CN105155426B - Method for combining cable-stayed bridge deck cable unreeling manner and air cable unreeling manner under condition of limited space - Google Patents

Method for combining cable-stayed bridge deck cable unreeling manner and air cable unreeling manner under condition of limited space Download PDF

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Publication number
CN105155426B
CN105155426B CN201510645361.6A CN201510645361A CN105155426B CN 105155426 B CN105155426 B CN 105155426B CN 201510645361 A CN201510645361 A CN 201510645361A CN 105155426 B CN105155426 B CN 105155426B
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China
Prior art keywords
cable
bridge floor
rope
suspension
suspension cable
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CN201510645361.6A
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Chinese (zh)
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CN105155426A (en
Inventor
王保
冯朝军
周文
贺清华
缪晨辉
李海泉
朱能建
Original Assignee
中铁港航局集团有限公司
中铁港航局集团有限公司桥梁分公司
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Priority to CN201510645361.6A priority Critical patent/CN105155426B/en
Publication of CN105155426A publication Critical patent/CN105155426A/en
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Publication of CN105155426B publication Critical patent/CN105155426B/en

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Abstract

The invention discloses a method for combining a cable-stayed bridge deck cable unreeling manner and an air cable unreeling manner under the condition of a limited space. The method comprises the following steps: arranging a cable releasing tray under a cable tower, enabling a stay cable to be hoisted and placed on the cable releasing tray, and ensuring a beam-end anchor cup of the stay cable to be placed in a manner that one surface of the beam-end anchor cup faces upwards; pulling out the beam-end anchor cup and placing the pulled-out beam-end anchor cup on an anchor head cart, pulling the anchor head cart towards the front end of a main beam away from the direction of the cable tower for cable unreeling, and stopping pulling when the anchor head cart is pulled to the front end of the main beam; hoisting the reeled stay cable on the cable releasing tray, turning over the hoisted stay cable in the air, and then placing the turned-over stay cable back to the cable releasing tray, so that the tower-end anchor cup of the stay cable is placed in a manner that one surface of the tower-end anchor cup faces upwards; and performing air cable unreeling construction, wherein during the air cable unreeling, the tower-end anchor cup of the stay cable is pulled to slowly move upwards in conjunction with the rotation of the cable releasing tray simultaneously until the remaining stay cables on the cable releasing tray are completely hoisted, and a stay cable unreeling process is completed. According to the cable unreeling method disclosed by the invention, a bridge deck cable unreeling manner and an air cable unreeling manner are combined, so that the problem that the deck cable unreeling space is not enough is solved, the situation that the cable body is scratched is avoided, and construction safety is guaranteed.

Description

Suspension cable bridge floor and the exhibition Suo Fangfa combining in the air under the conditions of a kind of limited space

Technical field

The present invention is used for technical field of bridge construction, suspension cable bridge floor and sky under the conditions of more particularly to a kind of limited space In the exhibition Suo Fangfa that combines.

Background technology

With the Large scale construction of China's traffic network, the construction of large span stayed-cable bridge frequently occurs, and bears in cable-stayed bridge Pulling force the structural elements mainly supporting as girder, in high-altitude or face sky, near water because suspension cable two ends hang construction, it is applied Work difficulty is big, and installation method and technological requirement are advanced, and its work progress safety assurance is particularly important.

Long suspension cable installation method is first to carry out bridge floor exhibition rope (i.e. on bridge floor, cable body is fully deployed), existing in suspension cable It is necessary to first suspension cable be carried out bridge floor exhibition rope in the work progress of field, its original twisted angle when making is carried out opposite direction Back twist and reach it and can freely stretch, to prevent suspension cable in the soft distraction procedure when suspension cable is installed at beam-ends or tower end Torsion occurs and will draw jack damage ring, thus avoiding the occurrence of casualty accident.Carry out tower end, beam-ends (or beam-ends, tower more one after another End) hang construction.

