CN107618999B - Hoisting tool and hoisting method for narrow space of bridge beam bottom and pier stud - Google Patents
Hoisting tool and hoisting method for narrow space of bridge beam bottom and pier stud Download PDFInfo
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- CN107618999B CN107618999B CN201710905837.4A CN201710905837A CN107618999B CN 107618999 B CN107618999 B CN 107618999B CN 201710905837 A CN201710905837 A CN 201710905837A CN 107618999 B CN107618999 B CN 107618999B
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- bearing frame
- pier column
- fixed pulley
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 238000010276 construction Methods 0.000 claims abstract description 9
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000002131 composite material Substances 0.000 abstract description 2
- 230000007306 turnover Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Abstract
A hoisting tool for a narrow space between a bridge bottom and a pier column comprises hoisting equipment, a chain block and a fixed pulley fixing device. The bearing frame of the fixed pulley fixing device is fixed on the top of the pier column. The bearing frame is provided with a cantilever hanging frame which can rotate and is connected with the fixed pulley. The cantilever hanging frame is controlled by the chain block, and the hoisting equipment can hoist the jacking equipment or materials to the operation site at the narrow space of the beam bottom and the pier column, so as to finish the jacking or repairing construction operation of the steel box beam. The hoisting tool and the hoisting method for the narrow space between the bridge bottom and the pier column solve the problems that hoisting equipment is adopted to hoist the narrow space between the bridge bottom and the pier column top, so that a hoisting point cannot be welded, and the safety and the stability of the permanent magnet sucker hoisting point are poor. The invention does not need to use a large hoisting machine. The invention has high lifting efficiency, strong safety, high turnover rate and wide application range, is not limited by environment, and is particularly suitable for lifting machines and members in narrow spaces between the bottom of the steel-concrete composite beam bridge and the tops of the pier columns.
Description
Technical Field
The invention relates to a lifting tool, in particular to a lifting tool and a lifting method for a narrow space of a bridge bottom and a pier column.
Background
The steel-concrete combined bridge in the viaduct needs to solve the problem of stress in the hogging moment area of the steel-concrete combined continuous beam structure by adopting a pre-jacking support method, but because of the specificity of a construction site, the jacking equipment or materials are very inconvenient to convey to the preset position at the pier column top. If large machines such as a crane, a lifter, a forklift and the like are adopted to implement on-site jacking operation, the jacking equipment or materials cannot be smoothly conveyed to a set position at a pier top support under the limit of the height and space of a bridge, and the equipment is high in manufacturing cost, low in work efficiency and extremely inconvenient to operate; if hoisting equipment is adopted for hoisting, the problem that the hoisting equipment cannot be used as the fixed pulley cannot be installed and fixed because the bottom of the steel box girder is not allowed to be welded with a hoisting point exists; if the permanent magnetic chuck is adopted, the magnetic force safety stability of the lifting point of the permanent magnetic chuck is poor, the fixed pulley is unstable, and the problem of serious potential safety hazard occurs.
Disclosure of Invention
The invention aims to provide a lifting tool for a narrow space between the bottom of a bridge beam and a pier, which has the advantages of simple structure, simple and convenient operation, high use efficiency, firm fixed pulleys, safe use and capability of lifting equipment or materials to a preset position at a pier top support.
The object of the present invention can be achieved. The invention relates to a hoisting tool for a narrow space between a bridge bottom and a pier column, which comprises a set of hoisting equipment and a chain block, and is characterized in that: the lifting tool for the narrow space of the bridge beam bottom and the pier column further comprises a fixed pulley fixing device, the fixed pulley fixing device is composed of a bearing frame, an inverted L-shaped cantilever hanging frame and a fixed pulley, the upper surface of the bearing frame is provided with a plurality of portable jacks, the bearing frame is fixed on the top of the pier column through the top support of the portable jacks and the bridge beam bottom, an upper clamping ring is welded at the center of the upper part of the bearing frame, a bearing is symmetrically arranged at the center of the lower part of the bearing frame, a hollow cylinder is jointly installed on the center of the upper clamping ring and the bearing, the inverted L-shaped cantilever hanging frame is composed of two parts of a rotating arm with the flat upper part and a rotating shaft with the vertical lower part, the cantilever is inserted into a cavity of the hollow cylinder through the rotating shaft, the outer end of the cantilever hanging arm is provided with a hanging hole, a hanging ring is connected to the hanging ring, a steel rope of a hoisting device passes through the hanging fixed pulley to be connected with the hanging ring in a sliding mode, and one end of a hoisting chain is connected with the hanging hole of the hanging frame.
