CN105369737B - Splicing process for segment for movable bridge - Google Patents
Splicing process for segment for movable bridge Download PDFInfo
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- CN105369737B CN105369737B CN201510646366.0A CN201510646366A CN105369737B CN 105369737 B CN105369737 B CN 105369737B CN 201510646366 A CN201510646366 A CN 201510646366A CN 105369737 B CN105369737 B CN 105369737B
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- crossbeam
- bridge
- assembled
- purlin
- splicing
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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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a splicing process for segments of a movable bridge. The splicing process comprises the following specific steps: firstly positioning a bridge panel; splicing plate units along the long axis direction of the plate units, and after splicing is completed, firstly welding the longitudinal seams of the plate units and then welding seams between the plate units and transverse ribs; then splicing purlin pieces at two sides of the bridge: vertically mounting one pair of purlin pieces at two ends of a bridge panel block while stabilizing with a tool; then splicing cross beams, wherein the cross beams are kept horizontal during splicing, the center lines of the cross beam need to be aligned to the center lines of one pair of purlin pieces, and the cross beams are fixed with the purlin pieces by using high-strength bolts after positioning is qualified; and finally splicing a bracing: in splicing, firstly positioning the bracing on a jig frame B and keeping horizontal, placing the bracing between the cross beams and then fastening and fixing with bolts. The splicing process has the advantages that segments of the movable bridge are made according to an overall segment of 54m, the structure setting is reasonable, operation steps are simple, and installation and positioning are accurate.
Description
Technical field
The present invention relates to a kind of bridge activity crane span structure section assembling technique, belongs to bridge manufacturing technology field.
Background technology
With developing rapidly for social economy, the pressure of land transportation is increasingly highlighted, in order to solve this pressure, in a large number
Railway, the project such as highway build imperative, for the great rivers passed through across road, the bridge of large span
Using certainty is tended to, people are also designed in the structure of the bridge to different distance.
In the bridge of present invention research, using half-through bilayer trussed bridge, span setting is 496m to main bridge, bridge main line
It is divided into upper and lower two-layer, upper deck of bridge service motor vehicles, beam overall 33m by function；Lower floor's bridge service slow-vehicle system, width 12m are main
In spanning, 108m lower floors bridge floor can be removed to both sides by being suspended on the vertical shift track at upper deck of bridge beam bottom, to meet 500t levels
Ship navigation is required；In lower floor's bridge floor closure state at ordinary times, beam bottom about 300m scopes meet yacht navigational clearance height；And
Movable crane span structure therein is also indispensable structure composition in device.Traditional movable bridge stand manufacturing method is loaded down with trivial details, and operation is not
It is convenient, it is impossible to meet the requirement made to movable crane span structure 54m entirety sections, while in bridge manufacturing process, requirement for horizontality pole
Height, the levelness of the position judgment end face that traditional method is dripped by observation hydrargyrum, this kind of method are missed by direct visual perception
Difference is big；Therefore be badly in need of developing a kind of manufacture method be simple and convenient to operate and high precision bridge activity crane span structure section assembling technique,
Jing is retrieved, and is not found and same or analogous technical scheme of the invention.
The content of the invention
The technical problem to be solved in the present invention be to provide a kind of manufacture method be simple and convenient to operate and high precision bridge live
Dynamic crane span structure section assembling technique.
