CN205134195U - A broad width catwalk for setting up two main push -towing ropes - Google Patents
A broad width catwalk for setting up two main push -towing ropes Download PDFInfo
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- CN205134195U CN205134195U CN201520848288.8U CN201520848288U CN205134195U CN 205134195 U CN205134195 U CN 205134195U CN 201520848288 U CN201520848288 U CN 201520848288U CN 205134195 U CN205134195 U CN 205134195U
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- cat road
- catwalk
- cable
- main push
- door frame
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Abstract
The utility model discloses a broad width catwalk for setting up two main push -towing ropes belongs to bridge construction equipment technical field, and it includes the catwalk portal, the rigid coupling has the portal track cable on the entablature of catwalk portal, the rigid coupling has catwalk track cable and catwalk handrail on the bottom end rail of catwalk portal, catwalk track cable top is fixed with the catwalk surface course, still be provided with a plurality of strand brackets on the catwalk portal, the characterized in that catwalk track cable is equidistant arranges for its, the catwalk portal is provided with the anti -wind cable, be connected with antitorque pull rod between catwalk portal and the anti -wind cable. The utility model discloses solved effectively and set up a catwalk to two main push -towing rope clear spacing less every main push -towing ropes of suspension bridge and set up the problem of interfering mutually between the catwalk who leads to the fact, proposed a broad width catwalk, when satisfying main cable frame facility worker, guaranteed that catwalk structure atress is equitable, construction convenient operation, simultaneously the utility model discloses a broad width catwalk has good stability.
Description
Technical field
The utility model relates to a kind of cat road structure of auxiliary main rope of suspension bridge erection, belongs to equipment for bridge construction technical field, particularly relates to a kind of wide cut cat road structure that can be used for setting up two main push-towing rope.
Background technology
Cat road structure is mainly used in the erection of auxiliary main rope of suspension bridge, comprise the working procedures such as the traction of main cable strand, strand adjustment and measurement, the tight cable of main push-towing rope all to need cat road to have assisted, meanwhile, during main cable strand erection, cat road structure is also for construction working personnel provide walking sidewalk.
Namely the mode mainly adopting every bar main push-towing rope to arrange a Tiao Mao road for two main push-towing ropes of two main push-towing rope structure suspension bridge at present carries out erection, normal employing double width cat road structure carries out main cable erection, adopt between Liang Tiaomao road and interconnection structure is set, to strengthen cat road structures under wind ability; But the suspension bridge less to two main push-towing rope clear spacings, Liang Tiaomao road is adopted to set up if also continue, then can there is the problem of mutually fighting between cat road, therefore, be necessary to propose a kind of wide cut cat road setting up two main push-towing rope, while meeting main cable erection construction, ensure that cat road structure stress is reasonable, constructing operation is convenient.
A kind of cat road being applicable to self-anchored type double cable plane suspension bridge is disclosed in Chinese utility model patent manual CN201952738U, the feature in this cat road is described Mao Daoyoumao road track cable, cat pavement slab structure, anchoring system, adjusting device forms, described cat road is arranged on the main push-towing rope bottom of suspension bridge, described cat pavement slab structure comprises surface layer, railing, crossbeam, described surface layer comprises coarse net and fine-structure mesh, described coarse net is arranged on the downside of fine-structure mesh, described railing comprises railing post, railing post arranges manrope, the outside of described railing is also provided with railing side net.Although this utility model has constructability, Stability Analysis of Structures, intensity advantages of higher, this utility model cannot be used for the less main rope of suspension bridge erection of two main push-towing rope clear spacings, thus cannot realize the construction of main rope of suspension bridge erection.
