CN209926004U - Hot-rolled welded large-scale H-shaped steel - Google Patents
Hot-rolled welded large-scale H-shaped steel Download PDFInfo
- Publication number
- CN209926004U CN209926004U CN201821811685.8U CN201821811685U CN209926004U CN 209926004 U CN209926004 U CN 209926004U CN 201821811685 U CN201821811685 U CN 201821811685U CN 209926004 U CN209926004 U CN 209926004U
- Authority
- CN
- China
- Prior art keywords
- arc
- plate
- shaped convex
- convex part
- web
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 49
- 239000010959 steel Substances 0.000 title claims abstract description 49
- 238000003466 welding Methods 0.000 claims description 32
- 230000007704 transition Effects 0.000 claims description 4
- 230000007547 defect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000005096 rolling process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
Landscapes
- Rod-Shaped Construction Members (AREA)
Abstract
The present disclosure provides a hot-rolled welded large-scale H-section steel, comprising a first flange plate, a second flange plate and a web; the first flange plate is provided with a first plate part and a first arc-shaped convex part, and the second flange plate is provided with a second plate part and a second arc-shaped convex part; a first arc-shaped convex part is formed at the middle position of the lower side of the first plate part, and a second arc-shaped convex part is formed at the middle position of the upper side of the second plate part; the first arc-shaped convex part is fixedly connected with the first end of the web plate; the second arc-shaped convex part is fixedly connected with the second end of the web plate.
Description
Technical Field
The present disclosure relates to a hot-rolled welded large-sized H-section steel.
Background
At present, H-shaped steel is an economic section efficient section with more optimized section area distribution and more reasonable strength-to-weight ratio, and is named because the section is the same as the English letter H. The cross section of an H-beam typically includes two sections, a web and a flange. Because each part of H shaped steel all arranges with the right angle, consequently H shaped steel all has advantages such as bending resistance is strong, the construction is simple, practice thrift cost and structure light in all directions, has extensive application in light-duty steel structure, building steel structure and bridge steel structure.
The H-shaped steel can be produced by two methods of welding or rolling. The H-shaped steel is welded by cutting the strip steel with proper thickness into proper width and welding the flange and the web together on a continuous welding unit. The welding of H-shaped steel has the defects of large metal consumption, difficult guarantee of uniform product performance, limited dimension and specification and the like. Therefore, H-shaped steel is produced mainly by a rolling method.
The hot rolling H-shaped steel is limited by equipment and technology, large-sized products are difficult to realize, the precision of the products is not high, in the process of rolling the H-shaped steel, line-shaped defects and layering are easy to generate due to the defects of continuous casting billets, more impurities are contained in the layering, the products cannot be welded together through rolling, and in serious cases, materials are cracked in the using process, so that the strength of the materials is reduced, and potential risks are caused to engineering.
The welded H-shaped steel has complete specifications and varieties and can meet various use requirements, and the welded H-shaped steel is characterized by high section size precision, excellent material performance, customized section size according to user requirements and uniform metallographic structure of a welding part, but because fillet welds are adopted to realize products in the assembling and welding process, welding defects are easy to generate, welding residual stress exists in a welding area, cracks are easy to generate when a weldment is thick, undercut is easy to generate when the weldment is thin, and meanwhile, when large-specification materials are welded, welding deformation is large, and great troubles are brought to finishing in the later period.
SUMMERY OF THE UTILITY MODEL
In order to solve at least one of the above problems, the present disclosure provides an H-section steel, which is implemented by the following technical solutions.
The H-shaped steel comprises a first flange plate, a second flange plate and a web plate; the first flange plate is provided with a first plate part and a first arc-shaped convex part, and the second flange plate is provided with a second plate part and a second arc-shaped convex part; the first arc-shaped convex part is formed in the middle of the lower side of the first plate part, and the second arc-shaped convex part is formed in the middle of the upper side of the second plate part; the first arc-shaped convex part is fixedly connected with the first end of the web plate; the second arc-shaped convex part is fixedly connected with the second end of the web plate.
Furthermore, the outer edges of the first arc-shaped convex part and the second arc-shaped convex part are both transition curves and are provided with grooves butted with the web plates.
Further, the first plate portion and the first arc-shaped convex portion are of an integral structure; the second plate portion and the second arc-shaped convex portion are of an integral structure.
Further, the first plate portion and the second plate portion have the same thickness.
