CN213951956U - Dismantling system for steel box girder bottom pushing equipment - Google Patents
Dismantling system for steel box girder bottom pushing equipment Download PDFInfo
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- CN213951956U CN213951956U CN202021958015.6U CN202021958015U CN213951956U CN 213951956 U CN213951956 U CN 213951956U CN 202021958015 U CN202021958015 U CN 202021958015U CN 213951956 U CN213951956 U CN 213951956U
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- box girder
- pushing equipment
- steel box
- wire rope
- support plate
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Abstract
The utility model discloses a system is demolishd to steel box girder bottom top pushing equipment, rely on interim mound structure to set up the support frame and support the top pushing equipment temporarily when top pushing equipment demolishs in the below of super wide steel box girder, set up the hoist engine on the surface that is close to top pushing equipment, wire rope, the positioning pulley, the switching-over pulley, utilize positioning pulley guide wire rope's direction of pull, drive wire rope through the hoist engine and pull top pushing equipment to the support frame on, rethread switching-over pulley becomes the firm fulcrum when vertical as wire rope pushes up the direction of pull of equipment from the level to top, transfer the top pushing equipment after demolising of top pushing equipment completion after demolising the support frame and remove system simple structure, the equipment investment is few, demolish efficiently.
Description
Technical Field
The utility model relates to a girder top pushes away construction technical field. More specifically, the utility model relates to a system is demolishd to steel box girder bottom top pushing equipment.
Background
The Jinan Fenghuang yellow river bridge is a three-tower self-anchored suspension bridge, the main bridge is designed as a steel box girder, the width of the bridge deck is 61.7m, the interval between box-shaped cross-section webs is 14m, the bridge belongs to an ultra-wide steel box girder, and construction is carried out by adopting a jacking method. Because the jacking construction needs to guarantee the stress of the main web plate of the ultra-wide steel box girder, the jacking equipment is designed below the main web plate, a temporary pier is generally arranged on a pile foundation in order to conveniently arrange the jacking equipment, and the jacking equipment is placed above the temporary pier to facilitate jacking. After the ultra-wide steel box girder is pushed in place, the pushing equipment does not support the ultra-wide steel box girder any more, the ultra-wide steel box girder completely covers the temporary pier at the moment, and the pushing equipment is difficult to remove due to the fact that the ultra-wide steel box girder is large in width and the distance between the pushing equipment and the edge of the ultra-wide steel box girder is large.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a system is demolishd to top pushing equipment of steel box girder bottom to solve among the prior art super wide steel box girder's top pushing equipment and demolish inconvenient technical problem after using up.
In order to realize these objects and other advantages in accordance with the present invention, there is provided a steel box girder bottom pushing equipment demolition system, comprising:
the winch is fixed on the ultra-wide steel box girder and is arranged at the edge, which is close to the ultra-wide steel box girder and is positioned in the width direction;
one end of the steel wire rope is connected with the winch, and the other end of the steel wire rope is connected with the pushing equipment on the temporary pier;
the positioning pulleys are fixedly arranged on the outer surface of the ultra-wide steel box girder at intervals along the direction in which the steel wire rope is pulled from the winch to the pushing equipment;
the support frame is fixedly arranged on the outer side surface of the temporary pier, the upper end of the support frame is a horizontal support plate, and one end of the horizontal support plate is welded and fixed with the temporary pier;
the reversing pulley is fixed at the bottom of the ultra-wide steel box girder and is positioned right above the horizontal supporting plate;
the steel wire rope is led out from the winch, and is connected with the pushing equipment after sequentially passing around all the positioning pulleys or all the positioning pulleys and the reversing pulley.
Preferably, the number of the reversing pulleys is 2 along the traction direction of the pushing equipment, and the 2 reversing pulleys are all positioned right above the horizontal supporting plate.
Preferably, the positioning pulleys are respectively arranged on each side surface of the ultra-wide steel box girder along the traction direction of the steel wire rope.
Preferably, the upper surface of the horizontal support plate is located on the same horizontal plane as the upper surface of the temporary pier.