Chinese periodical " Chinese engineering science " the 15th volume the 8th phase in 2013 discloses the paper of a section " yangtze river in nanjing the fourth-largest Qiao Mao road structure design and construction " by name, article numbering 1009-1742 (2013) 08-0048-06, this paper is to yangtze river in nanjing the fourth-largest Qiao Mao road structure design, erection and cat road change to hang and have carried out system introduction with Demolition Construction, in this novel cat road structure, the manrope in cat road adopts single major diameter wire rope (φ 32mm), consider that manrope forms space by Mao Dao Ce Wangyumao road track cable overall, consider manrope and cat road track cable, door frame track cable participates in cat road structure stress together, improve the stress of all the other cat road track cables and door frame track cable preferably.Manrope Ke Mao road, cat road construction stage is double simultaneously does bracket track cable, has both facilitated construction and has additionally reduced overlapping investment.Additionally by Wind resistant analysis and wind tunnel test, under the prerequisite guaranteeing cat road structural safety, but eliminate wind resistance cable and mechanism of shaking.Although the cat road structure disclosed in this paper has in good linear state, and good working platform can be provided for main cable erection construction and the construction of follow-up main push-towing rope tight cable, but this cat road structure cannot directly apply to the erection of (within 5m) main push-towing rope when less between two main push-towing rope, therefore cannot realize the construction of main rope of suspension bridge erection.
Chinese periodical " bridge construction " the 2nd phase in 2009 discloses the paper of a section " the road wind force proofing design of large-span suspension bridge cat and construction " by name, article numbering 1003-4722 (2009) 02-0065-04, this paper mainly with Huangpu Bridge over Zhujiang River south branch of a river suspension bridge for background, have studied the design of large-span suspension bridge construction catwalk, wind resistance and construction technology, the suspension bridge cat road mentioned in this paper is by adopting three stride continuous structure by cat road head-rope, make cat road door frame support cable and the stressed more realistic operating mode of manrope participation structure, increase horizontal overline bridge simultaneously, but level and the rope that vertically shakes, can effectively improve structures under wind performance and resistance to overturning.But this utility model also cannot to solve between two main push-towing rope the problem that main rope of suspension bridge when less adopts Liang Tiaomao road to carry out erection to interfere, thus the cat road mentioned in this paper cannot directly apply to the erection of (within 5m) main push-towing rope when less between two main push-towing rope, therefore cannot realize the construction of main rope of suspension bridge erection.
Chinese periodical " transport science and techonologies " the 2nd phase in 2013 discloses the paper (DOI10.3963/j.issn.1671-7570.2013.02.002) of a section " analysis of yangtze river in nanjing the fourth-largest bridge suspension bridge cat road Design calcu-lation " by name, the structure in the fourth-largest bridge suspension bridge construction cat road, Nanjing is disclosed in this paper, it adopts without wind resistance cable without damping rope 3 span continuous structure, on Sarasota, built-in fitting is few, the linear convenience in adjustment cat road.Cat road track cable, door frame track cable and cat road manrope are jointly stressed by cat road door frame composition spatial integral structure.By calculating and adjusting, Shi Mao road is linear parallel with main push-towing rope empty cable shape, and meet construction needs, track cable tension force safety factor meets code requirement.But do not mention in this paper that between the two main push-towing rope of solution, main rope of suspension bridge adopts Liang Tiaomao road to carry out the method that erection can interfere problem when less, thus the cat road mentioned in this paper cannot directly apply to the erection of (within 5m) main push-towing rope when less between two main push-towing rope, therefore cannot realize the construction of main rope of suspension bridge erection.
Chinese periodical " railway technology supervision " the 38th volume the 10th phase in 2010 discloses the paper of a section " design and construction in suspension bridge construction cat road " by name, article numbering 1006-9178 (2010) 10-0039-03, for Foshan flat victory bridge in this paper, the design and construction method in suspension bridge construction cat road is analyzed and researched, this Foshan is put down victory bridge and is established 4 Tiao Mao roads as the operation platform of main push-towing rope altogether, long 610 meters of Mei Tiaomao road, wide 3.6 meters, and horizontal wind resistance connection overline bridge is set between every width bridge 2 Tiao Mao road, as the walking passageway of constructor between cat road.Although this cat road structure has the advantages such as simple and direct, the easy construction of structure, safe and reliable, economical rationality, but do not mention in this paper that between the two main push-towing rope of solution, main rope of suspension bridge adopts Liang Tiaomao road to carry out the method that erection can interfere problem when less equally, thus the cat road mentioned in this paper cannot directly apply to the erection of (within 5m) main push-towing rope when less between two main push-towing rope, therefore cannot realize the construction of main rope of suspension bridge erection.