Further, the first and second arcuate projections have the same dimensions.
Further, the maximum thicknesses of the first arc-shaped convex part and the second arc-shaped convex part are the same; the ratio of the sum of the maximum thickness of the first arc-shaped convex part and the thickness of the first plate part to the height of the web plate is 1:8-1: 10; the ratio of the sum of the thickness of the second arc-shaped convex part and the thickness of the second plate part to the height of the web plate is 1:8-1: 10.
Further, the maximum width of the first arc-shaped convex part is the same as the maximum width of the second arc-shaped convex part, the widths of the first plate part and the second plate part are the same, the ratio of the maximum width of the first arc-shaped convex part to the width of the first plate part is 1:8-1:10, and the ratio of the maximum width of the second arc-shaped convex part to the width of the second plate part is 1:8-1: 10.
Further, the groove is arranged at the vertex of the first arc-shaped convex part and the second arc-shaped convex part; the first end of the web is butted with the groove of the first arc-shaped convex part so as to be fixedly connected with the first arc-shaped convex part; and the second end of the web is butted with the groove of the second arc-shaped convex part so as to be fixedly connected with the second arc-shaped convex part.
Further, the first arc-shaped convex part is fixedly connected with the first end of the web plate in a welding mode, and the second arc-shaped convex part is fixedly connected with the second end of the web plate in a welding mode. The H-shaped steel simplifies the technical difficulty of field operation to the maximum extent, saves working hours, thereby stabilizing the engineering quality and improving the working efficiency.
The specific structure of the H-shaped steel of the present disclosure enables the flange plates and the web plates to have high strength. The H-shaped steel can be rolled by adopting high-performance steel. The flange plate is rolled by adopting high-performance steel, and the high-performance steel plate is matched as a web plate, so that the combined large-scale welded H-shaped steel can reach Q420 or higher, and the market blank of the large-scale H-shaped steel of the high-performance steel can be filled.
The flange plate and the web plate are large in thickness, the height of the H-shaped steel is high, the safety coefficient is high, and the flange plate and the web plate can bear large loads. The strength is enough, and the strength can be regulated through steel structure design specification GBJ 77-88 and GB 50661-2011 steel structure welding specification.
The flange plate and the web can be joined by butt seam welding. The welding process is easy to control, the welding quality guarantee capability is strong, the welding quality is high, the adverse factors caused by welding the fillet weld of the H-shaped steel are fundamentally solved, and meanwhile, the welding deformation generated after welding is small, and the later-stage finishing is easy. The quality of the welding seam is easy to ensure, the realization process of the product is easy to control, the defects of variety and specification limitation and hidden layering of the hot-rolled H-shaped steel are overcome, and the defect possibly caused by the quality of the welding seam for welding the H-shaped steel is overcome, so that the high-quality welded H-shaped steel can be provided. The large-scale welded H-shaped steel is applied to places with larger bearing capacity, such as large-span steel bridge members, bearing supports of industrial structures, steel piles and supporting structures of underground engineering, industrial equipment structures such as petrochemical engineering electric power and the like, ships, mechanical manufacturing frame structures and the like.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.
Fig. 1 is a schematic longitudinal sectional view of a large welded H-section according to an embodiment of the present disclosure.
A first flange plate 1, a second flange plate 2 and a web plate 3.
Detailed Description
The present disclosure is described in further detail below with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant disclosure and not restrictive of the disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.
It should be noted that, in the present disclosure, the embodiments and features of the embodiments may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The terms "first" and "second" used in the present disclosure are merely for identification and do not limit the structure of the related components. As shown in FIG. 1, the H-shaped steel comprises a first flange plate 1, a second flange plate 2 and a web plate 3; the first flange plate 2 has a first plate portion and a first arc-shaped convex portion, and the second flange plate 3 has a second plate portion and a second arc-shaped convex portion; the first arc-shaped convex part is formed at the middle position of the lower side of the first plate part, and the second arc-shaped convex part is formed at the middle position of the upper side of the second plate part; the first arc-shaped convex part is fixedly connected with the first end of the web plate; the second arc-shaped convex part is fixedly connected with the second end of the web plate 3. The outer edges of the first arc-shaped convex part and the second arc-shaped convex part are transition curves.
In some embodiments, the first and second flange plates 1, 2 are made by rolling.
