CN202090286U - Traction system suitable for self-anchored type double cable plane suspension bridge - Google Patents
Traction system suitable for self-anchored type double cable plane suspension bridge Download PDFInfo
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- CN202090286U CN202090286U CN2011200320571U CN201120032057U CN202090286U CN 202090286 U CN202090286 U CN 202090286U CN 2011200320571 U CN2011200320571 U CN 2011200320571U CN 201120032057 U CN201120032057 U CN 201120032057U CN 202090286 U CN202090286 U CN 202090286U
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Abstract
The utility model discloses a traction system suitable for a self-anchored type double cable plane suspension bridge, comprising a bearing cable, a main traction hoist, an auxiliary traction hoist, a traction rope, a slideway, a pulley and a cucurbit. The bearing cable traverses a tower top hoisting frame, and two ends of the bearing cable are respectively anchored to an anchor crossbeam cooperation cross side bridge floor. The main traction hoist is located in a main cable anchoring zone A, and the auxiliary traction hoist is located in a main cable anchoring zone B. The traction rope traverses the tower top hoisting frame; one end of the traction rope is involved in the main traction hoist, and the other end is involved in the auxiliary traction hoist. The slideway comprises a nylon pulley installed on a cat way support. The pulley is installed on the bearing cable and hangs the cucurbit. The traction system has a simple structure, is convenient for installation; besides the cost is low, thus the traction system is especially suitable for tracting and prefabricating parallel steel strands.
Description
Technical field
The utility model relates to a kind of main push-towing rope trailer system, relates in particular to a kind of trailer system that is applicable to the two rope face suspension bridges of self-anchoring type.
Background technology
The main supporting member main push-towing rope of general cable bridge all is anchored on the anchorage, main push-towing rope directly is anchored on the stiff girder, thereby has cancelled huge anchorage, is self-anchored suspension bridge.Self-anchored suspension bridge has many good qualities: do not need to build the anchorage of large volume, so be specially adapted to the very poor area of geological conditions; Because of being subjected to landform restriction little, can both can make the suspension bridge that double tower three is striden in conjunction with the landform flexible arrangement, can make the suspension bridge of single tower double-span; For the stiff girder of Reinforced Concrete Materials, owing to need bear the pressure that main push-towing rope transmits, rigidity can improve, and has saved a large amount of prestressed constructionses and device, has also overcome the shortcoming of steel in larger axis easy lateral deflection under power simultaneously; Adopt that concrete material can overcome in the past that the self-anchored suspension bridge steel using amount is big, construction and the high shortcoming of later maintenance expense, can obtain good economic benefits and social benefit; The profile that has kept traditional suspension bridge is very competitive scheme in the medium and small footpath of striding in the bridge; Owing to adopt the Reinforced Concrete Materials cost lower, rational in infrastructure, the bridge good looking appearance adopts so be not limited to area very poor at ground, that anchorage is built difficulty.Therefore, since beginning in 1999 was built at home, self-anchored suspension bridge had obtained developing rapidly in China.
The superstructure of self-anchored suspension bridge comprises: girder, main push-towing rope, suspension rod, king-tower four parts.Path of Force Transfer is: vertical loads such as bridge floor weight, vehicular load reach main push-towing rope by suspension rod and bear, and main push-towing rope bears pulling force, and main push-towing rope is anchored at beam-ends, and horizontal force is passed to girder, and main push-towing rope is bearing the dead load in the self-anchored suspension bridge.Linear state of main push-towing rope and main cable strand pulling force are to journal offset, the skew of cable saddle position of king-tower, and girder stress all has a direct impact, so main push-towing rope is called as " lifeline of suspension bridge ".Whether the installation of main push-towing rope reaches designing requirement, is the key of bridge success.In the bridge erection process, main push-towing rope successfully set up the most important effect of playing is installed, be the main push-towing rope trailer system.
The utility model content
The utility model, a kind of trailer system that is applicable to the two rope face suspension bridges of self-anchoring type is provided, described trailer system comprises track cable, main rack winch, secondary rack winch, pull rope, slideway, coaster and cucurbit, track cable passes cat head and promotes door frame, the track cable two ends are anchored in the cooperation of anchor crossbeam respectively and stride on the side bridge floor, main rack winch is positioned at main push-towing rope anchoring A district, secondary rack winch is positioned at main push-towing rope anchoring B district, pull rope passes cat head and promotes door frame, pull rope one end is involved in main rack winch, the other end is involved in secondary rack winch, described slideway comprises the nylon pulley that is installed on the cat road support, coaster is installed on the track cable, coaster is hung cucurbit down, track cable adopts Φ 25mm to Φ 28mm wire rope, press the empty cable shape of main push-towing rope, and being higher than sky cable 50cm to 60cm arranges, track cable passes cat head and promotes the cucurbit hook that is hung on the door frame, described coaster specification is the above single-wheel snatch block of load-carrying 3t, described cucurbit specification is the above Chain block of load-carrying 2t, and described cucurbit specification is the above Chain block of load-carrying 2t.
