CN106192781A - The method for dismounting of prestressing force list case three Room plate-girder - Google Patents
The method for dismounting of prestressing force list case three Room plate-girder Download PDFInfo
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- CN106192781A CN106192781A CN201610576788.XA CN201610576788A CN106192781A CN 106192781 A CN106192781 A CN 106192781A CN 201610576788 A CN201610576788 A CN 201610576788A CN 106192781 A CN106192781 A CN 106192781A
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- plate
- girder
- room
- falsework
- dismounting
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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
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses the method for dismounting of a kind of prestressing force list case three Room plate-girder, comprise the following steps: S1: set up falsework: utilize bridge pier as setting up basis, set up falsework along bridge pier sidepiece, make single case three Room plate-girder end bearing on falsework；S2: longitudinally point bar: the thinnest position along single case three Room plate-girder intermediate box ceiling base plate carries out longitudinally cutting, makes single case three Room plate-girder be divided into bar along center line；S3: transversal sectional: single case three Room plate-girder is carried out transverse cuts along the position between pier top and falsework, makes single case three Room plate-girder section of being divided into；S4: hang: utilize hanging device to be hung successively by the plate beam element cutting formation in length and breadth；S5: dismounting falsework: after plate beam element has hung, falsework is dismantled.The method has advantage easy to operate, that can improve working security and efficiency of construction.
Description
Technical field
Bridge structure demolition technique as the invention mainly relates to, particularly relates to the dismounting of a kind of prestressing force list case three Room plate-girder
Method.
Background technology
General bridge structural demolition has used for reference the method for dismounting of building mostly, as blasting procedure, directly abolish method, machinery hangs
Tear method etc. open；But also certain methods is then the method according to bridge special circumstances just for bridging toughening, as straddle truck remove,
Pushing tow dismounting, pontoon bridge dismounting etc..Current bridging toughening method is sorted out, demolition blasting method and machinery (non-explosion) can be divided into
Two big classifications of dismounting method, each classification contains again multiple different method for dismounting, all has the respective scope of application.Machinery
The forms such as dismounting method refers to utilize plant equipment to crush bridge, splits, handling are removed.Conventional mechanical removal method
Need to set up support and protection network, by broken on the spot for bridge structure or handling appointed place.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, it is provided that a kind of easy to operate, can improve and execute
The method for dismounting of the prestressing force list case three Room plate-girder of work safety and efficiency of construction.
For solve above-mentioned technical problem, the present invention by the following technical solutions:
The method for dismounting of a kind of prestressing force list case three Room plate-girder, comprises the following steps:
S1: set up falsework: utilize bridge pier as setting up basis, set up falsework along bridge pier sidepiece, makes single case three Room plate
Beam end is carried on falsework；
S2: longitudinally point bar: the thinnest position along single case three Room plate-girder intermediate box ceiling base plate carries out longitudinally cutting, makes single case three Room
Plate-girder is divided into bar along center line；
S3: transversal sectional: single case three Room plate-girder is carried out transverse cuts along the position between pier top and falsework, makes single case three
The room plate-girder section of being divided into；
S4: hang: utilize hanging device to be hung successively by the plate beam element cutting formation in length and breadth；
S5: dismounting falsework: after plate beam element has hung, falsework is dismantled.
Further improvement as technique scheme:
In step sl, the width distribution beam more than single case three Room plate-girder is set at falsework top.
Whether gap at the bottom of the beam of checklist case three Room plate-girder, destroies real gap with rubber blanket.
Before carrying out step S2 and S3, first the wing plate of single case three Room plate-girder sidepiece is carried out excision and hang.
In step s 5, after all plate beam elements have hung, falsework is dismantled.
In step s 5, wait hang station with when having hung station at a distance of a plate beam element, to hanging station
Falsework is dismantled.
Rope saw is used to cut.
Compared with prior art, it is an advantage of the current invention that:
The method for dismounting of the prestressing force list case three Room plate-girder of the present invention, uses the method, and falsework plays the single case of interim carrying
Three Room plate beam actions, by prestressing force list case three Room plate-girder the most longitudinally point bar, rear transversal sectional, form multistage plate beam element freely-supported
On the falsework that pier is other, finally use the lifting of large-tonnage loop wheel machine to remove, partial cutoff presstressed reinforcing steel, avoid global solution to remove beam
Body prestress system, improves the safety of construction；Single case three Room plate-girder longitudinally point bar, the semiclosed dismounting of transversal sectional, its
Easy construction, efficiency height.
Accompanying drawing explanation
Fig. 1 is the flow chart of the method for dismounting of prestressing force list case three Room of the present invention plate-girder.
Fig. 2 is the front view of prestressing force list case three Room plate-girder.
Fig. 3 is the top view of prestressing force list case three Room plate-girder.
