CN100580182C - Soft and hard composite three-level traction technique for stay cables and connecting device thereof - Google Patents
Soft and hard composite three-level traction technique for stay cables and connecting device thereof Download PDFInfo
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- CN100580182C CN100580182C CN 200710169053 CN200710169053A CN100580182C CN 100580182 C CN100580182 C CN 100580182C CN 200710169053 CN200710169053 CN 200710169053 CN 200710169053 A CN200710169053 A CN 200710169053A CN 100580182 C CN100580182 C CN 100580182C
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Abstract
The invention discloses an inclined cable soft and hard combination three-stage traction process and a connecting device. After an inclined cable is hung at the tower end, a hard traction device stretching rod is connected on the anchor head of the beam end of the inclined cable, to operate the first stage traction of a winch; after the anchor head of the beam end of the inclined cable reaches the hanging shifting angle of the beam end of the inclined cable and a sling is adjusted, the second stage traction is operated to adjust the hanging angel of the beam end of the inclined cable till the stretching rod is anchored; lastly, the third stage traction is operated. The soft traction and hard traction combination construction method of the invention comprises the following steps: a soft traction steel strand is connected on the stretching rod through a soft traction connecting sleeve, the other end of the stretching rod is connected with the anchor head of the inclined cable through a diameter changing head, and the hard traction is operated consecutively after the soft traction is ended. The invention has the advantages that the operation is simple and secure, the working efficiency is high, and the inclined cable soft and hard combination three-stage traction process is the technical innovation of the inclined cable construction process. A traction connecting device matched with the traction process is staged and collocated according to the traction force, the structure is simple, reasonable, simple and effective, and the installation is convenient.
Description
Technical field
The invention belongs to suspension cable bridge construction technology, be specifically related to implement traction method and relevant connection device that beam-ends hangs after a kind of oblique tensile tower end hangs.
Background technology
Suspension cable is hanged up construction and is mainly comprised bridge floor on the rope, exhibition rope, hangs and operation such as stretch-draw, hangs wherein that the operation technology content is the highest, difficulty and risk maximum, and it is divided into the tower end and hangs with beam-ends and hang.After the tower end of existing suspension cable bridge hung, hanging at the enforcement beam-ends generally all was soft traction or hard traction, finishes beam-ends and hangs.Because suspension cable is long and heavy, hauling distance is long when hanging, the traction anchored force is big for large-scale suspension cable bridge, conventional single soft traction or draw technology firmly and can not satisfy above-mentioned construction needs.That must study that a cover is adapted to long rope hangs traction technology.
Summary of the invention
The object of the present invention is to provide a kind of soft, the hard combined three-stage traction of the suspension cable that hangs technology that is adapted to long rope, to address the above problem.
The technical scheme that realizes soft, the hard combined three-stage traction of suspension cable technology is: it is a suspension cable after finishing the tower end and hanging, and connects hard draw-gear tension rod on suspension cable beam-ends anchor head, carries out the traction of one-level hoist engine; After suspension cable beam-ends anchor head arrival suspension cable beam-ends hangs portable angle adjustment suspender, carry out the soft traction adjustment of secondary suspension cable beam-ends and hang angle until the tension rod anchoring; Carry out three grades of hard tractions at last.
General soft traction construction is that soft pull-iron twisted wire directly is connected on the suspension cable anchor head, and soft job practices of leading, leading firmly combination is by the soft adapter sleeve that leads soft pull-iron twisted wire to be connected on the tension rod, the tension rod other end then is connected with the suspension cable anchor head by the reducing head, promptly draws firmly consistently after leading end soft.Suspension cable is soft, scleroma closes that three grades of combination traction technologies have taken into full account that rope is grown, the influence of Suo Chong and construction space, has characteristics such as simple to operate, safety, operating efficiency height, is a technological innovation of stay cable construction technique; Supporting with it coupling hitch, according to the size of tractive force, hierarchical arrangement, simple in structure, reasonable, easy, effective, easy for installation.
Description of drawings
Fig. 1 one-level traction schematic diagram.
Fig. 2 tension rod afterbody is installed soft traction steel hinge line schematic diagram.
Schematic diagram is prepared in the soft traction of Fig. 3 secondary.
The soft traction schematic diagram of Fig. 4 a～Fig. 4 b secondary.
Fig. 5 a～three grades of hard traction schematic diagrames of Fig. 5 c.
Soft, the hard combined three-stage coupling hitch of Fig. 6 suspension cable schematic diagram.
Fig. 7 tension rod and drag-line anchor head connection diagram.