Track cable one end is anchored in west bank anchor crossbeam cooperation and strides on the side bridge floor, track cable is pressed the empty cable shape of main push-towing rope, and being higher than sky cable 50～60cm arranges, pass the west bank cat head and promote the cucurbit hook that is hung on the door frame, the cucurbit that promotes on the door frame through eastern bank cat head is linked up with again, and the track cable other end is fixed on eastern bank anchor crossbeam cooperation and strides on the side bridge floor.Track cable is responsible for bearing the weight of strand, anchor head, coaster, cucurbit etc., the weight when also bearing the handling of strand, anchor head and other equipment.
Main rack winch is positioned at main push-towing rope anchoring A district, and secondary rack winch is positioned at main push-towing rope anchoring B district, and pull rope one end is involved in main rack winch, and pull rope passes cat head along the empty cable shape of main push-towing rope and promotes door frame, and the other end is involved in secondary rack winch.Main cable strand is fixed on the pull rope by special fixture, is responsible for drawing pull rope by main rack winch, and secondary rack winch is responsible for putting rope, and strand is finished the location and installation of strand under the guiding of pull rope.
Described slideway comprises the nylon pulley that is installed on the cat road support.Slideway mainly rises and helps pull rope and strand traction, prevents the effect of strand outer protection layer wearing and tearing.
Coaster is installed on the track cable, and coaster is hung cucurbit, the anchor head of the strand that plays on the hook of cucurbit down.Coaster slides along track cable, and cucurbit plays handling strand, anchor head and dynamically adjusts and revise anchor head.
Description of drawings
Figure 1 shows that trailer system and bridge main structure chart;
Figure 2 shows that the trailer system arrangement diagram;
Figure 3 shows that the track cable arrangement diagram.
Being labeled as of each parts among the figure:
1, track cable; 2, main rack winch; 3, secondary rack winch; 4, pull rope;
5, slideway; 5-1, nylon pulley; 5-2 cat road; 6, coaster;
7, cucurbit; 8, main push-towing rope anchoring A district; 9, main push-towing rope anchoring B district;
10, cat head promotes door frame; 11, king-tower; 12, strand; 13, anchor head;
14, put the rope support.
The specific embodiment
Technical purpose and technique effect for describing technology contents of the present utility model, architectural feature, realization in detail are elaborated below in conjunction with drawings and embodiments.
Embodiment 1: the main push-towing rope construction system comprises that putting rope support 14, trailer system and cat head promotes door frame 10.Described trailer system comprises track cable 1, main rack winch 2, secondary rack winch 3, pull rope 4, slideway 5, coaster 6 and cucurbit 7.
Track cable 1 one ends are anchored in west bank anchor crossbeam cooperation and stride on the side bridge floor, track cable 1 adopts Φ 25-28mm wire rope, press the empty cable shape of main push-towing rope, and being higher than sky cable 50～60cm arranges, the centre is passed the west bank cat head and is promoted the cucurbit hook that is hung on the door frame 10, the cucurbit that promotes on the door frame 10 through eastern bank cat head is linked up with again, and track cable 1 other end is anchored at eastern bank anchor crossbeam cooperation and strides on the side bridge floor.
Put 5t master's rack winch 2 in main push-towing rope anchoring A district, put the secondary rack winch 3 of 3t in main push-towing rope anchoring B district 9.Pull rope 4 one ends are involved in main rack winch 2, pass cat head in the middle of the pull rope 4 and promote door frame 10, and pull rope 4 is pressed the empty cable shape of main push-towing rope and arranged that pull rope 4 other ends are involved in secondary rack winch 3.
Slideway 5 comprises the nylon pulley 5-1 that is installed on the cat road support 5-2, uses the above snatch block 6 of 3t to be installed on the track cable 1 as the horse race coaster and with it, and snatch block is hung the above Chain block 7 of 2t 6 times.