Summary of the invention
The utility model proposes improvement for above-mentioned prior art Problems existing, namely the technical problems to be solved in the utility model is to provide a kind of wide cut cat road for setting up two main push-towing rope, the problem adopting and interfere between the less main push-towing rope Shi Mao road of Liang Tiaomao road erection clear spacing not only effectively can be solved by the method, and can while meeting main cable erection construction, ensure that cat road structure stress is reasonable, constructing operation is convenient.
The technical scheme of the utility model technical solution problem is to provide a kind of wide cut cat road for setting up two main push-towing rope, and it comprises cat road door frame; The top rail of described cat road door frame is connected with door frame track cable; The lower transverse beam of described cat road door frame is connected with cat road track cable and cat road handrail; Cat road surface layer is fixed with above described cat road track cable; Described cat road door frame is also provided with multiple strand bracket; Described cat road track cable is equidistantly arranged; The erection of described cat sect is equipped with wind resistance cable; Anti-torque pull rod is connected with between described cat road door frame and described wind resistance cable.
In a kind of preferred embodiment of the present utility model, the extensional rigidity of described cat road track cable is progressively successively decreased to the track cable of centre by the track cable of both sides.
In a kind of preferred embodiment of the present utility model, the tensile strength of the outermost track cable of described cat road track cable is 2 times of the tensile strength of middle track cable.
In a kind of preferred embodiment of the present utility model, described wind resistance cable adopts upper parabola shaped layout; Described wind resistance cable two ends are affixed with anchorage respectively.
In a kind of preferred embodiment of the present utility model, described Anti-torque pull rod one end by fixing snap close and described wind resistance cable affixed, the other end and described cat road door frame affixed.
In a kind of preferred embodiment of the present utility model, described door frame track cable adopts two Cable Structure, by tying up connection between two ropes.
In a kind of preferred embodiment of the present utility model, described cat road handrail comprises netted railing and cat road manrope; Described netted railing is fixed in the both sides of described cat road door frame lower transverse beam; The top of described netted railing is connected with described cat road manrope.
In a kind of preferred embodiment of the present utility model, described strand bracket is 4; Described strand bracket comprises support and support roller.
In a kind of preferred embodiment of the present utility model, the top rail of described cat road door frame is connected with main push-towing rope traction wheel.
In a kind of preferred embodiment of the present utility model, the spacing between two main push-towing ropes set up by wide cut cat road is less than 5 meters.
The beneficial effects of the utility model are: a kind of wide cut cat road structure for setting up two main push-towing rope of the utility model is simple, the wide cut cat road of a single width can be utilized to realize the main cable erection construction of two main push-towing rope structure suspension bridge, and there is good wind resistance overturning stability, significantly reduce construction cost, improve efficiency of construction; Wide cut cat road of the present utility model by cat road track cable is equidistantly arranged, the extensional rigidity of cat road track cable is progressively successively decreased in the middle of two side direction and door frame track cable adopts two Cable Structure, efficiently solve the problem of each Suo Li skewness of cat road track cable that wide cut causes, improve the stability that the carrying in wide cut cat road is stressed, can realize again constructing quickly and easily simultaneously; The utility model, by by upper for the design of wind resistance cable parabola shaped layout, meets the reasonable distribution that cat road is stressed; The utility model by arranging Anti-torque pull rod between cat road structure and parabola shaped wind resistance cable, and the certain pretightning force of stretch-draw improves wide cut cat road structure torsional rigidity, effectively strengthen cat road structures under wind stability, solve the antitorque and anti-wind problems of the cat road structure that wide cut causes, therefore this wide cut cat road have that structure is simple, easy construction, the multiple advantages such as safe and reliable, economical rationality.
