CN109653098A - A kind of nothing left dimension box girder assembling method - Google Patents
A kind of nothing left dimension box girder assembling method Download PDFInfo
- Publication number
- CN109653098A CN109653098A CN201811603504.7A CN201811603504A CN109653098A CN 109653098 A CN109653098 A CN 109653098A CN 201811603504 A CN201811603504 A CN 201811603504A CN 109653098 A CN109653098 A CN 109653098A
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- plate
- girder
- top plate
- assembling method
- nothing left
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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
Abstract
The present invention relates to a kind of nothing left dimension box girder assembling methods, beam section according to bottom board unit → side tabula plate unit → midfield plate unit → other side tabula plate unit → in web unit → centre top plate → choose arm unit → while top plate unit sequence, realize that three-dimensional stairstepping propulsion mode assembles and welding paragraph by paragraph, when assembling, using assembled moulding bed as cover tire, using diaphragm plate as the inner tube of a tyre, each plate unit is in place by longitudinal and transverse baseline, is aided with and reinforces facility to ensure precision and safety.The present invention has the advantages that assembling method through the invention, can effectively ensure that rod piece critical size, and steel is avoided to waste and reduce workload.
Description
Technical field
The invention belongs to bridge manufacturing technology field, in particular to a kind of nothing left dimension box girder assembling method.
Background technique
Steel box-girder generally by top plate and bottom plate, diaphragm plate, web and is chosen arm beam and is constituted, and generally passes through assembled welding and is formed
One body structure.
In traditional steel box girder assembling operation, to guarantee cabinet critical size, needs to lengthen in design length, increase remaining
Amount carries out secondary cutting head after assembling to steel box-girder again, although ensure that the critical size of rod piece during this, causes
The waste of steel and the increase of workload.
Summary of the invention
The technical problem to be solved in the present invention is to provide one kind can guarantee rod piece critical size, and avoid steel waste and
Reduce the nothing left dimension box girder assembling method of workload.
In order to solve the above technical problems, the technical solution of the present invention is as follows: a kind of nothing left dimension box girder assembling method, steel box-girder
Including the top plate being simultaneously distributed up and down, a bottom plate of cooperating, it is additionally provided with two groups between top plate and bottom plate and laterally divides side by side
The diaphragm plate of cloth, and between two groups of diaphragm plates and two groups of diaphragm plate sides are respectively equipped with median ventral plate and coxostermum, are bounded on each side web
Outer upper end be also symmetrically arranged with and choose arm beam, and choose be additionally provided on the outside of arm beam be fixedly connected with top plate choose arm web,
Innovative point is: nothing left dimension box girder assembling method uses upright method of hull section construction, using assembled moulding bed as cover tire, using diaphragm plate as the inner tube of a tyre, respectively
Plate unit is in place by longitudinal and transverse baseline, is aided with and reinforces facility to ensure precision and safety.
Further, the nothing left dimension box girder assembling method, the specific steps are as follows:
Step S1: positioning plate unit: bottom board unit is placed on assembled moulding bed, determines its horizontal, vertical baseline on mark tower
The positioning of bit line Accurate align controls the center between adjacent segment away from in the registration ± 1mm with bridge center line, completes bottom plate
It is assembled；
Step S2: group weldering web unit, tabula plate unit: longitudinal with segment bottom laterally on the basis of the position line on mark tower
On the basis of the horizontal baseline of plate reference edge, side diaphragm plate → median ventral plate → another side diaphragm plate → two coxostermums are successively assembled, it is assembled
After, complete the welding of web and bottom plate, diaphragm plate and bottom plate；
Step S3: it assembles intermediate top plate unit: assembling intermediate top plate unit, when assembling guarantees between top plate, web and diaphragm plate
Positioning accuracy ± 1mm in, and with level control 0 ~+2mm of box height in；
Step S4: arm beam, side top plate unit are chosen in assembling, welding casing: arm beam is chosen in the weldering of scribing line group, then assembles both sides top plate list
Member, butt weld between first welding top plate, then welding top plate and diaphragm plate, web, choose weld seam between arm web；
Step S5: total spell is detected and disintegrates after the completion.
Further, the assembled moulding bed makees moulding bed spelling according to the given steel box-girder manufacturing line shape of design in production
Wiring shape, and consider that steel box-girder is shunk the deformation for being influenced and being occurred with gravity by welding, laterally it is arranged on appropriate in moulding bed
Camber, moulding bed basis must have enough bearing capacities, it is ensured that and sedimentation≤1mm in use, moulding bed will have enough rigidity,
It avoids deforming in use；And longitudinal and transverse baseline and datum mark are set on moulding bed, to control position and the height of beam section,
Ensure that each portion's size and facade are linear.
