CN216194146U - Reinforced concrete box girder flange plate dismounting device - Google Patents
Reinforced concrete box girder flange plate dismounting device Download PDFInfo
- Publication number
- CN216194146U CN216194146U CN202122605216.9U CN202122605216U CN216194146U CN 216194146 U CN216194146 U CN 216194146U CN 202122605216 U CN202122605216 U CN 202122605216U CN 216194146 U CN216194146 U CN 216194146U
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- reinforced concrete
- flange plate
- box girder
- concrete box
- winch
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- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 20
- 239000010959 steel Substances 0.000 claims abstract description 20
- 238000003466 welding Methods 0.000 claims description 3
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000004567 concrete Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
The utility model provides a simple and practical reinforced concrete box girder flange plate dismantling device, which aims to solve the traffic problem of dismantling a reinforced concrete box girder flange plate on an urban road. A reinforced concrete box girder flange plate dismantling device comprises a flat car, a winch and a bracket; the flat car is provided with a bracket and a winch, pulley blocks are symmetrically arranged on the left side and the right side of the bracket, and the pulley blocks are positioned above the winch; the winch pulls out two steel wire ropes, the steel wire ropes respectively bypass the two groups of pulley blocks to be connected to the lifting hooks, and the lifting hooks are connected with the flange plates through the lifting ropes.
Description
Technical Field
The utility model relates to a reinforced concrete box girder flange plate dismantling device, and belongs to the technical field of bridge construction.
Background
When the reinforced concrete box girder is dismantled, because the reinforced concrete box girder is heavy in weight and long in length, the flange plates on the two sides need to be cut off firstly and then are transported away by a transport vehicle, and then the box body is cut step by step. In the prior art, when the flange plate is cut, in order to prevent the flange plate from falling in the whole cutting process, the reinforced concrete box girder flange plate is hung by a crane from the beginning of cutting and is always positioned on a road to be crossed under a bridge, so that the road under the bridge cannot pass, and therefore, when the traffic is not allowed to be interrupted for a long time, the scheme of the crane cannot be implemented.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a simple and practical reinforced concrete box girder flange plate dismantling device in order to solve the traffic problem of dismantling a reinforced concrete box girder flange plate on an urban road.
In order to achieve the purpose, the utility model is realized by the following technical scheme:
a reinforced concrete box girder flange plate dismantling device comprises a flat car, a winch and a bracket; the flat car is provided with a bracket and a winch, pulley blocks are symmetrically arranged on the left side and the right side of the bracket, and the pulley blocks are positioned above the winch; the winch pulls out two steel wire ropes, the steel wire ropes respectively bypass the two groups of pulley blocks to be connected to the lifting hooks, and the lifting hooks are connected with the flange plates through the lifting ropes.
On above-mentioned reinforced concrete box girder flange board demolishs device basis, the support includes base, crossbeam, two montants and two bracing, and two montants parallel interval set up on the base, and the crossbeam setting is in two montants tops, and the bracing setting is between base and crossbeam.
On above-mentioned reinforced concrete box girder flange board demolishs device basis, flange board bilateral symmetry is equipped with two outlet holes and hole for hoist, and two outlet holes and hole for hoist central point can be connected and become an isosceles triangle, and the rope for hoist passes outlet hole and hole for hoist and mount and sets up on the flange board through U type buckle, and the rope for hoist upper end is all hung on the lifting hook that corresponds the side.
On the above-mentioned reinforced concrete box girder flange board demolishs device basis, the assembly pulley includes two pulleys, and one of them pulley setting is in the oblique top of hoist engine, and another pulley is located the lifting hook top.
On the above-mentioned reinforced concrete box girder flange board demolishs the device basis, the support is the steel bracket that shaped steel welding formed.
On the basis of the reinforced concrete box girder flange plate dismantling device, the winch is a double-drum variable-speed winch.
The utility model has the advantages that:
1. the utility model ensures that the flange plate of the reinforced concrete box girder does not need to be hung on a road below by a crane to wait for the completion of cutting in the cutting process, and only needs to be carried away on a transport vehicle after the flange plate is cut, thereby basically not influencing traffic and not causing urban traffic jam.
