CN201952738U - Catwalk suitable for self-anchored double-cable-plane suspension bridge - Google Patents

Catwalk suitable for self-anchored double-cable-plane suspension bridge Download PDF

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Publication number
CN201952738U
CN201952738U CN2011200320641U CN201120032064U CN201952738U CN 201952738 U CN201952738 U CN 201952738U CN 2011200320641 U CN2011200320641 U CN 2011200320641U CN 201120032064 U CN201120032064 U CN 201120032064U CN 201952738 U CN201952738 U CN 201952738U
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CN
China
Prior art keywords
catwalk
cat
self
cable
cat road
Prior art date
Application number
CN2011200320641U
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Chinese (zh)
Inventor
魏德新
蒋建荣
第五龙
姜灵程
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中交三航局第三工程有限公司
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Application filed by 中交三航局第三工程有限公司 filed Critical 中交三航局第三工程有限公司
Priority to CN2011200320641U priority Critical patent/CN201952738U/en
Application granted granted Critical
Publication of CN201952738U publication Critical patent/CN201952738U/en

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Abstract

The utility model discloses a catwalk suitable for a self-anchored double-cable-plane suspension bridge. The catwalk is characterized by consisting of a catwalk track cable, a catwalk panel structure, an anchoring system and an adjusting device, wherein the catwalk is formed on the lower part of a main cable of the suspension bridge; the catwalk panel structure comprises a surface layer, a guardrail and a transverse beam; the surface layer comprises a coarse net and a fine net; the coarse net is arranged on the lower side of the fine net; the guardrail comprises a guardrail upright post; the guardrail upright post is provided with a handrail rope; and the outer side of the guardrail is provided with a guardrail side net. The catwalk can be fully matched with the shape of the main cable, is convenient for constructing, and has a stable structure and high intensity; and the construction safety is enhanced.

Description

A kind of cat road that is applicable to the two rope face suspension bridges of self-anchoring type

Technical field

The utility model relates to a kind of bridge scaffold, specifically, is a kind of cat road that is applicable to the two rope face suspension bridges of self-anchoring type.

Background technology

In the work progress of suspension bridge, main push-towing rope set up, tighten up and a series of activities such as maintenance in the future need be finished at the top of king-tower, therefore need build auxiliary equipment and be scaffold delivers to top of tower with the constructor and carries out operation, in general, traditional scaffold is arranged on the king-tower limit, by stair being set or the cage elevator is delivered to cat head with the constructor, be provided with the stand platform of construction for the constructor at top of tower.The length of platform can change with the actual requirement of construction, at the edge of platform railing is set, and in platform bottom or top bracing frame is set.Such scaffold has a fatal defective to be that the length of its platform can not be long, in case long, when the constructor stood in the platform far-end, caving in can appear in platform, causes the accident; And because there is certain radian in main push-towing rope, traditional platform can't change according to the radian of main push-towing rope, and normal construction working has been caused inconvenience.

Summary of the invention

The purpose of this utility model is to provide a kind of cat road of the two rope face suspension bridges of self-anchoring type that is applicable to address the above problem.

The utility model adopts following technical scheme to be realized:

A kind of cat road that is applicable to the two rope face suspension bridges of self-anchoring type, described cat road is by cat road track cable, cat pavement slab structure, anchoring system, adjusting device are formed, and described cat road is arranged on the main push-towing rope bottom of suspension bridge, and described cat pavement slab structure comprises surface layer, railing, crossbeam.

As a kind of improvement of the present utility model, described surface layer comprises coarse net and fine-structure mesh, and described coarse net is arranged on the downside of fine-structure mesh.

Surface layer is provided with two layers of mesh, has both guaranteed the structural strength of surface layer, has also alleviated the sole mass of surface layer simultaneously, and the quality that the cat road can be born increases.

Described railing comprises railing post, and manrope is set on railing post, and the outside of described railing also is provided with railing side net.

Manrope is set makes constructor's grasping, make things convenient for it on the cat road, to walk; Railing side net is set prevents that the constructor from falling owing to unbalance.

Description of drawings

Fig. 1 is the utility model overall diagram.

Fig. 2 is the schematic diagram of the utility model cat pavement slab structure.

Fig. 3 is the utility model surface layer structure schematic diagram.

Wherein 1-track cable, 2-railing side net, 3-railing post, 4-manrope, 5-coarse net, 6-fine-structure mesh, 7-crossbeam.