Further, the detection in the step S5 includes longitudinal linear detection, segment distortion detection, the inspection of steel box-girder beam length
Survey the matching precision detection of the port between beam section.
Further, the linear detection in the longitudinal direction, is subject to the theoretical elevation of at longitudinal centre line and edge, and measurement is each
Segment both ends monitoring point three-dimensional coordinate.
Further, the segment distortion detection judges each segment by acquiring each segment both ends monitoring point three-dimensional coordinate
Horizontality and distorting event.
Further, the steel box-girder beam length detection, is measured each segmental length and is added up on the basis of the horizontal baseline in each segment
Length.
Further, between the beam section port matching precision detection, detect steel box-girder interface steel plate unfitness of butt joint and
Longitudinal stiffener merging precision makes amendment to the position required beyond acceptance criteria；It is repaired simultaneously according to measurement controlling computer
Positive result determines that steel box-girder matches the surplus cutting data of cut end, it is ensured that between welding of the steel box-girder when section assembling and bridge location are set up
Gap is suitable, and welding quality is effectively ensured.
The present invention has the advantages that nothing left dimension box girder assembling method of the present invention, beam section is horizontal according to bottom board unit → side
Separator unit → midfield plate unit → other side tabula plate unit → in web unit → centre top plate → choose arm unit → while push up
The sequence of plate unit realizes that three-dimensional stairstepping propulsion mode assembles and welding paragraph by paragraph；When assembling, using assembled moulding bed as cover tire, with
Diaphragm plate is the inner tube of a tyre, effectively controls the accurate matching of the linear of bridge, steel box-girder geometry and dimensional accuracy and adjacent interface,
It can effectively ensure that rod piece critical size, and steel avoided to waste and reduce workload.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the structural schematic diagram of steel box-girder in nothing left dimension box girder assembling method of the present invention.
Fig. 2 is the setting schematic diagram of assembled moulding bed side datum mark in the present invention.
Fig. 3-Fig. 6 is the flow diagram of nothing left dimension box girder assembling method of the present invention.
Specific embodiment
The following examples can make professional and technical personnel that the present invention be more fully understood, but therefore not send out this
It is bright to be limited among the embodiment described range.
Embodiment
The present embodiment nothing left dimension box girder assembling method, as shown in Figure 1, steel box-girder includes cooperating and being distributed up and down
One top plate 1, a bottom plate 2 are additionally provided with two groups laterally and the diaphragm plate 3 of column distribution between top plate 1 and bottom plate 2, and two groups horizontal
Between partition 3 and two groups of 3 sides of diaphragm plate are respectively equipped with median ventral plate 4 and coxostermum 5, and the outer upper end for being bounded on each side web 5 is also right
Claim be provided with the outside chosen arm beam 6, and choose arm beam 6 be additionally provided be fixedly connected with top plate 1 choose arm web 7.
The present embodiment nothing left dimension box girder assembling method is interior with diaphragm plate 3 using assembled moulding bed as cover tire using upright method of hull section construction
Tire, each plate unit is in place by longitudinal and transverse baseline, is aided with and reinforces facility to ensure precision and safety；As shown in Fig. 2, assembled moulding bed exists
When production, it is linear to make moulding bed assembly according to the given steel box-girder manufacturing line shape of design, and consider steel box-girder shunk by welding and
Camber appropriate is laterally arranged in moulding bed in the influence of gravity and the deformation occurred, and moulding bed basis must have enough bearing capacities,
Ensure to settle≤1mm in use, moulding bed there will be enough rigidity, avoid deforming in use；And on moulding bed
Longitudinal and transverse baseline and datum mark are set, to control position and the height of beam section, it is ensured that each portion's size and facade are linear.
