CN102717112A - Large plate girder laminated surface perforation method - Google Patents
Large plate girder laminated surface perforation method Download PDFInfo
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- CN102717112A CN102717112A CN2011100801504A CN201110080150A CN102717112A CN 102717112 A CN102717112 A CN 102717112A CN 2011100801504 A CN2011100801504 A CN 2011100801504A CN 201110080150 A CN201110080150 A CN 201110080150A CN 102717112 A CN102717112 A CN 102717112A
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- Prior art keywords
- girder
- stoplog
- plate
- laminated
- drilling
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000004080 punching Methods 0.000 claims abstract description 12
- 238000005553 drilling Methods 0.000 claims abstract description 10
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 3
- 238000010030 laminating Methods 0.000 abstract 1
- 238000003754 machining Methods 0.000 abstract 1
- 238000003466 welding Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
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- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Drilling And Boring (AREA)
Abstract
The invention relates to a plate girder machining method, and in particular relates to a large plate girder perforation method. A large plate girder laminated surface perforation method comprises the following steps: step one, dividing a lower flange plate of an upper laminated girder and an upper flange plate of a lower laminated girder into five sections respectively, wherein the lengths of the corresponding parts of the upper laminated girder and the lower laminated girder are ensured to be equal; step two, putting three plates in the middle onto a numerical control drilling machine, and carrying out sleeve drilling on the upper laminated girder and the lower laminated girder; and then only drilling the plates at two ends of the lower flange of the upper laminated girder, and reserving the plates at two ends of the lower laminated girder without drilling; step three, splicing all flange plates of the upper laminated girder and the lower laminated girder; step four, laminating and assembling in advance after the upper laminated girder and the lower laminated girder are respectively welded, and aligning and fixing hole groups which are subjected to sleeve drilling in the middle; and step five, locating the position of bolt holes which are not drilled of the upper flange plate of the lower laminated girder by adopting excessive hole punching, and finally drilling. The large plate girder perforation method provided by the invention is simple and convenient, has high operation efficiency, and improves the perforation ratio obviously.
Description
Technical field
The present invention relates to the plate-girder processing method, relate in particular to a kind of method for punching of big plate-girder.
Background technology
For the making of stoplog, owing to stoplog reaches more than 20 meters, and the enormous amount of superimposed face, reach over thousands of hole most.
1. according to present appointed condition: carry out digital control hole drilling greater than the rectangular plate of 15000mm and also can't realize; The artificial boring amount of holing for more than 1500 of overlapping, efficient is too low.
2. even all disposable pull bores, owing to the inequality of being heated in the welding process is shunk, punching rate still is difficult to guarantee.
3. member ultralong overweight, even guarantee that welding metapore position is unanimous between the higher and lower levels basically, when the superimposed up and down back of stoplog since up and down the suffered gravity of stoplog inconsistent to cause amount of deflection to change uneven, the same higher punching rate of assurance that is difficult to of upright prepackage.
Summary of the invention
The present invention is intended to solve the problems of the technologies described above, and a kind of big plate-girder superposed surfaces perforation side is provided.The present invention is simple and convenient, and high efficiency significantly improves punching rate.
The present invention is achieved in that a kind of big plate-girder superposed surfaces method for punching, and it comprises the following steps:
Step 1 respectively is divided into five sections with the bottom wing listrium of last stoplog and the top flange plate of following stoplog, and the length of correspondence position stoplog up and down guarantees equal length;
Step 2, middle three board is gone up numerical control drilling machine together, and stoplog overlaps brill up and down; Only the plank at the two ends, lower flange of last stoplog is holed then, the two ends plank of following stoplog is kept and is not holed earlier;
Step 3 is all pieced together the wing plate of stoplog up and down.
Step 4 treats that up and down stoplog welds the superimposed prepackage in back respectively, hole crowd's secured in alignment that intermediate sleeve was bored:
Step 5 adopts via hole to bring the bolt hole position that the stoplog upper flange does not bore under the location, and final boring.
(upright installment state, various stressed all realized and reach stable state) carries out up and down that the cover of stoplog bores boring under the state that the present invention pre-installs, and can guarantee punching rate efficiently, increases work efficiency greatly; Simple and convenient, easy operating; Significantly improve punching rate, obviously reduce the preframed difficulty of big plate-girder.
The specific embodiment
A kind of big plate-girder superposed surfaces method for punching, it comprises the following steps:
1. with regard to the situation of material, the bottom wing listrium of last stoplog and the top flange plate of following stoplog respectively are divided into five sections, the length of correspondence position stoplog up and down guarantees equal length;
For preventing plate 1 and plate 2, plate 2 and plate 3, plate 3 and plate 4; Plate 4 produces the welding contraction when splicing with plate 5 and causes pitch-row to change; Before boring, require the low order end at plate 1, plate 2, the high order end of plate 4, plate 5 is put the welding allowance for shrinkage of 2mm, guarantees the positive 2 ~ 3mm of abutment joint two side holes spacing when promptly docking; Outermost end pitch of holes+10mm welds the outermost end pitch of holes permissible variation ± 4mm that finishes;
2. middle three board (2,3 and 4) is gone up numerical control drilling machine together, and stoplog overlaps brill up and down.Only the lower flange 1 and 5 planks of last stoplog are holed then, 1 and 5 planks of following stoplog are kept and are not holed earlier.