The conventional bridge floor exhibition Suo Fangfa mono- of long suspension cable is: is lifted oblique pulling cable body using ground hanging device or tower crane To on the other bridge floor cable tray of king-tower, using the 1st hoist engine, beam-ends corner block, cable tray is drawn to beam front end, utilize One end anchor head of external for suspension cable dew is pulled out and is placed on bridge floor anchor head dolly by bridge floor automobile loop wheel machine, and the 2nd bridge floor is rolled up The haulage cable raising machine is released, after the corner block of the girder other end turns to, steel wire rope is placed on bridge floor and by its Front end lies in anchor head dolly front end, starts the 2nd bridge floor hoist engine rope closing and drags the reach of suspension cable anchor head, artificial promotion is put simultaneously Rope disk rotate, under oblique pulling cable body every one segment distance place one put rope dolly prevent cable body bridge floor abrade, the 2nd volume Machine of raising drags below oblique tensile tower end anchor head draws to Sarasota that (during this, cable tray is located at beam front position not always Dynamic, only rotate cable tray and carry out solving rope), complete part bridge floor exhibition rope (part cable body, also on cable tray, is not untied completely), solution Open the 2nd steel wire rope of windlass, then carry out tower end and hang using the 3rd hoist engine of tower top and king-tower other tower crane cooperation, by tower End anchor head steps up preparation and attaches the names of pre-determined candidates installations, meanwhile the 2nd steel wire rope of windlass tightrope of bridge floor is tied up to be locked at oblique Kazakhstan on drag-line not presss from both sides continuation to front haulage, forward toward Sarasota direction sync pulling, suspension cable is carried out bridge floor exhibition rope, until putting On rope disk, remaining cable body is all untied, and completes exhibition rope construction on bridge floor.

The conventional bridge floor exhibition Suo Fangfa bis- of long suspension cable is: using ground hanging device or the other tower crane of king-tower by inclined cable Body is lifted on the other bridge floor cable tray of king-tower, is drawn cable tray to master using the 1st bridge floor hoist engine, beam-ends corner block One end anchor head of external for suspension cable dew is pulled out using bridge floor automobile loop wheel machine and is placed on bridge floor anchor head dolly by the front end of beam one end On, the haulage cable of the 2nd bridge floor hoist engine is released, after the corner block of the girder other end turns to, steel wire rope is put Put on bridge floor and its front end is lain in anchor head dolly front end, before starting the 2nd bridge floor hoist engine rope closing dragging suspension cable anchor head Move, manually promote cable tray to rotate simultaneously, place one every a segment distance under oblique pulling cable body and put rope dolly and prevent cable body In bridge floor scratch, hoist engine drags always and moves to the girder other end until suspension cable, until suspension cable other end anchor head departs from Cable tray completes bridge floor exhibition rope (now suspension cable one end anchor head has crossed king-tower center line).Suspension cable is first existed when installing by suspension cable Turn around by force by smooth turn for the other end of girder front end, more whole skew cables is moved to the front extreme direction of girder one end, directly Anchor head to suspension cable one end crosses king-tower center line, recycles the 3rd hoist engine of tower top and tower crane cooperation to carry out tower end and hang.

The shortcoming of prior art:

(1) conventional bridge floor exhibition Suo Fangfa mono- shortcoming of long suspension cable

1st, long suspension cable carries out bridge floor exhibition rope needs a lot of plant equipment mate-assist construction (three hoist engines, Yi Taita Hang, a truck crane closes).

2nd, long suspension cable exhibition rope half also have part cable body on cable tray when, using tower top the 3rd hoist engine and tower crane Cooperation carries out tower end and hangs, and meanwhile needs the 2nd steel wire rope of windlass tightrope to tie up to the Ha Fu being locked on suspension cable Folder continues, to front haulage cooperation, complex operation, easily to damage the pe sheath of suspension cable, and the 3rd hoist engine of tower top and tower crane lead Gravitation needs big, construction safety risk increase.

3rd, suspension cable exhibition rope is insufficient, and not exclusively, during tensioning, rotating easily occurs in jack for back twist.

