CN102561193A - Construction technology of closure section for rotary continuous beam for overpass electrified railway and hanging basket thereof - Google Patents
Construction technology of closure section for rotary continuous beam for overpass electrified railway and hanging basket thereof Download PDFInfo
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- CN102561193A CN102561193A CN2011104377840A CN201110437784A CN102561193A CN 102561193 A CN102561193 A CN 102561193A CN 2011104377840 A CN2011104377840 A CN 2011104377840A CN 201110437784 A CN201110437784 A CN 201110437784A CN 102561193 A CN102561193 A CN 102561193A
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Abstract
The invention discloses a construction technology of a closure section for a rotary continuous beam for an overpass electrified railway and a hanging basket thereof. The construction technology comprises the steps as follows: the hanging basket is designed; a place of a T-shaped structure on one side is selected for assembling a suspension bracket outside an existing railway; a protection bottom plate is laid under a template, and dense screens on both sides are hung on the outer sides of a scaffold; assembling reinforcement and casting closure are carried out; when the template is dismantled, the template is released firstly, an anchoring system of a main pier is cut off, a connecting system positioned outside a wing plate is still kept at the moment, finish rolling deformed steel bars are lengthened on the top surface of the beam to penetrate through the variable cross-section of a beam body so as to lead the template to retreat to the other side, and then the template is dismantled; in addition, a dynamic system adopts bar reinforcement rings that are pre-buried in the beam body, and the template can move through a chain block. Through the adoption of the movable hanging basket, the construction technology for the hanging basket is simplified, the construction security risk of the existing railway is reduced, skylight point construction above the existing railway is more flexible, and the construction period of the closure section is shortened.
Description
Technical field
The present invention relates to a kind of electric railway turn continuous beam closure segment construction technology and Hanging Basket thereof of striding.
Background technology
Turn in the Construction of continuous beam generally striding electric railway; Closure segment adopts cradle construction more; Hanging Basket carries out assembly unit at closure segment, and often there are many drawbacks in this job practices: 1, Hanging Basket assembly unit, all operations above existing line of dismounting, and the activity duration is longer; Need railway " skylight " the some operation of application long period, construction receives " skylight " some time restriction; 2, the existing line engineering time long, security risk is big; 3, Hanging Basket assembly unit, dismounting are limited by the existing line construction plant, and type selectings such as plant equipment are difficulty, and construction cost is big; 4, Hanging Basket needs after the completion of turning, just can carry out assembly unit, has increased construction period.
Summary of the invention
Its purpose of the present invention just is to provide a kind of electric railway turn continuous beam closure segment construction technology and suspension bracket thereof of striding; Through taking removable suspension bracket; Simplify the suspension bracket construction technology; Reduce the existing line construction safety risk, make existing line top " skylight " some construction more flexible, reduce the closure segment construction period.
The technical scheme that realizes above-mentioned purpose and take comprises step
(1) design Hanging Basket;
(2) be positioned at existing line outside chosen position assembly unit suspension bracket at a side T structure;
(3) the protection base plate is laid in the template below, scaffold outside suspension bilateral Dense mesh screen;
(4) assembling reinforcement, cast is closed up;
(5) dismounting of template; Unclamp template earlier, cut off the anchoring system of main pier, still keep the linked system in the wing plate outside this moment; Through passing through beam body variable cross-section at top surface of the beam lengthening fining twisted steel; Remove after making template retreat to opposite side, dynamical system is employed in embedded bar ring on the beam body, through the jack moving die plate.
Stride the turn Hanging Basket of continuous beam closure segment construction technology of electric railway, comprise collet, said collet is arranged on the continuous beam bottom; Said collet connects all-insulated plate through suspension rod; Said continuous beam top is provided with top board, connects collet through indented bars, and both sides, said collet upper end are provided with Dense mesh screen.
Compared with prior art the present invention has the following advantages.
