CN106192755A - A kind of fish-bellied type shaped form cross a river double width steel box-girder steel bridge construction method of installation - Google Patents
A kind of fish-bellied type shaped form cross a river double width steel box-girder steel bridge construction method of installation Download PDFInfo
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- CN106192755A CN106192755A CN201510212875.2A CN201510212875A CN106192755A CN 106192755 A CN106192755 A CN 106192755A CN 201510212875 A CN201510212875 A CN 201510212875A CN 106192755 A CN106192755 A CN 106192755A
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Abstract
The present invention relates to a kind of fish-bellied type shaped form cross a river double width steel box-girder steel bridge construction method of installation, using the mode of segmentation thrusting slip and synchronous control technique, solving transit route the most through, river course, the both sides depth of water can not can not meet the problems such as crane barge draft, operation side be the most crowded.The method of the invention is workable, and high-altitude installation effectiveness is high, improves the installation positioning precision of fish-bellied type shaped form cross a river double width steel box-girder simultaneously, reduces error rate, improve the quality of bridge steel structure, reduces the installation risk of steel construction.
Description
Technical field
The present invention relates to the construction method of installation of a kind of bridge steel structure, particularly a kind of fish-bellied type shaped form cross a river double width steel
Box beam steel bridge construction method of installation.
Background technology
For different types of rridges structural steelwork, typical structure therein is more, especially fish-bellied type shaped form cross a river double width
The bridge steel structure of steel box-girder is the novel moulding in recent years occurred.Conventional construction method is " lifting of river course piling+crane barge ",
The transit route of the sections that there is double width steel bridge the most through, river course, the both sides depth of water can not can not meet crane barge drinking water, construction
The contradictions such as the scope of operation is the most crowded.If taking Hoisting Program, then offshore side in both sides, river course is both needed to carry out dredging to meeting crane barge
Draft.Auxiliary work amount is big, and the transport of mud after dredging, the problem stacking, process headache the most especially.Dike
The dredging in river course, bank side is likely to cause potential safety hazard for embankment.Seriously constrain project progress.
Summary of the invention
The invention aims to solve the deficiencies in the prior art, it is provided that the fish-bellied type that a kind of positioning precision is high, error is little
Shaped form cross a river double width steel box-girder steel bridge construction method of installation.
In order to realize object above, the present invention relates to a kind of fish-bellied type shaped form cross a river double width steel box-girder steel bridge installation side
Method, specifically comprising the following steps that of the method
(1) fish-bellied type shaped form cross a river double width steel box-girder is carried out segmentation, ensure that segmentation weight meets lifting machine and plays principal characteristic
Energy；
(2) determine the position of centre of gravity of every sections, and determine lifting position according to position of centre of gravity, and hanger is set；
(3) determine sliding rail position and steel-pipe pile position, river course and riverbank are beaten steel pipe column, steel pipe column is installed even
Connecing tie-rod, respectively two width sliding rail beam and sliding rails about erection, the most left width arranges preformed hole；
(4) mounting slip bracket on right width track, two guide rails of right width track are respectively mounted thrustor, with floating
Hang in first section of steel box-girder lifting to right width sliding bracket, utilize thrustor by first section of steel box-girder along track to a side slip
To assigned position, and it is fixed；Mounting slip bracket on left width track, two guide rails of left width track are respectively mounted
Thrustor, with crane barge by second segment steel box-girder lifting to left width sliding pallet frame, utilizes thrustor by second segment steel box-girder
Slide onto assigned position to side along track, and be fixed；
(5) repeat step (4), segmentation steel box-girder carried out hoisting slide successively according to the mode that left and right width is staggered and fixes,
Right width steel box-girder section from two lateral in the middle of complete closure, left width steel box-girder section from two lateral in the middle of install to preformed hole two rear flank
Suspend；
(6) in preformed hole, squeeze into steel-pipe pile, lift interim spandrel girder with crane barge, interim spandrel girder arranges beam section auxiliary
Help the temporary rest pier of installation；
(7) left width residue steel box girder segment is directly lifted with crane barge until left width joins the two sections of a bridge, etc.
Described a kind of fish-bellied type shaped form cross a river double width steel box-girder steel bridge construction method of installation, hanger quantity in step (2)
It it is 4.