In some embodiments, the first arc-shaped convex portion and the second arc-shaped convex portion are both in a characteristic symmetrical "bell curve" shape, and are used for expressing normal distribution, and the normal distribution is a bell curve, and the closer to the center, the larger the value is, and the farther from the center, the smaller the value is. The setting of transition curve enables the mutual transfer path of internal force between first flange board, second flange board and the web even in the same direction as, stress concentration free, connects safe more effectively.
The first plate part and the first arc-shaped convex part are of an integral structure; the second plate part and the second arc-shaped convex part are of an integral structure. The first plate portion and the second plate portion have the same thickness; the first and second arcuate projections have the same dimensions.
The maximum thicknesses of the first arc-shaped convex part and the second arc-shaped convex part are the same, and the ratio of the sum of the maximum thickness of the first arc-shaped convex part and the thickness of the first plate part to the height of the web plate is 1:8-1: 10; and the ratio of the sum of the maximum thickness of the second arc-shaped convex part and the thickness of the second plate part to the height of the web is 1:8-1: 10.
The maximum width of the first arc-shaped convex part is the same as that of the second arc-shaped convex part, the widths of the first plate part and the second plate part are the same, the ratio of the maximum width of the first arc-shaped convex part to the width of the first plate part is 1:8-1:10, and the ratio of the maximum width of the second arc-shaped convex part to the width of the second plate part is 1:8-1: 10.
First arc convex part is preferred to be through welding mode and the first end fixed connection of web, and second arc convex part is preferred to be through welding mode and the second end fixed connection of web. In one embodiment, the first and second arcuate projections are fixedly coupled to the first and second ends of the web by butt welding, respectively. The first arc-shaped convex part and the second arc-shaped convex part are in butt welding with the web plate, so that the welding seam quality is easy to guarantee, the product implementation process is easy to control, the deformation is small, the product overall dimension precision is controllable, the hidden layering defect of other hot-rolled H-shaped steel is avoided, the defect possibly caused by the fillet welding seam quality of the welded H-shaped steel is also avoided, and the high-quality H-shaped steel can be provided.
The apexes of the first and second arcuate projections may also each be beveled (not shown in fig. 1); the first end of the web 3 is butted with the groove of the first arc-shaped convex part so as to be fixedly connected (such as welded connection) with the first arc-shaped convex part; the second end of the web is butted with the groove of the second arc-shaped convex part so as to be fixedly connected (such as welded) with the second arc-shaped convex part.
In more detail, as shown in fig. 1, in the H-section steel of the present embodiment, a web is fixed between a first flange plate 1 and a second flange plate 2, and each of the first flange plate 1 and the second flange plate 2 includes a plate portion and an arc-shaped convex portion. As shown in fig. 1, the vertical direction on the paper surface is the thickness of the plate portion, the horizontal direction on the paper surface is the width of the plate portion, the vertical direction on the paper surface is the thickness of the arcuate projection, the horizontal direction on the paper surface is the width of the arcuate projection, and the vertical direction on the paper surface is the height of the web.
It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.
Claims (8)
1. The hot-rolled welding large-scale H-shaped steel is characterized by comprising a first flange plate, a second flange plate and a web plate; the first flange plate is provided with a first plate part and a first arc-shaped convex part, and the second flange plate is provided with a second plate part and a second arc-shaped convex part;
the first arc-shaped convex part is formed in the middle of the lower side of the first plate part, and the second arc-shaped convex part is formed in the middle of the upper side of the second plate part;
the first arc-shaped convex part is fixedly connected with the first end of the web plate;
the second arc-shaped convex part is fixedly connected with the second end of the web plate;
the outer edges of the first arc-shaped convex part and the second arc-shaped convex part are both transition curves and are provided with grooves butted with the web plates.
2. The hot-rolled welded large-sized H-beam as claimed in claim 1, wherein the first plate portion and the first arc-shaped protrusion are of an integral structure; the second plate portion and the second arc-shaped convex portion are of an integral structure.
3. The hot-rolled welded large H-section steel according to claim 1, wherein the first plate portion and the second plate portion have the same thickness.
4. The hot rolled welded large H-section steel according to claim 1, wherein the first and second arced convex portions have the same dimensions.
