CN102962558A - Method for building load-bearing H-steel - Google Patents
Method for building load-bearing H-steel Download PDFInfo
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- CN102962558A CN102962558A CN2012104577786A CN201210457778A CN102962558A CN 102962558 A CN102962558 A CN 102962558A CN 2012104577786 A CN2012104577786 A CN 2012104577786A CN 201210457778 A CN201210457778 A CN 201210457778A CN 102962558 A CN102962558 A CN 102962558A
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Abstract
The invention discloses a method for building load-bearing H-steel. The method comprises the following steps of: providing a joint way and a welding sequence, cutting a flange plate and a web plate, making edge preparation, and ensuring an initial blanking size, wherein gantry flame multi-mouth cutting is adopted in plate cutting, a half through welding form is adopted in the joint way, the H-steel is made by welding and splicing the web plate with the flange plate, and a half through welding groove form is adopted; preparing, making and positioning a required hard support, which comprises an H-steel jig, a self-made clamp and a brace to prevent deformation; and welding symmetrically and synchronously from a central position to two ends along the length direction of the H-steel. The load-bearing H-steel has the advantages of low production and manufacturing cost, simple structure, high place flexibility, convenience in manufacturing, effective guarantee of strength quality, and great reduction in cost and construction period consumption on correction after deformation.
Description
Technical field
The present invention relates to the method for construction of offshore engineering structure shaped steel, particularly a kind of method of construction of load-bearing H shaped steel.
Background technology
The structure of H shaped steel is the section bar of " H " type cross section, and certain length is arranged.It mainly is divided into hot rolling and welded type.
Present stage China's export the ocean engineering steel construction, much be American-Europeanly to design made in China.The specification of the section bar that this result who causes is exactly Chinese Industrial Standards (CIS) and design drawing and code requirement are not inconsistent, can't substitute, and negligible amounts, on the market buying less than, consider that simultaneously construction period can only take the section bar of welding manner, particularly H shaped steel.
A lot of steel construction manufacturing enterprises do not have professional H shaped steel construction hall, lack corresponding extraordinary instrument, frock, integer instrument and experienced professional integer personnel.Angular deformation, flexural deformation, particularly torsional deformation often appear in homemade welded H section steel, are difficult to correct in case form.
Summary of the invention
The present invention has overcome deficiency of the prior art, the method for construction of a kind of ocean engineering with load-bearing H shaped steel is provided, thereby reaches succinct, efficient, low consumed purpose.
In order to solve the technical problem of above-mentioned existence, realize above-mentioned purpose, the present invention adopts following technical proposals:
A kind of method of construction of load-bearing H shaped steel, its content comprises the steps:
The first step, provide a kind of joint style and welding procedure, flange plate, web cutting and edge are prepared, and guarantee initial blank size, plate cutting adopts the cutting of speaking out of turn of gantry flame, its joint style is half through welding form, and H shaped steel is spliced by web, flange plate weldering, and groove type is half through welding;
Consider that ocean engineering is load-bearing shaped steel with H shaped steel major part, for proof strength avoids adopting angle welding; The necessary gouge back chipping of while complete penetraction and fusion in welding method, heat input is larger, and web two side welds can't weld easily generation distortion simultaneously; Adopt the mode of half through welding (part through welding), can play like this proof strength, satisfy the load-bearing requirement, can prevent again distortion, improve quality;
The hard support that second step, preparation, self-control, location need comprises: H shaped steel moulding bed, self-made clamp and brace, to prevent distortion;
The 3rd goes on foot, welds simultaneously from the center to the two ends symmetry along H shaped steel length direction.
Because adopt technique scheme, the method for construction of a kind of load-bearing H shaped steel provided by the invention compared with prior art has such beneficial effect:
Manufacturing cost is cheap, simple in structure, the place is flexible, easy to make, effective proof strength quality has greatly reduced and has corrected the expense and the duration that produce after the distortion and consume.
Description of drawings
Fig. 1 is welded H section steel cross section joint form schematic diagram;
Fig. 2 supports schematic diagram firmly;
Fig. 3 is the anchor clamps schematic diagrames;
Fig. 4 is the welding procedure schematic diagram.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment the present invention is described in further detail:
A kind of method of construction of load-bearing H shaped steel, its content comprises the steps:
The first step, cutting and edge are prepared: guarantee initial blank size, plate cutting adopts the cutting of speaking out of turn of gantry flame.H shaped steel is spliced by web 7, flange plate 8 welderings, and groove type is half through welding, as shown in Figure 1.Can either satisfy load-bearing, can prevent again distortion, improve quality.
Second step, installation, location: as shown in Figure 2, H shaped steel moulding bed is placed smooth location.Tack welding H shaped steel to be welded 2(weldering meat 4 spacing 300mm), run-on tab, receipts arc plate 5, with self-made clamp 3, as shown in Figure 3, clamp up and down H shaped steel flange plate (spacing 500), spot welding bearing diagonal 6(spacing 1200).
The 3rd step, inspection relative dimensions are adjusted welding machine and relevant parameter according to WPS, adopt carbon dioxide gas arc welding, carry out simultaneously symmetrical welding from the center to two ends, and as shown in Figure 4, letter is welding sequence, and the direction of arrow is welding direction.