Described a kind of fish-bellied type shaped form cross a river double width steel box-girder steel bridge construction method of installation, when making steel pipe column, at steel-pipe pile
Specify elevation location that steel-pipe pile settlement observation point is set, periodically observation steel-pipe pile sedimentation situation；
Described a kind of fish-bellied type shaped form cross a river double width steel box-girder steel bridge construction method of installation, logical between steel-pipe pile and steel-pipe pile
Cross steel pipe column connection tie-rod to be welded to connect, be welded to connect between sliding rail beam and steel-pipe pile, sliding rail and sliding rail
Karma mode is used to fix between beam；
Described a kind of fish-bellied type shaped form cross a river double width steel box-girder steel bridge construction method of installation, two guide rails of sliding rail are
Concentric circular；During in step (4), (5), thrustor promotes steel box-girder sliding, the pushing tow point on two guide rails
The ratio of displacement is equal to the ratio of guide rail radius.
The present invention uses " divide lifting elements+river course piling and arrange sliding supporting system+crane barge segment lifting+thrusting slip "
Method solve fish-bellied type shaped form cross a river double width steel box-girder and the difficult problem in location be installed and avoid training of channel work
Amount, the method for the invention is workable, and installation effectiveness is high, improves fish-bellied type shaped form cross a river double width steel case simultaneously
The space mounting positioning precision of beam, reduces error rate, improves the quality of bridge steel structure, reduces Steel Structure Installation
Security risk.
Accompanying drawing explanation
It is clearly understood to make present disclosure be easier to, below according to specific embodiment and combine accompanying drawing, to this
Invention is described in further detail, wherein
Fig. 1 is that sliding of the present invention carries system schematic diagram.
Wherein 1-1 is right width steel-pipe pile；1-2 is left width steel-pipe pile；1-3 is the steel-pipe pile at left width span centre preformed hole；1-4
For right width sliding rail beam；1-5 is right width sliding rail；1-6 is left width sliding rail beam；1-7 is left width sliding rail；
1-8 is interim spandrel girder；1-9 is temporary rest pier；1-10 is preformed hole.
Fig. 2 is sliding rail beam and track generalized section in sliding carrying system of the present invention.
Fig. 3 is the temporary rest pier schematic diagram on sliding of the present invention carrying system span centre load-bearing girder steel.
Fig. 4 is that steel box girder segment of the present invention divides schematic diagram.
Fig. 5 is steel box girder segment suspension centre of the present invention and hanger arranges schematic diagram.
Wherein 5-1 is steel box girder segment；5-2 is hanger.
Fig. 6 is steel box girder segment synchronization-sliding effect schematic diagram of the present invention.
In figure, 6-1 is steel box girder segment；6-2 be steel-pipe pile, 6-3 be sliding carrying girder steel, 6-4 be tie-rod；6-5 is for sliding
Shift bracket；6-6 is sliding rail；6-7 is thrustor.
Fig. 7 is that integral installation of the present invention has been constructed rear schematic diagram.
Detailed description of the invention
(embodiment 1)
Fish-bellied type shaped form cross a river double width steel box-girder is carried out segmentation, and two width about steel box-girder are divided into left width by the present embodiment
21 sections, right 20 sections, as shown in Figure 2.
Determine the position of centre of gravity of every sections, and determine lifting position according to position of centre of gravity, and hanger 5-2, this enforcement are set
In example, hanger quantity is 4, as shown in Figure 5.
Fish-bellied type shaped form cross a river double width steel box girder segment integral installation construction process is as follows:
Flow process 1: subregion beats right width steel pipe column 1-1 and left width steel pipe column 1-2 on river course and riverbank, installs steel pipe column even
Connect tie-rod, set up right width sliding rail beam 1-4, right width sliding rail 1-5 and left width sliding rail beam 1-6, left width respectively
Sliding rail 1-7.Left width span centre arranges preformed hole 1-10 and does not closes, in order to crane barge carries out the lifting of right width bridge section.
In steel-pipe pile work progress, specify elevation location that steel-pipe pile settlement observation point is set at every steel-pipe pile, periodically observation steel
Pile tube sedimentation situation.
It is connected tie-rod by steel pipe column between steel-pipe pile with steel-pipe pile to be welded to connect, weld between sliding rail beam and steel-pipe pile
Connect, between sliding rail and sliding rail beam, use Karma mode to fix
Flow process 2: crane barge anchors, first section of beam Y20 transport puts in place.