The hoisting tool is used for a small space between the bottom of a bridge beam and a pier column, wherein the cantilever hanging frame is driven by a chain hoist lifting chain and is provided with a rotating track on a bearing frame through a rotating shaft.
The lifting tool is used for a narrow space between the bridge bottom and the pier stud, wherein the bearing frame is formed by welding channel steel into a tetragonal body.
The invention further aims to provide a lifting method for lifting the tool at the narrow space of the bridge beam bottom and the pier stud. The lifting method for the lifting tool at the narrow space of the bridge beam bottom and the pier column is completed through the following steps:
step 1, firstly arranging and installing hoisting equipment and a chain block on a construction site according to process requirements.
And 2, conveying the bearing frame to the upper surface of the pier column top, then placing a plurality of light jacks on the bearing frame, and fixing the bearing frame on the pier column top through the jacking of the plurality of light jacks to the bridge beam bottom.
And 3, inserting the rotating shaft end of the cantilever hanging frame connected with the fixed pulley into a hollow cylinder of the bearing frame, and checking that the cantilever hanging frame should flexibly rotate on the bearing frame.
Step 4, connecting one end of a hoisting chain of the manual hoist with the cantilever hanging frame through a hanging hole of the cantilever hanging frame; the steel rope of the hoisting equipment is connected with the fixed pulley in a sliding way.
And 5, hanging lifting equipment or materials to be lifted on the tail end of the steel cable of the hoisting equipment.
And 6, starting hoisting equipment, hoisting the jacking equipment or the materials to a preset height of a construction site, operating a chain block to rotate a cantilever hanger, rotating the jacking equipment or the materials to a preset position, and finally transporting the jacking equipment or the materials to a support saddle of the pier column top through a slideway by using the chain block to jack up a designated position, so as to finish hoisting operation.
The hoisting tool and the hoisting method for the narrow space of the bridge beam bottom and the pier column are different from the prior art in that the hoisting tool for the narrow space of the bridge beam bottom and the pier column is composed of hoisting equipment, a chain block and a fixed pulley fixing device. The bearing frame of the fixed pulley fixing device is fixed on the top of the pier column. The bearing frame is provided with a cantilever hanging frame which can rotate and is connected with the fixed pulley. The cantilever hanging frame is controlled by the chain block, and the hoisting equipment can hoist the jacking equipment or materials to the operation site at the narrow space of the beam bottom and the pier column, so as to finish the jacking or repairing construction operation of the steel box beam. The hoisting tool and the hoisting method for the narrow space of the bridge bottom and the pier column solve the problems that hoisting equipment is adopted to hoist the narrow space of the bridge bottom and the pier column top, so that a hoisting point can not be welded, and the safety and the stability of the permanent magnet sucker hoisting point are poor. The hoisting tool and the hoisting method for the narrow space of the bridge beam bottom and the pier column do not need to use a large hoisting machine. The invention has high lifting efficiency, strong safety, high turnover rate and wide application range, is not limited by environment, and is particularly suitable for lifting machines and members in narrow spaces between the bottom of the steel-concrete composite beam bridge and the tops of the pier columns.
The invention further provides a lifting tool and a lifting method for a narrow space of a bridge beam bottom and a pier column by combining with the attached drawings.
Drawings
Fig. 1 is a schematic structural diagram of a lifting tool for a narrow space between a bridge bottom and a pier column.
Fig. 2 is a schematic front view of the fixed pulley fixing device of the present invention.
Fig. 3 is a schematic top view of the fixed sheave fixing apparatus.
Detailed Description
As shown in fig. 1, the lifting tool for the narrow space between the bridge bottom and the pier column comprises a set of hoisting equipment 8, a chain block 11 and a set of fixed pulley fixing device.
As shown in fig. 1, 2 and 3, the fixed pulley fixing device is composed of a bearing frame 1, an inverted L-shaped cantilever hanging frame 2 and a fixed pulley 4. The bearing frame 1 is formed by welding channel steel into a tetragonal body. The upper surface of the bearing frame 1 is provided with a plurality of portable jacks 5, and the bearing frame 1 is fixed on the pier column top 6 through the portable jacks 5 and the top support of the bridge beam bottom 7. The bearing frame 1 is welded with an upper clamping ring 1-1 at the center of the upper part, and a force bearing 1-2 is symmetrically fixed on the upper clamping ring 1-1 at the center of the lower part. The center of the upper clamping ring 1-1 and the bearing 1-2 are jointly provided with a hollow cylinder 1-3. The inverted L-shaped cantilever hanging frame 2 consists of a rotating arm with a flat upper part and a rotating shaft with a vertical lower part. The cantilever hanging frame 2 is inserted in the cavity of the hollow cylinder 1-3 through a rotating shaft, a hanging hole 2-1 is arranged at the outer end of a rotating arm of the cantilever hanging frame 2, a hanging ring 3 is connected to the hanging hole 2-1, a fixed pulley 4 is hung on the hanging ring 3, a steel rope 9 of the hoisting equipment 8 passes through the hanging ring 3 to be in sliding connection with the fixed pulley 4, and one end of a lifting chain of the chain block 11 is connected with the hanging hole 2-1 of the cantilever hanging frame 2.