For solving above-mentioned technical problem, the technical scheme is that：A kind of bridge activity crane span structure section assembling technique, its
Innovative point is：The assembling process is specific as follows：
（1）Bridge floor plate is positioned：The bridge floor plate includes two Slab elements for arranging in the same plane, is arranged on plate
Some cross ribs of unit bottom；It is during assembled Slab element, two Slab elements are assembled along the side that long axis direction is located, then weld
Butt weld between two Slab elements, ensures to weld allowance for shrinkage with 3mm during welding；Some cross ribs are along Slab element short axle side
To Slab element lower end is set in parallel in, after the completion of positioning, weld and the weld seam between Slab element；
（2）Crane span structure both sides purlin piece is assembled：Both sides purlin piece diagonal web member respectively including top boom, lower boom and centre, it is assembled
When, first by top boom and lower boom positioned parallel on moulding bed A, then diagonal web member is installed again successively, is matched somebody with somebody with top pick when in place
Close；After purlin piece completes, vertical symmetry is arranged on the two ends of bridge floor plate, at the same it is vertical with some cross ribs, it is aided with during installation
Frock is consolidated；Purlin piece upper surface levelness, the levelness detection are checked by levelness detecting device after the completion of fixation
Device includes a circuit board, arranges horizontal-shift quantity sensor on circuit boards, electronic displayss；During detection, by circuit board
The upper surface of purlin piece is placed on, the numerical value observed on electronic displayss, when numerical value is shown as " 0 ", end face level；Then measure
A pair of purlins piece upper surface height, keeps two ends highly identical, finally carries out line process, mark a pair of purlins piece upper surface centrage
A；
（3）Crossbeam is assembled：By a pair of moulding bed B fixed placements at the two ends of a pair of purlin pieces, the section is then positioned on moulding bed A
The crossbeam of section, and mark the centrage B of crossbeam；The levelness that levelness detecting device detects crossbeam is reused when assembled, together
When ensure that crossbeam centrage B aligns with the centrage A of a pair of purlin pieces, position it is qualified after, using Electric torque wrench by crossbeam and
It is fixed by high-strength bolt between the piece of purlin, a pair of moulding bed B is removed after the completion of fixing；
（4）Lateral is assembled：The lateral is arranged between crossbeam, and when assembled, then horizontal location first will on moulding bed C
Lateral is positioned between crossbeam and with levelness detecting device detection level degree, recycles Electric torque wrench to incite somebody to action after the completion of positioning
High-strength bolt is locked.
Further, the step（1）Lincoln weld is adopted during middle welding.
Further, the step（3）When middle cross beam is assembled, lower end arranges some crossbeam buttresses.
Further, the step（4）Lateral assembly after the completion of, using ultrasonic listening instrument successively to bridge floor plate,
Purlin piece, crossbeam and lateral carry out carrying out flaw detection.
Further, after the completion of the carrying out flaw detection, movable crane span structure is placed in pre-track carries out test run.
Further, the movable crane span structure is made according to 54m entirety sections.
It is an advantage of the current invention that：
1) bridge activity crane span structure section assembling technique mainly includes bridge floor plate positioning, the assembly of crane span structure both sides purlin piece, crossbeam
Assembled, lateral four key steps of assembly, and make according to 54m entirety sections, structure setting is reasonable, operating procedure is simple；Together
When installation process in, be accurately effectively guaranteed the levelness of purlin piece, crossbeam and lateral, accurate positioning be installed；
2) Lincoln weld is adopted when welding, and production efficiency is high, welding quality is good, labor condition is good, and bridge has been effectively ensured
The welding quality of panel block；
3), when crossbeam is assembled, two ends moulding bed A is fixed positioning, and lower end arranges some crossbeam buttresses, for crossbeam
It is supported, it is convenient assembled；
4), after the completion of lateral assembly, successively bridge floor plate, purlin piece, crossbeam and lateral are carried out using ultrasonic listening instrument
Whether carrying out flaw detection, detecting structure produce crack or defect during assembly, and bridge floor plate quality is effectively ensured；
5), after the completion of lateral assembly, movable crane span structure is placed in pre-track carries out test run, for detecting movable crane span structure
Steadiness, it is ensured that its safety.
Description of the drawings
Fig. 1 is a kind of structural representation of bridge floor plate of the invention.
Fig. 2 uses structural representation for levelness detecting device of the present invention.
Fig. 3 is a kind of structural representation of bridge activity crane span structure sections of the invention.