Fig. 8 tension rod and steel strand connection diagram.
The soft gland schematic diagram that leads of Fig. 9.
The specific embodiment
The traction of the long rope of present embodiment (more than the long 350m of rope) is anchored at beam-ends and carries out, take soft, hard combined three-stage traction technology, its main program is: and the oblique tensile tower end hangs → and the beam-ends anchor head installs hard draw-gear → one-level traction (tractive force is controlled in the 60t) → hard draw-gear rear portion and soft draw-gear → secondary traction (tractive force is controlled in the 100t) → three-stage traction is installed to anchoring.
As shown in Figure 1, at suspension cable beam-ends anchor head 200 afterbodys of suspension cable 100 tension rod 300 is installed, hoist engine 400 wire rope 401 draw-gears carry out one-level traction beam-ends anchor head and move ahead, and the hoist engine wire rope is fixed on the tension rod 300.。Junction at tension rod 300 and suspension cable beam-ends anchor head 200 is provided with lifting clamp 501; Lifting clamp 501 is fixed on the junction of tension rod 300 and beam-ends anchor head 200, offers lifting hole(eyelet) on it.
As shown in Figure 2, at tension rod 300 afterbodys soft traction steel hinge line 601 is installed, soft traction steel hinge line 601 passes continuous jack 602 and anchoring, and jack 602 is located on the bracing frame 603 continuously.Hoist engine continues traction, and traction suspension cable anchor head connects suspender by hanging portable angle adjustment suspender to the suspension cable beam-ends; Here suspender can be that the suspension cable beam-ends hangs portable angle adjustment frame 604 as shown in Figure 3, the suspension cable beam-ends hangs the bracing frame 605 that portable angle adjustment frame 604 comprises the girder structure, operating platform 606 is established on bracing frame 605 tops, sliding rail 607 is established in operating platform 606 tops, and sliding rail 607 is provided with at least two cucurbit suspenders 608.Establish Chain block 608 and 5 tons of Chain blocks 610 of three 30 tons among the figure on the sliding rail 607.Connecting suspender is connected lifting clamp 501 on the suspension hook of cucurbit suspender 608.Suspender also comprises mobile crane 609, connects lifting clamp 503 on the suspension hook of mobile crane 609, and lifting clamp 503 is fixed on the suspension cable 100.
Shown in Fig. 4 a～Fig. 4 b, it is that the Chain block mobile crane promotes suspension cable adjustment angle that suspender promotes, and jack secondary traction suspension cable moves ahead continuously.
Shown in Fig. 5 a～Fig. 5 c, jack continues to draw to the tension rod anchoring continuously, remove the secondary draw-gear, be about to soft traction steel hinge line 601 and jack 602 dismountings continuously, the punching jack is installed on tension rod, removable mobile crane is removed the one-level draw-gear, i.e. hoist engine 400 wire rope 401 draw-gears simultaneously; Suspender is adjusted angle, and the punching jack carries out the three-stage traction suspension cable, and promptly Chain block is adjusted angle, 900t punching jack 605 three-stage traction suspension cables, go out very heavy end face until all lengthening tension rods, remove all lengthening tension rods, so far the suspension cable beam-ends hangs and finishes.502 is lifting clamp.
Carry out soft lead, lead firmly in conjunction with construction before, need to determine that beam-ends draw required tractive force of each stage, select pulling equipment, method according to tractive force then and the drawing length of the hard traction that will carry out, guarantee construction safety.
Soft, the hard combined three-stage traction of suspension cable connects dress as shown in Figure 6, and an end of tension rod 300 is connected with suspension cable anchor beam end anchor head 200, and the other end of tension rod 300 is connected with steel strand 601.Tension rod 300 is by advocating that pull bar 301 and lengthening tension rod 302 connect to form.Promptly advocate pull bar 301 with the lengthening tension rod 302 between by tension rod connector 303 by being threaded.
As shown in Figure 7, an end of tension rod 300 connects reducing nut 304, and reducing nut 304 is threaded with suspension cable anchor beam end anchor head 200.Suspension cable anchor beam end anchor head 200 is with the general structure of suspension cable anchoring on the existing suspension cable bridge.
As shown in Figure 8, the other end of tension rod 300 connects soft traction adapter sleeve 310, and soft traction adapter sleeve 310 is by the soft traction gland 311 that is threaded, and soft traction gland 311 connects steel strand 601.
As shown in Figure 9, soft traction gland 311 comprises a barrel formula impulse cover 320, and the bucket end 321 of bucket formula impulse cover 320 offers steel strand connecting hole 322, and steel strand pass steel strand connecting hole 322 during connection.