In the hoisting tool used for the narrow space of the bridge beam bottom and the pier column, the cantilever hanging frame 2 is driven by a chain block 11 hoisting chain and can rotate on the bearing frame 1 through a rotating shaft.
The lifting method for the lifting tool at the narrow space of the bridge beam bottom and the pier column comprises the following steps:
step 1, firstly arranging and installing the hoisting equipment 8 and the chain block 11 on a construction site according to the process requirements.
And 2, conveying the bearing frame 1 to the upper surface of the pier column top 6, placing a plurality of light jacks 5 on the bearing frame 1, and pressing and fixing the bearing frame 1 on the pier column top 6 through propping the bridge beam bottom 7 by the light jacks 5.
And 3, inserting the rotating shaft end of the cantilever hanging frame 2 connected with the fixed pulley 4 into the hollow cylinder 1-3 of the bearing frame 1, and checking that the cantilever hanging frame 2 should flexibly rotate on the bearing frame 1.
Step 4, connecting one end of a hoisting chain of the manual hoist 11 with the cantilever hanging frame 2 through a hanging hole 2-1 of the cantilever hanging frame 2; the wire rope 9 of the hoisting device 8 is slidingly connected with the fixed sheave 4.
And 5, hanging a jacking device or material 10 to be hoisted on the tail end of the steel cable 9 of the hoisting device 8.
And 6, starting hoisting equipment 8, hoisting jacking equipment or materials 10 to a preset height of a construction site, operating a chain block 11 to rotate a cantilever hanger 2, rotating the jacking equipment or materials 10 to a preset position, and finally transporting the jacking equipment or materials 10 to a support jacking appointed position of a pier column top 6 through a slideway by using the chain block 11 to finish hoisting operation.
The above examples are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solution of the present invention should fall within the scope of protection defined by the claims of the present invention without departing from the spirit of the design of the present invention.
Claims (4)
1. The lifting method is characterized in that the lifting tool used for the small space of the bridge beam bottom and the pier column comprises a set of hoisting equipment (8) and a chain block (11), and further comprises a set of fixed pulley fixing device, wherein the fixed pulley fixing device comprises a bearing frame (1), an inverted L-shaped cantilever hanging frame (2) and a fixed pulley (4), a plurality of portable jacks (5) are arranged on the upper surface of the bearing frame (1), the bearing frame (1) is fixed on a pier column top (6) through the jacks (5) and the top support of the bridge beam bottom (7), and one end of a hoisting chain of the chain block (11) is connected with a hanging hole (2-1) of the cantilever hanging frame (2), and the method comprises the following steps:
step 1, firstly arranging and installing hoisting equipment (8) and a chain block (11) on a construction site according to the process requirements,
step 2, conveying the bearing frame (1) to the upper surface of the pier column top (6), then placing a plurality of light jacks (5) on the bearing frame (1) and fixing the bearing frame 1 on the pier column top (6) through the jacking of the bridge beam bottom (7) by the light jacks (5),
step 3, inserting the rotating shaft end of the cantilever hanging frame (2) connected with the fixed pulley (4) into the hollow cylinder (1-3) of the bearing frame (1), checking that the cantilever hanging frame (2) should flexibly rotate on the bearing frame (1),
step 4, connecting one end of a hoisting chain of the manual hoist (11) with the cantilever hanging frame (2) through a hanging hole (2-1) of the cantilever hanging frame (2); the steel cable (9) of the hoisting equipment (8) is connected with the fixed pulley (4) in a sliding way,
step 5, hanging a jacking device or a material (10) to be hoisted at the tail end of a steel cable (9) of hoisting equipment (8),
and 6, starting hoisting equipment (8), hoisting the jacking equipment or the material (10) to a preset height of a construction site, operating a chain block (11) to rotate the cantilever hanging frame (2), rotating the jacking equipment or the material (10) to a preset position, and finally transporting the jacking equipment or the material (10) to a support saddle jacking appointed position of a pier column top (6) through a slideway by using the chain block (11), so as to finish hoisting operation.