Main cable strand sets up and is divided into that the benchmark strand sets up and general strand sets up two stages.Two stage key steps are: the rope dish is gone into frame, strand traction, strand shaping, strand and is gone into saddle, strand adjustment, strand stretch-draw anchor etc.
After finished product main rope dish transports the job site to, with mobile crane lifting put into be arranged at secondary rack winch 3 sides put rope support 14, manage out bitter end anchor head 13, so that put the rope traction.Manually make tip folding and unfolding pull rope 4, pull rope 4 two ends are involved in respectively in the major and minor rack winch, and an end is used for serving and draws, and the other end is used to put rope, back and forth traction of two traction elevators interlock.Adopting special fixture will put bitter end anchor head 13 is fixed on the pull rope 4, and be suspended on track cable 1 time on the Chain block of hanging 7 hooks, must be up when fixing anchor head 13 with the benchmark silk plane parallel of underlined point, check pull rope 4 and adjust counterweight, adjust the spacing of strand anchor head 13 and slideway 5, it is controlled between 20～30cm.
Advance to respective side by putting rope support 14 by pull rope 4 traction strands 12, hauling speed is controlled about by 15m/min.Establish the special messenger and advance with strand anchor head 13 in distraction procedure, all-the-way tracking at any time with the 7 control anchor heads of the Chain block on the track cable 1,13 height, is avoided anchor head 13 and Mao Dao to collide or track cable occurred in stressed back downwarp and phenomenons such as strand 12 reverses, drum silks.Every cat head arranges the special messenger to be responsible for alternately conversion of anchor head, is aided with the 2t Chain block that is suspended on the cat head lifting door frame 10 and assists draw-gear and anchor head 13 to climb over cat head.When strand 12 preceding inlet side anchor heads 13 arrive the front end cross beam cable guide pipe mouths of pipe, and when each signature point on the finished product strand reaches place, theoretical separately corresponding points position, promptly stop traction, Chain block 7 and 4 of anchor head and pull ropes is connected on the releasing track cable 1.Strand anchor head 13 is sent in the cable guide pipe by pulling equipment, treats to carry out anchoring temporarily behind the saddle.
Subsequently manually by preceding inlet side anchor head to the back-end anchor head carry out the strand shaping piecemeal.
After strand 12 tractions put in place, each about 5m place is installed in clip on the strand 12 respectively apart from the cable saddle both sides along the bridge longitudinal axis at every cat head place, and clip and cat head are promoted the Chain block that hangs on the door frame link to each other, by tightening up Chain block strand is all mentioned from cat road pulley 5-1, after steadily, gently cat head cable saddle section strand 12 being promoted to the about 30cm in cable saddle top, come to a complete stop, after checking that once more the whole strands 12 of affirmation have broken away from cat road top sheave 5-1, with Chain block with strand 12 traversing to cable saddle to agreeing directly over the cable groove shaping once more.After shaping was finished, the both sides Chain block unclamps gently simultaneously transferred, and held the cable groove with what strand was put into the cable saddle correspondence.
The benchmark strand adopts the absolute deflection method to adjust, adopt promptly that " unidirectional triangulated height intermediate method " carries out striding in the strand, the measurement of position, limit absolute altitude, and compare with emulation checking computations value and design theory value under the corresponding monitoring working condition, it is linear to adjust and control the benchmark strand.General strand adopts relative sag method to adjust.
In strand end bay sag is adjusted, adjust by the punching jack tension strand of installing on the main push-towing rope anchor plate of anchor crossbeam bottom 12, when formation meet the demands linear after, fastening nut gives anchored.
Main cable strand sets up and is divided into that the benchmark strand sets up and general strand sets up two classes, and No. 1 strand is the benchmark strand, and other strands are general strand.Strand set up the order by the numbering carries out successively from 1～n number, at first set up the benchmark strand No. 1, treat that the linear adjustment of benchmark strand is finished after, begin general strand more successively and set up.
This trailer system has simple in structure, and is easy to operate; And realize easily bigger tractive force, can control rate during towage etc. advantage.
Embodiment 2: embodiment 1 is further replenished.Notice that the major and minor rack winch in the distraction procedure keeps synchronous operation, retractable speed unanimity, passive hoist engine keeps certain counter pull.When crossing cat head door frame, anchorage door frame and cat road door frame, suitably reduce hauling speed, reduce impact force door frame.When the preceding inlet side of strand anchor head when the eastern bank anchor chamber, with loading onto special-purpose supporting plate dolly from putting the rear end anchor head that rope frame rope dish deviates from, continue tractive then, with tower crane is auxiliary anchor head is put into appropriate location, anchor chamber, west bank at last.