Flow process 3: as shown in Figure 6, mounting slip bracket 6-5 on sliding rail 6-6, two guide rails of track are pacified respectively
Dress thrustor 6-7, with crane barge by Y20 lifting to sliding bracket 6-5, along sliding rail 6-6 to a bank sliding.
When sliding, owing to for curve sliding, two guide rails of sliding rail 6-6 are concentric circular, in order to realize synchronization-sliding
Requirement, the ratio of the displacement of the pushing tow point on two guide rails is equal to the ratio of guide rail radius.
The sliding of flow process 4:Y20 puts in place, adjusts sections position, and is fixed.
Flow process 5: after crane barge anchoring, the transport of Z21 beam section puts in place.
Flow process 6: with reference to flow process 3, by Z21 along left width sliding rail to a bank sliding.
The sliding of flow process 7:Z21 puts in place, adjusts sections position, and is fixed.
Flow process 8: by aforementioned same flow process, fixes Y1, Z1 segment lifting sliding successively.
Flow process 9: by aforementioned same flow process, is staggered installation of left and right width steel box girder segment successively from two sides to centre.Wherein,
After left width Z7, Z13 are in place, the installation of left width beam section suspends；Right width beam section is then installed to closure.
Flow process 10: squeeze into steel-pipe pile 1-3 in left width preformed hole 1-10, lifts left width interim spandrel girder 1-8 with crane barge,
And temporary rest pier 1-9 is set on interim spandrel girder.
Flow process 11: fix with crane barge lifting left width residue beam section Z8, Z9, Z10, Z11 sliding successively.
Flow process 12: lifting Z10 joins the two sections of a bridge, etc.
The present embodiment is merely to illustrate the present invention rather than limits the scope of the present invention, after having read the present invention, this
Skilled person all falls within, to the amendment of the various equivalent form of values of the present invention, the model that the application claims are limited
Enclose.
Claims (5)
1. a fish-bellied type shaped form cross a river double width steel box-girder steel bridge construction method of installation, it is characterised in that the method
Specifically comprise the following steps that
(1) fish-bellied type shaped form cross a river double width steel box-girder is carried out segmentation, ensure that segmentation weight meets lifting machine and plays principal characteristic
Energy；
(2) determine the position of centre of gravity of every sections, and determine lifting position according to position of centre of gravity, and hanger is set；
(3) determine sliding rail position and steel-pipe pile position, river course and riverbank are beaten steel pipe column, steel pipe column is installed even
Connecing tie-rod, respectively two width sliding rail beam and sliding rails about erection, the most left width arranges preformed hole；
(4) mounting slip bracket on right width track, two guide rails of right width track are respectively mounted thrustor, with floating
Hang in first section of steel box-girder lifting to right width sliding bracket, utilize thrustor by first section of steel box-girder along track to a bank sliding
To assigned position, and it is fixed；Mounting slip bracket on left width track, two guide rails of left width track are respectively mounted
Thrustor, with crane barge by second segment steel box-girder lifting to left width sliding pallet frame, utilizes thrustor by second segment steel box-girder
Slide onto assigned position along track to a bank, and be fixed；
(5) repeat step (4), segmentation steel box-girder carried out hoisting slide successively according to the mode that left and right width is staggered and fixes,
Right width steel box-girder section completes closure from two sides to centre, and left width steel box-girder section is installed to preformed hole two rear flank from two sides to centre
Suspend；
(6) in preformed hole, squeeze into steel-pipe pile, lift interim spandrel girder with crane barge, interim spandrel girder arranges beam section auxiliary
Help the temporary rest pier of installation；
(7) left width residue steel box girder segment is directly lifted with crane barge until left width joins the two sections of a bridge, etc.
A kind of fish-bellied type shaped form cross a river double width steel box-girder steel bridge construction method of installation the most according to claim 1,
It is characterized in that: in step (2), hanger quantity is 4.
A kind of fish-bellied type shaped form cross a river double width steel box-girder steel bridge construction method of installation the most according to claim 1,
It is characterized in that: when making steel pipe column, specify elevation location that steel-pipe pile settlement observation point is set at steel-pipe pile, periodically observation
Steel-pipe pile sedimentation situation.
