CN104532747B - Chain block artificial single-point sync pulling equipment and engineering method - Google Patents
Chain block artificial single-point sync pulling equipment and engineering method Download PDFInfo
- Publication number
- CN104532747B CN104532747B CN201410776409.2A CN201410776409A CN104532747B CN 104532747 B CN104532747 B CN 104532747B CN 201410776409 A CN201410776409 A CN 201410776409A CN 104532747 B CN104532747 B CN 104532747B
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- China
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- steel wire
- wire rope
- section
- rotating disk
- chain block
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/08—Methods or apparatus specially adapted for erecting or assembling bridges by rotational movement of the bridge or bridge sections
Abstract
The invention provides a kind of chain block be applicable to Bridge Rotation Construction Technique distraction procedure artificial single-point sync pulling equipment and engineering method, this invention utilizes the steering-effecting of fixed pulley to be merged into after the traction steer of one section of steel wire rope on another section of steel wire rope, 2, the rotating disk two ends traction making routine is converted into single traction, achieve traction to synchronize, the common stress in two ends and pull strength purpose of the same size.This engineering method equipment composition is the lightest, also can reach the purpose of convenient transportation, be greatly saved working measure expense, reduce project total cost in the case of execution conditions are limited.
Description
Technical field
The invention belongs to technical field of bridge construction, the chain block artificial single-point sync pulling equipment being specifically related in a kind of Bridge Rotation Construction Technique and engineering method.
Background technology
Bridge Rotation Construction Technique refers to by bridge structure after non-design axial location makes and shapes, by a kind of construction method in place of turning.Rotator construction is compared with the construction technologies such as conventional free cantilever erection, cantilever pouring, cast-in-situ, have do not disturb traffic, uninterrupted navigation, can be across zanjon, river, traffic road frequently, and the advantages such as quick, economic benefit height of constructing, it is used in bridge construction more and more widely.Bridge Rotation Construction Technique, according to rotation direction, can be divided into the construction method that vertical turn method, level swing method and vertical transfer combine with flat turn.
Wherein, level swing method is a kind of to use more method, and in level swing method, pull strength needs the couple of a pair symmetry, and the two power size need to keep consistent when traction.At present, large bridge is turned in traction at home, have employed hydraulic jack sync pulling control technology and can solve this problem well.But, existing railway line be located in remote, have inconvenient traffic, narrow space, large-scale plant is just difficult to march into the arena.And overpass rotational structure weight is little (typically within 1000t), general pull strength design load, within 20t, also there is no need to use large hydraulic pulling equipment.
Summary of the invention
For above-mentioned deficiency, the first object of the present invention is to provide the sync pulling equipment of a kind of miniaturization, it is ensured that can also conveniently transport in the case of execution conditions are limited, and can save working measure expense, reduces construction costs.
The second object of the present invention is to provide a kind of sync pulling engineering method in Bridge Rotation Construction Technique, to reach to keep rotating disk two ends pull strength in the same size and can realize the purpose of sync pulling.
First purpose of the present invention is realized by following technical proposals:
A kind of chain block artificial single-point sync pulling equipment, including rotating disk, steel wire rope, guide concrete anchor pile, chain block concrete anchor pile, fixed pulley, pulley and chain block, the A section of described steel wire rope is wrapped on rotating disk clockwise or counterclockwise, the B section of steel wire rope and the A section of steel wire rope are wrapped on rotating disk in the same direction, described fixed pulley is fixed on guiding concrete anchor pile, the A section of described steel wire rope changes lead through fixed pulley, the B section of described steel wire rope links together through A section with steel wire rope after pulley, the A section of described steel wire rope is through the steel wire rope being parallel to pulley and rotating disk after fixed pulley, one end of described pulley is connected on chain block concrete anchor pile by chain block.
Further, the A end of described rotating disk and B end are respectively provided with a traction draw ring, and the A section of described steel wire rope is through the traction draw ring of rotating disk A end, and the B section of described steel wire rope is through the traction draw ring of rotating disk B end.Rotating disk rotates when, the A section of steel wire rope and B section can be played a guide effect by traction draw ring.
Further, between described chain block and its chain block concrete anchor pile mounted, it is also associated with strain gauge, for reading the size of pull strength.
