CN107254849A - Steel box-girder installation method under a kind of clear height constrained state - Google Patents
Steel box-girder installation method under a kind of clear height constrained state Download PDFInfo
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- CN107254849A CN107254849A CN201710573869.9A CN201710573869A CN107254849A CN 107254849 A CN107254849 A CN 107254849A CN 201710573869 A CN201710573869 A CN 201710573869A CN 107254849 A CN107254849 A CN 107254849A
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- girder
- steel box
- track
- installation method
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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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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention relates to steel box-girder installation method under a kind of clear height constrained state, comprise the following steps：S1：Column is installed under bridge, support system, track girder and track are set in the both sides of column, at least one end of track is located at outside bridge, and sliding trolley is set on track；S2：By first steel box-girder by being fixed on crane lifting to sliding trolley temporarily, sliding trolley is slid onto precalculated position with draw-gear；S3：By first positioning of steel box girder it is good after fixed with interim gate type support, sliding trolley is moved at untethered space, carry out second steel box-girder sliding construction, be repeatedly performed the sliding construction of follow-up steel box-girder；S4：After whole steel box-girders are installed, steel box-girder splicing is carried out, and steel box-girder is connected with column.The present invention ensure that normal traffic while construction, and loop wheel machine supporting leg operation is fixed on same place position during construction, has saved repeatedly supporting leg, has received the time of leg, saved cost, has improved efficiency of construction.
Description
Technical field
The present invention relates to steel box-girder installing area, installed more specifically to steel box-girder under a kind of clear height constrained state
Method.
Background technology
Certain city H ring roads and transition widening and improving are using the form for helping wide steel box-girder, to avoid the subway that underground is built
Tunnel, the wide steel box-girder envisaged underneath of side is steel box-girder gate-type bridge pier.Away from existing overhead pars basilaris pontis only 0.5 at the top of steel box-girder transom pier
Rice, conventional lifting mode is only capable of installing the steel column of both sides, and can not install the gooseneck above steel column.
Construction in the past to such steel box-girder is main using slip mode, vertical jacking or the level of setting up full hall scaffold
The mode of pushing tow is carried out, full hall scaffold sliding, vertical jacking form of construction work except need to set up complexity support system in addition to, also not
It can guarantee that the normally travel of vehicle under construction view field；In the case of the mode of horizontal pushing tow such as actual no-backs structures
Also it can not implement.
In summary, although existing construction method disclosure satisfy that construction, but substantial amounts of artificial, goods and materials and preciousness need to be expended
Engineering time, and working procedure is cumbersome, potential safety hazard is more.
The content of the invention
The technical problem to be solved in the present invention is to be limited there is provided a kind of easily operated, simple, efficiency high of constructing clear height
Steel box-girder installation method under state.
The technical solution adopted for the present invention to solve the technical problems is：Steel box-girder under a kind of clear height constrained state is constructed to pacify
Dress method, comprises the following steps：
S1：Column is installed under bridge, support system, track girder and track are set in the both sides of column, column is used for branch
Steel box-girder is supportted, track girder is fixed on above support system, and track is located on track girder, at least one end of track is located at outside bridge,
Sliding trolley is set on track；
S2：By first steel box-girder by being fixed on crane lifting to sliding trolley temporarily, it will be slid with draw-gear small
Car is slid onto precalculated position；
S3：By first positioning of steel box girder it is good after fixed with interim gate type support, it is empty that sliding trolley is moved into untethered
Between locate, carry out second steel box-girder sliding construction, be repeatedly performed the sliding construction of follow-up steel box-girder；
S4：After whole steel box-girders are installed, steel box-girder splicing is carried out, and steel box-girder is connected with column.
In such scheme, the sliding trolley is provided with detachable jack.
In such scheme, the sliding trolley is provided with positioning baffle.
In such scheme, the track girder of the column left and right sides is connected by crossbeam.