Fig. 4 is the side view of prestressing force list case three Room plate-girder.
In figure, each label represents.
Detailed description of the invention
Below with reference to Figure of description and specific embodiment, the present invention is described in further details.
As it is shown in figure 1, the flow chart of the method for dismounting of prestressing force list case three Room of the present invention plate-girder, it comprises the following steps:
S1: set up falsework: utilize bridge pier as setting up basis, set up falsework along bridge pier sidepiece, makes single case three Room plate
Beam end is carried on falsework；
S2: longitudinally point bar: the thinnest position along single case three Room plate-girder intermediate box ceiling base plate carries out longitudinally cutting, makes single case three Room
Plate-girder is divided into bar along center line；
S3: transversal sectional: single case three Room plate-girder is carried out transverse cuts along the position between pier top and falsework, makes single case three
The room plate-girder section of being divided into；
S4: hang: utilize hanging device to be hung successively by the plate beam element cutting formation in length and breadth；
S5: dismounting falsework: after plate beam element has hung, falsework is dismantled.
Using the method, falsework plays the single case three Room plate beam action of interim carrying, by prestressing force list case three Room plate
Beam the most longitudinally point bar, rear transversal sectional, formation multistage plate beam element freely-supported, on the falsework that pier is other, finally uses large-tonnage
Loop wheel machine lifting is removed, and partial cutoff presstressed reinforcing steel, avoids global solution to remove beam body prestress system, improves the safety of construction；
Single case three Room plate-girder longitudinally point bar, the semiclosed dismounting of transversal sectional, its easy construction, efficiency height.
As shown in Figures 2 to 4, the specific embodiment of the method for dismounting of prestressing force list case three Room of the present invention plate-girder, Xian Yanqiao
Pier 1 sidepiece sets up falsework 2, makes single case three Room plate-girder 3 end bearing on falsework 2；Again along single case three Room plate-girder 3
Between the thinnest position of chamber roof and floor carry out longitudinally cutting, make single case three Room plate-girder 3 be divided into bar along center line；Then along pier top and
Position between falsework 2 carries out transverse cuts to single case three Room plate-girder 3, makes single case three Room plate-girder 3 section of being divided into；Recycling
The plate beam element cutting formation in length and breadth is hung by hanging device successively；Finally after plate beam element has hung, to temporarily
Support 2 is dismantled.
In the present embodiment, in step sl, the width distribution more than single case three Room plate-girder 3 is set at falsework 2 top
Beam 21, is so arranged so that what the plate beam element formed after cutting in length and breadth can consolidate is carried in distribution beam 21, will not fall
Fall, further increase the safety of construction.
In the present embodiment, whether gap at the bottom of the beam of checklist case three Room plate-girder 3, destroy real gap with rubber blanket, so arrange
Can guarantee that the smooth of single case three Room plate-girder 3, the stability of cutting can be improved.
In the present embodiment, before carrying out step S2 and S3, first the wing plate 31 of single case three Room plate-girder 3 sidepiece is excised
Hang, so arrange, can guarantee that plate beam element main body is the whole cuboid of a slip gauge, it is simple to stress when plate beam element hangs,
Make the process that hangs more steadily reliable.
In the present embodiment, use rope saw to cut, use rope saw cut convenient and reliable.
In the present embodiment, in step s 5, after all plate beam elements have hung, falsework 2 is dismantled, this
Sample operates, and on the one hand can improve the safety of construction, on the other hand can reduce the staffing of job site.
In other embodiments, in step s 5, wait hang station with when having hung station at a distance of a plate beam element,
The falsework 2 hanging station is dismantled, so operates, substantially can realize hanging work and the same stepping of dismantlement work
OK, efficiency of construction can be improved.
Although the present invention discloses as above with preferred embodiment, but is not limited to the present invention.Any it is familiar with ability
The technical staff in territory, in the case of without departing from technical solution of the present invention scope, may utilize the technology contents pair of the disclosure above
Technical solution of the present invention makes many possible variations and modification, or is revised as the Equivalent embodiments of equivalent variations.Therefore, every
Without departing from the content of technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments,
Equivalent variations and modification, all should fall in the range of technical solution of the present invention is protected.
Claims (7)
1. the method for dismounting of a prestressing force list case three Room plate-girder, it is characterised in that: comprise the following steps:
S1: set up falsework: utilize bridge pier as setting up basis, set up falsework along bridge pier sidepiece, makes single case three Room plate
Beam end is carried on falsework；
S2: longitudinally point bar: the thinnest position along single case three Room plate-girder intermediate box ceiling base plate carries out longitudinally cutting, makes single case three Room
Plate-girder is divided into bar along center line；
S3: transversal sectional: single case three Room plate-girder is carried out transverse cuts along the position between pier top and falsework, makes single case three
The room plate-girder section of being divided into；
S4: hang: utilize hanging device to be hung successively by the plate beam element cutting formation in length and breadth；
S5: dismounting falsework: after plate beam element has hung, falsework is dismantled.
