CN216156372U - Traction circulation system for erecting spatial main cable strand of three-tower self-anchored suspension bridge - Google Patents
Traction circulation system for erecting spatial main cable strand of three-tower self-anchored suspension bridge Download PDFInfo
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- CN216156372U CN216156372U CN202122000727.8U CN202122000727U CN216156372U CN 216156372 U CN216156372 U CN 216156372U CN 202122000727 U CN202122000727 U CN 202122000727U CN 216156372 U CN216156372 U CN 216156372U
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Abstract
The utility model relates to a traction circulation system for erecting a main cable strand in a three-tower self-anchored suspension bridge space, and belongs to the technical field of suspension bridge construction. The device comprises two main traction winches, wherein the two main traction winches are arranged on one side of a beam section bridge floor, a cable releasing area is arranged on the other side of the beam section bridge floor, a cable releasing frame for releasing a main cable is arranged in the cable releasing area, and a steering pulley block is arranged in the cable releasing area; a dragging device is arranged at the anchor head of the main cable, a traction rope on one main traction winch is fixedly connected with the dragging device, the other traction rope on the main traction winch is reversed through a steering pulley block and fixedly connected with the dragging device, and a strand of the main cable is connected with the dragging device; one main traction winch emits the corresponding traction rope, and the other main traction winch winds the corresponding traction rope. The bearing rope and the gantry are omitted in the application, the traction force of the winch during winding and unwinding is adjusted, the cost of erecting equipment is reduced, the main cable is convenient to erect, and the erecting efficiency of the main cable is improved.
Description
Technical Field
The utility model relates to a traction circulation system for erecting a main cable strand in a three-tower self-anchored suspension bridge space, and belongs to the technical field of suspension bridge construction.
Background
The three-tower self-anchored suspension bridge is different from the traditional two-tower suspension bridge in structure form, and although the bridge is mainly formed by suspension cables, the three-tower self-anchored suspension bridge has one more main span compared with the two-tower suspension bridge, so that the requirements for structural characteristic indexes and the like are different from those of the traditional two-tower suspension bridge.
The structural design of the three-tower self-anchored suspension bridge is carried out on the principle that the optimal rigidity of the middle tower, the deflection generated in the main span and the safety coefficient when the main cable on the middle tower slides are all within the allowable value range. At present, a traction system needs to be matched with a portal frame or a bearing rope for use in erection construction of a main cable, main cable erection equipment is added, erection is complex, and erection efficiency is reduced.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide a traction circulation system for erecting a main cable strand in a three-tower self-anchored suspension bridge space aiming at the prior art, so that a bearing rope and a portal frame are omitted, and the cost of erecting equipment is reduced; the main cable is convenient to erect, and the main cable erection efficiency is improved.
The technical scheme adopted by the utility model for solving the problems is as follows: the traction circulation system for erecting the main cable strand in the space of the three-tower self-anchored suspension bridge comprises two main traction winches, wherein the two main traction winches are arranged on one side of a bridge deck of a beam section, a cable releasing area is arranged on the other side of the bridge deck of the beam section, a cable releasing frame for releasing a main cable is arranged in the cable releasing area, and a steering pulley block is arranged in the cable releasing area; a dragging device is arranged at the anchor head of the main cable, a traction rope on one main traction winch is fixedly connected with the dragging device, the other traction rope on the main traction winch is reversed through a steering pulley block and fixedly connected with the dragging device, and a strand of the main cable is connected with the dragging device; and one main traction winch emits the corresponding traction rope, and the other main traction winch winds the corresponding traction rope to drive the dragging device and the main cable to be dragged to the other side of the bridge deck of the beam section through the cable releasing area.
The cable releasing frame is connected with a cable releasing winch, and the cable releasing winch drives the cable releasing frame to move to a specified position.