In such scheme, in step s3, by second positioning of steel box girder it is good after fixed with interim gate type support, will slide
Dolly is moved at untethered space, and sliding trolley is connected into integral with additional dolly with tie-beam, carries out the 3rd steel case
The sliding construction of beam.
In such scheme, suspension ring are provided with the top of the steel box-girder.
In such scheme, the support system includes support and angle brace, the angle brace connecting bracket and track girder.
In such scheme, step S5 is also included after the step S4：Remove interim gate type support, sliding trolley, rail
Road beam, track and support system.
In such scheme, the draw-gear in the step S2 is chain block.
In such scheme, the column is steel column.
Implement steel box-girder installation method under the clear height constrained state of the present invention, have the advantages that：
1st, clear height is installed using the inventive method and is limited steel box-girder, compensate for clear height and be limited the technical sky of steel box girder construction
In vain.
2nd, normal traffic is ensure that while construction, and loop wheel machine supporting leg operation is fixed on same place position during construction,
Save repeatedly supporting leg, received the time of leg, saved substantial amounts of machinery cost, labour cost and fee of material, improve efficiency of construction.
3rd, after steel box-girder is moved into place, fixed by interim gate type support, then remove detachable jack and positioning is kept off
Sliding trolley, is then moved at untethered space by plate, realizes the recycling of dolly, simplifies operational procedure, also reduces
Dolly usage amount, saves cost.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is the schematic diagram of steel box-girder installation method under clear height constrained state of the present invention；
Fig. 2 is Fig. 1 side view；
Fig. 3 is the structural representation of sliding trolley；
Schematic diagram when Fig. 4 is the installation of first steel box-girder；
Fig. 5 is the schematic diagram after being installed in place of first steel box-girder；
Fig. 6 is the splicing schematic diagram of three steel box-girders.
Embodiment
In order to which technical characteristic, purpose and effect to the present invention are more clearly understood from, now compare accompanying drawing and describe in detail
The embodiment of the present invention.
As shown in figs 1 to 6, steel box-girder installation method comprises the following steps under clear height constrained state of the present invention：
S1：It is two steel columns in this implementation, column 1 is used to support steel box-girder 9 in existing 12 times installation columns 1 of bridge.
Support system, track girder 3 and track are set in the both sides of column 1, the track girder 3 of the left and right sides of column 1 is connected by crossbeam 16.
Support system and track girder 3 are modular construction, convenient disassembly.Support system includes support 2 and angle brace 4, the connection branch of angle brace 4
Frame 2 and track girder 3.Track girder 3 is fixed on above support system, and track is located on track girder 3, and at least one end of track 5 is located at
Outside bridge, sliding trolley 6 is set on track 5.Sliding trolley 6 is provided with detachable jack 7 and positioning baffle 8.
S2：By first steel box-girder 9 by being fixed on crane lifting to sliding trolley 6 temporarily, the top of steel box-girder 9, which is provided with, hangs
Ring 10, suspension ring 10 are connected by steel wire rope 11 with crane.It is spacing by first steel box-girder 9 of positioning baffle 8 pair, by detachable
Jack 7 adjusts levelness.Sliding trolley 6 is slid onto precalculated position with draw-gears such as chain blocks.
S3：Fixed after first steel box-girder 9 is had good positioning with interim gate type support 13, remove detachable jack 7 and fixed
Position baffle plate 8, is moved at untethered space as shown in figure 5, then getting out sliding trolley 6 from the interim bottom of gate type support 13,
The sliding construction of second steel box-girder 9 is carried out, the sliding construction of follow-up steel box-girder 9 is repeatedly performed.In the present embodiment, the 3rd steel
The span of box beam 9 is larger, it is necessary to two dolly supports.After being fixed after second steel box-girder 9 is had good positioning with interim gate type support 13,
Sliding trolley 6 is moved at untethered space, sliding trolley 6 is connected integral with additional dolly 14 with tie-beam 15, entered
The sliding construction of the 3rd steel box-girder 9 of row.