3. the wing plate of stoplog is all pieced together up and down.
4. treat that up and down stoplog welds the superimposed prepackage in back respectively, hole crowd's secured in alignment that intermediate sleeve was bored.
5. owing to stoplog is superimposed in place up and down, the state when reaching upright the installation adopts via hole to bring the bolt hole position that the stoplog upper flange does not bore under the location this moment, and final boring, and so very the position in accurate in locating hole guarantees punching rate.
Claims (1)
1. one kind big plate-girder superposed surfaces method for punching is characterized in that it comprises the following steps:
Step 1 respectively is divided into five sections with the bottom wing listrium of last stoplog and the top flange plate of following stoplog, and the length of correspondence position stoplog up and down guarantees equal length;
Step 2, middle three board is gone up numerical control drilling machine together, and stoplog overlaps brill up and down; Only the plank at the two ends, lower flange of last stoplog is holed then, the two ends plank of following stoplog is kept and is not holed earlier;
Step 3 is all pieced together the wing plate of stoplog up and down;
Step 4 treats that up and down stoplog welds the superimposed prepackage in back respectively, hole crowd's secured in alignment that intermediate sleeve was bored;
Step 5 adopts via hole to bring the bolt hole position that the stoplog upper flange does not bore under the location, and final boring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110080150.4A CN102717112B (en) | 2011-03-31 | 2011-03-31 | Large girder superposed surfaces method for punching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110080150.4A CN102717112B (en) | 2011-03-31 | 2011-03-31 | Large girder superposed surfaces method for punching |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102717112A true CN102717112A (en) | 2012-10-10 |
| CN102717112B CN102717112B (en) | 2016-01-20 |
Family
ID=46943055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110080150.4A Expired - Fee Related CN102717112B (en) | 2011-03-31 | 2011-03-31 | Large girder superposed surfaces method for punching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102717112B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943546A (en) * | 2012-11-26 | 2013-02-27 | 上海交通大学 | Main girder for boiler steel structure |
| CN109590675A (en) * | 2018-10-30 | 2019-04-09 | 上海建工（江苏）钢结构有限公司 | A kind of tower boiler steelframe superposed type large girder production method |
| CN110039264A (en) * | 2019-04-29 | 2019-07-23 | 上海宝冶集团有限公司 | The method for improving large-scale reburner furnace body wallboard preassembling punching rate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0006058A1 (en) * | 1978-06-01 | 1979-12-12 | R. DUFIEUX: Société Anonyme dite | Drilling unit for steel products |
| CN101135190A (en) * | 2007-09-03 | 2008-03-05 | 江苏美凯龙钢业有限公司 | Method for preparing plate assembly composite spliced beam |
| CN101934965A (en) * | 2010-07-30 | 2011-01-05 | 江南嘉捷电梯股份有限公司 | Main girder square steel splicing structure on escalator or moving pavement |
-
2011
- 2011-03-31 CN CN201110080150.4A patent/CN102717112B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0006058A1 (en) * | 1978-06-01 | 1979-12-12 | R. DUFIEUX: Société Anonyme dite | Drilling unit for steel products |
| CN101135190A (en) * | 2007-09-03 | 2008-03-05 | 江苏美凯龙钢业有限公司 | Method for preparing plate assembly composite spliced beam |
| CN101934965A (en) * | 2010-07-30 | 2011-01-05 | 江南嘉捷电梯股份有限公司 | Main girder square steel splicing structure on escalator or moving pavement |
Non-Patent Citations (2)
| Title |
|---|
| 谢忠: "嘉兴电厂２×１０００ＭＷ超临界机组叠梁制作技术", 《钢结构》 * |
| 黄耀怡等: "大跨度公铁两用钢桁梁现场整孔制作与运架技术", 《钢结构》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943546A (en) * | 2012-11-26 | 2013-02-27 | 上海交通大学 | Main girder for boiler steel structure |
| CN109590675A (en) * | 2018-10-30 | 2019-04-09 | 上海建工（江苏）钢结构有限公司 | A kind of tower boiler steelframe superposed type large girder production method |
| CN110039264A (en) * | 2019-04-29 | 2019-07-23 | 上海宝冶集团有限公司 | The method for improving large-scale reburner furnace body wallboard preassembling punching rate |
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| Publication number | Publication date |
|---|---|
| CN102717112B (en) | 2016-01-20 |
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Granted publication date: 20160120 |