This invention is with traditional closure segment cradle construction technology; Through taking removable suspension bracket; With the assembly unit of suspension bracket and remove and be transferred to existing line by the existing line top and carry out outward, shortened suspension bracket on existing line with regard to bit time, shortened " skylight " some time simultaneously; The application of " skylight " point is more prone to, reduces of the influence of " skylight " point construction; Suspension bracket carries out assembly unit, dismounting outside existing line, greatly reduce the existing line construction risk; Suspension bracket receives site influence less away from existing line, and type selectings such as plant equipment are more flexible; But suspension bracket is made most of circulation material that adopts, and can make the material recycling, practices thrift construction cost; Suspension bracket can be accomplished assembly unit before turning, practiced thrift the engineering time.
Description of drawings
Below in conjunction with accompanying drawing the present invention is made further detailed description.
Fig. 1 is the Hanging Basket mounting structure sketch map among the present invention.
Fig. 2 is Fig. 1 right view.
The specific embodiment
The present invention includes following processing step:
(1) design Hanging Basket;
(2) be positioned at existing line outside chosen position assembly unit Hanging Basket at a side T structure;
(3) the protection base plate is laid in the template below, scaffold outside suspension bilateral Dense mesh screen;
(4) assembling reinforcement, cast is closed up;
(5) dismounting of template; Unclamp template earlier, cut off the anchoring system of main pier, still keep the linked system in the wing plate outside this moment; Through passing through beam body variable cross-section at top surface of the beam lengthening fining twisted steel; Remove after making template retreat to opposite side, dynamical system is employed in embedded bar ring on the beam body, through the jack moving die plate.
Said Hanging Basket comprises collet 3, like Fig. 1, shown in 2; Said collet 3 is arranged on continuous beam 4 bottoms, and said collet 3 connects all-insulated plate 1 through suspension rod 2, and said continuous beam 4 tops are provided with top board 7; Connect collet 3 through indented bars 8, both sides, said collet 3 upper end are provided with Dense mesh screen 6.
Both sides, said collet 3 upper end are provided with jacking 5.
Embodiment
The process of this invention comprises the steps:
(1) according to closure segment Cross section Design suspension bracket size, blue bearing capacity is hung in checking computations, requires to select for use the material of different model according to different bearer power;
(2) be positioned at the chosen position assembly unit of the existing line outside at a side T structure and hang indigo plant, hang blue template suspension linked system and adopt Φ 25 fining twisted steels;
(3) bottom of the protection system under the template is for completely spreading the 5mm steel plate, and scaffold outside suspension bilateral Dense mesh screen guarantees in the construction that the suspension of Dense mesh screen is firm;
Need " skylight " point to block power cut construction when (4) pouring into a mould closure segment, assembling reinforcement is constructed in template, does not need " skylight " point;
Seam required closely knitly when (5) template was installed, and avoided the traffic safety of existing line is formed influence;
(6) template when mounted the protection system under bed die system and the bed die require firm welding between the shaped steel, avoid when turning template to install in advance existing line formed security incident;
(7) billet behind the 2cm at the jack of the adjustment system of template through the beam face and each position and nut realization;
(8) shaped steel in the template system has the position of conflicting with finish rolling deformed bar, and the accurate position that shaped steel guarantees finish rolling deformed bar is moved in construction;
(9) bed die [10 distribution beam, spacing is 30cm, vertically distribution beam I32a under web the spacing 30cm, all the other spacing 60cm, the bracing frame employing steel pipe scaffold wing plate under.
(10) dismounting of template; Unclamp template earlier, cut off the anchoring system of main pier, still keep the linked system in the wing plate outside this moment; Through passing through beam body variable cross-section at top surface of the beam lengthening fining twisted steel; Remove after making template retreat to opposite side, dynamical system is employed in embedded bar ring on the beam body, through the jack moving die plate; In the template moving process, can in position remove in advance and hang blue all-insulated plate down, can when the dismounting extension is blue, remove when having ready conditions.