2. The utility model can control the lowering speed of the flange plate, stably place the flange plate on the transport vehicle, and has simple, fast, safe and controllable operation in the whole process.
3. The utility model has simple manufacture, convenient use and minimal influence on traffic, and can reduce personnel and save cost compared with the operation of a crane.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
In the figure, 1 flange plate, 2 hoisting holes, 3 drain holes, 4 flat cars, 5 supports, 6 winches, 7 cross beams, 8 pulleys, 9 steel wire ropes, 10 lifting hooks, 11 hoisting ropes, 12 inclined struts, 13 boxes, 14 vertical rods and 15 bases are arranged in the figure.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a reinforced concrete box girder flange plate demolishing apparatus includes a flat car 4, a hoist 6, and a bracket 5; the flat car 4 is provided with a bracket 5 and a winch 6, pulley blocks are symmetrically arranged on the left side and the right side of the bracket 5, and the pulley blocks are positioned above the winch 6; the winch 6 pulls out two steel wire ropes 9, the steel wire ropes 9 respectively bypass two groups of pulley blocks to be connected to the lifting hooks 10, and the lifting hooks 10 are connected with the flange plate 1 through lifting ropes 11. The left and right devices are arranged symmetrically about the center line of the flat car 4. Because the left side and the right side are symmetrically arranged, the weight of the removed flange plates is close, the lateral force of the horizontal bridge in synchronous construction is resisted, and the support inclination or the horizontal movement of the flat car cannot be caused.
In this embodiment, the support is the steel bracket that shaped steel welding formed, including base 15, crossbeam 7, two montants 14 and two bracing 12, two montants 14 parallel interval sets up on the base, and crossbeam 7 sets up in two montants 14 tops, and bracing 12 sets up between base and crossbeam 7.
In this embodiment, the 1 left and right sides of flange board is equipped with two outlet 3 and hole for hoist 2, two outlet 3 and 2 central points of hole for hoist 2 can be connected and become an isosceles triangle, all establish a hole for hoist 2 on the flange board 1 of the left and right sides, hole for hoist 2 is located 13 one side of the box that is close to reinforced concrete box roof beam, lifting rope 11 passes outlet 3 and hole for hoist 2 and sets up on flange board 1 through U type buckle, 11 upper ends of lifting rope all hang on the lifting hook 10 that corresponds the side. After the hoisting rope 11 passes through the drain hole 3 or the hoisting hole 2, various locking modes are provided for preventing the lower end from slipping out of the hole. The preferred mode that adopts the U type buckle of this embodiment prevents the lower extreme slippage of hoist and mount rope 11 upwards, lets a U type buckle all be connected to the lower extreme of each hoist and mount rope 11, and is concrete, and two ends of hoist and mount rope 11 are the annular, lets the ring cover on U type buckle, then closed U type buckle, like this when hoist and mount rope 11 upwards hoists, U type buckle will block at the lower extreme of outlet 3 or hoist and mount hole 2, makes hoist and mount rope 11 can not upwards the slippage, thereby realizes hoisting. The U type buckle is engineering hoist and mount common part, and is no longer repeated here.
In this embodiment, the pulley block comprises two pulleys 8 arranged on the beam 7, one of which is arranged obliquely above the hoist 6 and the other of which is located above the hook 10.
In this embodiment, the hoist 6 is a double-drum variable-speed hoist, and can control rotation of any one of the drums independently, and also can control two drums to rotate synchronously, so that one steel wire rope 9 can be controlled to ascend and descend independently, and two steel wire ropes 9 can be controlled to ascend and descend simultaneously.