Accompanying drawing explanation
Fig. 1 is the structural representation in a kind of wide cut cat road for setting up two main push-towing rope of the utility model;
Fig. 2 is the overall longitudinal plane structure schematic diagram in a kind of wide cut cat road for setting up two main push-towing rope of the utility model;
In figure: 1-cat road door frame; 2-door frame track cable; 3-cat road track cable; 4-cat road handrail; 5-cat road surface layer; 6-strand bracket; 7-wind resistance cable; 8-Anti-torque pull rod; 9-main push-towing rope traction wheel; 10-main push-towing rope; The netted railing of 4a-; 4b-cat road manrope; 6a-support; 6b-support roller.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
From the structural representation in a kind of wide cut cat road for setting up two main push-towing rope of the utility model shown in Fig. 1 and Fig. 2, wide cut cat road of the present utility model mainly comprises cat road door frame 1; The top rail of cat road door frame 1 is connected with door frame track cable 2; The lower transverse beam of cat road door frame 1 is connected with cat road track cable 3 and cat road handrail 4; Cat road surface layer 5 is fixed with above cat road track cable 3; Cat road door frame 1 is also provided with multiple strand bracket 6; Cat road track cable 3 is equidistantly arranged; Cat road door frame 1 is provided with wind resistance cable 7; Anti-torque pull rod 8 is connected with between cat road door frame 1 and wind resistance cable 7, Anti-torque pull rod 8 one end by fixing snap close and wind resistance cable 7 affixed, the other end is fixedly connected with the lower transverse beam of cat road door frame 1, wind resistance cable 7 and cat road door frame 1 is connected by Anti-torque pull rod 8, both ensured that use procedure Zhong Mao road structure does not twist inclination, was highly resistant to high wind effect simultaneously.In order to make wide cut cat road of the present utility model structure more simply compact, cat road track cable 3 adopts equidistant layout, by using the cable wire of different-diameter as cat road track cable 3, the extensional rigidity of Shi Mao road track cable 3 is progressively successively decreased in the middle of two side direction, and outermost rigidity is 2 times of middle extensional rigidity; The heavy rustling sound 2 of door frame adopts two Cable Structure, carries out colligation between adjacent two ropes, effectively suppresses the vibration between the cat road structure operating period while ensureing structural bearing capacity.Wide cut cat road of the present utility model not only meets the main push-towing rope fast erecting for two main push-towing rope structure suspension bridge, solve the mode that the every bar main push-towing rope of tradition arranges a Tiao Mao road to set up, adopt crossbeam to carry out connecting between Liang Tiaomao road and the problem of mutually fighting between the cat road that causes.Simultaneously wide cut cat road of the present utility model due to cat road wider, simultaneously without the need to arranging interconnection in adjacent Fu Mao road structure therefore effectively saving the cat road erection duration, save construction material, the change of the cat road scope of operation simultaneously greatly also makes work high above the ground convenient.And for each Suo Li skewness of cat road track cable 3 that wide cut causes, the excessive construction inconvenience causing wire rope excessively slightly to bring of door frame track cable 2 Suo Li, therefore, the utility model cat road track cable 3 adopts equidistant layout, extensional rigidity is progressively successively decreased in the middle of two side direction, door frame track cable 2 adopts two Cable Structure, has both met wide cut cat road requirement for bearing capacity, fast and easy construction again; For the antitorque and anti-wind problems of the cat road structure that wide cut causes.The utility model adopts and arrange Anti-torque pull rod between cat road structure and parabola shaped wind resistance cable, and the certain pretightning force of stretch-draw improves wide cut cat road structure torsional rigidity, strengthens cat road structures under wind stability.
The above; be only detailed description of the invention of the present utility model; but protection domain of the present utility model is not limited thereto; any those of ordinary skill in the art are in the technical scope disclosed by the utility model; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.
Claims (10)
1., for setting up a wide cut cat road for two main push-towing rope, comprise cat road door frame (1); The top rail of described cat road door frame (1) is connected with door frame track cable (2); The lower transverse beam of described cat road door frame (1) is connected with cat road track cable (3) and cat road handrail (4); Described cat road track cable (3) top is fixed with cat road surface layer (5); Described cat road door frame (1) is also provided with multiple strand bracket (6); It is characterized in that: described cat road track cable (3) is equidistantly arranged; Described cat road door frame (1) is provided with wind resistance cable (7); Anti-torque pull rod (8) is connected with between described cat road door frame (1) and described wind resistance cable (7).