The present embodiment nothing left dimension box girder assembling method, the specific steps are as follows:
Step S1: positioning plate unit: as shown in figure 3, bottom board unit is placed on assembled moulding bed, make its horizontal, vertical baseline and mark
On will tower position line Accurate align positioning, control adjacent segment between center away from the registration ± 1mm with bridge center line
It is interior, it is assembled to complete bottom plate 2；
Step S2: it group weldering web unit, tabula plate unit: as shown in figure 4, laterally on the basis of the position line on mark tower, indulges
To on the basis of the horizontal baseline of segment bottom plate reference edge, successively assemble 3 → median ventral plate of side diaphragm plate 4 → another side diaphragm plate 3 →
Two coxostermums 5 after assembled, complete the welding of web and bottom plate 2, diaphragm plate 3 and bottom plate 2；
Step S3: assemble intermediate top plate unit: as shown in figure 5, assemble intermediate top plate unit 1, when assembling, guarantees top plate 1, web
In positioning accuracy ± 1mm between diaphragm plate 2, and in level control 0 ~+2mm of box height；
Step S4: arm beam, side top plate unit are chosen in assembling, welding casing: as shown in fig. 6, arm beam 6 is chosen in the weldering of scribing line group, then assembling
Both sides top plate unit 1, butt weld between first welding top plate, then welding top plate 1 and diaphragm plate 3, web, choose between arm web 7
Weld seam；
Step S5: total spell is detected and disintegrates after the completion, including longitudinal linear detection, segment distortion detection, the detection of steel box-girder beam length
The matching precision detection of port between beam section；Longitudinal linear detection, is subject to the theoretical elevation of at longitudinal centre line and edge,
Measure each segment both ends monitoring point three-dimensional coordinate；Segment distortion detection is sentenced by acquiring each segment both ends monitoring point three-dimensional coordinate
Break each segment level state and distorting event；The detection of steel box-girder beam length, measures each segmental length on the basis of the horizontal baseline in each segment
And accumulation length；The matching precision detection of port, detects the steel plate unfitness of butt joint and longitudinal stiffener of steel box-girder interface between beam section
Merging precision makes amendment to the position required beyond acceptance criteria；It is determined simultaneously according to measurement controlling computer correction result
Steel box-girder matches the surplus cutting data of cut end, it is ensured that welded gaps of the steel box-girder when section assembling and bridge location are set up are suitable, have
Effect guarantees welding quality.
Basic principles and main features and advantages of the present invention of the invention have been shown and described above.The skill of the industry
Art personnel it should be appreciated that the present invention is not limited to the above embodiments, the above embodiments and description only describe
The principle of the present invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these
Changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and
Its equivalent thereof.
Claims (8)
1. a kind of nothing left dimension box girder assembling method, steel box-girder includes a top plate, the bottom plate for cooperating and being distributed up and down,
Two groups of lateral and column distribution diaphragm plates, and between two groups of diaphragm plates and two groups of diaphragm plate sides are additionally provided between top plate and bottom plate
Portion is respectively equipped with median ventral plate and coxostermum, and the outer upper end for being bounded on each side web, which is also symmetrically arranged with, chooses arm beam, and chooses the outer of arm beam
Side be additionally provided be fixedly connected with top plate choose arm web, it is characterised in that: nothing left dimension box girder assembling method use upright method of hull section construction, with
Assembled moulding bed is cover tire, and using diaphragm plate as the inner tube of a tyre, each plate unit is in place by longitudinal and transverse baseline, is aided with and reinforces facility to ensure precision
And safety.
2. nothing left dimension box girder assembling method according to claim 1, it is characterised in that: the nothing left dimension box girder assembling
Method, the specific steps are as follows:
Step S1: positioning plate unit: bottom board unit is placed on assembled moulding bed, determines its horizontal, vertical baseline on mark tower
The positioning of bit line Accurate align controls the center between adjacent segment away from in the registration ± 1mm with bridge center line, completes bottom plate
It is assembled；
Step S2: group weldering web unit, tabula plate unit: longitudinal with segment bottom laterally on the basis of the position line on mark tower
On the basis of the horizontal baseline of plate reference edge, side diaphragm plate → median ventral plate → another side diaphragm plate → two coxostermums are successively assembled, it is assembled
After, complete the welding of web and bottom plate, diaphragm plate and bottom plate；
Step S3: it assembles intermediate top plate unit: assembling intermediate top plate unit, when assembling guarantees between top plate, web and diaphragm plate
Positioning accuracy ± 1mm in, and with level control 0 ~+2mm of box height in；
Step S4: arm beam, side top plate unit are chosen in assembling, welding casing: arm beam is chosen in the weldering of scribing line group, then assembles both sides top plate list
Member, butt weld between first welding top plate, then welding top plate and diaphragm plate, web, choose weld seam between arm web；
Step S5: total spell is detected and disintegrates after the completion.
3. nothing left dimension box girder assembling method according to claim 1 or 2, it is characterised in that: the assembly moulding bed is being made
When making, it is linear to make moulding bed assembly according to the given steel box-girder manufacturing line shape of design, and considers that steel box-girder is shunk and again by welding
Camber appropriate is laterally arranged in moulding bed in the influence of power and the deformation occurred, and moulding bed basis must have enough bearing capacities, really
Enough rigidity will be had by protecting sedimentation≤1mm, moulding bed in use, avoid deforming in use；And it is set on moulding bed
Longitudinal and transverse baseline and datum mark are set, to control position and the height of beam section, it is ensured that each portion's size and facade are linear.
4. nothing left dimension box girder assembling method according to claim 2, it is characterised in that: the detection packet in the step S5
Include longitudinal linear detection, segment distortion detects, the matching precision detection of the detection of steel box-girder beam length and port between beam section.
