CN105603879B - The construction technology in large-scale pipeline crossing construction cat road - Google Patents
The construction technology in large-scale pipeline crossing construction cat road Download PDFInfo
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- CN105603879B CN105603879B CN201511001759.2A CN201511001759A CN105603879B CN 105603879 B CN105603879 B CN 105603879B CN 201511001759 A CN201511001759 A CN 201511001759A CN 105603879 B CN105603879 B CN 105603879B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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Abstract
The invention discloses a kind of construction technology in large-scale pipeline crossing construction cat road, it is related to the technical field of construction of pipeline suspension crossing bridge.The construction technology in the large-scale pipeline crossing construction cat road passes through the steps such as scheme is prefabricated, cat road is prefabricated, cat road is linear and pylon perpendicularity is adjusted, cat road is integrally lifted, there is provided a kind of construction passage that main push-towing rope is installed suitable for the aerial method for prefabricating such as long- span crossing PPWS（Ji Mao roads）Installation method, the high-altitude for effectively reducing cat road is installed and overall construction period.
Description
Technical field
It is that a kind of large-scale pipeline leap is applied specifically the present invention relates to the technical field of construction of pipeline suspension crossing bridge
The construction technology in Gong Mao roads.
Background technology
Cable-stayed applies more due to its relatively low investment and the construction technology of maturation in Oil pipeline.It is outstanding
Rope Oil pipeline is made up of substructure with superstructure, and substructure is mainly made up of pile foundation, anchorage, cushion cap etc., top knot
Structure is mainly made up of hinged steel tower, main rope system, the truss body of a bridge, wind rope system, pipeline etc..
With the trend that Pipe installing maximizes, the stronger pylon structure of armored concrete equivalent-load ability also more application
In aerial crossing pipeline structure.Meanwhile, with the trend that pipeline aerial crossing is maximized, pipeline body of a bridge load also gradually increases, traditional
Due to diameter and length increase, the transportation clearance and weight of single main push-towing rope are already unsuitable for full factory prefabricating cable
Long-distance whole Transporting, thus in recent years the bridge main rope erection method such as PPWS (Prefabricated parallel hawser) method be also gradually applied to across
More in structure.The construction of PPWS methods main rope is more due to aerial operation, long construction period, it is necessary to set up aerial work passage, Ji Mao roads.
Traditional erection method in cat road generally needs to wait bridge tower to be made in the air again after the completion of constructing, and overall construction period is more long,
The cat road work high above the ground time is long, and material and personnel's transport are also inconvenient.Because the construction period of Oil pipeline is short compared with highway bridge,
Therefore seek more convenient, efficiently cat road mounting process, be conducive to Optimizing construction cycle and safety management, be also to improve cable
Set up the approach of this critical construction node efficiency.
The content of the invention
Aerial crossing pipeline structure maximization, cable bridge are main development trends, thus main push-towing rope need to carry out it is aerial pre-
System is installed, and the erection of construction catwalk also becomes large-scale pipeline Oil pipeline needs the problem of concern.It is above-mentioned existing in order to overcome
The deficiency of technology, patent of the present invention provides a kind of construction technology in large-scale pipeline crossing construction cat road, it is therefore an objective to which design is a kind of
The construction passage of main push-towing rope is installed suitable for the aerial method for prefabricating such as long- span crossing PPWS（Ji Mao roads）Installation method, effectively reduce
Install and overall construction period in the high-altitude in cat road.
To achieve the above object, technical scheme is as follows：
The construction technology in large-scale pipeline crossing construction cat road, it is characterised in that further comprising the steps of：
A, scheme are prefabricated：For the geomorphic feature for needing pipeline aerial crossing to build, pylon and cat road force analysis are carried out, drawn
Force parameter is received in pylon deviant and cat road, determines processing step；
A1, cat road it is prefabricated：Cat road includes separate Zhong Kuamao roads and end bay cat road, prefabricated Zhong Kuamao roads and end bay
, be fixed between two pylons in the Zhong Kuamao roads of formulation in the pylon pouring construction stage by cat road；
A2, cat road are linear and pylon perpendicularity is adjusted：End bay cat road is arranged on pylon, and line is entered to end bay cat road
Shape is adjusted, and it is met force analysis and is obtained cat road by force parameter, and pylon skew setting, it is met what force analysis was obtained
Pylon deviant；
A3, cat road are integrally lifted：Zhong Kuamao roads are promoted to tower top position.