Specific embodiment
As shown in Figure 1, Figure 2 and Figure 3, the invention discloses a kind of bridge activity crane span structure section assembling technique, the assembled work
Skill is specific as follows：
（1）Bridge floor plate 1 is positioned：The bridge floor plate 1 includes two Slab elements 5 for arranging in the same plane, arranges
In some cross ribs 6 of 5 bottom of Slab element；It is during assembled Slab element 5, two Slab elements 5 are assembled along the side that long axis direction is located,
Then the butt weld between two Slab elements 5 is welded, and ensures allowance for shrinkage to be welded with 3mm during welding；Some cross ribs 6 are along plate
5 short-axis direction of unit is set in parallel in 5 lower end of Slab element, and after the completion of positioning, the weld seam between welding and Slab element 5, welding are equal
Using Lincoln weld；
（2）1 both sides purlin piece 2 of bridge floor plate is assembled：The oblique abdomen respectively including top boom, lower boom and centre of both sides purlin piece 2
Bar, when assembled, first by top boom and lower boom positioned parallel on moulding bed A, then installs diagonal web member again successively, uses when in place
Top pick coordinates；After purlin piece 2 completes, vertical symmetry is arranged on the two ends of bridge floor plate 1, while, peace vertical with some cross ribs 6
It is aided with frock to be consolidated during dress；2 upper surface levelness of purlin piece, the water are checked by levelness detecting device after the completion of fixation
Pingdu detection means includes a circuit board 7, the horizontal-shift quantity sensor 8 being arranged on circuit board 7, electronic displayss 9；Detection
When, circuit board 7 is placed on into the upper surface of purlin piece 2, the numerical value observed on electronic displayss 9, when numerical value is shown as " 0 ", end
Face level；Then a pair of 2 upper surface of purlin piece height are measured, is kept two ends highly identical, is finally carried out line process, mark a pair
2 upper surface centrage A of purlin piece；
（3）Crossbeam 3 is assembled：By a pair of moulding bed B fixed placements at the two ends of a pair of purlin pieces 2, then on moulding bed A, positioning should
The crossbeam 3 of sections, 3 lower end of crossbeam arrange some crossbeam buttresses, and mark the centrage B of crossbeam；Level is reused when assembled
Degree detection means detects the levelness of crossbeam 3, while ensureing that 3 centrage B of crossbeam is alignd with the centrage A of a pair of purlin pieces 2, positions
After qualified, will be fixed by high-strength bolt between crossbeam 3 and purlin piece 2 using Electric torque wrench, will after the completion of fixing
A pair of moulding bed B are removed；
（4）Lateral 4 is assembled：The lateral 4 is arranged between crossbeam 3, when assembled horizontal location first on moulding bed C, so
Afterwards lateral 4 is positioned between crossbeam 3 and with levelness detecting device detection level degree, electric torque after the completion of positioning, is recycled
High-strength bolt is locked by spanner；
（5）Detection：The bridge floor plate 1 that successively assembly completed first with ultrasonic listening instrument, purlin piece 2, crossbeam 3 and
Lateral 4 carries out carrying out flaw detection；Then according to above-mentioned steps continue to make some bridge activity crane span structure sections, after completing successively
Welding, and test run is carried out in pre-track.
The ultimate principle and principal character of the present invention has been shown and described above.It should be understood by those skilled in the art that,
The present invention is not restricted to the described embodiments, merely illustrating the principles of the invention described in above-described embodiment and description,
Without departing from the spirit and scope, the present invention also has various changes and modifications, and these changes and improvements all fall
Enter in scope of the claimed invention.The claimed scope of the invention is by appending claims and its equivalent thereof.