(2) conventional bridge floor exhibition Suo Fangfa bis- shortcoming of long suspension cable

1st, long suspension cable carries out bridge floor exhibition rope needs a lot of plant equipment mate-assist construction (three hoist engines, Yi Taita Hang, a truck crane closes).

2nd, long suspension cable length is big, all opens up rope using existing bridge floor, suspension cable one end through king-tower center line, If by force suspension cable large radius being bent rotary head on the bridge floor of girder one end, difficulty of construction is very big, and cable body easily scratches, safety Risk is high.

3rd, fully, completely, during tensioning, jack is not in rotation to suspension cable exhibition rope substantially for back twist.

Content of the invention

For solving the above problems, the present invention provides suspension cable bridge floor and the exhibition combining in the air under the conditions of a kind of limited space Suo Fangfa, solves the problems, such as that long weight suspension cable bridge floor exhibition rope space is inadequate, and reduces the lease quantity of construction Aided Machine as far as possible With reduces cost, simplify operational sequence it is ensured that construction safety.

The technical solution adopted for the present invention to solve the technical problems is: under the conditions of a kind of limited space suspension cable bridge floor with The exhibition Suo Fangfa combining in the air, comprises the following steps:

S10. cable tray is arranged in below Sarasota, the suspension cable lifting of rolling is placed on cable tray, and ensures oblique pull The beam-ends anchor cup one of rope faces up placement;

S20. beam-ends anchor cup is pulled out and be placed on anchor head dolly, by anchor head dolly to the girder away from Sarasota direction Front end traction carries out opening up rope, stops traction when anchor head dolly is drawn to girder front end;

S30. the suspension cable of not yet expansion above cable tray is lifted by crane and place back in cable tray after overturning in the air, so that The tower end anchor cup one of suspension cable faces up placement;

S40. opened up rope construction in the air, during aerial exhibition rope, the tower end anchor cup of traction suspension cable slowly moves up, simultaneously Cooperation cable tray rotates, until remaining suspension cable lifting finishes on cable tray, completes suspension cable exhibition rope.

It is further used as the improvement of technical solution of the present invention, in step s20, by the First elevator being located on girder bridge floor The wire rope rope of machine, in anchor head dolly front end, starts First hoist engine rope closing by anchor head dolly to the girder away from Sarasota direction Front end traction carries out opening up rope.

It is further used as the improvement of technical solution of the present invention, start First hoist engine rope closing by anchor head dolly to away from rope During the girder front end traction exhibition rope in tower direction, between suspension cable and girder bridge floor, interval 2m~3m places one to put rope little Car, and putting place mat rubber peel on rope dolly.

It is further used as the improvement of technical solution of the present invention, described cable tray includes firm banking and is located at described fixing bottom Rotating disk on seat, is provided with the rolling frame that the suspension cable for rolling is wound around in the middle part of described rotating disk, described anchor head dolly and to put rope dolly equal Including vehicle frame and the roller being located at described bottom of frame.

It is further used as the improvement of technical solution of the present invention, in step s30, using Sarasota construction tower crane, bridge floor truck crane Above machine cooperation lifting cable tray, the suspension cable of not yet expansion, places back in cable tray after upset.

It is further used as the improvement of technical solution of the present invention, in step s40, using being located at Sarasota top during aerial exhibition rope Second hoist engine and Sarasota construction tower crane cooperation traction tower end anchor cup slowly move up, and coordinate simultaneously and manually promote cable tray Rotate, until suspension cable also surplus 2 circles stop suspension cable lifting on cable tray when not launching, last 2 circle suspension cables adopt bridge floor Automobile loop wheel machine is opened up rope auxiliary in the air, separately arranges a suspension centre, using bridge floor on the suspension cable have been detached from cable tray Automobile loop wheel machine connects described suspension centre and lifts suspension cable, until last 2 circle suspension cables are slowly lifted disengaging cable tray, by cable tray Remove, then slowly loose hook drops back into bridge floor to bridge floor automobile loop wheel machine, remove suspension centre, tower top hoist engine and Sarasota construction tower crane cooperation continue Continue and be lifted up tower end anchor cup, until the cable body of aerial exhibition rope all departs from bridge floor, complete to open up rope construction in the air.