Preferably, the support frame further comprises a plurality of inclined supporting rods arranged below the horizontal supporting plate, one end of each inclined supporting rod is welded and fixed with the bottom of one side, away from the temporary pier, of the horizontal supporting plate, and the other end of each inclined supporting rod is welded and fixed with the outer side face of the temporary pier.
Preferably, the diagonal brace is provided in two.
Preferably, one end of the horizontal support plate, which is far away from the temporary pier, is also provided with a barrier strip upwards.
The utility model discloses at least, include following beneficial effect: the utility model discloses a system is demolishd to steel box girder bottom top pushing equipment relies on interim mound structure to set up the support frame and supports top pushing equipment when top pushing equipment demolishs temporarily in the below of super wide steel box girder, set up the hoist engine on the surface that is close to top pushing equipment, wire rope, the positioning pulley, the switching-over pulley, utilize positioning pulley guide wire rope's direction of pull, drive wire rope through the hoist engine and pull top pushing equipment to the support frame on, rethread switching-over pulley becomes the firm fulcrum when vertical as wire rope pushes away the direction of pull of equipment from the level to top, transfer top pushing equipment after demolising of support frame and accomplish the work of demolising of top pushing equipment, whole steel box girder bottom top pushing equipment demolishs system simple structure, the equipment investment is few, demolish efficiently.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a front view block diagram of one embodiment of the present invention;
fig. 2 is a front view structural diagram of the pushing apparatus according to an embodiment of the present invention when being pulled onto the horizontal support plate.
The specification reference numbers indicate: 1. the device comprises a winch, 2 parts of an ultra-wide steel box girder, 3 parts of a steel wire rope, 4 parts of a pushing device, 5 parts of a positioning pulley, 6 parts of a support frame, 7 parts of a temporary pier, 8 parts of a horizontal support plate, 9 parts of a reversing pulley, 10 parts of an inclined stay bar, 11 parts of a stop bar, 12 parts of a pile foundation.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
In the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1 and 2, the utility model discloses a system is demolishd to steel box girder bottom top pushing equipment, include:
the winch 1 is fixed on the ultra-wide steel box girder 2 and is arranged at the edge, which is close to the ultra-wide steel box girder 2 and is positioned in the width direction;
one end of the steel wire rope 3 is connected with the winch 1, and the other end of the steel wire rope is connected with the pushing equipment 4 on the temporary pier 7;
the positioning pulleys 5 are fixedly arranged on the outer surface of the ultra-wide steel box girder 2 at intervals along the direction that the steel wire rope 3 is drawn from the winch 1 to the pushing device 4;
the support frame 6 is fixedly arranged on the outer side surface of the temporary pier 7, the upper end of the support frame is a horizontal support plate 8, and one end of the horizontal support plate 8 is fixedly welded with the temporary pier 7;
the reversing pulley 9 is fixed at the bottom of the ultra-wide steel box girder 2 and is positioned right above the horizontal support plate 8;
the steel wire rope 3 is led out from the winch 1, sequentially bypasses all the positioning pulleys 5 or all the positioning pulleys 5 and the reversing pulley 9, and then is connected with the pushing device 4.
The use method of the steel box girder bottom pushing equipment dismantling system comprises the following steps:
(1) the pile foundation 12 is provided with a temporary pier 7, the pushing equipment 4 is placed on the temporary pier 7, the temporary pier is used for supporting the pushing equipment, when the pushing equipment pushes the ultra-wide steel box girder in place, a winch is arranged on the ultra-wide steel box girder, the winch is a power mechanism of the steel box girder bottom pushing equipment detaching system, one end of a steel wire rope is connected with the winch, a plurality of guide pulleys are welded on the ultra-wide steel box girder according to the traction path and the direction of the steel wire rope which is wound and unwound by the winch after the other end of the steel wire rope is connected with the pushing equipment, and a support frame is welded and fixed on the outer side surface of the temporary pier, so that a horizontal support plate of the support frame is kept horizontal and is stably installed, then the free end of the steel wire rope is connected with the pushing equipment by bypassing all the positioning pulleys, or the free end of the steel wire rope is wound around all the positioning pulleys and then continuously wound around the reversing pulley and then connected with the pushing equipment.