5. nothing left dimension box girder assembling method according to claim 4, it is characterised in that: the linear detection in longitudinal direction, with
Subject to the theoretical elevation of at longitudinal centre line and edge, each segment both ends monitoring point three-dimensional coordinate is measured.
6. nothing left dimension box girder assembling method according to claim 4, it is characterised in that: the segment distortion detection is led to
It crosses and acquires each segment both ends monitoring point three-dimensional coordinate, judge each segment level state and distorting event.
7. nothing left dimension box girder assembling method according to claim 4, it is characterised in that: the steel box-girder beam length detection,
Each segmental length and accumulation length are measured on the basis of the horizontal baseline in each segment.
8. nothing left dimension box girder assembling method according to claim 4, it is characterised in that: the matching of port between the beam section
Accuracy detection detects the steel plate unfitness of butt joint and longitudinal stiffener merging precision of steel box-girder interface, to beyond acceptance criteria requirement
Position make amendment；Determine that steel box-girder matches the surplus cutting data of cut end according to measurement controlling computer correction result simultaneously,
Ensure that welded gaps of the steel box-girder when section assembling and bridge location are set up are suitable, welding quality is effectively ensured.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811139994 | 2018-09-28 | ||
| CN201811139994X | 2018-09-28 |
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| CN109653098A true CN109653098A (en) | 2019-04-19 |
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| CN201811603504.7A Pending CN109653098A (en) | 2018-09-28 | 2018-12-26 | A kind of nothing left dimension box girder assembling method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111254835A (en) * | 2020-02-18 | 2020-06-09 | 中交路桥建设有限公司 | Continuous matching construction method for steel box girder segments in factory |
| CN112496590A (en) * | 2020-12-31 | 2021-03-16 | 江苏京沪重工有限公司 | Cantilever type steel box girder manufacturing process |
| CN112900266A (en) * | 2021-01-07 | 2021-06-04 | 中铁大桥局集团第四工程有限公司 | Steel truss girder splicing linear control method |
| CN113789729A (en) * | 2021-10-13 | 2021-12-14 | 南通华川交通装备有限责任公司 | Road and bridge steel box girder assembling construction method |
| CN114043171A (en) * | 2021-11-12 | 2022-02-15 | 中铁山桥集团有限公司 | Method for manufacturing steel anchor box of curve cable tower |
| CN114211212A (en) * | 2022-01-19 | 2022-03-22 | 杭州萧山交通建设管理有限公司 | Manufacturing and construction method of large-section steel box girder |
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| CN105113410A (en) * | 2015-05-06 | 2015-12-02 | 浙江东南网架股份有限公司 | Support moulding bed and linear forming method for setting up road steel bridge using same |
| CN108049302A (en) * | 2017-11-28 | 2018-05-18 | 江苏中铁山桥重工有限公司 | A kind of manufacturing method of full welding steel case and full bolt truss combined bridge lower edge steel box-girder |
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| CN203700931U (en) * | 2013-12-04 | 2014-07-09 | 中铁宝桥集团有限公司 | Novel steel box beam top plate unit structure |
| CN105040567A (en) * | 2015-05-06 | 2015-11-11 | 浙江东南网架股份有限公司 | Interchange steel bridge and manufacture method thereof |
| CN105113410A (en) * | 2015-05-06 | 2015-12-02 | 浙江东南网架股份有限公司 | Support moulding bed and linear forming method for setting up road steel bridge using same |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111254835A (en) * | 2020-02-18 | 2020-06-09 | 中交路桥建设有限公司 | Continuous matching construction method for steel box girder segments in factory |
| CN112496590A (en) * | 2020-12-31 | 2021-03-16 | 江苏京沪重工有限公司 | Cantilever type steel box girder manufacturing process |
| CN112900266A (en) * | 2021-01-07 | 2021-06-04 | 中铁大桥局集团第四工程有限公司 | Steel truss girder splicing linear control method |
| CN112900266B (en) * | 2021-01-07 | 2022-12-27 | 中铁大桥局集团第四工程有限公司 | Steel truss girder splicing linear control method |
| CN113789729A (en) * | 2021-10-13 | 2021-12-14 | 南通华川交通装备有限责任公司 | Road and bridge steel box girder assembling construction method |
| CN114043171A (en) * | 2021-11-12 | 2022-02-15 | 中铁山桥集团有限公司 | Method for manufacturing steel anchor box of curve cable tower |
| CN114043171B (en) * | 2021-11-12 | 2024-03-01 | 中铁山桥集团有限公司 | Manufacturing method of curve cable tower steel anchor box |
| CN114211212A (en) * | 2022-01-19 | 2022-03-22 | 杭州萧山交通建设管理有限公司 | Manufacturing and construction method of large-section steel box girder |
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Application publication date: 20190419 |