Claims (4)
1, soft, the hard combined three-stage traction of a kind of suspension cable technology, it is a suspension cable after finishing the tower end and hanging, and connects hard draw-gear tension rod on suspension cable beam-ends anchor head, carries out the traction of one-level hoist engine; After suspension cable beam-ends anchor head arrival suspension cable beam-ends hangs portable angle adjustment suspender, carry out the soft traction adjustment of secondary suspension cable beam-ends and hang angle until the tension rod anchoring; Carry out three grades of hard tractions at last.
2, soft, the hard combined three-stage traction of suspension cable technology according to claim 1 is characterized in that described step is: (1) installs tension rod at suspension cable beam-ends anchor head afterbody, and hoist engine wire rope one-level traction beam-ends anchor head moves ahead; (2) at the tension rod afterbody soft traction steel hinge line is installed; (3) hoist engine continues traction, and traction suspension cable anchor head connects suspender by hanging portable angle adjustment suspender to the suspension cable beam-ends; (4) suspender promotes suspension cable and adjusts angle, and jack secondary traction suspension cable moves ahead continuously; (5) jack continues to draw to the tension rod anchoring continuously, removes the secondary draw-gear, and the punching jack is installed on tension rod; (6) suspender is adjusted angle, and the punching jack carries out the three-stage traction suspension cable.
3, soft, the hard combined three-stage traction of suspension cable technology according to claim 1 is characterized in that tension rod is by advocating that pull bar and lengthening tension rod connect to form.
4, as soft, the hard combined three-stage traction of suspension cable technology as described in the claim 2, it is characterized in that step (6) suspender adjusts angle, punching jack three-stage traction suspension cable goes out very heavy end face until all lengthening tension rods, removes all lengthening tension rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710169053 CN100580182C (en) | 2007-12-27 | 2007-12-27 | Soft and hard composite three-level traction technique for stay cables and connecting device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710169053 CN100580182C (en) | 2007-12-27 | 2007-12-27 | Soft and hard composite three-level traction technique for stay cables and connecting device thereof |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009101489955A Division CN101581075A (en) | 2007-12-27 | 2007-12-27 | Connecting device with three-stage traction of stay cables and soft and hard combination |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101195988A CN101195988A (en) | 2008-06-11 |
| CN100580182C true CN100580182C (en) | 2010-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710169053 Expired - Fee Related CN100580182C (en) | 2007-12-27 | 2007-12-27 | Soft and hard composite three-level traction technique for stay cables and connecting device thereof |
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| Country | Link |
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| CN (1) | CN100580182C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852092B (en) * | 2012-10-10 | 2015-07-15 | 中铁上海工程局集团有限公司 | Hanging cable guiding device and method |
| CN103696371B (en) * | 2013-12-25 | 2015-09-23 | 中铁大桥局集团第四工程有限公司 | A kind of tensioning equipment for self-anchored suspension bridge hoist cable and method |
| CN106812216B (en) * | 2017-03-20 | 2019-04-12 | 金环建设集团有限公司 | A kind of mast-Cable forces system integral installation method |
| CN108130859B (en) * | 2017-12-26 | 2020-06-09 | 中交路桥华南工程有限公司 | Beam end installation method of stay cable |
| CN110004835B (en) * | 2019-04-19 | 2024-08-20 | 中交第二航务工程局有限公司 | Stay cable anchor pressing device and anchor pressing method |
| CN110241736A (en) * | 2019-06-17 | 2019-09-17 | 中交路桥华南工程有限公司 | Suspension cable Fast Installation construction method |
-
2007
- 2007-12-27 CN CN 200710169053 patent/CN100580182C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101195988A (en) | 2008-06-11 |
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Owner name: WUHAN CCCC ROAD + BRIDGE SPECIAL ENGINEERING CO., Effective date: 20120614 |
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Free format text: CORRECT: ADDRESS; FROM: 430014 WUHAN, HUBEI PROVINCE TO: 430032 WUHAN, HUBEI PROVINCE |
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Effective date of registration: 20120614 Address after: 430032. 11 Golden Lake Road, Dongxihu lake, Wuhan, Hubei Co-patentee after: CCCC Road & Bridge Special Engineering Co., Ltd. Patentee after: China Communications 2nd Navigational Bureau Address before: 430014 No. 16, Nanjing Road, Jianghan District, Hubei, Wuhan Patentee before: China Communications 2nd Navigational Bureau |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100113 Termination date: 20161227 |
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| CF01 | Termination of patent right due to non-payment of annual fee |