CN109570708A - A kind of orthotropic steel bridge deck U rib K-type connector complex welding method - Google Patents
A kind of orthotropic steel bridge deck U rib K-type connector complex welding method Download PDFInfo
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- CN109570708A CN109570708A CN201811356622.2A CN201811356622A CN109570708A CN 109570708 A CN109570708 A CN 109570708A CN 201811356622 A CN201811356622 A CN 201811356622A CN 109570708 A CN109570708 A CN 109570708A
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- rib
- welding
- groove
- steel bridge
- bridge deck
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/18—Submerged-arc welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/235—Preliminary treatment
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a kind of orthotropic steel bridge deck U rib K-type connector complex welding methods, comprising the following steps: U rib retaining wall on slope: processing two long side grooves of U rib, so that U rib has inside groove and outside groove, die mould after the completion of retaining wall on slope；The assembling of U rib is located on floorings, there are assembly clearances between U rib and panel；Groove uses gas shielded arc welding on the inside of U rib；Orthotropic plate is placed on reversely deformed jig frame, starting pressing device carries out fixing and reversible deformation arch camber to floorings, overturns reversely deformed jig frame after compression；Groove uses Lincoln weld on the outside of U rib；Reversely deformed jig frame is overturn, the welding of the outside groove weld of another side of U rib is completed.The advantages that retaining wall on slope of the present invention is succinct, makes U rib and panel weld seam reach 100% full penetration without back chipping, and welding fabrication is beautiful, and Weld Performance is reliable, weldquality is stable, welding deformation is small, high production efficiency.
Description
Technical field
The present invention relates to bridge manufacturing fields, in particular to one of bridge manufacturing field orthotropic steel bridge deck U rib K
Type joint complex welding method.
Background technique
With the extensive use of orthotropic steel bridge deck, the fatigue problem of large span, heavily loaded Steel Bridge during operation
Cause extensive concern in the industry.The emphasis researched and developed at present is that the fatigue problem of orthotropic steel bridge deck panel is studied carefully, and for this problem, is adopted
One of method are as follows: U rib and Steel Bridge Deck weld seam are designed using full penetration, and the fatigue for extending orthotropic steel bridge deck uses the longevity
Life.
Big, light weight, the features such as manufacture is quick and easy for installation, are numerous with its distinctive rigidity for Steel Bridge orthotropic plate
Design uses, and a steel bridge orthotropic plate U rib weld seam linear meter is being actually used from dozens of kilometres to several hundred kilometers
In the process, how to reduce orthotropic plate welding deformation and orthopedic workload while obtaining excellent U rib weld seam, improve life
Manufacture efficiency is produced, reducing welding material expenditure becomes new problem, continues to solve.
Summary of the invention
Goal of the invention: the present invention provides a kind of Steel Bridge U rib plate block complete penetration welding method, and solving current U rib can not
The problem of realizing full penetration.
Technical solution: a kind of orthotropic steel bridge deck U rib K-type connector complex welding method of the present invention, including with
Lower step: (1) U rib retaining wall on slope: processing two long side grooves of U rib, so that U rib has inside groove and outside groove, groove
Die mould after processing is completed；(2) assembling of U rib is located on floorings, there are assembly clearances between U rib and panel；(3) in U rib
Side slope mouth completes the welding of inside groove weld using gas shielded arc welding；(4) orthotropic plate is placed on reversely deformed jig frame,
Starting pressing device carries out arch camber 88-92mm among fixing and reversible deformation plate unit to floorings, overturns reversible deformation tire after compression
Frame；(5) groove uses Lincoln weld on the outside of U rib, completes the welding of outside groove weld；(6) reversely deformed jig frame is overturn, is completed
The welding of the outside groove weld of another side of U rib.
Have in step (1) in the present invention, between the inside groove and outside groove parallel with floorings upper surface
Root face.
Further, the intermediate point of the root face deviates the intermediate point of U rib side, close to U rib outer side edges.