It is further used as the improvement of technical solution of the present invention, described suspension cable arranges soft suspender belt and passes through described soft suspender belt Form suspension centre, soft suspender belt is connected with suspension cable at 2 points, bridge floor automobile loop wheel machine bolt is hung soft suspender belt and lifted suspension cable.

It is further used as the improvement of technical solution of the present invention, in step s40, slowly loose hook drops back into bridge floor to bridge floor automobile loop wheel machine Before, the geotextiles of suspension cable and girder bridge floor contact damage are avoided in the laying of the lower section of suspension cable.

Beneficial effects of the present invention: the present invention takes bridge floor exhibition rope and the aerial exhibition rope mode of combining to solve long weight suspension cable Bridge floor opens up the inadequate problem in rope space, it is to avoid construction scratches cable body it is ensured that construction safety.Reduce the use number of hoist engine simultaneously Amount, the lease quantity as far as possible reducing construction Aided Machine with reduces cost, simplifies operational sequence it is ensured that construction safety.

Brief description

The invention will be further described below in conjunction with the accompanying drawings:

Fig. 1 is that the suspension cable on cable tray of the present invention opens up rope schematic diagram in bridge floor;

Fig. 2 is that the suspension cable on cable tray of the present invention overturns schematic diagram on bridge floor.

Specific embodiment

With reference to Fig. 1, Fig. 2, that show the concrete structure of the preferred embodiments of the invention.Will be detailed below this The design feature of bright each element, and during if there are being described to direction (upper and lower, left and right, before and after), be with the knot shown in Fig. 1 Structure is with reference to description, but the actually used direction of the present invention is not limited thereto.

The invention provides suspension cable bridge floor and the exhibition Suo Fangfa combining in the air under the conditions of a kind of limited space, including with Lower step:

S10. cable tray 1 is arranged in below Sarasota 2, suspension cable 3 presses design drawing processing and manufacturing, oblique pull by specialized factory Rope 3 includes the cable body at middle part and is located at beam-ends anchor cup and the tower end anchor cup at cable body two ends, and suspension cable 3 plays the bundled transport of disk by factory To scene, the lifting of the suspension cable 3 of rolling of dispatching from the factory is placed on cable tray 1, and ensures that the beam-ends anchor cup one of suspension cable 3 faces up and puts Put;

S20. beam-ends anchor cup is pulled out and be placed on anchor head dolly 4, the First elevator on girder 5 bridge floor will be located at The steel wire penetrating girder 5 front end corner block of machine ties up to anchor head dolly 4 front end, starts First hoist engine rope closing anchor head is little Car 4 to away from Sarasota 2 direction girder 5 front end traction carry out open up rope, exhibition rope during, between suspension cable 3 and girder 5 bridge floor between Every 2m~3m place one put rope dolly 6, prevent suspension cable 3 contact with girder 5 bridge floor cause damage, and put rope dolly 6 it Upper place mat rubber peel guard cable bulk damage, stops traction (now above cable tray 1 when anchor head dolly 4 is drawn to girder 5 front end There remains part cable body);

S30. the suspension cable 3 of cable tray 1 not yet expansion above is coordinated using Sarasota construction tower crane 7, bridge floor automobile loop wheel machine 8 Cable tray 1 is placed back in, the placement so that the tower end anchor cup one of suspension cable 3 faces up after lifting in the air upset;