Further, in content A1, the installation in Zhong Kuamao roads first by bearing steel wire rope disk, put rope frame and be hung to Shou Tata
Bottom, is coordinated using tower crane and track cable front end is connected with pull rope, track cable is reached to tailing column by hoist engine trailer system
Sill, Jiang Suotou is connected to tailing column, then rear end is connected into first tower.
Further, the track cable after installation is complete, is connected with each other by crossbeam, and by bolt by crossbeam with hold
Weight rope is fixed, and in crossbeam upper strata laying cat road surface layer.
Further, the installation of cat road surface layer is carried out using prefabricated drawing method, i.e., prefabricated one section is drawn one section, until
Whole cat road is fixed on track cable after being paved with using U bolt, and Zhong Kuamao roads are laid from tower top toward span centre direction, end bay cat road
Laid toward tower top direction from anchorage.
Further, after the completion of cat road topping laying, handrail net, the installation in walking road are carried out, after installing, and
It is adjusted by the connection system of tower top, until view picture cat diatom shape meets the requirements.
Further, in the A3 contents, the Zhong Kuamao roads of lifting are quickly connected by anchor, anchor
Formed with pre-embedded steel slab welding production using anchor bar, anchor bar is weldingly connected with entablature main reinforcement.
Further, in concreting process, surface is placed in outside concrete the pre-embedded steel slab, treats that pylon is constructed
After the completion of using welding by the way of with anchor bar welding.
Further, in the A2 contents, according to the pylon deviant that force analysis draws, by balancing tensioning equipment pair
Pylon carry out it is pre- partially, the skew of pylon balances the uneven cross force to pylon generation in cat road entirety lifting process, and disappears
The extra-stress produced to pylon during except lifting, it is ensured that pylon structure safety.
Further, in the A3 contents, it is necessary to after the completion of Zhong Kuamao roads are prefabricated on sill, then across cat in being lifted
Road integrally arrives tower top, during continuous adjustment balance tensioning equipment, until the lifting of cat road in place and is anchored, and to Hou Mao roads in place
Integral linear adjustment is carried out again, and straight each structure stress and position meet design requirement, so as to complete whole technique.
Further, in A1 contents, according to mechanics feature, set up cat road and integrally lift analysis model, using non-linear
Analysis software carries out simulation analysis, and according to the mechanics situation of each key structure during whole process simulation process implementing, adjustment is true
Determine tower top lifting device parameter, the pre- bias of pylon.
The beneficial effects of the present invention are：Compared with the cat road integral installation technique of traditional suspension bridge, the present invention is most bright
Aobvious advantage is to overcome traditional suspension bridge construction cat road must to carry out construction and installation at the top of bridge tower after bridge tower completion
Problem, improves that cat road is prefabricated and installation level and efficiency, reduces work high above the ground risk.No matter from the engineering time, efficiency of construction,
Construction economy aspect is superior to traditional cat road mounting process.
By engineering it was verified that due to the prefabricated work in cat road can be started rather than tradition in the pylon construction stage
Technique need pylon complete after could start, hence across the overall duration can reduce more than 20 days；Due to substantial amounts of cat road
Prefabricated work starts at bottom of towe crossbeam position, and cat road construction material requested is in place and installs more convenient, therefore can be effective
Reduce the work high above the ground time.
In summary factor, has significantly using large-scale pipeline crossing construction cat road is integral prefabricated with lifting construction technique
Economic benefit and social benefit.
Brief description of the drawings
Fig. 1 is the construction flow chart in the large-scale pipeline crossing construction cat road that the present invention is provided.
Fig. 2 is the A1 step Zhong Mao roads Construction State schematic diagram that the present invention is provided.
Fig. 3 is the A2 step Zhong Mao roads Construction State schematic diagram that the present invention is provided.
Fig. 4 is the A3 step Zhong Mao roads Construction State schematic diagram that the present invention is provided.
Marked in figure：1 be pylon, 2 be end bay cat road, 3 be Zhong Kuamao roads, 4 for balance tensioning equipment, 5 be hoist engine, 6
For sill, 7 be track cable, 8 be Mao Dao faces, 9 be tower crane.