S4：After whole steel box-girders 9 are installed, carry out steel box-girder 9 and splice, and the mode general such as be bolted, weld
Steel box-girder 9 is connected with column 1, then up completes the installation for intending widening steel box-girder 17.
S5：Remove interim gate type support 13, sliding trolley 6, track girder 3, track 5 and support system.Whole support system
Center of gravity outside steel box-girder 9, clear height is unaffected during dismounting, can be accomplished in a simple dismounting process.
Embodiments of the invention are described above in conjunction with accompanying drawing, but the invention is not limited in above-mentioned specific
Embodiment, above-mentioned embodiment is only schematical, rather than restricted, one of ordinary skill in the art
Under the enlightenment of the present invention, in the case of present inventive concept and scope of the claimed protection is not departed from, it can also make a lot
Form, these are belonged within the protection of the present invention.
Claims (10)
1. steel box-girder installation method under a kind of clear height constrained state, it is characterised in that comprise the following steps：
S1：Column is installed under bridge, support system, track girder and track are set in the both sides of column, column is used for supporting steel
Box beam, track girder is fixed on above support system, and track is located on track girder, and at least one end of track is located at outside bridge, track
Upper setting sliding trolley；
S2：By first steel box-girder by being fixed on crane lifting to sliding trolley temporarily, sliding trolley is slided with draw-gear
Move on to precalculated position；
S3：By first positioning of steel box girder it is good after fixed with interim gate type support, sliding trolley is moved at untethered space,
The sliding construction of second steel box-girder is carried out, the sliding construction of follow-up steel box-girder is repeatedly performed；
S4：After whole steel box-girders are installed, steel box-girder splicing is carried out, and steel box-girder is connected with column.
2. steel box-girder installation method under clear height constrained state according to claim 1, it is characterised in that the sliding trolley
It is provided with detachable jack.
3. steel box-girder installation method under clear height constrained state according to claim 1, it is characterised in that the sliding trolley
It is provided with positioning baffle.
4. steel box-girder installation method under clear height constrained state according to claim 1, it is characterised in that described column or so
The track girder of both sides is connected by crossbeam.
5. steel box-girder installation method under clear height constrained state according to claim 1, it is characterised in that in step s3,
By second positioning of steel box girder it is good after fixed with interim gate type support, sliding trolley is moved at untethered space, with connection
Sliding trolley is connected integral by beam with additional dolly, carries out the sliding construction of the 3rd steel box-girder.
6. steel box-girder installation method under clear height constrained state according to claim 1, it is characterised in that the steel box-girder top
Portion is provided with suspension ring.
7. steel box-girder installation method under clear height constrained state according to claim 1, it is characterised in that the support system
Including support and angle brace, the angle brace connecting bracket and track girder.
8. steel box-girder installation method under clear height constrained state according to claim 1, it is characterised in that in the step S4
Also include step S5 afterwards：Remove interim gate type support, sliding trolley, track girder, track and support system.
9. steel box-girder installation method under clear height constrained state according to claim 1, it is characterised in that in the step S2
Draw-gear be chain block.