Embodiment 3: embodiment 2 is further replenished.Before the strand 12 beginning shapings, hexagonal clamp is installed in the place of about 3 m respectively before and after the distance cable saddle, removes the binding strap of strand between two anchor clamps.Cat head from end bay to stride direction and carry out shaping, carry out shaping by anchor span to the end bay direction on diffusing cable saddle buttress top, strand is manually beaten with wooden mallet in shaping limit, limit, and carries out the section arrangement with the steel disc comb, make it become quadrangle, use special-purpose quadrangle clamp again by hexagon.
The above; it only is preferred embodiment of the present utility model; be not to be qualification to the utility model protection domain; so long as employing the technical solution of the utility model; perhaps only be any conventional the modification or equivalent variations that to make by those of ordinary skill in the art, all fall among the utility model scope required for protection.
Claims (5)
1. trailer system that is applicable to the two rope face suspension bridges of self-anchoring type, it is characterized in that: described trailer system comprises track cable (1), main rack winch (2), secondary rack winch (3), pull rope (4), slideway (5), coaster (6) and cucurbit (7), track cable passes cat head and promotes door frame (10), track cable (1) two ends are anchored in the cooperation of anchor crossbeam respectively and stride on the side bridge floor, main rack winch (2) is positioned at main push-towing rope anchoring A district (8), secondary rack winch (3) is positioned at main push-towing rope anchoring B district (9), pull rope (4) passes cat head and promotes door frame (10), pull rope one end is involved in main rack winch (2), the other end is involved in secondary rack winch (3), described slideway (5) comprises the nylon pulley (5-1) that is installed on the cat road support (5-2), coaster (6) is installed on the track cable (1), and coaster (6) is hung cucurbit (7) down.
2. a kind of trailer system that is applicable to the two rope face suspension bridges of self-anchoring type according to claim 1, it is characterized in that: track cable (1) adopts Φ 25mm to Φ 28mm wire rope, press the empty cable shape of main push-towing rope, and be higher than sky cable 50cm to 60cm and arrange, track cable (1) passes cat head and promotes the cucurbit hook that is hung on the door frame (10).
3. a kind of trailer system that is applicable to the two rope face suspension bridges of self-anchoring type according to claim 1 and 2 is characterized in that: described coaster specification is the above single-wheel snatch block of load-carrying 3t.
4. a kind of trailer system that is applicable to the two rope face suspension bridges of self-anchoring type according to claim 1 and 2 is characterized in that: described cucurbit specification is the above Chain block of load-carrying 2t.
5. a kind of trailer system that is applicable to the two rope face suspension bridges of self-anchoring type according to claim 3 is characterized in that: described cucurbit specification is the above Chain block of load-carrying 2t.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200320571U CN202090286U (en) | 2011-01-30 | 2011-01-30 | Traction system suitable for self-anchored type double cable plane suspension bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200320571U CN202090286U (en) | 2011-01-30 | 2011-01-30 | Traction system suitable for self-anchored type double cable plane suspension bridge |
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| Publication Number | Publication Date |
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| CN202090286U true CN202090286U (en) | 2011-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200320571U Expired - Lifetime CN202090286U (en) | 2011-01-30 | 2011-01-30 | Traction system suitable for self-anchored type double cable plane suspension bridge |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352428A (en) * | 2013-07-06 | 2013-10-16 | 中交路桥建设有限公司 | Suspension bridge cable bent tower beam non-support construction method |
| CN104210977A (en) * | 2014-08-07 | 2014-12-17 | 中交二公局第二工程有限公司 | Modularized distribution type winch integration control system |
| CN104278637A (en) * | 2014-09-23 | 2015-01-14 | 中铁大桥局集团第一工程有限公司 | No-catwalk cableway erecting method for main cable strands of suspension bridge |