The inside bevel angle of U rib is greater than the outside bevel angle in step (1), as long as U rib inside processing space-time
Between it is smaller, when bevel angle is larger on the inside of U rib, be convenient for weld job.
In order to guarantee that inside special welding machine welding wire can be directed at the root of weld, and 0.5-1mm welding penetration is provided, while outer
It can guarantee good weld appearance molding after the welding of side single track, the inside bevel angle is 60-64 °；The outside groove 43-
47°。
In step (2), the assembly clearance is not more than 1mm, and further, assembly clearance is not more than 0.5mm.
In order to guarantee the quality of weld seam, the above-mentioned root face length is 1-2mm, and root face in the range, can be to avoid
Inside is penetrated when welding.
In step (3), the gas shielded arc welding is that welding material is solid welding wireUse gas for richness
Argon gas, speed of welding 300-340mm/min.
In step (5), the Lincoln weld is that welding material is welding wire for submerged-arc weldingSolder flux is SJ101q,
Speed of welding v is 450-500mm/min.
The utility model has the advantages that (1) present invention design two-sided welding groove, reduce because U rib outside weld welding capacity it is larger caused by it is larger
Welding deformation is realized that U rib plate unit full penetration is not necessarily to back chipping, and can be realized and be reprocessed with root defect；(2) present invention uses
The welding method that weldering is combined with submerged-arc welding outside weld in gas shielded arc welding, the U rib full penetration of realization；(3) present invention is inside and outside
Side groove weld is one of molding, and welding process is stable, weld appearance beautiful appearance and easy to operate is easily achieved；(4) originally
Lincoln weld welding capacity is relatively small on the outside of invention weld seam, reversely deformed jig frame is used when welding, welding deformation is controllable, postwelding list
Element plane degree is preferable.
Detailed description of the invention
Fig. 1 is U rib divided edge structure schematic diagram of the present invention；
Fig. 2 is gas shield welding schematic diagram on the inside of U rib of the present invention；
Fig. 3 is submerged-arc welding schematic diagram on the outside of U rib of the present invention；
Fig. 4 is reversely deformed jig frame schematic diagram of the present invention；
Fig. 5 is U rib plate straightness machining sketch chart of the present invention；
Fig. 6 is U rib plate side retaining wall on slope schematic diagram of the present invention.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and detailed description.
Embodiment 1: as seen in figs. 5-6, having 4 pairs of U rib plate straight flanges using milling straight knife and process, guarantee U rib plate straightness,
Double groove processing is then carried out to 1 two long sides of U rib plate using milling cutter 5, the groove of the U rib plate after processing is as shown in Figure 1, U
Rib groove is divided into inside groove 11, outside groove 12 and root face 13, in the present embodiment, when the thickness h of U rib is 8mm, in order to guarantee
Inside special welding machine welding wire can be directed at the root of weld, and provide 0.5-1mm welding penetration, and processing inside groove depth h1 is
2mm, height d1 are 4mm, and inside retaining wall on slope angle is 62 °；In order to guarantee that appearance of weld is good after the single track welding of outside, simultaneously
Can be by 8mmU rib full penetration, processing outside groove depth h2 is 5mm, height d2 is 5mm, and outside retaining wall on slope angle is 45 °,
Blunt edge size p is 1mm, die mould after the completion of inside groove and outside retaining wall on slope；Then use U rib apparatus automatization assembling by U
Rib assembling is located on floorings, and assembly clearance controls within 0.5mm, and allowing local assembly clearance is 1.0mm.
As shown in Fig. 2, completing the welding of inside groove weld together using U-shaped interior soldering equipment, specific welding method is gas
Body protection weldering, welding material is solid welding wireUsing argon-rich gas, it is 4:1 that the group of gas, which becomes volume ratio,
Argon gas (Ar) and carbon dioxide (CO2), welding parameter: I 300A, U 34V, speed of welding v are 300-340mm/min, weldering
Connecing position is transverse presentation.
