on one side of the winch (14) away from the jack (15).

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