A kind of fish-bellied type shaped form cross a river double width steel box-girder steel bridge construction method of installation the most according to claim 1,
It is characterized in that: between steel-pipe pile with steel-pipe pile by steel pipe column be connected tie-rod be welded to connect, sliding rail beam and steel-pipe pile
Between be welded to connect, between sliding rail and sliding rail beam use Karma mode fix.
A kind of fish-bellied type shaped form cross a river double width steel box-girder steel bridge construction method of installation the most according to claim 1,
It is characterized in that: two guide rails of sliding rail are concentric circular；In step (4), (5), thrustor promotes steel box-girder sliding
During shifting, the ratio of the displacement of the pushing tow point on two guide rails is equal to the ratio of guide rail radius.
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| CN201510212875.2A CN106192755A (en) | 2015-04-29 | 2015-04-29 | A kind of fish-bellied type shaped form cross a river double width steel box-girder steel bridge construction method of installation |
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Cited By (8)
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| CN106758742A (en) * | 2016-12-29 | 2017-05-31 | 中国冶集团有限公司 | A kind of curved variable cross-section fish-bellied type Steel Continuous Box beam and its construction method |
| CN107142832A (en) * | 2017-05-23 | 2017-09-08 | 中建钢构有限公司 | A kind of construction method of arc steel box-girder |
| CN108203931A (en) * | 2018-03-09 | 2018-06-26 | 中铁十六局集团第三工程有限公司 | A kind of steel box-girder slides bracket |
| CN108221701A (en) * | 2018-03-09 | 2018-06-29 | 中铁十六局集团第三工程有限公司 | A kind of steel box-girder mounting bracket |
| CN108301328A (en) * | 2018-02-01 | 2018-07-20 | 广州市恒盛建设工程有限公司 | One kind getting higher change and indulges horizontal curve steel box girder construction method |
| CN110725215A (en) * | 2019-11-06 | 2020-01-24 | 郑州市市政工程总公司 | Beam transporting structure of newly-built upper-layer bridge on existing bridge and beam transporting method using existing bridge |
| CN111764300A (en) * | 2020-07-21 | 2020-10-13 | 安徽省交通建设股份有限公司 | Curved steel beam pushing system and construction method |
| CN113065183A (en) * | 2021-03-01 | 2021-07-02 | 中国建筑一局(集团)有限公司 | Optimization method, optimization device and optimization system of construction scheme |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106758742A (en) * | 2016-12-29 | 2017-05-31 | 中国冶集团有限公司 | A kind of curved variable cross-section fish-bellied type Steel Continuous Box beam and its construction method |
| CN106758742B (en) * | 2016-12-29 | 2019-08-23 | 中国一冶集团有限公司 | A kind of curved variable cross-section fish-bellied type Steel Continuous Box beam and its construction method |
| CN107142832A (en) * | 2017-05-23 | 2017-09-08 | 中建钢构有限公司 | A kind of construction method of arc steel box-girder |
| CN107142832B (en) * | 2017-05-23 | 2019-08-13 | 中建钢构有限公司 | A kind of construction method of arc steel box-girder |
| CN108301328A (en) * | 2018-02-01 | 2018-07-20 | 广州市恒盛建设工程有限公司 | One kind getting higher change and indulges horizontal curve steel box girder construction method |
| CN108203931A (en) * | 2018-03-09 | 2018-06-26 | 中铁十六局集团第三工程有限公司 | A kind of steel box-girder slides bracket |
| CN108221701A (en) * | 2018-03-09 | 2018-06-29 | 中铁十六局集团第三工程有限公司 | A kind of steel box-girder mounting bracket |
| CN110725215A (en) * | 2019-11-06 | 2020-01-24 | 郑州市市政工程总公司 | Beam transporting structure of newly-built upper-layer bridge on existing bridge and beam transporting method using existing bridge |
| CN111764300A (en) * | 2020-07-21 | 2020-10-13 | 安徽省交通建设股份有限公司 | Curved steel beam pushing system and construction method |
| CN111764300B (en) * | 2020-07-21 | 2022-03-25 | 安徽省交通建设股份有限公司 | Curved steel beam pushing system and construction method |
| CN113065183A (en) * | 2021-03-01 | 2021-07-02 | 中国建筑一局(集团)有限公司 | Optimization method, optimization device and optimization system of construction scheme |
| CN113065183B (en) * | 2021-03-01 | 2022-05-17 | 中国建筑一局(集团)有限公司 | Optimization method, optimization device and optimization system of construction scheme |
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