CN105328400A - Manufacturing method of steel structure box girder/column - Google Patents
Manufacturing method of steel structure box girder/column Download PDFInfo
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- CN105328400A CN105328400A CN201410393968.5A CN201410393968A CN105328400A CN 105328400 A CN105328400 A CN 105328400A CN 201410393968 A CN201410393968 A CN 201410393968A CN 105328400 A CN105328400 A CN 105328400A
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Abstract
The invention relates to a steel structure box girder/column. A method comprises the following steps that firstly, numerical control webs and partition plates are blanked according to the size, and grooves are machined; secondly, liner plates are assembled on the back faces of the grooves of the webs and the back faces of the grooves of the partition plates in a spot welding manner; thirdly, a U shape is formed by one cover plate and two webs on a box assembling machine; fourthly, the partition plates are placed in the formed U-shaped groove, and the three edges of the partition plates are welded; and fifthly, the cover plate is arranged, and connecting welding lines of the cover plate are welded. According to the method, the problem that the box girder and column cannot be produced due to the fact that no special electroslag welding device exists is solved, and more importantly, the problem that when a multi-layer house is built, the thickness of wall plates of the girder and the column is lower than 18 mm, and welding is not easy through electroslag welding is solved. By means of the method, the machining procedure is simplified, the quality of components and the manufacturing efficiency are greatly improved, and the steel structure box girder/column has very high economic value and social value, and is easy to apply and popularize.
Description
Technical field
The present invention relates to a kind of preparation method of box beam/column with steel structure, belong to the manufacturing technology field of steel construction.
Background technology
As everyone knows, existing box beam/column with steel structure is made up of two cover plates and two blocks of webs, four road main welds of these four pieces of plate joints need segment design to become complete penetraction and fusion in welding groove (CP) and local through welding groove (PP) two kinds of forms by intensity, wherein, diaphragm plate is provided with in steel construction box beam/post, main diaphragm plate and web adopt full penetration, and between common diaphragm plate with lid web, three are welded.
At present, the manufacture craft of box beam/column with steel structure is roughly as follows: first adopt NC flame cutting machine coupled columns plate to cut, to cover plate, web, dividing plate and baffle plate carry out blanking, and to web and dividing plate bevel, bevel method is carbon arc air gouging cutting V-type or K type groove, dividing plate is the form that surrounding is opened single groove and added baffle plate, due to baffle plate and web, the gap of dividing plate is all less, the surface of baffle plate and web and baffle contacts all needs through processing, and baffle plate thicker, straightening correction is carried out after blanking completes, for protection shaft is accurately assembled, also need preparation assembling fetal membrane, its assembling sequence is: be first benchmark with upper cover plate, then the assembly line of dividing plate and web is released, carry out U-shaped group to stand, finally assemble cover plate and weld, the main body welding of steel construction box beam/post adopts Lincoln weld, dividing plate welding adopts electric welding machine manual welding, the method of the twice weld seam electroslag welding between web with base plate is welded, welding arranges striking block and blow-out block.Carry out straightening rectification after box column has welded, rear termination milling machine carries out termination cutting.Because electroslag welding needs to surround sleeve-shaped by four limit wallboards of two pieces of baffle plates and dividing plate and box beam/pillar, and the clearance requirement that sleeve makes is very strict, and need to use two pieces of thicker baffle plates, also need production efficiency low and the electroslag welding equipment of costliness and special consumable nozzle, easy schedule delays, not only increase the manufacturing cost of product, difficulty is comparatively large, makes the efficiency of making lower.In addition, when the wall panel thickness of beam column is at below 18mm, current electroslag welding is adopted not easily to weld.
Summary of the invention
The object of this invention is to provide a kind of preparation method of box beam/column with steel structure, to make simple for production, saving material, enhance productivity.
For achieving the above object, the present invention adopts following technical scheme: a kind of preparation method of box beam/column with steel structure, comprises the following steps:
(1) numerical control web, baffle dimensions blanking process groove;
(2) at web and dividing plate groove back side assembling and spot welding liner plate;
(3) stand on machine in box-shaped group one piece of cover plate and two blocks of webs are formed U-shaped;
(4) dividing plate is placed in the U-lag of composition, and three limits of welding diaphragm;
(5) cover plate is loaded onto, the attachment weld between welded cover plate.In step (2), described liner plate and mother metal need closely connected.
For reduce cover plate fishplate bar weld seam quantity or when this close together of dividing plate group, first assembly welding first piece in U-lag is needed to organize the dividing plate stood, push again after the first block welding is good second piece, the 3rd piece of assembling etc. successively assembly welding good after, then assemble cover plate and attachment weld between welded cover plate.
Adopt semi-automatic carbon dioxide gas shielded arc welding or the attachment weld between manual electric arc welding welding dividing plate and cover plate.
Four the described main welds two arc carbon dioxide automatic welding of two mariages welding of bottoming simultaneously twice main weld in the same way, equally with the cover welding simultaneously in the same way of two mariages twin arc submerged arc weldings.