2. a kind of wide cut cat road for setting up two main push-towing rope as claimed in claim 1, is characterized in that: the extensional rigidity of described cat road track cable (3) is progressively successively decreased to the track cable of centre by the track cable of both sides.
3. a kind of wide cut cat road for setting up two main push-towing rope as claimed in claim 1 or 2, is characterized in that: the tensile strength of the outermost track cable of described cat road track cable (3) is 2 times of the tensile strength of middle track cable.
4. a kind of wide cut cat road for setting up two main push-towing rope as claimed in claim 1, is characterized in that: parabola shaped layout in the employing of described wind resistance cable (7); Described wind resistance cable (7) two ends are affixed with anchorage respectively.
5. a kind of wide cut cat road for setting up two main push-towing rope as claimed in claim 1, it is characterized in that: described Anti-torque pull rod (8) one end by fixing snap close and described wind resistance cable (7) affixed, the other end and described cat road door frame (1) affixed.
6. a kind of wide cut cat road for setting up two main push-towing rope as claimed in claim 1, is characterized in that: described door frame track cable (2) adopts two Cable Structure, by tying up connection between two ropes.
7. a kind of wide cut cat road for setting up two main push-towing rope as claimed in claim 1, is characterized in that: described cat road handrail (4) comprises netted railing (4a) and cat road manrope (4b); Described netted railing (4a) is fixed in the both sides of described cat road door frame (1) lower transverse beam; The top of described netted railing (4a) is connected with described cat road manrope (4b).
8. a kind of wide cut cat road for setting up two main push-towing rope as claimed in claim 1, is characterized in that: described strand bracket (6) is 4; Described strand bracket (6) comprises support (6a) and support roller (6b).
9. a kind of wide cut cat road for setting up two main push-towing rope as claimed in claim 1, is characterized in that: the top rail of described cat road door frame (1) is connected with main push-towing rope traction wheel (9).
10. a kind of wide cut cat road for setting up two main push-towing rope as claimed in claim 1, is characterized in that: be less than 5 meters by the spacing between two main push-towing ropes (10) of wide cut cat road erection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520848288.8U CN205134195U (en) | 2015-10-29 | 2015-10-29 | A broad width catwalk for setting up two main push -towing ropes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520848288.8U CN205134195U (en) | 2015-10-29 | 2015-10-29 | A broad width catwalk for setting up two main push -towing ropes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205134195U true CN205134195U (en) | 2016-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520848288.8U Withdrawn - After Issue CN205134195U (en) | 2015-10-29 | 2015-10-29 | A broad width catwalk for setting up two main push -towing ropes |
Country Status (1)
| Country | Link |
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| CN (1) | CN205134195U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105256725A (en) * | 2015-10-29 | 2016-01-20 | 中交第二航务工程局有限公司 | Wide catwalk for erection of double main cables |
| CN106758859A (en) * | 2017-03-13 | 2017-05-31 | 中交第四公路工程局有限公司 | A kind of suspension bridge cat road head-rope changes shifting displacement fixing device and method |
-
2015
- 2015-10-29 CN CN201520848288.8U patent/CN205134195U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105256725A (en) * | 2015-10-29 | 2016-01-20 | 中交第二航务工程局有限公司 | Wide catwalk for erection of double main cables |
| CN105256725B (en) * | 2015-10-29 | 2017-05-17 | 中交第二航务工程局有限公司 | Wide catwalk for erection of double main cables |
| CN106758859A (en) * | 2017-03-13 | 2017-05-31 | 中交第四公路工程局有限公司 | A kind of suspension bridge cat road head-rope changes shifting displacement fixing device and method |
| CN106758859B (en) * | 2017-03-13 | 2019-06-25 | 中交四公局第六工程有限公司 | A kind of suspension bridge cat road head-rope changes shifting and conjugates fixed device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160406 Effective date of abandoning: 20170517 |
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| AV01 | Patent right actively abandoned |