Specific embodiment
The present invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, the construction technology in large-scale pipeline crossing construction cat road, comprises the following steps：A, scheme are prefabricated：For
The geomorphic feature for needing pipeline aerial crossing to build, carries out pylon 1 and cat road force analysis, draws the deviant of pylon 1 and cat road stress
Parameter, determines processing step；A1, cat road it is prefabricated：Cat road include separate Zhong Kuamao roads 3 and end bay cat road 2, it is prefabricated in
, be fixed between two pylons 1 in the Zhong Kuamao roads 3 of formulation in the pouring construction stage of pylon 1 by across cat road 3 and end bay cat road 2；A2、
Cat road is linear and the perpendicularity of pylon 1 is adjusted：End bay cat road 2 is arranged on pylon 1, and LFM signal is carried out to end bay cat road 2,
It is met force analysis and obtain cat road by force parameter, and the skew setting of pylon 1, it is met the pylon 1 that force analysis is obtained
Deviant；A3, cat road are integrally lifted：Zhong Kuamao roads 3 are promoted to tower top position.
According to the structure type and loading characteristic crossed over, cat road is constituted by 3 sections, Ji Zhongkuamao roads, end bay cat road 2.In across
Cat road 3 needs just be carried out after the completion of pylon 1 due to conventional mounting, therefore uses cat road integral prefabricated and lifting construction work
Skill.Cat road is mainly made up of track cable 7, Mao Dao faces 8, railing, handrail, roller etc..Mao Dao faces 8 are less than main push-towing rope center about 1.2m,
On the basis of main push-towing rope diameter, main push-towing rope spacing, cable compacting machine and winding machine and wire minimum working space is considered, the surface layer of end bay cat road 2
Width be for about 4.4 m, upstream and downstream main push-towing rope shares a Fu Mao roads；3 points of Zhong Kuamao roads are each two width in upstream and downstream, per Fu Mao roads face 8
The width of layer is for about 2.0 m, Liang Fumao roads spacing 0.6m.
The installation of cat road track cable 7, track cable 7, track cable are made in cat road across every Fu Mao roads from 4 Ф 32mm steel wire ropes
7 be anchored in tower end respectively with retainer clip, on the connector on anchorage surface, in 7 points of track cable across with end bay two across disconnecting cloth
Put.
When 3 track cable of Zhong Kuamao roads 7 is installed, by bearing steel wire rope disk, put rope frame and be hung to first tower bottom of towe, using tower crane 9
With the pull ropes of φ 22 be connected for its front end by cooperation, starts the trailer system of 10t hoist engines 5, and Shi Mao roads track cable 7 is to tailing column sill
6 tops are advanced, while putting Suo Sudu using the regulation of rope frame brake gear is put；When the front end of track cable 7 reaches tailing column sill 6
Afterwards, rope head is connected with the interim attachment means of sill 6 for setting, then rear end is consolidated with the first top cat road anchor beam of tower sill 6
It is fixed.After whole cat roads track cable 7 has set up, each Suo Zhongdian absolute altitudes are measured, its absolute altitude are adjusted by root with hydraulic jack, it is desirable to
Span centre absolute altitude deviation between the same each track cable 7 in Fu Mao roads is not more than 30mm.
The installation of crossbeam, track cable 7 is connected by crossbeam each other, and crossbeam is made using 8# channel-section steels, is arranged by 3m spacing,
And crossbeam is fixed with track cable 7 with U bolt.
Using two-layer steel wire as 8 layers of Mao Dao faces, steel wire is respectively by Ф's 3.0 (hole 40mm × 40mm) on crossbeam upper strata
Generous eye welded wire fabric and Ф 1.0（16mm×16mm）Small side eye steel wire, cat road rigidity needs and smallclothes are met respectively
Drop protection.Simultaneously for the safety and comfortableness of air walk, this crosses over cat road on surface layer steel wire every 0.5m colligations
Fixed specification is the non-slip wood of 80 × 4 × 70 cm.
The installation that 8 layers of Mao Dao faces, the installation that 8 layers of Mao Dao faces is carried out using prefabricated drawing method, i.e., prefabricated one section（3m）Traction
One section, it is fixed on using U bolt on track cable 7 after whole cat road is paved with.When prefabricated, cat road crossbeam, steel wire are pacified
Install and carry out traction installation after finishing.In across from tower top toward span centre direction lay, end bay from anchorage toward tower top direction lay.End bay cat
After road 2 draws in place, the installation of handrail net is carried out immediately.After installing, it is adjusted by tower top connection system, until whole
Fu Mao roads line style meets the requirements.Cat road is anchored in tower top down at about 0.8m positions, in Sarasota concrete construction, in advance at this
Location arrangements built-in fitting.
Lifting regulation and the installation of stabilising arrangement, adjusting means are used to install cat road tensioning adjusting apparatus, meet cat road peace
Positioning and anchoring in place is filled, while being adjusted to the linear of cat road by adjusting reinforcing bar in meeting work progress.
Anchor is formed using anchor bar with pre-embedded steel slab welding production, in the entablature reinforcing bar compilation process of pylon 1
In, dowel is weldingly connected with entablature main reinforcement, and in concreting process, pre-embedded steel slab surface is placed in outside concrete.Treat
Pylon 1 welds anchoring adjusting apparatus and pre-embedded steel slab by the way of welding after the completion of constructing.
After the construction of pylon 1 is finished, inspection pours record, the intensity cycle is calculated, to determine whether pylon 1 possesses next step
Lifting and stabilising arrangement installation requirements.Meanwhile, after the form removable of pylon 1 is finished, under the quantity and position for checking built-in fitting meet
The procedure calls of step.
After the acceptance(check) of pylon 1, lifting device is installed in tower top, device is that shaped steel welds frame structure, by 6 HW300
Shaped steel and 3 HW250 group welderings are formed.Physical dimension 3m high, 4m wide.Structure is encorbelmented 1m to span centre direction.20 tons are installed in structure
Lifting pulley, and with hoist engine under bridge tower 5 groups be connected.Meet cat road entirety enhanced feature.
It is the uneven cross force produced to pylon 1 in balance cat road entirety lifting process, is installed in the dorsal funciculus direction of pylon 1
Tensioning equipment 4 is balanced, according to the pre- bias of pylon 1 of upright analysis, pre- inclined, balance this patent implementation lifting work is carried out to pylon 1
The extra-stress produced to pylon 1 during skill, it is ensured that the structure safety of pylon 1.
The lifting in Zhong Kuamao roads 3 is in place, after the completion of Zhong Kuamao roads 3 are prefabricated on the sill 6, i.e., is integrally carried using lift method
Tower top connection system is raised to be anchored.In the lifting process of Zhong Kuamao roads 3, because single span cat road overall weight is larger（About 19
Ton）, work progress is larger to the mechanics influence of tower body, it is therefore desirable to carry out force analysis simulation and the field conduct prison of overall process
Control.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. the construction technology in large-scale pipeline crossing construction cat road, it is characterised in that further comprising the steps of：
A, scheme are prefabricated：For the geomorphic feature for needing pipeline aerial crossing to build, pylon and cat road force analysis are carried out, draw pylon
Force parameter is received in deviant and cat road, determines processing step；
A1, cat road it is prefabricated：Cat road includes separate Zhong Kuamao roads and end bay cat road, prefabricated Zhong Kuamao roads and end bay cat
, be fixed between two pylons in the Zhong Kuamao roads of formulation in the pylon pouring construction stage by road；
A2, cat road are linear and pylon perpendicularity is adjusted：End bay cat road is arranged on pylon, and linear tune is carried out to end bay cat road
It is whole, it is met force analysis and obtain cat road by force parameter, and pylon skew setting, it is met the pylon that force analysis is obtained
Deviant；
A3, cat road are integrally lifted：Zhong Kuamao roads are promoted to tower top position.
2. the construction technology in large-scale pipeline crossing construction cat road according to claim 1, it is characterised in that：In content A1
In, the installation in Zhong Kuamao roads first by bearing steel wire rope disk, put rope frame and be hung to first tower bottom of towe, coordinated before track cable using tower crane
End is connected with pull rope, track cable is reached to tailing column sill by hoist engine trailer system, and Jiang Suotou is connected to tailing column, then
Rear end is connected to first tower.
3. the construction technology in large-scale pipeline crossing construction cat road according to claim 2, it is characterised in that：The track cable
After installation is complete, it is connected with each other by crossbeam, and crossbeam is fixed with track cable by bolt, and in crossbeam upper strata paving
If cat road surface layer.
4. the construction technology in large-scale pipeline crossing construction cat road according to claim 3, it is characterised in that：The Mao Dao faces
The installation of layer is carried out using prefabricated drawing method, i.e., prefabricated one section is drawn one section, solid using U bolt after whole cat road is paved with
It is scheduled on track cable, Zhong Kuamao roads are laid from tower top toward span centre direction, end bay cat road is laid from anchorage toward tower top direction.
5. according to the construction technology in any described large-scale pipeline crossing construction cat road of claim 3 or 4, it is characterised in that：Institute
After the completion of Shu Mao roads topping laying, handrail net, the installation in walking road are carried out, after installing, and the connection system for passing through tower top
It is adjusted, until view picture cat diatom shape meets the requirements.
6. the construction technology in large-scale pipeline crossing construction cat road according to claim 1, it is characterised in that：The A3 contents
In, the Zhong Kuamao roads of lifting are quickly connected by anchor, and anchor is welded using anchor bar with pre-embedded steel slab
It is made, anchor bar is weldingly connected with entablature main reinforcement.
7. the construction technology in large-scale pipeline crossing construction cat road according to claim 6, it is characterised in that：The pre-buried steel
In concreting process, surface is placed in outside concrete plate, treat pylon construction after the completion of using welding by the way of with anchor
Reinforcement welding.
8. the construction technology in large-scale pipeline crossing construction cat road according to claim 1, it is characterised in that：The A2 contents
In, according to the pylon deviant that force analysis draws, pre- inclined, the skew balance of pylon is carried out to pylon by balancing tensioning equipment
The uneven cross force produced to pylon in Liao Mao roads entirety lifting process, and additionally should to pylon generation when eliminating lifting
Power, it is ensured that pylon structure safety.
9. the construction technology in large-scale pipeline crossing construction cat road according to claim 1, it is characterised in that：The A3 contents
In, it is necessary to after the completion of Zhong Kuamao roads are prefabricated on sill, then lift Zhong Kuamao roads and integrally arrive tower top, during constantly adjust
Balance tensioning equipment, until cat road is lifted in place and anchored, and carries out integral linear adjustment, Zhi Gejie again to Hou Mao roads in place
Structure stress and position meet design requirement, so as to complete whole technique.
10. the construction technology in large-scale pipeline crossing construction cat road according to claim 1, it is characterised in that：In A1 contents
In, according to mechanics feature, set up cat road and integrally lift analysis model, simulation analysis are carried out using nonlinear analysis software, according to
The mechanics situation of each key structure during whole process simulation process implementing, adjustment determines that tower top lifting device parameter, pylon are pre-
Bias.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201511001759.2A CN105603879B (en) | 2015-12-29 | 2015-12-29 | The construction technology in large-scale pipeline crossing construction cat road |
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| CN201511001759.2A CN105603879B (en) | 2015-12-29 | 2015-12-29 | The construction technology in large-scale pipeline crossing construction cat road |
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| CN105603879A CN105603879A (en) | 2016-05-25 |
| CN105603879B true CN105603879B (en) | 2017-06-23 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110438880B (en) * | 2019-08-21 | 2021-04-20 | 中国水利水电第八工程局有限公司 | Construction method and construction system for erecting cat track cable of large-span suspension bridge |
| CN112195784B (en) * | 2020-09-15 | 2022-06-17 | 中交第二公路工程局有限公司 | Catwalk sag adjustment system and adjustment method for erecting main cable by adopting air spinning method |
| CN112464534B (en) * | 2020-11-27 | 2023-07-18 | 四川石油天然气建设工程有限责任公司 | Oil and gas pipe suspension cable crossing simulation analysis model and construction method thereof |
| CN113512946B (en) * | 2021-04-21 | 2022-05-20 | 招商局重庆交通科研设计院有限公司 | Deviation error control method for main tower of suspension bridge |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002038421A (en) * | 2000-07-27 | 2002-02-06 | Shinko Wire Co Ltd | Erection method of structure |
| CN101177931B (en) * | 2007-12-05 | 2011-08-10 | 中铁大桥局股份有限公司 | Erection of gantry type small-cycle traction system on large-span suspension bridge main cable |
| CN101418542B (en) * | 2008-11-21 | 2013-12-25 | 上海市政工程设计研究总院 | Cable system construction method of spatial self-anchored rope-suspension bridge |
| CN201952738U (en) * | 2011-01-30 | 2011-08-31 | 中交三航局第三工程有限公司 | Catwalk suitable for self-anchored double-cable-plane suspension bridge |
| CN104652276B (en) * | 2015-01-12 | 2016-09-14 | 中交第二公路工程局有限公司 | A kind of main rope of suspension bridge PPWS construction strand erection method in situ |
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