The preparation method of box beam/column with steel structure provided by the invention, in the process made, at the groove back side assembling and spot welding liner plate of web and dividing plate, namely two pieces that need when each weld bond all saves electroslag welding thicker baffle plates, do not need to process the contact surface between baffle plate and web and between baffle plate and dividing plate simultaneously, make to manufacture more simple and convenient, production efficiency is higher, and dividing plate adopts bright mouth to weld, make first-time qualification rate higher, production cost is lower.In addition, electroslag welding welding is instead of with the welding of CO2 gas shielded arc welding, eliminate the low and expensive electroslag welding equipment of production efficiency, drilling equipment and welding consumable nozzle, not only save the expense of purchasing expensive equipment, reduce production cost, cost reduces about 30%, also eliminates the place shared by these equipment; In addition, simple for production, technology is simple, simplifies manufacturing procedure, greatly improves component quality and manufacture efficiency, make box beam/column with steel structure more be convenient to manufacture; Also solve simultaneously box beam/pillar wall thinner time be difficult to use electroslag welding welding a difficult problem, substantially increase the value of the promotion and application in manufacture of steel structure field.Method of the present invention solves the difficult problem that box-shaped beam column cannot be produced when not having special special electroslag soldering equipment, the more important thing is when solving building tier building, the difficult problem that the wall panel thickness of beam column adopts electroslag welding not easily to weld at below 18mm.Adopt method of the present invention to simplify manufacturing procedure, greatly improve component quality and manufacture efficiency, there is good economic worth and social value, be easy to apply.
Accompanying drawing explanation
Fig. 1 is construction steel structure box beam/pillar of the present invention and dividing plate joint form schematic diagram;
Fig. 2 is structural representation after construction steel structure box beam/pillar internal partition of the present invention assembling liner plate;
Fig. 3 is structural representation after construction steel structure box beam/pillar web assembling liner plate of the present invention;
Fig. 4 is construction steel structure box beam/pillar strap joint form schematic diagram of the present invention;
Fig. 5 is construction steel structure box beam/pillar fabrication processing schematic diagram of the present invention.
1 cover plate in figure, 2 webs, 3 dividing plates, 4 main weld liner plates, 5 dividing plate liner plates, 6 cover plate splice seams, 7 technique dividing plates.
Detailed description of the invention
Wherein, dividing plate group stand be by blanking finished edge after dividing plate install the parts shown in liner plate composition diagram 2 additional.
Web group stand be by blanking finished edge after web install the parts shown in liner plate composition diagram 3 additional.
Cover plate sectionally smooth join, be when dividing plate group and next organize have again a segment distance apart time, apart from first group of dividing plate 200mm place cover plate disconnection, to facilitate the welding to dividing plate, the joint process of cover plate gap is as shown in Figure 4.
As shown in Figure 5, its concrete fabrication processing is the preparation method of box beam/column with steel structure of the present invention:
(1) computerized control cover plate, web and liner plate thereof, dividing plate and liner plate thereof size carry out blanking, simultaneously by the both sides bevel of web, four limit bevels of dividing plate, and in the centre-drilling hole of dividing plate;
(2) the assembling and spot welding liner plate respectively at the groove back side of web and dividing plate, reserved certain gap between groove and groove, between liner plate and web and all need closely connected between liner plate and dividing plate;
(3) stand on machine in box-shaped group one piece of base plate and two blocks of webs are formed U-shaped, and with the welding of bottoming simultaneously in the same way of the two arc CO2 automatic welding of two mariages, first, second main weld can be formed between base plate and two blocks of webs;
(4) dividing plate is placed in U-lag, with three limits of semi-automatic CO2 gas shielded arc welding welding diaphragm; Then box-shaped group vertical (box-shaped group founds machine) is carried out, with the another side of semi-automatic CO2 gas shielded arc welding welding diaphragm; (5) when dividing plate close together or there is the intensive dividing plate of polylith, need first to assemble in U-lag that first piece of group stood
Dividing plate, after welding is good, then covers cover plate; The dividing plate that assembling group successively like this is stood, until the baffle assembly of this section has welded;
(6) cover plate is loaded onto; cover plate abutment joint is welded; with the two automatic CO2 gas shielded arc welding of arc of mariages to main weld backing welding; attachment weld between cover welding cover plate with two blocks of webs is welded in the same way with two mariages twin arc submerged arc weldings simultaneously; after the assay was approved, carry out straightening rectification, rear termination milling machine carries out termination cutting; then through ball blast, after spraying paint.