As shown in figure 3, according to the reversible deformation plate on the traversing adjustment reversely deformed jig frame 3 of 2 width of floorings, by orthotropic plate
It places on reversely deformed jig frame 3 on the berth, starting pressing device carries out arch camber 90 among fixing and reversible deformation plate unit to floorings 2
Reversely deformed jig frame 3 is overturn 35 ° after compression by ± 2mm, using groove weld on the outside of automatic submerged arc welding device welding U rib, welds material
Material is welding wire for submerged-arc weldingMatch solder flux SJ101q；, welding parameter: I 580A, U 30V, speed of welding v are
450-500mm/min, welding position are accommodation；Reversely deformed jig frame 3 is overturn, flip angle is 70 °, using automatic submerged arc welding device
Weld the another side groove weld of U rib.
As shown in figure 4, the reversely deformed jig frame 3 that is used in the present invention mainly include reversible deformation board slot 31, reversible deformation plate 32,
Turnover device 33, pressing device 34 and moulding bed 35, the device can fix U rib, convert the angle of U rib, improve welding efficiency.
Orthotropic plate U rib of the invention uses double groove, and U rib molding equipment processes at one time, K-type groove processing
Succinctly, using the combined welding method of inside and outside weldering, the welding of inside gas shielded arc welding, outside uses the phase of submerged-arc welding without back chipping
In conjunction with welding method, to guarantee that the weld seam of U rib and steel bridge deck reaches 100% full penetration, welding quality stable, weld seam
The advantages that beautiful appearance, Weld Performance are reliable, welding deformation is small, high production efficiency.
Claims (9)
1. a kind of orthotropic steel bridge deck U rib K-type connector complex welding method, which comprises the following steps:
(1) U rib retaining wall on slope: processing two long side grooves of U rib, groove and outside groove on the inside of formation, after the completion of retaining wall on slope
Die mould；
(2) assembling of U rib is located on floorings, there are assembly clearances between U rib and panel；
(3) U rib inside groove completes the welding of inside groove weld using gas shielded arc welding；
(4) orthotropic plate is placed on reversely deformed jig frame, starting pressing device carries out fixing and reversible deformation plate to floorings
Arch camber 88-92mm among unit overturns reversely deformed jig frame after compression；
(5) groove uses Lincoln weld on the outside of U rib, completes the welding of outside groove weld；
(6) reversely deformed jig frame is overturn, the welding of the outside groove weld of another side of U rib is completed.
2. orthotropic steel bridge deck U rib K-type connector complex welding method according to claim 1, it is characterised in that step
(1) in, there is the root face parallel with floorings upper surface between the inside groove and outside groove.
3. orthotropic steel bridge deck U rib K-type connector complex welding method according to claim 2, which is characterized in that described
The intermediate point of root face deviates the intermediate point of U rib side, close to U rib outer side edges.
4. orthotropic steel bridge deck U rib K-type connector complex welding method according to claim 1, it is characterised in that step
(1) in, the inside bevel angle is greater than the outside bevel angle.
5. orthotropic steel bridge deck U rib K-type connector complex welding method according to claim 1, it is characterised in that step
(1) in, the inside bevel angle is 60-64 °；Described 43-47 ° of outside groove.
6. orthotropic steel bridge deck U rib K-type connector complex welding method according to claim 1, it is characterised in that step
(2) in, the assembly clearance is not more than 1mm.
7. orthotropic steel bridge deck U rib K-type connector complex welding method according to claim 2, which is characterized in that described
Root face length is 1-2mm.
8. orthotropic steel bridge deck U rib K-type connector complex welding method according to claim 1, it is characterised in that step
(3) in, the gas shielded arc welding is that welding material is solid welding wireUse gas for argon-rich gas, welding speed
Degree is 300-340mm/min.