Further, the A section of described steel wire rope is linked together by U-bolt with the B section of steel wire rope.U-bolt can allow the A section of steel wire rope tightr with what B section was connected.
Further, described fixed pulley is 2, is divided into the first fixed pulley and the second fixed pulley；Described guiding concrete anchor pile is 2, is divided into the first guiding concrete anchor pile and second to guide concrete anchor pile；Described first fixed pulley is fixed on the first guiding concrete anchor pile, and described second fixed pulley is fixed on the second guiding concrete anchor pile.
Second purpose of the present invention is realized by following technical proposals:
A kind of chain block artificial single-point sync pulling engineering method, comprises the following steps:
(1) if rotating disk rotation direction is that then the A section wound clockwise of steel wire rope is on rotating disk, and the B section also wound clockwise of steel wire rope is on rotating disk clockwise；If rotating disk rotation direction is that then the A section wrapped anti-clockwise of steel wire rope is on rotating disk, and the B section also wrapped anti-clockwise of steel wire rope is on rotating disk counterclockwise；
(2) arrange two in rotating disk side and guide concrete anchor pile, and fix a fixed pulley on each guiding concrete anchor pile, for changing the pull strength direction of the A section of steel wire rope, at rotating disk opposite side, one chain block concrete anchor pile is set, a link is fixed on chain block concrete anchor pile, one end of strain gauge is mounted on link, one end of the other end mounting chain block of strain gauge, chain block other end mounting pulley；
(3) the A end at rotating disk is respectively provided with a traction draw ring with B end, after the A section of steel wire rope passes the traction draw ring of rotating disk A end, is then passed through two fixed pulleys guided on concrete anchor pile, changes the pull strength direction of the A section of steel wire rope；
(4) the B section of steel wire rope is then passed through pulley after the traction draw ring of rotating disk B end, is fixed together with the A section U-bolt of steel wire rope, now, steel wire rope A section after second fixed pulley, the steel wire rope being parallel between rotating disk and pulley；
(5) by artificial hand zip strip calabash, drive rotating disk to rotate so that the A section of steel wire rope and B segment sync stress, and pull strength is in the same size so that the traction of 2, two ends is converted into single traction, thus realizes artificial single-point sync pulling.
The invention has the beneficial effects as follows: this chain block artificial single-point sync pulling engineering method, can ensure that the pull strength at rotating disk two ends is in the same size, two ends pull strength can be allowed to be converted into single traction, it is achieved the purpose that traction synchronizes.The method is simple to operate simultaneously, is conducive to implementing.This chain block artificial single-point sync pulling equipment, easy to use, in the case of execution conditions are limited, also can reach the purpose of convenient transportation, are greatly saved working measure expense, reduce project total cost.
Accompanying drawing explanation
Fig. 1 is chain block of the present invention artificial single-point sync pulling site plan.
Labelling in figure, 1 is rotating disk, and 2 is traction draw ring, 3-1 is the A section of steel wire rope, and 3-2 is the B section of steel wire rope, and 4-1 is the first guiding concrete anchor pile, 4-2 is the second guiding concrete anchor pile, 5-1 is the first fixed pulley, and 5-2 is the second fixed pulley, and 6 is U-bolt, 7 is chain block, 8 is strain gauge, and 9 is pulley, and 10 is chain block concrete anchor pile.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed.
As shown in Figure 1, a kind of chain block artificial single-point sync pulling equipment, including rotating disk 1, traction draw ring 2, A section 3-1 of steel wire rope, B section 3-2 of steel wire rope, guide concrete anchor pile, chain block concrete anchor pile 10, fixed pulley, U-bolt 6, chain block 7, strain gauge 8 and pulley 9, fixed pulley is fixed on guiding concrete anchor pile, traction draw ring 2 is separately positioned on the side a and b of rotating disk 1, strain gauge 8 is connected between chain block concrete anchor pile 10 and chain block 7, and chain block 7 connects pulley 9.