Claims (3)
1. stride the electric railway continuous beam closure segment construction technology of turning for one kind, it is characterized in that, comprise step
(1) design Hanging Basket;
(2) be positioned at existing line outside chosen position assembly unit Hanging Basket at a side T structure;
(3) the protection base plate is laid in the template below, scaffold outside suspension bilateral Dense mesh screen;
(4) assembling reinforcement, cast is closed up;
(5) dismounting of template; Unclamp template earlier, cut off the anchoring system of main pier, still keep the linked system in the wing plate outside this moment; Through passing through beam body variable cross-section at top surface of the beam lengthening fining twisted steel; Remove after making template retreat to opposite side, dynamical system is employed in embedded bar ring on the beam body, through the jack moving die plate.
2. described a kind of the turn Hanging Basket of continuous beam closure segment construction technology of electric railway of striding of root a tree name claim 1; Comprise collet (3), it is characterized in that said collet (3) is arranged on continuous beam (4) bottom; Said collet (3) connects all-insulated plate (1) through suspension rod (2); Said continuous beam (4) top is provided with top board (7), connects collet (3) through indented bars (8), and both sides, said collet (3) upper end are provided with Dense mesh screen (6).
3. described a kind of the turn Hanging Basket of continuous beam closure segment construction technology of electric railway of striding of root a tree name claim 2 is characterized in that both sides, said collet (3) upper end are provided with jacking (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104377840A CN102561193A (en) | 2011-12-23 | 2011-12-23 | Construction technology of closure section for rotary continuous beam for overpass electrified railway and hanging basket thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104377840A CN102561193A (en) | 2011-12-23 | 2011-12-23 | Construction technology of closure section for rotary continuous beam for overpass electrified railway and hanging basket thereof |
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| CN102561193A true CN102561193A (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011104377840A Pending CN102561193A (en) | 2011-12-23 | 2011-12-23 | Construction technology of closure section for rotary continuous beam for overpass electrified railway and hanging basket thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074145A (en) * | 2014-06-30 | 2014-10-01 | 广东省基础工程公司 | Closure-section refit construction method for hanging basket |
| CN107724252A (en) * | 2017-09-15 | 2018-02-23 | 浙江申诚环境工程有限公司 | Continuous box girder hanging basket cantilever method construction and close up block |
| CN107761574A (en) * | 2017-09-29 | 2018-03-06 | 中铁九局集团有限公司 | A kind of across electric railway Business Line swivel flute profile continuous beam mid-span closing device |
| CN109629451A (en) * | 2019-01-30 | 2019-04-16 | 中铁七局集团郑州工程有限公司 | Across the multiply closed hanging basket cantilever method construction of road electric railway continuous bridge |
| CN110685227A (en) * | 2019-11-02 | 2020-01-14 | 中铁七局集团有限公司 | Construction method of formwork support system of obstacle-crossing wide-width swivel bridge closure segment hanging bracket method |
| CN110965477A (en) * | 2019-12-19 | 2020-04-07 | 德州市公路工程总公司 | Construction method for shaped easy-to-detach hanging bracket of mid-span closure section of suspension casting box beam |
| CN111485500A (en) * | 2020-05-28 | 2020-08-04 | 中铁（贵州）市政工程有限公司 | Transverse lengthening reinforcing construction method and structure for retreating and dismantling of rhombic hanging basket |
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| FR2751685A1 (en) * | 1996-07-24 | 1998-01-30 | Mills | Frame for scraping bridge construction |