10. steel box-girder installation method under clear height constrained state according to claim 1, it is characterised in that the column is
Steel column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710573869.9A CN107254849A (en) | 2017-07-14 | 2017-07-14 | Steel box-girder installation method under a kind of clear height constrained state |
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| CN201710573869.9A CN107254849A (en) | 2017-07-14 | 2017-07-14 | Steel box-girder installation method under a kind of clear height constrained state |
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| CN201710573869.9A Pending CN107254849A (en) | 2017-07-14 | 2017-07-14 | Steel box-girder installation method under a kind of clear height constrained state |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107761582A (en) * | 2017-10-31 | 2018-03-06 | 武汉冶钢结构有限责任公司 | The sliding hanging method and sliding auxiliary hoisting device of restricted clearance installation steel box-girder |
| CN109056438A (en) * | 2018-09-06 | 2018-12-21 | 上海市机械施工集团有限公司 | A kind of construction method of overhead road of city ring road transformation |
| CN109457626A (en) * | 2018-10-18 | 2019-03-12 | 广西路桥工程集团有限公司 | A method of precast beam being installed in height-limit area |
| CN110374001A (en) * | 2019-06-27 | 2019-10-25 | 中国一冶集团有限公司 | A kind of bridge bottom long-span beam construction method |
| CN110878525A (en) * | 2019-11-06 | 2020-03-13 | 武船重型工程股份有限公司 | Double-layer steel box girder bridge installation method and combined support for installation |
| CN111058046A (en) * | 2019-11-28 | 2020-04-24 | 上海二十冶建设有限公司 | Method for installing looping car in limited space |
| CN112010147A (en) * | 2020-07-22 | 2020-12-01 | 上海二十冶建设有限公司 | Rapid installation method of large-scale unit auxiliary equipment in limited space |
| CN112224642A (en) * | 2020-09-23 | 2021-01-15 | 中国五冶集团有限公司 | Device and method for mounting and conveying steel structural member adjusting piece |
| CN113026522A (en) * | 2021-03-22 | 2021-06-25 | 北京市政建设集团有限责任公司 | Bridge steel box girder installation structure and construction process |
| CN113152166A (en) * | 2021-04-15 | 2021-07-23 | 中铁三局集团华东建设有限公司 | Straddle type monorail track beam sliding erection tool |
| CN114211187A (en) * | 2021-12-29 | 2022-03-22 | 河南六建重工有限公司 | Feeding device for welding construction of steel structure bridge |
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| JPH04289303A (en) * | 1991-03-19 | 1992-10-14 | Kawasaki Steel Corp | Method for widening road bridge |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107761582A (en) * | 2017-10-31 | 2018-03-06 | 武汉冶钢结构有限责任公司 | The sliding hanging method and sliding auxiliary hoisting device of restricted clearance installation steel box-girder |
| CN109056438B (en) * | 2018-09-06 | 2021-02-23 | 上海市机械施工集团有限公司 | Construction method for transformation of urban elevated ramp |
| CN109056438A (en) * | 2018-09-06 | 2018-12-21 | 上海市机械施工集团有限公司 | A kind of construction method of overhead road of city ring road transformation |
| CN109457626A (en) * | 2018-10-18 | 2019-03-12 | 广西路桥工程集团有限公司 | A method of precast beam being installed in height-limit area |
| CN110374001B (en) * | 2019-06-27 | 2021-05-18 | 中国一冶集团有限公司 | Bridge bottom large-span cross beam construction method |
| CN110374001A (en) * | 2019-06-27 | 2019-10-25 | 中国一冶集团有限公司 | A kind of bridge bottom long-span beam construction method |
| CN110878525A (en) * | 2019-11-06 | 2020-03-13 | 武船重型工程股份有限公司 | Double-layer steel box girder bridge installation method and combined support for installation |
| CN111058046A (en) * | 2019-11-28 | 2020-04-24 | 上海二十冶建设有限公司 | Method for installing looping car in limited space |
| CN112010147A (en) * | 2020-07-22 | 2020-12-01 | 上海二十冶建设有限公司 | Rapid installation method of large-scale unit auxiliary equipment in limited space |
| CN112224642A (en) * | 2020-09-23 | 2021-01-15 | 中国五冶集团有限公司 | Device and method for mounting and conveying steel structural member adjusting piece |
| CN113026522A (en) * | 2021-03-22 | 2021-06-25 | 北京市政建设集团有限责任公司 | Bridge steel box girder installation structure and construction process |
| CN113152166A (en) * | 2021-04-15 | 2021-07-23 | 中铁三局集团华东建设有限公司 | Straddle type monorail track beam sliding erection tool |
| CN114211187A (en) * | 2021-12-29 | 2022-03-22 | 河南六建重工有限公司 | Feeding device for welding construction of steel structure bridge |
| CN114211187B (en) * | 2021-12-29 | 2024-04-12 | 河南六建重工有限公司 | Feeding device for welding construction of steel structure bridge |
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Application publication date: 20171017 |