Claims (4)
1. a kind of bridge activity crane span structure section assembling technique, it is characterised in that：The assembling process is specific as follows：
（1）Bridge floor plate is positioned：The bridge floor plate includes two Slab elements for arranging in the same plane, is arranged on Slab element
Some cross ribs of bottom；It is during assembled Slab element, two Slab elements are assembled along the side that long axis direction is located, then weld two
Butt weld between Slab element, ensures to weld allowance for shrinkage with 3mm during welding；Some cross ribs are flat along Slab element short-axis direction
Row is arranged on Slab element lower end, the weld seam after the completion of positioning, between welding and Slab element；
（2）Crane span structure both sides purlin piece is assembled：Both sides purlin piece diagonal web member respectively including top boom, lower boom and centre, it is when assembled, first
First by top boom and lower boom positioned parallel on moulding bed A, then diagonal web member is installed again successively, is coordinated with top pick when in place；Purlin
After piece completes, vertical symmetry is arranged on the two ends of bridge floor plate, at the same it is vertical with some cross ribs, it is aided with frock during installation and enters
Row is firm；Purlin piece upper surface levelness, the levelness detecting device bag are checked by levelness detecting device after the completion of fixation
Include a circuit board, horizontal-shift quantity sensor on circuit boards, electronic displayss are set；During detection, circuit board is placed on
The upper surface of purlin piece, the numerical value observed on electronic displayss, when numerical value is shown as " 0 ", end face level；Then a pair of purlins are measured
Piece upper surface height, keeps two ends highly identical, finally carries out line process, mark a pair of purlins piece upper surface centrage A；
（3）Crossbeam is assembled：By a pair of moulding bed B fixed placements at the two ends of a pair of purlin pieces, then the sections is positioned on moulding bed A
Crossbeam, and mark the centrage B of crossbeam；The levelness that levelness detecting device detects crossbeam is reused when assembled, while protecting
Card crossbeam centrage B aligns with the centrage A of a pair of purlin pieces, position it is qualified after, using Electric torque wrench by crossbeam and purlin piece
Between be fixed by high-strength bolt, it is fixed after the completion of a pair of moulding bed B are removed；
（4）Lateral is assembled：The lateral is arranged between crossbeam, when assembled horizontal location first on moulding bed C, then by lateral
It is positioned between crossbeam and with levelness detecting device detection level degree, after the completion of positioning, recycles the Electric torque wrench will be high-strength
Degree bolt is locked；
The step（4）After the completion of lateral assembly, to bridge floor plate, purlin piece, crossbeam and put down using ultrasonic listening instrument successively
Connection carries out carrying out flaw detection；After the completion of the carrying out flaw detection, movable crane span structure is placed in pre-track carries out test run.
2. a kind of bridge activity crane span structure section assembling technique according to claim 1, it is characterised in that：The step（1）
Lincoln weld is adopted during middle welding.
3. a kind of bridge activity crane span structure section assembling technique according to claim 1, it is characterised in that：The step（3）
When middle cross beam is assembled, lower end arranges some crossbeam buttresses.
4. a kind of bridge activity crane span structure section assembling technique according to claim 1, it is characterised in that：The movable crane span structure
Make according to 54m entirety sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510646366.0A CN105369737B (en) | 2015-10-09 | 2015-10-09 | Splicing process for segment for movable bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510646366.0A CN105369737B (en) | 2015-10-09 | 2015-10-09 | Splicing process for segment for movable bridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105369737A CN105369737A (en) | 2016-03-02 |
| CN105369737B true CN105369737B (en) | 2017-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510646366.0A Active CN105369737B (en) | 2015-10-09 | 2015-10-09 | Splicing process for segment for movable bridge |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108519782B (en) * | 2018-04-04 | 2021-08-13 | 华东交通大学 | Automatic control system for prefabricated line shape of segmental bridge |
| CN115041853B (en) * | 2022-06-20 | 2024-05-14 | 中铁宝桥（扬州）有限公司 | Method for manufacturing upper chord block with hollowed-out cross-section |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2972607B2 (en) * | 1996-10-28 | 1999-11-08 | ショーボンド建設株式会社 | How to reinforce rivet girder |
| DE102008007816A1 (en) * | 2008-02-05 | 2009-08-13 | Ssf Ingenieure Gmbh Beratende Ingenieure Im Bauwesen | Reinforced concrete composite bridge and process for its production |
| CN101446069A (en) * | 2008-12-30 | 2009-06-03 | 中铁大桥局集团第五工程有限公司 | Multi-node integral installation method for steel truss beam |
| CN103266569B (en) * | 2013-05-24 | 2015-08-05 | 武船重型工程股份有限公司 | A kind of pre-assembly method of steel bridge |
| CN104878699B (en) * | 2015-06-18 | 2016-08-31 | 上海振华重工(集团)股份有限公司 | Pitching type truss-type bridges manufacture method |
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Address after: 226500 Wenjin Road, Yangtze River Town, Rugao City, Nantong City, Jiangsu Province Patentee after: China Railway Shanqiao (Nantong) Co.,Ltd. Address before: 226500 Wenjin Road, Yangtze River Town, Rugao City, Nantong City, Jiangsu Province Patentee before: JIANGSU CHINA RAILWAY SHANHAIGUAN BRIDGE HEAVY INDUSTRY Co.,Ltd. |