S40. opened up rope construction in the air, during aerial exhibition rope, the tower end anchor cup of traction suspension cable 3 slowly moves up, in the air Slow upwards using second hoist engine being located at Sarasota 2 top and Sarasota construction tower crane 7 cooperation traction tower end anchor cup during exhibition rope Mobile, coordinate manually promotion cable tray 1 to rotate, until stopping is oblique when also surplus 2 circles of suspension cable 3 do not launch on cable tray 1 simultaneously Drag-line 3 is lifted, for quick reverse or big wobble effects Sarasota construction tower crane 7 uses when avoiding suspension cable 3 fully deployed Safety, last 2 circle suspension cables 3 are opened up rope auxiliary using bridge floor automobile loop wheel machine 8, in the air in the oblique pull having been detached from cable tray 1 One suspension centre is separately arranged on rope 3, described suspension cable 3 arranges soft suspender belt and suspension centre, soft suspender belt are formed by described soft suspender belt 3 two points are connected with suspension cable, and bridge floor automobile loop wheel machine 8 bolt is hung soft suspender belt and lifted suspension cable 3, connect institute using bridge floor automobile loop wheel machine 8 State suspension centre lifting suspension cable 3, until last 2 circle suspension cables 3 are slowly lifted disengaging cable tray 1, cable tray 1 is removed, then Slowly loose hook drops back into bridge floor to bridge floor automobile loop wheel machine 8, and bridge floor automobile loop wheel machine 8 is before slowly loose hook drops back into bridge floor, in the lower section of suspension cable 3 Laying avoids the geotextiles of suspension cable 3 and girder 5 bridge floor contact damage, prevents cable body and beam face contact damage, removes suspension centre, tower Top hoist engine and Sarasota construction tower crane 7 cooperation continue up lifting tower end anchor cup, until the cable body of aerial exhibition rope all departs from bridge Face, completes to open up rope construction in the air.

Wherein, described cable tray 1 includes firm banking 11 and the rotating disk 12 being located on described firm banking 11, described rotating disk It is provided with the rolling frame 13 that the suspension cable 3 for rolling is wound around, described anchor head dolly 4 and put rope dolly 6 and all include vehicle frame and set in the middle part of in the of 12 Roller in described bottom of frame.

The present invention take bridge floor exhibition rope and the aerial exhibition rope mode of combining to solve long weight suspension cable bridge floor exhibition rope space inadequate Problem, it is to avoid construction scratches cable body it is ensured that construction safety.Reduce the usage quantity of hoist engine simultaneously, reduce construction as far as possible The lease quantity of Aided Machine with reduces cost, simplifies operational sequence it is ensured that construction safety.

Certainly, the invention is not limited to above-mentioned embodiment, and those of ordinary skill in the art are without prejudice to this Equivalent variations or replacement also can be made, these equivalent modifications or replacement are all contained in the application right on the premise of spirit Require in limited range.

Claims (7)