Rotation direction according to rotating disk 1 determines A section 3-1 of steel wire rope and B section 3-2 of the steel wire rope winding direction around rotating disk 1, in this embodiment, rotating disk 1 rotation direction is clockwise, then it is wound around in the A section 3-1 clockwise direction of steel wire rope, it is wound around under the B section 3-2 clockwise direction of steel wire rope, wherein, the number of turns that A section 3-1 of steel wire rope and its B section 3-2 are wound around is determined by rotating disk 1 edge rotation distance.After A section 3-1 of steel wire rope is passed the traction draw ring 2 of rotating disk 1 A end, it is then passed through two fixed pulleys and changes leads.After the B section of steel wire rope passes the traction draw ring 2 of rotating disk 1B end, it is then passed through the A section 3-1 U-bolt 6 of pulley 9 and steel wire rope to tighten and link together, make two sections of common stress of A, B of steel wire rope, thus ensure that the pull strength at the two ends of rotating disk 1 is in the same size, rotating disk 1 is driven to rotate by pulling chain block 7, thus the other end of steel wire rope will be merged into after the traction steer of steel wire rope one end, make the traction of 2, turning hinge two ends be converted into single traction, it is achieved that the purpose that artificial single traction synchronizes.
Chain block of the present invention artificial single-point sync pulling engineering method, comprises the following steps:
(1) if rotating disk rotation direction is that then the A section wound clockwise of steel wire rope is on rotating disk, and the B section also wound clockwise of steel wire rope is on rotating disk clockwise；If rotating disk rotation direction is that then the A section wrapped anti-clockwise of steel wire rope is on rotating disk, and the B section also wrapped anti-clockwise of steel wire rope is on rotating disk counterclockwise；
(2) arrange two in rotating disk side and guide concrete anchor pile, and fix a fixed pulley on each guiding concrete anchor pile, for changing the pull strength direction of the A section of steel wire rope, at rotating disk opposite side, one chain block concrete anchor pile is set, a link is fixed on chain block concrete anchor pile, one end of strain gauge is mounted on link, one end of the other end mounting chain block of described strain gauge, chain block other end mounting pulley；
(3) the A end at rotating disk is respectively provided with a traction draw ring with B end, after the A section of steel wire rope passes the traction draw ring of rotating disk A end, is then passed through two fixed pulleys guided on concrete anchor pile, changes the pull strength direction of the A section of steel wire rope；
(4) the B section of steel wire rope is then passed through pulley after the traction draw ring of rotating disk B end, is fixed together with the A section U-bolt of steel wire rope, now, steel wire rope A section after second fixed pulley, the steel wire rope being parallel between rotating disk and pulley；
(5) by artificial hand zip strip calabash, drive rotating disk to rotate so that the A section of steel wire rope and B segment sync stress, and pull strength is in the same size so that the traction of 2, two ends is converted into single traction, thus realizes artificial single-point sync pulling.
Claims (4)
- null1. chain block artificial single-point sync pulling equipment，It is characterized in that，Including rotating disk (1)、Steel wire rope、Guide concrete anchor pile、Chain block concrete anchor pile (10)、Fixed pulley、Pulley (9) and chain block (7)，The A section (3-1) of described steel wire rope is wrapped on rotating disk (1) clockwise or counterclockwise，The B section (3-2) of steel wire rope and the A section (3-1) of steel wire rope are wrapped on rotating disk (1) in the same direction，Described fixed pulley is fixed on guiding concrete anchor pile，The A section (3-1) of described steel wire rope changes lead through fixed pulley，The B section (3-2) of described steel wire rope passes the pulley (9) the A section (3-1) afterwards with steel wire rope and links together，The A section (3-1) of described steel wire rope is parallel to the steel wire rope pulley (9) and rotating disk (1) after fixed pulley，One end of described pulley (9) is connected on chain block concrete anchor pile (10) by chain block (7)；The A end of described rotating disk and B end are respectively provided with traction draw ring (2), and the A section (3-1) of described steel wire rope is through the traction draw ring (2) of rotating disk (1) A end, and the B section (3-2) of described steel wire rope is through the traction draw ring (2) of rotating disk (1) B end；It is also associated with strain gauge (8) between described chain block (7) and its chain block concrete anchor pile (10) mounted.
- 2. require the artificial single-point sync pulling equipment of the chain block described in 1 according to power, it is characterised in that the A section (3-1) of described steel wire rope is linked together by U-bolt (6) with the B section (3-2) of steel wire rope.