| CN105060125A (en) * | 2015-09-01 | 2015-11-18 | 中国长江三峡集团公司 | High tower cable crane structure and detachment method thereof |
| CN105442458A (en) * | 2016-01-29 | 2016-03-30 | 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 |
| CN105672133A (en) * | 2016-01-26 | 2016-06-15 | 中铁港航局集团有限公司 | Construction method for erecting steel tube stiff bridge framework through asymmetric lifting |
| CN105113414B (en) * | 2015-09-11 | 2016-09-21 | 中铁八局集团桥梁工程有限责任公司 | A kind of suspension bridge main rope fast erecting method |
| CN106012841A (en) * | 2016-05-16 | 2016-10-12 | 中交路桥华南工程有限公司 | Cable crane and installation method thereof |
| CN106379765A (en) * | 2016-10-21 | 2017-02-08 | 长江勘测规划设计研究有限责任公司 | Clamp resetting structure and method for reclaiming main cable of cable crane |
| CN107476208A (en) * | 2017-08-28 | 2017-12-15 | 中交公局第三工程有限公司 | A kind of end bay cat road changes lifting rope and removes device and method |
| CN108018778A (en) * | 2017-11-14 | 2018-05-11 | 中铁大桥局集团第六工程有限公司 | The cat road rope in navigable waters does not set up trailer system and cat road rope fast erecting method |
| CN108118622A (en) * | 2018-02-06 | 2018-06-05 | 中交二公局第二工程有限公司 | A kind of steel-concrete composite beam cable-stayed bridge main cable and girder construction cable crane system |
| CN110468712A (en) * | 2019-07-30 | 2019-11-19 | 中铁大桥局集团第六工程有限公司 | Main rope of suspension bridge trailer system and method |
| CN113235436A (en) * | 2021-04-28 | 2021-08-10 | 中交二航局第二工程有限公司 | Temporary inhaul cable construction method suitable for cable-first and beam-second construction of suspension bridge |
-
2011
- 2011-01-30 CN CN2011200320571U patent/CN202090286U/en not_active Expired - Lifetime
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352428A (en) * | 2013-07-06 | 2013-10-16 | 中交路桥建设有限公司 | Suspension bridge cable bent tower beam non-support construction method |
| CN104210977A (en) * | 2014-08-07 | 2014-12-17 | 中交二公局第二工程有限公司 | Modularized distribution type winch integration control system |
| CN104278637A (en) * | 2014-09-23 | 2015-01-14 | 中铁大桥局集团第一工程有限公司 | No-catwalk cableway erecting method for main cable strands of suspension bridge |
| CN104278637B (en) * | 2014-09-23 | 2016-04-06 | 中铁大桥局集团第一工程有限公司 | A kind of main rope of suspension bridge strand is without the cableway erection method in cat road |
| CN105060125A (en) * | 2015-09-01 | 2015-11-18 | 中国长江三峡集团公司 | High tower cable crane structure and detachment method thereof |
| CN105113414B (en) * | 2015-09-11 | 2016-09-21 | 中铁八局集团桥梁工程有限责任公司 | A kind of suspension bridge main rope fast erecting method |
| CN105672133A (en) * | 2016-01-26 | 2016-06-15 | 中铁港航局集团有限公司 | Construction method for erecting steel tube stiff bridge framework through asymmetric lifting |
| 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 |
| CN105442458A (en) * | 2016-01-29 | 2016-03-30 | 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 |
| CN106012841A (en) * | 2016-05-16 | 2016-10-12 | 中交路桥华南工程有限公司 | Cable crane and installation method thereof |
| CN106379765A (en) * | 2016-10-21 | 2017-02-08 | 长江勘测规划设计研究有限责任公司 | Clamp resetting structure and method for reclaiming main cable of cable crane |
| CN107476208A (en) * | 2017-08-28 | 2017-12-15 | 中交公局第三工程有限公司 | A kind of end bay cat road changes lifting rope and removes device and method |
| CN107476208B (en) * | 2017-08-28 | 2023-07-07 | 中交一公局第三工程有限公司 | Device and method for dismantling hoisting ropes changed from side-span catwalk |
| CN108018778A (en) * | 2017-11-14 | 2018-05-11 | 中铁大桥局集团第六工程有限公司 | The cat road rope in navigable waters does not set up trailer system and cat road rope fast erecting method |
| CN108018778B (en) * | 2017-11-14 | 2023-11-07 | 中铁大桥局集团第六工程有限公司 | Catwalk cable erection traction system and catwalk cable rapid erection method for non-navigable water area |
| CN108118622A (en) * | 2018-02-06 | 2018-06-05 | 中交二公局第二工程有限公司 | A kind of steel-concrete composite beam cable-stayed bridge main cable and girder construction cable crane system |
| CN110468712A (en) * | 2019-07-30 | 2019-11-19 | 中铁大桥局集团第六工程有限公司 | Main rope of suspension bridge trailer system and method |
| CN113235436A (en) * | 2021-04-28 | 2021-08-10 | 中交二航局第二工程有限公司 | Temporary inhaul cable construction method suitable for cable-first and beam-second construction of suspension bridge |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111228 |