9. orthotropic steel bridge deck U rib K-type connector complex welding method according to claim 1, it is characterised in that step
(5) in, the Lincoln weld is that welding material is welding wire for submerged-arc weldingSolder flux is SJ101q, and speed of welding v is
450-500mm/min。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811356622.2A CN109570708B (en) | 2018-11-15 | 2018-11-15 | Compound welding method for orthotropic steel bridge deck U rib K-shaped joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811356622.2A CN109570708B (en) | 2018-11-15 | 2018-11-15 | Compound welding method for orthotropic steel bridge deck U rib K-shaped joint |
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| Publication Number | Publication Date |
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| CN109570708A true CN109570708A (en) | 2019-04-05 |
| CN109570708B CN109570708B (en) | 2021-07-30 |
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| CN201811356622.2A Active CN109570708B (en) | 2018-11-15 | 2018-11-15 | Compound welding method for orthotropic steel bridge deck U rib K-shaped joint |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111531245A (en) * | 2020-06-12 | 2020-08-14 | 山西潇河建筑产业有限公司 | Positioning platform for assembling bridge U rib and plate rib |
| CN112045284A (en) * | 2020-06-23 | 2020-12-08 | 中铁宝桥集团有限公司 | Full-penetration internal and external synchronous submerged arc welding method for U rib plate unit |
| CN115430887A (en) * | 2021-06-04 | 2022-12-06 | 南通振华重型装备制造有限公司 | Full penetration welding method for 16mmU rib with hot-rolled variable cross section of extra-large bridge |
| CN117182369A (en) * | 2023-07-18 | 2023-12-08 | 中建五洲工程装备有限公司 | Welding and annealing deformation control method for steel bridge deck unit |
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| CN102275026A (en) * | 2010-06-08 | 2011-12-14 | 上海振华重工(集团)股份有限公司 | Welding process for U-shaped rib of steel bridge panel |
| CN106180983A (en) * | 2016-08-19 | 2016-12-07 | 高兴 | A kind of welding method of U rib |
| CN106270956A (en) * | 2016-09-09 | 2017-01-04 | 中铁宝桥（扬州）有限公司 | A kind of orthotropic plate U angle of rib weld seam transverse presentation symmetry mariages complex welding method |
| CN106312247A (en) * | 2016-10-19 | 2017-01-11 | 武船重型工程股份有限公司 | Bilateral welding method for fillet seams of U rib and orthotropic steel deck plate |
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| CN107598330A (en) * | 2017-10-26 | 2018-01-19 | 上海振华重工(集团)股份有限公司 | U rib complete penetration welding methods |
| CN108436320A (en) * | 2018-05-28 | 2018-08-24 | 湖北天图桥梁技术研究有限公司 | A kind of U ribs and orthotropic plate unit and its welding manufacture method |
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| CN102275026A (en) * | 2010-06-08 | 2011-12-14 | 上海振华重工(集团)股份有限公司 | Welding process for U-shaped rib of steel bridge panel |
| CN205998094U (en) * | 2016-08-09 | 2017-03-08 | 中交第二公路勘察设计研究院有限公司 | A kind of two-sided welding structure of U rib of putting more energy into of orthotropic stiffener |
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| CN106270956A (en) * | 2016-09-09 | 2017-01-04 | 中铁宝桥（扬州）有限公司 | A kind of orthotropic plate U angle of rib weld seam transverse presentation symmetry mariages complex welding method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111531245A (en) * | 2020-06-12 | 2020-08-14 | 山西潇河建筑产业有限公司 | Positioning platform for assembling bridge U rib and plate rib |
| CN112045284A (en) * | 2020-06-23 | 2020-12-08 | 中铁宝桥集团有限公司 | Full-penetration internal and external synchronous submerged arc welding method for U rib plate unit |
| CN115430887A (en) * | 2021-06-04 | 2022-12-06 | 南通振华重型装备制造有限公司 | Full penetration welding method for 16mmU rib with hot-rolled variable cross section of extra-large bridge |
| CN117182369A (en) * | 2023-07-18 | 2023-12-08 | 中建五洲工程装备有限公司 | Welding and annealing deformation control method for steel bridge deck unit |
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| CN109570708B (en) | 2021-07-30 |
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