- 3. require the chain block artificial single-point sync pulling equipment described in 1 or 2 according to power, it is characterised in that described fixed pulley is 2, is divided into the first fixed pulley (5-1) and the second fixed pulley (5-2)；Described guiding concrete anchor pile is 2, is divided into the first guiding concrete anchor pile (4-1) and second to guide concrete anchor pile (4-2)；Described first fixed pulley (5-1) is fixed in the first guiding concrete anchor pile (4-1), and described second fixed pulley (5-2) is fixed in the second guiding concrete anchor pile (4-2).
- 4. chain block artificial single-point sync pulling engineering method, it is characterised in that comprise the following steps:(1) if rotating disk rotation direction is that then the A section wound clockwise of steel wire rope is on rotating disk, and the B section also wound clockwise of steel wire rope is on rotating disk clockwise；If rotating disk rotation direction is that then the A section wrapped anti-clockwise of steel wire rope is on rotating disk, and the B section also wrapped anti-clockwise of steel wire rope is on rotating disk counterclockwise；(2) arrange two in rotating disk side and guide concrete anchor pile, and fix a fixed pulley on each guiding concrete anchor pile, for changing the pull strength direction of the A section of steel wire rope, at rotating disk opposite side, one chain block concrete anchor pile is set, a link is fixed on chain block concrete anchor pile, one end of strain gauge is mounted on link, one end of the other end mounting chain block of described strain gauge, chain block other end mounting pulley；(3) the A end at rotating disk is respectively provided with a traction draw ring with B end, after the A section of steel wire rope passes the traction draw ring of rotating disk A end, is then passed through two fixed pulleys guided on concrete anchor pile, changes the pull strength direction of the A section of steel wire rope；(4) the B section of steel wire rope is then passed through pulley after the traction draw ring of rotating disk B end, is fixed together with the A section U-bolt of steel wire rope, now, the A section of steel wire rope after second fixed pulley, the steel wire rope being parallel between rotating disk and pulley；(5) by artificial hand zip strip calabash, drive rotating disk to rotate so that the A section of steel wire rope and B segment sync stress, and pull strength is in the same size so that the traction of 2, two ends is converted into single traction, thus realizes artificial single-point sync pulling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410776409.2A CN104532747B (en) | 2014-12-17 | 2014-12-17 | Chain block artificial single-point sync pulling equipment and engineering method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410776409.2A CN104532747B (en) | 2014-12-17 | 2014-12-17 | Chain block artificial single-point sync pulling equipment and engineering method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104532747A CN104532747A (en) | 2015-04-22 |
| CN104532747B true CN104532747B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410776409.2A Expired - Fee Related CN104532747B (en) | 2014-12-17 | 2014-12-17 | Chain block artificial single-point sync pulling equipment and engineering method |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107178044A (en) * | 2017-07-21 | 2017-09-19 | 中铁六局集团有限公司 | A kind of method that I-shaped gooseneck is worn under during jacking bridge and culvert track strengthening |
| CN110144831B (en) * | 2019-06-04 | 2021-01-15 | 中铁三局集团第二工程有限公司 | Swivel structure for continuous beam and swivel control method |
| CN110258210B (en) * | 2019-06-18 | 2024-03-12 | 中铁六局集团有限公司 | I-steel penetrating guide device for line reinforcement and operation method thereof |
| CN114427203A (en) * | 2022-01-27 | 2022-05-03 | 中铁一局集团厦门建设工程有限公司 | Steel beam penetrating device for strengthening top culvert construction route |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4378440B2 (en) * | 2005-12-16 | 2009-12-09 | 株式会社横河ブリッジ | Rotating device for bridge construction |
| KR20070104048A (en) * | 2006-04-21 | 2007-10-25 | 홍광용 | Bridge upper plate turning method |
| CN202099746U (en) * | 2011-06-01 | 2012-01-04 | 东北林业大学 | Cable-stayed bridge flat hinge rotator construction device for horizontal rotator construction |
| CN203160138U (en) * | 2013-04-03 | 2013-08-28 | 中铁西南科学研究院有限公司 | Reusable swivel system based on bridge swivel technology |
| CN103147408B (en) * | 2013-04-03 | 2015-04-08 | 中铁西南科学研究院有限公司 | Bridge rotation constructing process and rotation system |
| CN203960755U (en) * | 2014-04-09 | 2014-11-26 | 山西四建集团有限公司 | Bridge is accurately turned and is rotated and draw-gear |
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| CN104532747A (en) | 2015-04-22 |
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