2. The lifting method for lifting tools at narrow spaces of bridge bottoms and pier columns by using the method according to claim 1, wherein the method comprises the following steps: the bearing frame (1) is welded with an upper clamping ring (1-1) at the center of the upper part, a bearing (1-2) is symmetrically fixed at the center of the lower part and at the upper clamping ring (1-1), a hollow cylinder (1-3) is jointly installed at the center of the upper clamping ring (1-1) and the bearing (1-2), an inverted L-shaped cantilever hanging frame (2) is composed of two parts of a rotating arm with a straight upper part and a rotating shaft with a vertical lower part, the cantilever hanging frame (2) is inserted into a cavity of the hollow cylinder (1-3) through the rotating shaft, a hanging hole (2-1) is formed in the outer end of the rotating arm of the cantilever hanging frame (2), a hanging ring (3) is connected to the hanging hole (2-1), a fixed pulley (4) is hung on the hanging ring (3), and a steel cable (9) of a hoisting device (8) is connected with the fixed pulley (4) in a sliding mode through the hanging ring (3).
3. The lifting method for lifting tools at narrow spaces of bridge bottoms and pier columns by using the method according to claim 2, wherein the method comprises the following steps: the cantilever hanging frame (2) is driven by a hoisting chain of the chain block (11) and is provided with a rotating track on the bearing frame (1) through a rotating shaft.
4. A lifting method for a lifting tool used in a narrow space between a bridge bottom and a pier column according to claim 2 or 3, characterized in that: the bearing frame (1) is formed by welding channel steel into a tetragonal body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710905837.4A CN107618999B (en) | 2017-09-29 | 2017-09-29 | Hoisting tool and hoisting method for narrow space of bridge beam bottom and pier stud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710905837.4A CN107618999B (en) | 2017-09-29 | 2017-09-29 | Hoisting tool and hoisting method for narrow space of bridge beam bottom and pier stud |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107618999A CN107618999A (en) | 2018-01-23 |
| CN107618999B true CN107618999B (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710905837.4A Active CN107618999B (en) | 2017-09-29 | 2017-09-29 | Hoisting tool and hoisting method for narrow space of bridge beam bottom and pier stud |
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| Country | Link |
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| CN (1) | CN107618999B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111039169A (en) * | 2019-11-15 | 2020-04-21 | 沪东中华造船(集团)有限公司 | Ship equipment module hoisting method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0859174A (en) * | 1994-08-16 | 1996-03-05 | Shimizu Corp | Movable suspension jig for steel frame erection, and method for locating steel frame using the jig |
| KR20090031699A (en) * | 2009-01-28 | 2009-03-27 | 이연철 | Jib crane for constructing a bridge and the method using the same |
| CN204310721U (en) * | 2014-11-27 | 2015-05-06 | 上海江南长兴造船有限责任公司 | A kind of overhead hoist for the lifting of narrow regions slab |
| CN106395625A (en) * | 2016-11-08 | 2017-02-15 | 芜湖市长江起重设备制造有限公司 | Cantilever crane lifting appliance swing-relieving device capable of preventing wind drag swing |
| CN206359154U (en) * | 2017-01-06 | 2017-07-28 | 河北敬业钢构科技股份有限公司 | A kind of steel construction secondary member hoisting device |
| CN207209830U (en) * | 2017-09-29 | 2018-04-10 | 中建交通建设集团有限公司 | For the hoisting tooling at Bridge Beam bottom and pier stud small space |
-
2017
- 2017-09-29 CN CN201710905837.4A patent/CN107618999B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0859174A (en) * | 1994-08-16 | 1996-03-05 | Shimizu Corp | Movable suspension jig for steel frame erection, and method for locating steel frame using the jig |
| KR20090031699A (en) * | 2009-01-28 | 2009-03-27 | 이연철 | Jib crane for constructing a bridge and the method using the same |
| CN204310721U (en) * | 2014-11-27 | 2015-05-06 | 上海江南长兴造船有限责任公司 | A kind of overhead hoist for the lifting of narrow regions slab |
| CN106395625A (en) * | 2016-11-08 | 2017-02-15 | 芜湖市长江起重设备制造有限公司 | Cantilever crane lifting appliance swing-relieving device capable of preventing wind drag swing |
| CN206359154U (en) * | 2017-01-06 | 2017-07-28 | 河北敬业钢构科技股份有限公司 | A kind of steel construction secondary member hoisting device |
| CN207209830U (en) * | 2017-09-29 | 2018-04-10 | 中建交通建设集团有限公司 | For the hoisting tooling at Bridge Beam bottom and pier stud small space |
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| CN107618999A (en) | 2018-01-23 |
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