(2) And starting the winch to wind the steel wire rope, dragging the pushing equipment to the position below the positioning pulley from the temporary pier, namely completely locating the pushing equipment on the horizontal support plate, supporting the pushing equipment through the support frame, and if the free end of the steel wire rope is directly connected with the pushing equipment after bypassing all the positioning pulleys, detaching one end of the steel wire rope connected with the pushing equipment at the moment, changing the winding mode of the steel wire rope, and enabling the free end of the steel wire rope to be connected with the pushing equipment after bypassing the reversing pulley. If the free end of the steel wire rope firstly sequentially bypasses all the positioning pulleys and the reversing pulleys and then is connected with the pushing equipment, the subsequent steps are directly carried out after the free end is completely positioned on the horizontal supporting plate.
(3) And (4) dismantling the support frame, releasing the steel wire rope by using the winch, lowering the pushing equipment to the ground, and completing the dismantling of the pushing equipment.
The utility model discloses a system is demolishd to steel box girder bottom top pushing equipment relies on interim mound structure to set up the support frame and supports top pushing equipment when top pushing equipment demolishs temporarily in the below of super wide steel box girder, set up the hoist engine on the surface that is close to top pushing equipment, wire rope, the positioning pulley, the switching-over pulley, utilize positioning pulley guide wire rope's direction of pull, drive wire rope through the hoist engine and pull back top pushing equipment to the support frame on, rethread switching-over pulley becomes the firm fulcrum when vertical as wire rope pushes away the direction of pull of equipment from the level, transfer top pushing equipment after demolising the support frame and accomplish the work of demolising of top pushing equipment, whole steel box girder bottom top pushing equipment demolishs system simple structure, the equipment investment is few, demolish efficiently.
In another technical scheme, as shown in fig. 1 and 2, 2 diverting pulleys 9 are arranged along the traction direction of the pushing device 4, and 2 diverting pulleys 9 are all located right above the horizontal support plate 8.
When the traction direction of the opposite pushing equipment is changed to be vertical, the traction process is more stable after the steel wire rope bypasses two reversing pulleys serving as the supporting points of the pushing equipment, and the direction of the steel wire rope wound around the reversing pulleys can be flexibly adjusted according to the sizes of different pushing equipment or the positions of the pushing equipment below the reversing pulleys, so that the horizontal displacement of the end, connected with the pushing equipment, of the steel wire rope is adjusted.
In another technical scheme, as shown in fig. 1 and 2, one positioning pulley 5 is arranged on each side surface of the ultra-wide steel box girder 2 along the traction direction of the steel wire rope 3.
Based on the shape of the ultra-wide steel box girder, a plurality of planes with different included angles with the horizontal plane are arranged at two ends in the width direction, the steel wire rope changes the traction direction from the upper part of the ultra-wide steel box girder to be led into the lower part of the ultra-wide steel box girder, the traction direction basically generates the change of nearly 180 degrees, therefore, a positioning pulley is respectively arranged on each side surface of the ultra-wide steel box girder, which changes the included angle with the horizontal plane, the traction direction of the steel wire rope can generate a better guiding effect, and the steel wire rope is prevented from directly rubbing the surface of the ultra-wide steel box girder at a corner to cause abrasion and resistance.
In another technical solution, as shown in fig. 1 and 2, the upper surface of the horizontal support plate 8 and the upper surface of the temporary pier 7 are located on the same horizontal plane. The arrangement makes the pushing equipment stably reach the support frame under the traction action of the steel wire rope, and reduces the impulse or resistance generated in the traction process.
In another technical solution, as shown in fig. 1 and 2, the support frame 6 further includes a plurality of diagonal braces 10 disposed below the horizontal support plate 8, one end of each diagonal brace 10 is welded and fixed to the bottom of one side of the horizontal support plate 8 away from the temporary pier 7, and the other end is welded and fixed to the outer side of the temporary pier 7. The support frame comprises a backup pad and several diagonal braces, simple structure, and the welding is demolishd the convenience.
In another technical solution, as shown in fig. 1 and 2, two diagonal braces 10 are provided. Two diagonal brace can support the one end of horizontal support plate respectively, and it is more convenient to weld and demolish, and the material drops into lowly.
In another technical scheme, as shown in fig. 1 and 2, a barrier strip 11 is further arranged upwards at one end of the horizontal support plate 8 far away from the temporary pier 7.