1. under the conditions of a kind of limited space suspension cable bridge floor with the exhibition Suo Fangfa combining in the air it is characterised in that including following walking Rapid:
S10. cable tray is arranged in below Sarasota, the suspension cable lifting of rolling is placed on cable tray, and ensures suspension cable Beam-ends anchor cup one faces up placement;
S20. beam-ends anchor cup is pulled out and be placed on anchor head dolly, by anchor head dolly to the girder front end away from Sarasota direction Traction carries out opening up rope, stops traction when anchor head dolly is drawn to girder front end;
S30. the suspension cable of not yet expansion above cable tray is lifted by crane and place back in cable tray after overturning in the air, so that oblique pull The tower end anchor cup one of rope faces up placement;
S40. opened up rope construction in the air, using second hoist engine being located at Sarasota top and Sarasota construction tower during aerial exhibition rope Hang cooperation traction tower end anchor cup slowly to move up, coordinate artificial promotion cable tray to rotate simultaneously, until suspension cable on cable tray Also surplus 2 circles stop suspension cable lifting when not launching, it is auxiliary that last 2 circle suspension cables are opened up rope in the air using bridge floor automobile loop wheel machine Help, a suspension centre is separately arranged on the suspension cable have been detached from cable tray, described suspension centre is connected using bridge floor automobile loop wheel machine and carries Rise suspension cable, until last 2 circle suspension cables are slowly lifted disengaging cable tray, cable tray is removed, then bridge floor automobile loop wheel machine Slowly loose hook drops back into bridge floor, removes suspension centre, and tower top hoist engine and Sarasota construction tower crane cooperation continue up lifting tower end anchor cup, directly Cable body to aerial exhibition rope all departs from bridge floor, completes to open up rope construction in the air.
2. suspension cable bridge floor and the exhibition Suo Fangfa combining in the air under the conditions of limited space according to claim 1, it is special Levy and be: in step s20, by the wire rope rope of the First hoist engine being located on girder bridge floor in anchor head dolly front end, start Anchor head dolly is carried out opening up rope by First hoist engine rope closing to the girder front end traction away from Sarasota direction.
3. suspension cable bridge floor and the exhibition Suo Fangfa combining in the air under the conditions of limited space according to claim 2, it is special Levy and be: start First hoist engine rope closing by anchor head dolly to during the girder front end traction exhibition rope away from Sarasota direction, Between suspension cable and girder bridge floor, rope dolly is put in interval 2m~3m placement one, and is putting place mat rubber peel on rope dolly.
4. suspension cable bridge floor and the exhibition Suo Fangfa combining in the air under the conditions of limited space according to claim 3, it is special Levy and be: described cable tray includes firm banking and the rotating disk being located on described firm banking, is provided with and supplies in the middle part of described rotating disk The rolling frame that the suspension cable of volume is wound around, described anchor head dolly all includes vehicle frame and is located at the rolling of described bottom of frame with putting rope dolly Wheel.
5. suspension cable bridge floor and the exhibition Suo Fangfa combining in the air under the conditions of limited space according to claim 1, it is special Levy and be: in step s30, using Sarasota construct tower crane, not yet expansion is oblique above bridge floor automobile loop wheel machine cooperation lifting cable tray Drag-line, places back in cable tray after upset.
6. suspension cable bridge floor and the exhibition Suo Fangfa combining in the air under the conditions of limited space according to claim 1, it is special Levy and be: soft suspender belt is arranged on described suspension cable and suspension centre is formed by described soft suspender belt, soft suspender belt is connected for 2 points with suspension cable, Bridge floor automobile loop wheel machine bolt is hung soft suspender belt and is lifted suspension cable.
7. suspension cable bridge floor and the exhibition Suo Fangfa combining in the air under the conditions of limited space according to claim 1, it is special Levy and be: in step s40, before slowly loose hook drops back into bridge floor, the laying in the lower section of suspension cable avoids suspension cable to bridge floor automobile loop wheel machine Geotextiles with girder bridge floor contact damage.
CN201510645361.6A 2015-09-30 2015-09-30 Method for combining cable-stayed bridge deck cable unreeling manner and air cable unreeling manner under condition of limited space CN105155426B (en)

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CN201510645361.6A CN105155426B (en) 2015-09-30 2015-09-30 Method for combining cable-stayed bridge deck cable unreeling manner and air cable unreeling manner under condition of limited space

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CN201510645361.6A CN105155426B (en) 2015-09-30 2015-09-30 Method for combining cable-stayed bridge deck cable unreeling manner and air cable unreeling manner under condition of limited space

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Publication number Priority date Publication date Assignee Title
CN105442458B (en) * 2016-01-29 2017-01-11 中铁大桥(郑州)缆索有限公司 Method for hanging and installing stay cable of cable-stayed bridge special-shaped tower pillar
CN109811889B (en) * 2019-01-23 2020-11-03 中国五冶集团有限公司 Saddle-shaped cable net cable spreading installation method under space limited condition
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

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JP3019206B2 (en) * 1997-07-17 2000-03-13 鹿島建設株式会社 Diagonal cable drop-in and erection method and device
CN1122742C (en) * 1998-11-09 2003-10-01 柳州欧维姆建筑机械有限公司 Method and system for suspending oblique guys of cable stayed bridge
CN102444086B (en) * 2011-10-14 2014-04-02 中铁大桥局股份有限公司 Cable hanging system for inclined stay cable of bridge and cable hanging method for inclined stay cable of bridge
CN102535348B (en) * 2012-03-14 2013-10-30 天津市市政工程设计研究院 Method for tensioning stayed cables of hinged tower cable stayed bridge
CN104163357A (en) * 2014-07-22 2014-11-26 中铁四局集团有限公司 Cable spreading disk for cable-stayed bridge

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