The drawing device comprises a drawing support, the bottom of the drawing support is provided with a drawing hole, and the drawing hole is fixedly connected with the main cable; the top of the dragging support is hinged to the rotating frame through a rotating shaft, two rope clamping plates are arranged on the rotating frame and are arranged on the same straight line, and the rope clamping plates are fixedly connected with corresponding traction ropes on the main traction winch.
Compared with the prior art, the utility model has the advantages that: the traction circulation system is used for erecting main cable strands in the space of the three-tower self-anchored suspension bridge, the traction ropes on the two main traction winches are fixed in rope clamping plates corresponding to the dragging devices, the main cable strands are fixedly connected with the dragging holes through steel wire ropes, one main traction winch emits the corresponding traction ropes, the other main traction winch winds the corresponding traction ropes, and the main cables are pulled to the north side of the bridge deck of the beam section through a cable releasing area to complete traction of the cable strands. The bearing rope and the gantry are omitted in the application, the traction force of the winch during winding and unwinding is adjusted, the cost of erecting equipment is reduced, the main cable is convenient to erect, and the erecting efficiency of the main cable is improved.
Drawings
FIG. 1 is a schematic view of a traction circulation system for erecting main cable strands in a space of a three-tower self-anchored suspension bridge according to an embodiment of the present invention;
FIG. 2 is a schematic view of a dragger in a traction circulation system for erecting main cable strands in a space of a three-tower self-anchored suspension bridge according to an embodiment of the present invention;
FIG. 3 is a side view of FIG. 2;
in the figure, a rope releasing frame 1, a rope releasing winch 2, a steering pulley block 3, a main rope 4, a traction rope 5, a main traction winch 6, a dragging device 7, a dragging support 7.1, a dragging hole 7.2, a rotating shaft 7.3, a rotating frame 7.4 and a rope clamping plate 7.5 are arranged.
Detailed Description
The utility model is described in further detail below with reference to the accompanying examples.
As shown in fig. 1, the traction circulation system for erecting the main cable strand in the space of the three-tower self-anchored suspension bridge in this embodiment includes two main traction winches 6, the two main traction winches 6 are both disposed on the north side of the bridge deck of the beam section, one main traction winch 6 is used for paying off the corresponding traction rope 5, the other main traction winch 6 is used for winding the corresponding traction rope 5, the south side of the bridge deck of the beam section is provided with a cable paying-off area, the cable paying-off area is provided with a cable paying-off rack 1 for winding the main cable 4, the cable paying-off rack 1 is connected with the cable paying-off winch 2, and the cable paying-off winch 2 drives the cable paying-off rack 1 to move to a designated position. The south side of the bridge deck of the beam section is provided with a steering pulley block 3. The anchor head of the main cable 4 is provided with a dragging device 7, a traction rope 5 on one main traction winch 6 is fixedly connected with the dragging device 7, a traction rope 5 on the other main traction winch 6 is reversed through a steering pulley block 3 and fixedly connected with the dragging device 7, and a strand of the main cable 4 is connected with the dragging device 7. One main traction winch 6 emits the corresponding traction rope 5, the other main traction winch 6 winds the corresponding traction rope 5 to drive the dragging device 7 and the main cable 4 to be dragged to the other side of the bridge floor of the beam section through the cable releasing area, and the main cable is dragged to the north side of the bridge floor of the beam section through the cable releasing area to complete the traction of the cable strand.
The main cable starts from the cable releasing area and moves to the other side along the catwalk, the traction speed is preferably about 20-30m/min, and the traction speed needs to be reduced when the first few cable strands are pulled.