When the barrier strip is arranged, when the winch winds the steel wire rope too fast, accidents can be avoided, the pushing device can be prevented from rushing out of the support frame under the non-blocking condition, the barrier strip can also be arranged to provide a stopping point when the pushing device is dragged to the horizontal support plate, the pushing device stops the winch to wind the steel wire rope immediately when reaching the barrier strip position, the steel wire rope is dismantled, and the reversing pulley is wound, so that the traction end of the steel wire rope or the position of the pushing device does not need to be adjusted frequently.
While the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields where the invention is suitable, and further modifications may readily be made by those skilled in the art, and the invention is thus not limited to the specific details and herein shown and described in fig. 1, 2, without departing from the general concept defined by the claims and their equivalents.
Claims (7)
1. System is demolishd to steel box girder bottom top pushing equipment, its characterized in that includes:
the winch is fixed on the ultra-wide steel box girder and is arranged at the edge, which is close to the ultra-wide steel box girder and is positioned in the width direction;
one end of the steel wire rope is connected with the winch, and the other end of the steel wire rope is connected with the pushing equipment on the temporary pier;
the positioning pulleys are fixedly arranged on the outer surface of the ultra-wide steel box girder at intervals along the direction in which the steel wire rope is pulled from the winch to the pushing equipment;
the support frame is fixedly arranged on the outer side surface of the temporary pier, the upper end of the support frame is a horizontal support plate, and one end of the horizontal support plate is welded and fixed with the temporary pier;
the reversing pulley is fixed at the bottom of the ultra-wide steel box girder and is positioned right above the horizontal supporting plate;
the steel wire rope is led out from the winch, and is connected with the pushing equipment after sequentially passing around all the positioning pulleys or all the positioning pulleys and the reversing pulley.
2. The system for dismantling the pushing equipment at the bottom of the steel box girder of claim 1, wherein 2 diverting pulleys are arranged along the traction direction of the pushing equipment, and the 2 diverting pulleys are all positioned right above the horizontal support plate.
3. The steel box girder bottom pushing device dismantling system as claimed in claim 1, wherein said positioning pulleys are provided one on each side of the ultra-wide steel box girder in a drawing direction of said wire rope.
4. The steel box girder bottom jacking device dismantling system as claimed in claim 1, wherein an upper surface of the horizontal support plate is located on the same horizontal plane as an upper surface of the temporary pier.
5. The steel box girder bottom pushing equipment dismantling system as claimed in claim 1, wherein the support frame further comprises a plurality of diagonal braces arranged below the horizontal support plate, one end of each diagonal brace is welded and fixed with the bottom of one side of the horizontal support plate far away from the temporary pier, and the other end of each diagonal brace is welded and fixed with the outer side surface of the temporary pier.
6. The steel box girder bottom pushing equipment dismantling system as claimed in claim 5, wherein there are two diagonal braces.
7. The steel box girder bottom pushing equipment dismantling system as claimed in claim 1, wherein an end of the horizontal support plate far away from the temporary pier is further provided with a barrier strip upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021958015.6U CN213951956U (en) | 2020-09-09 | 2020-09-09 | Dismantling system for steel box girder bottom pushing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021958015.6U CN213951956U (en) | 2020-09-09 | 2020-09-09 | Dismantling system for steel box girder bottom pushing equipment |
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| Publication Number | Publication Date |
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| CN213951956U true CN213951956U (en) | 2021-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021958015.6U Active CN213951956U (en) | 2020-09-09 | 2020-09-09 | Dismantling system for steel box girder bottom pushing equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113818354A (en) * | 2021-09-29 | 2021-12-21 | 中交第二航务工程局有限公司 | Method for quickly dismantling temporary support under condition of limited vertical space |
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2020
- 2020-09-09 CN CN202021958015.6U patent/CN213951956U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113818354A (en) * | 2021-09-29 | 2021-12-21 | 中交第二航务工程局有限公司 | Method for quickly dismantling temporary support under condition of limited vertical space |
| CN113818354B (en) * | 2021-09-29 | 2023-05-23 | 中交第二航务工程局有限公司 | Quick dismantling method for temporary support under condition of limited vertical space |
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