It should be noted last that: above embodiment is only in order to explanation, and unrestricted technical scheme of the present invention, although with reference to above-described embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, and not departing from any modification or partial replacement of the spirit and scope of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (3)
1. a preparation method for box beam/column with steel structure, is characterized in that: comprise the following steps:
(1) numerical control web, baffle dimensions blanking process groove;
(2) assembling and spot welding liner plate is distinguished at the groove back side of the groove back side of web and dividing plate;
(3) one piece of base plate and two blocks of webs are formed U-shaped, and with the welding of bottoming simultaneously in the same way of the two arc CO2 automatic welding of two mariages, first, second main weld can be formed between base plate and two blocks of webs;
(4) dividing plate is placed in U-lag, welds three limits of dividing plate with semi-automatic CO2 gas shielded arc welding or manual electric arc welding; Then carry out box-shaped group to stand, with the another side of semi-automatic CO2 gas shielded arc welding welding diaphragm;
(5) when dividing plate close together or there is the intensive dividing plate of polylith, in U-lag, first assemble first piece organize the dividing plate stand, weld after getting well, then cover cover plate; The dividing plate that assembling group successively like this is stood, until the baffle assembly of this section has welded;
(6) cover plate is loaded onto, cover plate abutment joint is welded, with the two automatic CO2 gas shielded arc welding of arc of mariages to main weld backing welding, attachment weld between cover welding cover plate with two blocks of webs is welded in the same way with two mariages twin arc submerged arc weldings simultaneously, after the assay was approved, carry out straightening rectification, rear termination milling machine carries out termination cutting, then through ball blast, after spraying paint; Wherein, dividing plate adopts bright mouth to weld.
2. the preparation method of box beam/column with steel structure according to claim 1, is characterized in that: in step (2), and described liner plate and mother metal need closely connected.
3. the preparation method of box beam/column with steel structure according to claim 1, it is characterized in that: when dividing plate close together or there is the intensive dividing plate of polylith, first assembly welding first piece in U-lag is needed to organize the dividing plate stood, push again after the first block welding is good second piece, the 3rd piece of assembling etc. successively assembly welding good after, then assemble cover plate and attachment weld between welded cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410393968.5A CN105328400A (en) | 2014-08-12 | 2014-08-12 | Manufacturing method of steel structure box girder/column |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410393968.5A CN105328400A (en) | 2014-08-12 | 2014-08-12 | Manufacturing method of steel structure box girder/column |
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| CN105328400A true CN105328400A (en) | 2016-02-17 |
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| CN201410393968.5A Pending CN105328400A (en) | 2014-08-12 | 2014-08-12 | Manufacturing method of steel structure box girder/column |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106334903A (en) * | 2016-08-30 | 2017-01-18 | 海盐普源电力科技有限公司 | Production method of power transmitter shell |
| CN107378203A (en) * | 2017-07-03 | 2017-11-24 | 中国华冶科工集团有限公司 | The welding method of box column |
| CN109202334A (en) * | 2018-09-30 | 2019-01-15 | 陕西伟宏钢结构有限公司 | A kind of electroslag welding anti-overflow box-structure and its processing method |
| CN112404785A (en) * | 2020-11-10 | 2021-02-26 | 上海宝冶集团有限公司 | Q390B thick plate box type component welding quality control method |
| CN114293455A (en) * | 2021-10-11 | 2022-04-08 | 郑孝群 | One-pull road bridge and its manufacture and construction |
| CN114393294A (en) * | 2022-02-24 | 2022-04-26 | 浙江大东吴建筑科技有限公司 | Electroslag welding plate and method for preventing slag leakage caused by assembly gap of electroslag welding plate |
| CN115302045A (en) * | 2022-07-28 | 2022-11-08 | 中冶天工（天津）装备制造有限公司 | Assembling method for box-type structure with unequal plate thickness |
-
2014
- 2014-08-12 CN CN201410393968.5A patent/CN105328400A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106334903A (en) * | 2016-08-30 | 2017-01-18 | 海盐普源电力科技有限公司 | Production method of power transmitter shell |
| CN106334903B (en) * | 2016-08-30 | 2018-06-22 | 海盐普源电力科技有限公司 | A kind of production method of power transducer housing |
| CN107378203A (en) * | 2017-07-03 | 2017-11-24 | 中国华冶科工集团有限公司 | The welding method of box column |
| CN109202334A (en) * | 2018-09-30 | 2019-01-15 | 陕西伟宏钢结构有限公司 | A kind of electroslag welding anti-overflow box-structure and its processing method |
| CN112404785A (en) * | 2020-11-10 | 2021-02-26 | 上海宝冶集团有限公司 | Q390B thick plate box type component welding quality control method |
| CN114293455A (en) * | 2021-10-11 | 2022-04-08 | 郑孝群 | One-pull road bridge and its manufacture and construction |
| CN114293455B (en) * | 2021-10-11 | 2024-04-05 | 郑孝群 | One-pull road bridge and its manufacture and construction |
| CN114393294A (en) * | 2022-02-24 | 2022-04-26 | 浙江大东吴建筑科技有限公司 | Electroslag welding plate and method for preventing slag leakage caused by assembly gap of electroslag welding plate |
| CN115302045A (en) * | 2022-07-28 | 2022-11-08 | 中冶天工（天津）装备制造有限公司 | Assembling method for box-type structure with unequal plate thickness |
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Application publication date: 20160217 |