Finish after the above-mentioned work, the load-bearing H shaped steel that builds up is carried out magnetic powder inspection.
Facts have proved the problem that can well solve welding deformation according to above-mentioned steps, guaranteed simultaneously structural strength.
The above; only be the better specific embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, all should be encompassed within protection scope of the present invention.
Claims (1)
1. the method for construction of a load-bearing H shaped steel, it is characterized in that: its content comprises the steps:
The first step, provide a kind of joint style and welding procedure, flange plate, web cutting and edge are prepared, and guarantee initial blank size, plate cutting adopts the cutting of speaking out of turn of gantry flame, its joint style is half through welding form, and H shaped steel is spliced by web, flange plate weldering, and groove type is half through welding;
The hard support that second step, preparation, self-control, location need comprises: H shaped steel moulding bed, self-made clamp and brace, to prevent distortion;
The 3rd goes on foot, welds simultaneously from the center to the two ends symmetry along H shaped steel length direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104577786A CN102962558A (en) | 2012-11-15 | 2012-11-15 | Method for building load-bearing H-steel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012104577786A CN102962558A (en) | 2012-11-15 | 2012-11-15 | Method for building load-bearing H-steel |
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| CN102962558A true CN102962558A (en) | 2013-03-13 |
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| CN2012104577786A Pending CN102962558A (en) | 2012-11-15 | 2012-11-15 | Method for building load-bearing H-steel |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104625340A (en) * | 2013-11-07 | 2015-05-20 | 上海宝冶集团有限公司 | Manual welding method of high-strength small-size H-shaped steel |
| CN105014334A (en) * | 2014-04-30 | 2015-11-04 | 上海东海压力容器制造有限公司 | Manufacturing method of W-shaped steel for passive waste heat discharge heat exchanger supporting frame |
| CN112964778A (en) * | 2021-03-01 | 2021-06-15 | 山东钢铁股份有限公司 | Automatic magnetic powder flaw detection device and method for H-shaped steel |
Citations (8)
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| JPH09302625A (en) * | 1996-05-17 | 1997-11-25 | Kawasaki Steel Corp | Plate girder having steel pipe flange and its manufacture |
| JP2008008128A (en) * | 2006-06-28 | 2008-01-17 | Koa:Kk | H-shape steel with thickness-increased end for beam in steel building |
| CN101524804A (en) * | 2009-03-27 | 2009-09-09 | 中建钢构有限公司 | Steel member manufacturing method |
| CN201487530U (en) * | 2009-06-15 | 2010-05-26 | 孙柏青 | Stress-symmetric H beam |
| CN201486036U (en) * | 2009-07-31 | 2010-05-26 | 上海美建钢结构有限公司 | H-shaped steel girder with rectangular steel pipe hollow flange |
| CN102059524A (en) * | 2010-12-30 | 2011-05-18 | 山东杭萧钢构有限公司 | Fabricating process of full-web welding H-type steel member |
| CN102275033A (en) * | 2011-05-12 | 2011-12-14 | 安徽伟宏钢结构有限公司 | Method of butt welding of steel plates to form deformation-resistant cross column |
| CN102717221A (en) * | 2012-06-07 | 2012-10-10 | 中建钢构江苏有限公司 | Method for manufacturing thick plate ultra narrow flange H-beam |
-
2012
- 2012-11-15 CN CN2012104577786A patent/CN102962558A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09302625A (en) * | 1996-05-17 | 1997-11-25 | Kawasaki Steel Corp | Plate girder having steel pipe flange and its manufacture |
| JP2008008128A (en) * | 2006-06-28 | 2008-01-17 | Koa:Kk | H-shape steel with thickness-increased end for beam in steel building |
| CN101524804A (en) * | 2009-03-27 | 2009-09-09 | 中建钢构有限公司 | Steel member manufacturing method |
| CN201487530U (en) * | 2009-06-15 | 2010-05-26 | 孙柏青 | Stress-symmetric H beam |
| CN201486036U (en) * | 2009-07-31 | 2010-05-26 | 上海美建钢结构有限公司 | H-shaped steel girder with rectangular steel pipe hollow flange |
| CN102059524A (en) * | 2010-12-30 | 2011-05-18 | 山东杭萧钢构有限公司 | Fabricating process of full-web welding H-type steel member |
| CN102275033A (en) * | 2011-05-12 | 2011-12-14 | 安徽伟宏钢结构有限公司 | Method of butt welding of steel plates to form deformation-resistant cross column |
| CN102717221A (en) * | 2012-06-07 | 2012-10-10 | 中建钢构江苏有限公司 | Method for manufacturing thick plate ultra narrow flange H-beam |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104625340A (en) * | 2013-11-07 | 2015-05-20 | 上海宝冶集团有限公司 | Manual welding method of high-strength small-size H-shaped steel |
| CN105014334A (en) * | 2014-04-30 | 2015-11-04 | 上海东海压力容器制造有限公司 | Manufacturing method of W-shaped steel for passive waste heat discharge heat exchanger supporting frame |
| CN112964778A (en) * | 2021-03-01 | 2021-06-15 | 山东钢铁股份有限公司 | Automatic magnetic powder flaw detection device and method for H-shaped steel |
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Application publication date: 20130313 |