5. The hot-rolled welded large-sized H-beam according to claim 1, wherein the maximum thickness of the first and second arced convex portions is the same; the ratio of the sum of the maximum thickness of the first arc-shaped convex part and the thickness of the first plate part to the height of the web plate is 1:8-1: 10; the ratio of the sum of the thickness of the second arc-shaped convex part and the thickness of the second plate part to the height of the web plate is 1:8-1: 10.
6. The hot-rolled welded large H-shaped steel according to claim 5, wherein the maximum width of the first arced convex portion is the same as the maximum width of the second arced convex portion, the widths of the first and second plate portions are the same, the ratio of the maximum width of the first arced convex portion to the width of the first plate portion is 1:8 to 1:10, and the ratio of the maximum width of the second arced convex portion to the width of the second plate portion is 1:8 to 1: 10.
7. The hot-rolled welded large H-beam according to any one of claims 2 to 4, wherein the bevel is provided at the apex of the first and second arcuate projections; the first end groove of the web is butted with the groove of the first arc-shaped convex part so as to be fixedly connected with the first arc-shaped convex part; and the groove of the second end of the web is butted with the groove of the second arc-shaped convex part so as to be fixedly connected with the second arc-shaped convex part.
8. The hot rolled welded large H-beam according to any one of claims 1 to 6, wherein the first arced convex portion is fixedly attached to the first end of the web by welding and the second arced convex portion is fixedly attached to the second end of the web by welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821811685.8U CN209926004U (en) | 2018-11-05 | 2018-11-05 | Hot-rolled welded large-scale H-shaped steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821811685.8U CN209926004U (en) | 2018-11-05 | 2018-11-05 | Hot-rolled welded large-scale H-shaped steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209926004U true CN209926004U (en) | 2020-01-10 |
Family
ID=69064251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821811685.8U Active CN209926004U (en) | 2018-11-05 | 2018-11-05 | Hot-rolled welded large-scale H-shaped steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209926004U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386721A (en) * | 2018-11-05 | 2019-02-26 | 中交公路规划设计院有限公司 | Large H-shaped steel is welded in hot rolling |
-
2018
- 2018-11-05 CN CN201821811685.8U patent/CN209926004U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386721A (en) * | 2018-11-05 | 2019-02-26 | 中交公路规划设计院有限公司 | Large H-shaped steel is welded in hot rolling |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113510403A (en) | Welding method for longitudinal frame structure of ship | |
| CN104786582B (en) | A kind of precast concrete production line die station face steel plate and its manufacture method | |
| CN209926004U (en) | Hot-rolled welded large-scale H-shaped steel | |
| CN103406674B (en) | Method for manufacturing and welding wave web box type section beam and diaphragms | |
| JP3701862B2 (en) | High strength joint construction method for steel structures | |
| CN103231157A (en) | Manufacturing process for welded H-shaped steel | |
| CN102848053B (en) | Assembly and flame process for trunk bulkhead deck | |
| CN206474820U (en) | The narrow gap welding groove of sheet material | |
| CN107081575B (en) | Complex Chinese character 'ri' shaped member and manufacturing method thereof | |
| US8079320B1 (en) | Perimeter frame system for use with construction barges | |
| CN111560855A (en) | Construction method of orthotropic steel bridge | |
| CN1575247A (en) | Vertical corner transition arrangement for semi-membrane tank | |
| CN102061807A (en) | Method for assembling large-span H-shaped steel truss beam | |
| CN111360487A (en) | Novel steel structure and preparation method thereof | |
| CN116927423A (en) | A box-shaped composite column based on hot-rolled channel steel and its preparation process | |
| CN201962795U (en) | Box-shaped column and girder for bended combined type building steel structure | |
| CN114850218A (en) | Rolling device and method for high-bending-resistance stainless steel/bridge steel composite plate | |
| CN112360061A (en) | Steel structure box type column beam and manufacturing method thereof | |
| CN113578966A (en) | Production process and device of low-cost high-performance stainless steel composite plate coil | |
| CN219542163U (en) | Welding-assisting turning-over device and welding-assisting turning-over assembly for H-shaped steel | |
| CN112958886B (en) | A high-efficiency welding method for thick-gauge composite billets | |
| CN201301344Y (en) | Shell of aluminum reduction cell | |
| CN109386721A (en) | Large H-shaped steel is welded in hot rolling | |
| CN215999206U (en) | Welding structure of truncated edge of welding joint groove | |
| CN112404759B (en) | Butt joint method for H-shaped steel members |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |