CN103510471B - The maintenance structure of parabola shaped post plate type hollow bridge pier pier shaft and maintenance process - Google Patents
The maintenance structure of parabola shaped post plate type hollow bridge pier pier shaft and maintenance process Download PDFInfo
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- CN103510471B CN103510471B CN201310382494.XA CN201310382494A CN103510471B CN 103510471 B CN103510471 B CN 103510471B CN 201310382494 A CN201310382494 A CN 201310382494A CN 103510471 B CN103510471 B CN 103510471B
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Abstract
The invention discloses a kind of maintenance structure of parabola shaped post plate type hollow bridge pier pier shaft, comprise treat maintenance bridge pier pier shaft, operation platform, outer cover canvas and maintenance of equipment, outer cover canvas is wrapped up pier shaft entirely by the outer climbing frame of operation platform, maintenance of equipment comprises steam raising plant, the master/slave pipeline of steam, steam raising plant is connected to operation platform by main steam header road, steam secondary duct is arranged in around pier shaft, and electric heating equipment and electric tungsten lamp layering are arranged on operation platform.Maintenance process of the present invention adopts full parcel stream curing method and is assisted insulation in conjunction with electric heater and electric tungsten lamp, first operation platform outer cover canvas is wrapped up entirely, open steam raising plant, electric heating equipment and electric tungsten lamp and stream curing is carried out to pier shaft, after pier shaft intensity reaches requirement, continue external mold platform and outer climbing frame that next joint pier shaft is installed, so move in circles until pier construction maintenance completes.Structure of the present invention is simple, easy to operate, maintenance effect is good, safety is high.
Description
Technical field
The invention belongs to bridge building operations maintenance technology field, particularly relate to a kind of maintenance structure and maintenance process of bridge pier pier shaft.
Background technology
In the building construction process of especially big bridge pier, due to construction speed and the requirement of node duration, part pier shaft can enter into constructs winter.But, winter construction pier shaft often needs to overcome multinomial technical barrier, such as need to prevent concrete structure not by freeze injury, needing to ensure that concrete does not freeze when pouring into, therefore, take effective and feasible construction measure in Winter to be the necessary means ensureing workmanship and construction speed.
Summary of the invention
The technical problem to be solved in the present invention overcomes the deficiencies in the prior art, there is provided a kind of structure simply, easily to build, the maintenance structure of easy to operate parabola shaped post plate type hollow bridge pier pier shaft, the also corresponding maintenance process that the parabola shaped post plate type hollow bridge pier pier shaft that a kind of maintenance effect is good, easy and simple to handle, safety is high is provided.
For solving the problems of the technologies described above, the technical scheme that the present invention proposes is a kind of maintenance structure of parabola shaped post plate type hollow bridge pier pier shaft, described maintenance structure comprises the bridge pier pier shaft treating maintenance, build the operation platform on pier shaft, outer cover canvas and maintenance of equipment, described outer cover canvas is wrapped up pier shaft entirely by the outer climbing frame of operation platform, described maintenance of equipment comprises steam raising plant, steam conveying pipe, electricity heating equipment and electric tungsten lamp, described steam conveying pipe comprises main steam header road and steam secondary duct, steam raising plant is connected to the operation platform in outer cover canvas by main steam header road, steam secondary duct is arranged in around pier shaft, main steam header road is communicated with steam secondary duct, described electric heating equipment and electric tungsten lamp layering are arranged on operation platform, and arrange near the outside of pier shaft.
In above-mentioned maintenance structure, preferably, the described outer cover canvas bridge pier pier shaft treating maintenance on a cushion cap that freely hangs is closed.
In above-mentioned maintenance structure, preferably, described main steam header road is picked out to tower crane by steam raising plant, and is connected to described operation platform with the tower ladder of tower crane.
In above-mentioned maintenance structure, preferably, described steam secondary duct is furnished with two-layer at least up and down around pier shaft, and described main steam header road is connected by Big Diameter Rubber flexible pipe with between steam secondary duct, is connected between described steam secondary duct by minor diameter rubber hose.
In above-mentioned maintenance structure, preferably, the diameter in described main steam header road is 50mm ~ 60mm, and the diameter of described steam secondary duct is 35mm ~ 40mm.
In above-mentioned maintenance structure, preferably, described operation platform at least comprises upper platform, middle level platform and lower floor's platform, and all there is laying in described main steam header road at upper platform, middle level platform and lower floor's platform, described electric heating equipment is arranged on middle level platform, and described electric tungsten lamp is arranged on lower floor's platform.
As a total technical conceive, the present invention also provides a kind of maintenance process of the parabola shaped post plate type hollow bridge pier pier shaft based on above-mentioned maintenance structure, described maintenance process adopts full parcel stream curing method and is assisted insulation in conjunction with electric heater and electric tungsten lamp, specifically comprise the following steps: first operation platform outer cover canvas is wrapped up entirely, operation platform installs maintenance of equipment, open steam raising plant, electricity heating equipment and electric tungsten lamp carry out stream curing to pier shaft, reach after requirement until pier shaft intensity and remove outer cover canvas, continue external mold platform and outer climbing frame that next joint pier shaft is installed, construct next joint pier shaft time, utilize the outer climbing frame of outer cover canvas and operation platform entirely to wrap up next joint pier shaft, outer cover canvas bottom freely hangs and to close on cushion cap, continues to pass into steam and saves pier shaft to next and carry out maintenance, so move in circles, until the pier construction maintenance of bridge completes.
Above-mentioned preferred maintenance process is when carrying out stream curing to pier shaft, judge to carry out next mould pier construction by consubstantiality health test block, adopt electric heater and electric tungsten lamp to continue to be incubated this section of pier shaft when constructing next mould pier shaft, and pass through the reasonable parcel of outer cover canvas, carry out steam-cured to this section of pier shaft when steam-cured next section of pier shaft simultaneously.
Compared with prior art, the invention has the advantages that: bridge pier shaft maintenance structure of the present invention has that structure simply, is easily built, the advantage such as easy to operate, maintenance process of the present invention is based on maintenance structure of the present invention, can the maintenance of effective implemention bridge pier shaft, and pier shaft stability can be made to be improved.Maintenance process of the present invention is effective, easy and simple to handle, safety is high, can solve bridge pier shaft Maintenance in Winter well and to construct the every technical problem faced, and be applicable to parabola shaped various special-shaped pier shaft, significant in bridge engineering practice.
Accompanying drawing explanation
Fig. 1 is the maintenance structural representation in the embodiment of the present invention, pier shaft bottom being carried out to maintenance.
Fig. 2 is the maintenance structural representation in the embodiment of the present invention, pier shaft top being carried out to maintenance.
Fig. 3 is the partial structurtes schematic diagram of pier shaft outside in the specific embodiment of the invention.
Fig. 4 is the partial structurtes schematic diagram of pier shaft inside in the specific embodiment of the invention.
Marginal data:
1, pier shaft; 2, operation platform; 21, outer climbing frame; 22, upper platform; 23, middle level platform; 24, lower floor's platform; 3, outer cover canvas; 4, electric heating equipment; 5, electric tungsten lamp; 6, main steam header road; 7, steam secondary duct; 8, tower crane; 9, pier shaft is outside; 10, pier shaft is inner.
Detailed description of the invention
Below in conjunction with Figure of description and concrete preferred embodiment, the invention will be further described, but protection domain not thereby limiting the invention.
embodiment:
A kind of maintenance structure of parabola shaped post plate type hollow bridge pier pier shaft as shown in Figure 1 to 4, this maintenance structure comprises the bridge pier pier shaft 1 treating maintenance, build the operation platform 2 on pier shaft 1, outer cover canvas 3 and maintenance of equipment, outer cover canvas 3 is wrapped up entirely by outer climbing frame 21 pairs of pier shafts 1 of operation platform 2, maintenance of equipment comprises steam raising plant, and (the present embodiment adopts steam heating boiler, steam heating boiler model is 1 ton), steam conveying pipe, electricity heating equipment 4(amounts to 12) and electric tungsten lamp 5(amount to 24), steam conveying pipe comprises main steam header road 6 and steam secondary duct 7, steam raising plant is connected to the operation platform 2 in outer cover canvas 3 by main steam header road 6, steam secondary duct 7 is arranged in around pier shaft 1, main steam header road 6 is communicated with steam secondary duct 7, electricity heating equipment 4 and electric tungsten lamp 5 layering are arranged on operation platform 2, and arrange near the outside of pier shaft 1.The outer cover canvas 3 bridge pier pier shaft 1 treating maintenance on a cushion cap that freely hangs is closed, and the area needed for outer cover canvas 3 amounts to about 4700m
2.Required 40 steel pipes are always about 1786m.
In the maintenance structure of above-mentioned the present embodiment, main steam header road 6 is picked out to tower crane 8 by steam raising plant, and is connected to operation platform 2 with the tower ladder of tower crane 8, and the length in main steam header road 6 is 120m.Steam secondary duct 7 is furnished with upper and lower two-layer around pier shaft 1, between main steam header road 6 with steam secondary duct 7 by arranging threeway, Big Diameter Rubber flexible pipe is connected, the Big Diameter Rubber hose length connecting main steam header road 6 to pier shaft 1 is about 30m altogether, connected by minor diameter rubber hose between steam secondary duct 7, the length of steam secondary duct 7 amounts to 200m, and the minor diameter rubber hose length connecting steam secondary duct 7 in pier shaft 1 is about 128m.In the present embodiment, the diameter in main steam header road 6 is 55mm(φ 55 steel pipe), the diameter of steam secondary duct 7 is 38mm(φ 38 steel pipe).
In the maintenance structure of above-mentioned the present embodiment, operation platform 2 comprises upper platform 22, middle level platform 23 and lower floor's platform 24, all there is laying in main steam header road 6 at upper platform 22, middle level platform 23 and lower floor's platform 24, electricity heating equipment 4 is arranged on middle level platform 23, and electric tungsten lamp 5 is arranged on lower floor's platform 24.
The present embodiment also provides a kind of maintenance process of the parabola shaped post plate type hollow bridge pier pier shaft based on above-mentioned maintenance structure, in the present embodiment, maintenance object is a kind of 1.6 parabola shaped Novel pole plate type hollow high pier pier shafts, its center pillar plate type hollow bridge pier height 105m, pier shaft is made up of four variable cross-section columns, column top 30m linearly, bottom 75m to all by 1.6 linear settings of parabola, establishes armored concrete slab to be coupled to each other formation rectangular thin walled structures at longitudinal and transverse bridge between column.The maintenance project of the present embodiment is constructed in the winter time, and this maintenance process adopts full parcel stream curing method and assisted insulation in conjunction with electric heater and electric tungsten lamp, specifically comprises the following steps:
First operation platform outer cover canvas is wrapped up entirely, operation platform installs maintenance of equipment, open steam raising plant, electric heating equipment and electric tungsten lamp and stream curing is carried out to pier shaft, reach after requirement until pier shaft intensity and remove the supports such as outer cover canvas 3 and steel pipe frame, continue external mold platform and outer climbing frame 21 that next joint pier shaft is installed; Construct next joint pier shaft time, utilize the outer climbing frame 21 of outer cover canvas 3 and operation platform 2 entirely to wrap up next joint pier shaft, outer cover canvas bottom freely hangs and to close on cushion cap, continues to pass into steam and saves pier shaft to next and carry out maintenance; So move in circles, until the pier construction maintenance of bridge completes.In the present embodiment, the Construction State of maintenance pier shaft 1 bottom as shown in Figure 1, and the Construction State on maintenance pier shaft 1 top as shown in Figure 2.
In above-mentioned maintenance process, when carrying out stream curing to pier shaft 1, judge to carry out next mould pier construction by consubstantiality health test block, electric heating equipment 4 and electric tungsten lamp 5 is adopted to continue to be incubated this section of pier shaft when constructing next mould pier shaft, and pass through the reasonable parcel of outer cover canvas 3, carry out steam-cured to this section of pier shaft when steam-cured next section of pier shaft simultaneously, more ensure concrete construction quality.
Claims (7)
1. the maintenance structure of a parabola shaped post plate type hollow bridge pier pier shaft, described maintenance structure comprises the bridge pier pier shaft treating maintenance, build the operation platform on pier shaft, outer cover canvas and maintenance of equipment, it is characterized in that: described outer cover canvas is wrapped up pier shaft entirely by the outer climbing frame of operation platform, described maintenance of equipment comprises steam raising plant, steam conveying pipe, electric heater and iodine-tungsten lamp, described steam conveying pipe comprises main steam header road and steam secondary duct, steam raising plant is connected to the operation platform in outer cover canvas by main steam header road, steam secondary duct is arranged in around pier shaft, main steam header road is communicated with steam secondary duct, described electric heater and iodine-tungsten lamp layering are arranged on operation platform, and arrange near the outside of pier shaft, described main steam header road is picked out to tower crane by steam raising plant, and is connected to described operation platform with the tower ladder of tower crane.
2. maintenance structure according to claim 1, is characterized in that: the described outer cover canvas bridge pier pier shaft treating maintenance on a cushion cap that freely hangs is closed.
3. maintenance structure according to claim 1 and 2, it is characterized in that: described steam secondary duct is furnished with two-layer at least up and down around pier shaft, described main steam header road is connected by Big Diameter Rubber flexible pipe with between steam secondary duct, is connected between described steam secondary duct by minor diameter rubber hose.
4. maintenance structure according to claim 3, is characterized in that: the diameter in described main steam header road is 50mm ~ 60mm, and the diameter of described steam secondary duct is 35mm ~ 40mm.
5. maintenance structure according to claim 1 and 2, it is characterized in that: described operation platform at least comprises upper platform, middle level platform and lower floor's platform, all there is laying in described main steam header road at upper platform, middle level platform and lower floor's platform, described electric heater is arranged on middle level platform, and described iodine-tungsten lamp is arranged on lower floor's platform.
6. the maintenance process based on the parabola shaped post plate type hollow bridge pier pier shaft of maintenance structure according to any one of Claims 1 to 5, described maintenance process adopts full parcel stream curing method and is assisted insulation in conjunction with electric heater and iodine-tungsten lamp, specifically comprise the following steps: first operation platform outer cover canvas is wrapped up entirely, operation platform installs maintenance of equipment, open steam raising plant, electric heater and iodine-tungsten lamp carry out stream curing to pier shaft, reach after requirement until pier shaft intensity and remove outer cover canvas, continue external mold platform and outer climbing frame that next joint pier shaft is installed, construct next joint pier shaft time, utilize the outer climbing frame of outer cover canvas and operation platform entirely to wrap up next joint pier shaft, outer cover canvas bottom freely hangs and to close on cushion cap, continues to pass into steam and saves pier shaft to next and carry out maintenance, so move in circles, until the pier construction maintenance of bridge completes.
7. maintenance process according to claim 6, it is characterized in that: when carrying out stream curing to pier shaft, judge to carry out next mould pier construction by consubstantiality health test block, adopt electric heater and iodine-tungsten lamp to continue to be incubated this section of pier shaft when constructing next mould pier shaft, and pass through the reasonable parcel of outer cover canvas, carry out steam-cured to this section of pier shaft when steam-cured next section of pier shaft simultaneously.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310382494.XA CN103510471B (en) | 2013-08-29 | 2013-08-29 | The maintenance structure of parabola shaped post plate type hollow bridge pier pier shaft and maintenance process |
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| CN201310382494.XA CN103510471B (en) | 2013-08-29 | 2013-08-29 | The maintenance structure of parabola shaped post plate type hollow bridge pier pier shaft and maintenance process |
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| CN103510471B true CN103510471B (en) | 2015-11-25 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625189B (en) * | 2016-01-25 | 2020-05-15 | 赵立财 | Hollow high pier concrete placement heat preservation maintenance system |
| CN106522106B (en) * | 2016-12-22 | 2019-04-09 | 中交路桥华南工程有限公司 | High tower steam curing system |
| CN106945158A (en) * | 2017-03-09 | 2017-07-14 | 蒋春阳 | A kind of concrete prefabricated element automatic maintenance device |
| CN109676775A (en) * | 2019-01-31 | 2019-04-26 | 中交二航局第四工程有限公司 | A kind of double seal formula prefabricated box -beam maintenance canopy |
| CN112575682A (en) * | 2020-11-25 | 2021-03-30 | 中建八局第二建设有限公司 | Pier shaft maintenance device that is under construction winter |
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| KR20050082024A (en) * | 2004-02-17 | 2005-08-22 | (주)다산컨설턴트 | Heating panel of bridge for winter work |
| CN202037707U (en) * | 2011-03-30 | 2011-11-16 | 中铁一局集团有限公司 | Steam curing shed for construction of bridge girders |
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| CN202293015U (en) * | 2011-11-09 | 2012-07-04 | 中铁二十二局集团有限公司 | Steam curing cover of box girder |
| CN103225268A (en) * | 2013-05-11 | 2013-07-31 | 中建六局土木工程有限公司 | Winter construction method of bridge pier stud in extremely cold region |
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2013
- 2013-08-29 CN CN201310382494.XA patent/CN103510471B/en not_active Expired - Fee Related
Patent Citations (5)
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| KR20050082024A (en) * | 2004-02-17 | 2005-08-22 | (주)다산컨설턴트 | Heating panel of bridge for winter work |
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| CN202293015U (en) * | 2011-11-09 | 2012-07-04 | 中铁二十二局集团有限公司 | Steam curing cover of box girder |
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