The using process of the utility model is as follows: the method comprises the steps of respectively arranging hoisting holes 2 in front of cutting flange plates 1 on the left side and the right side, respectively penetrating hoisting ropes 11 through drain holes 3 and the hoisting holes 2, connecting the lower ends of the hoisting ropes 11 with U-shaped buckles, then hanging three hoisting ropes 11 on each side on a lifting hook 10, controlling a double-drum variable-speed winch to upwards retract steel wire ropes 9 on the two sides through a PLC (programmable logic controller), and stopping when the hoisting ropes 11 are just stressed, wherein the steel wire ropes 9 are in a stretched state. And then cutting the flange plates 1 on the left side and the right side, after the flange plates 1 on the left side and the right side are cut off, the flange plates 1 cannot fall off due to the hoisting of the flange plates 1 by the steel wire ropes 9, at the moment, the transport vehicle is parked below the flange plates 1, one transport vehicle is respectively parked below the flange plates 1 on the left side and the right side, then the PLC controls the double-drum variable-speed winch to pay off, the flange plates 1 start to stably descend until the flange plates fall onto a wood base plate on the transport vehicle, the U-shaped buckle is removed, and the dismantling is completed.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a reinforced concrete box girder flange board demolishs device which characterized in that: comprises a flat car (4), a winch (6) and a bracket (5); the flat car (4) is provided with a bracket (5) and a winch (6), pulley blocks are symmetrically arranged on the left side and the right side of the bracket (5), and the pulley blocks are positioned above the winch (6); two steel wire ropes (9) are pulled out by the winch (6), the steel wire ropes (9) respectively bypass the two groups of pulley blocks to be connected with the lifting hooks (10), and the lifting hooks (10) are connected with the flange plates (1) through lifting ropes (11).
2. The reinforced concrete box girder flange plate demolition device according to claim 1, wherein: the support comprises a base (15), a cross beam (7), two vertical rods (14) and two inclined struts (12), wherein the two vertical rods (14) are arranged on the base at intervals in parallel, the cross beam (7) is arranged above the two vertical rods (14), and the inclined struts (12) are arranged between the base and the cross beam (7).
3. The reinforced concrete box girder flange plate demolition device according to claim 1, wherein: flange plate (1) bilateral symmetry is equipped with two outlet (3) and hole for hoist (2), and two outlet (3) can become an isosceles triangle with hole for hoist (2) central point with the line, and lifting rope (11) pass outlet (3) and hole for hoist (2) through the setting of U type buckle on flange plate (1), and lifting rope (11) upper end all hangs on lifting hook (10) of corresponding side.
4. A reinforced concrete box girder flange plate demolition arrangement according to claim 1, 2 or 3, wherein: the pulley block comprises two pulleys (8), one of the pulleys is arranged above the winch (6) in an inclined mode, and the other pulley is located above the lifting hook (10).
5. A reinforced concrete box girder flange plate demolition arrangement according to claim 1, 2 or 3, wherein: the bracket is a steel bracket formed by welding profile steels.
6. A reinforced concrete box girder flange plate demolition arrangement according to claim 1, 2 or 3, wherein: the hoist (6) is a double-drum variable-speed hoist.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122605216.9U CN216194146U (en) | 2021-10-28 | 2021-10-28 | Reinforced concrete box girder flange plate dismounting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122605216.9U CN216194146U (en) | 2021-10-28 | 2021-10-28 | Reinforced concrete box girder flange plate dismounting device |
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| Publication Number | Publication Date |
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| CN216194146U true CN216194146U (en) | 2022-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122605216.9U Active CN216194146U (en) | 2021-10-28 | 2021-10-28 | Reinforced concrete box girder flange plate dismounting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116949952A (en) * | 2023-04-07 | 2023-10-27 | 中铁六局集团有限公司 | Urban bridge dismantling method |
| CN117230730A (en) * | 2023-11-02 | 2023-12-15 | 中国水利水电第三工程局有限公司 | A construction method for dismantling large-span prestressed cast-in-place box beam supports |
-
2021
- 2021-10-28 CN CN202122605216.9U patent/CN216194146U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116949952A (en) * | 2023-04-07 | 2023-10-27 | 中铁六局集团有限公司 | Urban bridge dismantling method |
| CN117230730A (en) * | 2023-11-02 | 2023-12-15 | 中国水利水电第三工程局有限公司 | A construction method for dismantling large-span prestressed cast-in-place box beam supports |
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