The method for dismounting of prestressing force list case three Room the most according to claim 1 plate-girder, it is characterised in that: in step sl,
The width distribution beam more than single case three Room plate-girder is set at falsework top.
The method for dismounting of prestressing force list case three Room the most according to claim 2 plate-girder, it is characterised in that: checklist case three Room
Whether gap at the bottom of the beam of plate-girder, destroies real gap with rubber blanket.
The method for dismounting of prestressing force list case three Room the most according to claim 3 plate-girder, it is characterised in that: carrying out step S2
Before S3, first the wing plate of single case three Room plate-girder sidepiece is carried out excision and hang.
The method for dismounting of prestressing force list case three Room the most according to claim 4 plate-girder, it is characterised in that: in step s 5,
After all plate beam elements have hung, falsework is dismantled.
The method for dismounting of prestressing force list case three Room the most according to claim 4 plate-girder, it is characterised in that: in step s 5,
Wait hanging station with when hanging a station plate beam element apart, the falsework hanging station is dismantled.
The method for dismounting of prestressing force list case three Room the most according to any one of claim 1 to 6 plate-girder, it is characterised in that:
Rope saw is used to cut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610576788.XA CN106192781A (en) | 2016-07-21 | 2016-07-21 | The method for dismounting of prestressing force list case three Room plate-girder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610576788.XA CN106192781A (en) | 2016-07-21 | 2016-07-21 | The method for dismounting of prestressing force list case three Room plate-girder |
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| CN106192781A true CN106192781A (en) | 2016-12-07 |
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| CN201610576788.XA Pending CN106192781A (en) | 2016-07-21 | 2016-07-21 | The method for dismounting of prestressing force list case three Room plate-girder |
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Cited By (7)
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|---|---|---|---|---|
| CN108589564A (en) * | 2018-04-17 | 2018-09-28 | 成都西南交大研究院有限公司 | A kind of bridge static state cutting whole into sections method for dismounting based on non-explosion |
| CN108824842A (en) * | 2018-05-29 | 2018-11-16 | 五冶集团上海有限公司 | A kind of desulfurizing tower method for dismounting |
| CN109056557A (en) * | 2018-08-17 | 2018-12-21 | 中铁五局集团有限公司 | A kind of existing method for bridge construction of decomposition dismounting |
| CN111172902A (en) * | 2020-01-09 | 2020-05-19 | 南京林业大学 | Construction method for quickly dismantling box girder bridge without support |
| CN111560864A (en) * | 2020-01-17 | 2020-08-21 | 广东冠粤路桥有限公司 | Method for dismantling old bridge |
| CN114263129A (en) * | 2021-12-31 | 2022-04-01 | 宁波市政工程建设集团股份有限公司 | Dismantling construction method for bridge superstructure |
| CN114541286A (en) * | 2021-12-31 | 2022-05-27 | 宁波市政工程建设集团股份有限公司 | Segmented block dismantling construction method for cast-in-situ prestressed box girder |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108589564A (en) * | 2018-04-17 | 2018-09-28 | 成都西南交大研究院有限公司 | A kind of bridge static state cutting whole into sections method for dismounting based on non-explosion |
| CN108824842A (en) * | 2018-05-29 | 2018-11-16 | 五冶集团上海有限公司 | A kind of desulfurizing tower method for dismounting |
| CN109056557A (en) * | 2018-08-17 | 2018-12-21 | 中铁五局集团有限公司 | A kind of existing method for bridge construction of decomposition dismounting |
| CN111172902A (en) * | 2020-01-09 | 2020-05-19 | 南京林业大学 | Construction method for quickly dismantling box girder bridge without support |
| CN111560864A (en) * | 2020-01-17 | 2020-08-21 | 广东冠粤路桥有限公司 | Method for dismantling old bridge |
| CN114263129A (en) * | 2021-12-31 | 2022-04-01 | 宁波市政工程建设集团股份有限公司 | Dismantling construction method for bridge superstructure |
| CN114541286A (en) * | 2021-12-31 | 2022-05-27 | 宁波市政工程建设集团股份有限公司 | Segmented block dismantling construction method for cast-in-situ prestressed box girder |
| CN114541286B (en) * | 2021-12-31 | 2023-09-05 | 宁波市政工程建设集团股份有限公司 | Sectional block dismantling construction method for cast-in-situ prestressed box girder |
| CN114263129B (en) * | 2021-12-31 | 2023-09-05 | 宁波市政工程建设集团股份有限公司 | Bridge superstructure dismantling construction method |
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Application publication date: 20161207 |
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