| JP2008031768A (en) * | 2006-07-31 | 2008-02-14 | Ps Mitsubishi Construction Co Ltd | Cantilever overhanging erection method for corrugated steel plate web box girder bridge |
| CN201071487Y (en) * | 2007-07-13 | 2008-06-11 | 中铁十七局集团第二工程有限公司 | Suspension basket safety protection system device in bridge construction |
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| CN201560399U (en) * | 2009-07-10 | 2010-08-25 | 师长宏 | Anti-electric shock, waterproof and anti-fall device of hanging basket for construction of overpass crossing over electrified railways |
| CN101929130A (en) * | 2010-09-19 | 2010-12-29 | 中铁十二局集团有限公司 | Hanging basket device for closure construction of continuous box girders |
| CN201801820U (en) * | 2010-09-30 | 2011-04-20 | 中铁三局集团有限公司 | Safety-protecting externally-hung device of falling object-resistant hanging basket |
| CN202007383U (en) * | 2011-01-19 | 2011-10-12 | 中铁二十局集团第四工程有限公司 | High-voltage insulating suspension basket |
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2011
- 2011-12-23 CN CN2011104377840A patent/CN102561193A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR2751685A1 (en) * | 1996-07-24 | 1998-01-30 | Mills | Frame for scraping bridge construction |
| JP2008031768A (en) * | 2006-07-31 | 2008-02-14 | Ps Mitsubishi Construction Co Ltd | Cantilever overhanging erection method for corrugated steel plate web box girder bridge |
| CN201071487Y (en) * | 2007-07-13 | 2008-06-11 | 中铁十七局集团第二工程有限公司 | Suspension basket safety protection system device in bridge construction |
| CN101725111A (en) * | 2008-10-22 | 2010-06-09 | 中铁大桥局集团第一工程有限公司 | Totally enclosed cradle and construction method for suspending cast of concrete by using same |
| CN201560399U (en) * | 2009-07-10 | 2010-08-25 | 师长宏 | Anti-electric shock, waterproof and anti-fall device of hanging basket for construction of overpass crossing over electrified railways |
| CN101929130A (en) * | 2010-09-19 | 2010-12-29 | 中铁十二局集团有限公司 | Hanging basket device for closure construction of continuous box girders |
| CN201801820U (en) * | 2010-09-30 | 2011-04-20 | 中铁三局集团有限公司 | Safety-protecting externally-hung device of falling object-resistant hanging basket |
| CN202007383U (en) * | 2011-01-19 | 2011-10-12 | 中铁二十局集团第四工程有限公司 | High-voltage insulating suspension basket |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074145A (en) * | 2014-06-30 | 2014-10-01 | 广东省基础工程公司 | Closure-section refit construction method for hanging basket |
| CN107724252A (en) * | 2017-09-15 | 2018-02-23 | 浙江申诚环境工程有限公司 | Continuous box girder hanging basket cantilever method construction and close up block |
| CN107761574A (en) * | 2017-09-29 | 2018-03-06 | 中铁九局集团有限公司 | A kind of across electric railway Business Line swivel flute profile continuous beam mid-span closing device |
| CN107761574B (en) * | 2017-09-29 | 2021-02-12 | 中铁九局集团有限公司 | Midspan folding device for swivel groove-shaped continuous beam of service line of electrified railway |
| CN109629451A (en) * | 2019-01-30 | 2019-04-16 | 中铁七局集团郑州工程有限公司 | Across the multiply closed hanging basket cantilever method construction of road electric railway continuous bridge |
| CN110685227A (en) * | 2019-11-02 | 2020-01-14 | 中铁七局集团有限公司 | Construction method of formwork support system of obstacle-crossing wide-width swivel bridge closure segment hanging bracket method |
| CN110685227B (en) * | 2019-11-02 | 2021-11-02 | 中铁七局集团有限公司 | Construction method of formwork support system of obstacle-crossing wide-width swivel bridge closure segment hanging bracket method |
| CN110965477A (en) * | 2019-12-19 | 2020-04-07 | 德州市公路工程总公司 | Construction method for shaped easy-to-detach hanging bracket of mid-span closure section of suspension casting box beam |
| CN111485500A (en) * | 2020-05-28 | 2020-08-04 | 中铁（贵州）市政工程有限公司 | Transverse lengthening reinforcing construction method and structure for retreating and dismantling of rhombic hanging basket |
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Application publication date: 20120711 |