The specific embodiment

Below in conjunction with Figure of description the utility model is described in further detail:

The utility model relates to the auxiliary scaffold in a kind of bridge manufacturing field, specifically, it is a kind of cat road that is applicable to the two rope face suspension bridges of self-anchoring type, more precisely, it is a kind of steel cable bridge that has handrail that reaches between the suspension bridge king-tower top of tower between king-tower top and the beam face that is arranged on, described cat road comprises track cable 1, panel construction, anchoring system and adjusting device, described track cable connects king-tower top and beam face by anchoring system, specifically, described track cable 1 is eight φ 26 independent wire strands, and two ends adopts load-bearing pyriform ring to be connected with anchoring piece with chuck.The track cable fag end is connected with anchor beam with φ 32 adjusting yokes by Connection Block, and anchor beam is connected with the cat head hanger by pull bar, constitutes compound adjusting device.

The track cable upper end is provided with adjusting device at cat head, adjusting device is made of jointly adjusting yoke and anchor beam pull bar, the regulated quantity of regulating anchor pole reaches 800mm, the regulated quantity of anchor beam pull bar reaches 1000mm, total regulated quantity 1800mm, can satisfy each linear adjustment in stage cat road of construction, the lower end employing is provided with anchor ring at bridge floor and directly is connected with steel wire rope head.

The cat road adopts end bay and middle span separate type structure arrangement form, in stride anchor in cat head, end bay one end anchor is on the beam face, other end anchor is in cat head, adjusting device is established in the cat head both sides, is used for adjusting the construction sag.The linear empty cable shape of main push-towing rope, cat road identity distance main push-towing rope center 1.4m, the wide 3.5m of surface layer of being parallel to of cat road face.

In the utility model, described cat pavement slab structure comprises crossbeam 7, surface layer, described surface layer comprises coarse net 5, fine-structure mesh 6, coarse net 5 contacts with track cable 1, fine-structure mesh 6 is set thereon, edge at surface layer is provided with railing post 3, and manrope 4 is set between railing post 3, at column 3 arranged outside railing side nets 2.

Below by concrete form of construction work the utility model is described:

During installation track cable 1 is transported to the beam face, the artificial expansion, in stride the track cable two ends and insert the connector bearing pin respectively, the end bay track cable is only installed the anchor end, and be connected with anchor beam by φ 32 adjusting yokes, this moment, φ 32 adjusting yokes should be in the maximal regulated scope, anchor beam directly is connected with the cat head anchor pole of packing into the loop wheel machine lifting on the described end bay, cast anchor and utilize the Chain block pin joint of pulling back to fix at the end floor beam place, the last anchor anchor beam of striding in described then at first anchored end directly carries out pin joint with the loop wheel machine lifting with the cat head hanger, and hoist engine is connected with the cat head anchor pole of packing into by cat head corner block vertical-lift pulling at the bottom of adjusting end and adopting tower.

Answer root to adjust according to empty cable absolute altitude is on-the-spot after track cable sets up and finishes, to guarantee the unloaded line style basically identical of cat road line style and main push-towing rope, specifically, the adjustment of track cable sag is divided into relative elevation adjustment and absolute elevation adjustment.The relative elevation adjustment is adjusted the relative relief of 8 head-ropes by φ 32mm bolt, makes 8 head-rope uniform tension in order.By adjusting the anchor pole that anchor beam is connected with the cat head hanger, carry out the adjustment of cat road absolute elevation then, make the linear sag requirement that reaches design code in cat road.

In cat road track cable adjustment process, in order to guarantee the horizontal equilibrium of forces of cat head, its upstream and downstream and master, setting up of end bay cat road track cable should be carried out in proper order in strict accordance with adjustment, at any time linear and king-tower displacement are monitored.

After the track cable adjustment finishes, on track cable, lay cat road surface layer.Cat road surface layer draws laying method on adopting, by structural requirement two-layer veil is twisted in and to spread suitable length on the platform out, the various materials of cat road surface layer will be formed, as anti-skidding batten, thickness surface layer net, angle steel etc., it is good to press the design attitude colligation, and the crossbeam at its top is not tightened U type card nut with U type card and cat road load-bearing claim-reduction connection, in order to dilatory, it is firm that 2 ropes made of hemp that cat head is put down and crossbeam are connected by " people " font mode.

Manually on tower that surface layer is upwards dilatory subsequently, dilatory central sill face assists progressively to loosen simultaneously.Dilatory so repeatedly paving one section installed one section, and in the dilatory process, U type card is not tightened U type card nut with surface layer crossbeam and cat road load-bearing claim-reduction connection, with convenient dilatory.Spread when a volume, and then the top of second volume has been pulled out with manpower, twined with No. 8 iron wires with the end of last volume and connect, and assisted and add 2~3 wire line shoes, pressed preceding method then and draw, so repeatedly until putting in place with reinforcement.

In stride, the laying progress of end bay cat road face, with the both sides horizontal force difference of tower principle greatly not, want the skew of monitoring tower and the sag of track cable 1 in the process, to guarantee safety.

At last, prefabricated railing post 3 is installed to the centre from the surface layer two ends, simultaneously the U type card of polishing crossbeam is also tightened all nuts, after the railing post 3 for the treatment of a side all adorn, manrope 4 is fixed on the railing post 3, and installation railing side net 2.

Claims (4)

1. cat road that is applicable to the two rope face suspension bridges of self-anchoring type, it is characterized in that: described cat road is made up of cat road track cable (1), cat pavement slab structure, anchoring system, adjusting device, and described cat road is arranged on the main push-towing rope bottom of suspension bridge.
2. a kind of cat road that is applicable to the two rope face suspension bridges of self-anchoring type according to claim 1, it is characterized in that: described cat pavement slab structure comprises surface layer, railing, crossbeam (7).
3. a kind of cat road that is applicable to the two rope face suspension bridges of self-anchoring type according to claim 2, it is characterized in that: described surface layer comprises coarse net (5) and fine-structure mesh (6), and described coarse net (5) is arranged on the below of fine-structure mesh (6).
4. a kind of cat road that is applicable to the two rope face suspension bridges of self-anchoring type according to claim 3, it is characterized in that: described railing comprises railing post (3), manrope (4) is set on railing post, and the outside of described railing also is provided with railing side net (2).
CN2011200320641U 2011-01-30 2011-01-30 Catwalk suitable for self-anchored double-cable-plane suspension bridge CN201952738U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011200320641U CN201952738U (en) 2011-01-30 2011-01-30 Catwalk suitable for self-anchored double-cable-plane suspension bridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011200320641U CN201952738U (en) 2011-01-30 2011-01-30 Catwalk suitable for self-anchored double-cable-plane suspension bridge

Publications (1)

Publication Number Publication Date
CN201952738U true CN201952738U (en) 2011-08-31

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Application Number Title Priority Date Filing Date
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104805770A (en) * 2015-04-15 2015-07-29 中交二公局第二工程有限公司 Method for erecting canyon-spanning temporary passage applicable to mountainous area
CN105155427A (en) * 2015-10-22 2015-12-16 江苏法尔胜缆索有限公司 Construction method for laying suspension bridge catwalk
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
CN105401524A (en) * 2015-10-23 2016-03-16 中交第二公路工程局有限公司 Structural device for enabling continuous catwalk track cable to pass by tower top for suspension bridge
CN105603879A (en) * 2015-12-29 2016-05-25 四川石油天然气建设工程有限责任公司 Construction technology for large-diameter pipeline crossing construction catwalk
CN107447665A (en) * 2017-08-16 2017-12-08 中国十七冶集团有限公司 A kind of laying method of self-anchored suspension bridge construction cat road carrying rope

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104805770A (en) * 2015-04-15 2015-07-29 中交二公局第二工程有限公司 Method for erecting canyon-spanning temporary passage applicable to mountainous area
CN105155427A (en) * 2015-10-22 2015-12-16 江苏法尔胜缆索有限公司 Construction method for laying suspension bridge catwalk
CN105155427B (en) * 2015-10-22 2016-11-16 江苏法尔胜缆索有限公司 The construction method that suspension bridge cat road is laid
CN105401524A (en) * 2015-10-23 2016-03-16 中交第二公路工程局有限公司 Structural device for enabling continuous catwalk track cable to pass by tower top for suspension bridge
CN105401524B (en) * 2015-10-23 2017-07-04 中交第二公路工程局有限公司 A kind of suspension bridge continous way cat road track cable crosses tower top constructional device
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
CN105603879A (en) * 2015-12-29 2016-05-25 四川石油天然气建设工程有限责任公司 Construction technology for large-diameter pipeline crossing construction catwalk
CN107447665A (en) * 2017-08-16 2017-12-08 中国十七冶集团有限公司 A kind of laying method of self-anchored suspension bridge construction cat road carrying rope

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