As shown in fig. 2 and 3, the drawing device 7 includes a drawing support 7.1, a drawing hole 7.2 is formed at the bottom of the drawing support 7.1, and the drawing hole 7.2 is fixedly connected with the head of the main cable 4 through a steel wire rope. The top of the dragging support 7.1 is hinged with a rotating frame 7.4 through a rotating shaft 7.3, two rope clamping plates 7.5 are arranged on the rotating frame 7.4, the two rope clamping plates 7.5 are arranged on the same straight line, and the two rope clamping plates 7.5 are fixedly connected with corresponding traction ropes. One traction rope on the puller 7 is used for erecting a main cable strand and supporting a cable strand anchor head and other lifting, and the other traction rope on the puller 7 is used for slow transmission, so that the traction rope is used for bearing the weight of the main cable strand during erection and ensuring the stable advance of the main cable strand in the traction process.
The traction ropes on the two main traction winches are fixed in the rope clamping plates corresponding to the dragging devices, the main cable strands are fixedly connected with the dragging holes through steel wire ropes, one main traction winch emits the corresponding traction rope, the other main traction winch winds the corresponding traction rope, and the main cable is pulled to the north side of the bridge deck of the beam section through the rope releasing area to complete traction of the cable strands. The bearing rope and the gantry are omitted in the application, the traction force of the winch during winding and unwinding is adjusted, the cost of erecting equipment is reduced, the main cable is convenient to erect, and the erecting efficiency of the main cable is improved. In addition, two main cable strand erects and to accomplish through the traction circulation system in this application, convenient operation practices thrift equipment cost.
In addition to the above embodiments, the present invention also includes other embodiments, and any technical solutions formed by equivalent transformation or equivalent replacement should fall within the scope of the claims of the present invention.
Claims (3)
1. Three tower self anchored suspension bridge space main push-towing circulation system for cable strand erects, its characterized in that: the device comprises two main traction winches (6), wherein the two main traction winches (6) are arranged on one side of a beam section bridge surface, a cable releasing area is arranged on the other side of the beam section bridge surface, a cable releasing frame (1) for releasing a main cable (4) is arranged in the cable releasing area, and a steering pulley block (3) is arranged in the cable releasing area; a dragging device (7) is arranged at the anchor head of the main cable (4), a traction rope (5) on one main traction winch (6) is fixedly connected with the dragging device (7), the traction rope (5) on the other main traction winch (6) is reversed through a steering pulley block (3) and is fixedly connected with the dragging device (7), and the main cable (4) is connected with the dragging device (7); and one main traction winch emits the corresponding traction rope, and the other main traction winch winds the corresponding traction rope to drive the dragging device and the main cable to be dragged to the other side of the bridge deck of the beam section through the cable releasing area.
2. The traction circulation system for erecting the main cable strand in the space of the three-tower self-anchored suspension bridge according to claim 1, wherein: the cable releasing frame (1) is connected with a cable releasing winch (2), and the cable releasing winch drives the cable releasing frame to move to a specified position.
3. The traction circulation system for erecting the main cable strand in the space of the three-tower self-anchored suspension bridge according to claim 1, wherein: the drawing device (7) comprises a drawing support (7.1), a drawing hole (7.2) is formed in the bottom of the drawing support (7.1), and the drawing hole (7.2) is fixedly connected with the main cable (4); draw support (7.1) top and swivel mount (7.4) articulated through pivot (7.3), set up two rope clamping plate (7.5) on swivel mount (7.4), two on rope clamping plate (7.5) locate same straight line, the haulage rope on the main traction hoist that rope clamping plate (7.5) internal fixation connected corresponds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122000727.8U CN216156372U (en) | 2021-08-24 | 2021-08-24 | Traction circulation system for erecting spatial main cable strand of three-tower self-anchored suspension bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122000727.8U CN216156372U (en) | 2021-08-24 | 2021-08-24 | Traction circulation system for erecting spatial main cable strand of three-tower self-anchored suspension bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216156372U true CN216156372U (en) | 2022-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122000727.8U Active CN216156372U (en) | 2021-08-24 | 2021-08-24 | Traction circulation system for erecting spatial main cable strand of three-tower self-anchored suspension bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216156372U (en) |
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2021
- 2021-08-24 CN CN202122000727.8U patent/CN216156372U/en active Active
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