CN105178506A - Solid web girder with high-strength steel bars - Google Patents
Solid web girder with high-strength steel bars Download PDFInfo
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- CN105178506A CN105178506A CN201510489776.9A CN201510489776A CN105178506A CN 105178506 A CN105178506 A CN 105178506A CN 201510489776 A CN201510489776 A CN 201510489776A CN 105178506 A CN105178506 A CN 105178506A
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- strength steel
- steel bar
- flange plate
- web
- top flange
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Abstract
The invention discloses a solid web girder with high-strength steel bars. The solid web girder comprises an upper flange plate, a web plate and the steel bars, wherein the web plate is arranged between the upper flange plate and the high-strength steel bars, and connected with the upper flange plate and the high-strength steel bars respectively; the high-strength steel bars are parallel to the plane where the upper flange plate is located; the web plate is vertical to the upper flange plate and the steel bars; and the diameter of each steel bar is less than the width of the upper flange plate.
Description
Technical field
The present invention relates to a kind of high-strength steel bar solid web girder.
Background technology
Existing solid web girder, H profile steel is all top flange plate, web, the interconnective structure of bottom wing listrium mostly, and wherein upper and lower frange plate generally is steel plate structure.Steel plate structure plane floor space is larger, and steel plate structure is coated in concrete, and because steel plain projected area is larger, the concrete outside cladding steel plated construction will coordinate the structure of steel plate, then concrete beam is wider comparatively speaking.Such as, be suspended in the house beam on roof, bottom wing listrium face size directly determine spatial volume in room that room beam occupies.The spatial volume occupied wanting to reduce room beam needs the face size reducing bottom wing listrium, but H profile steel is all standard component, and undersized H profile steel exists the unappeasable problem of intensity.So existing solid web girder under the prerequisite of requirement meeting intensity, can not accomplish rolled steel dosage saving, effectively improve building usable floor area, the requirement of appearance looks elegant.
In addition, in steel work steel, developed countries uses 420MPa, 460MPa, 490MPa, 550MPa level in a large number, and even use 780MPa level steel, corresponding codes and standards are supporting.In China, more than the high-strength steel of 420MPa, supporting design specifications is not had to intensity, if apply in engineering, then can use after will specializing in for concrete engineering.In the major projects such as National Stadium (Bird's Nest) and building, CCTV new address, part adopts Q460MPa steel, and steel are all domestic, select in process to have organized repeatedly to be expounded through peer review at steel, and done special item work, achieve good result by application.Domestic multiple steel mill has possessed the ability producing and develop high strength construction steel.But high-strength steel still has a large amount of technical problems to be solved in China's application, and high-strength steel compressed member calculating method for stability is one of its key technical problem.
Summary of the invention
For the problems referred to above, the invention provides a kind of rational in infrastructure, appearance looks elegant, is pulling the high-strength steel bar solid web girder of saving steels under intensity equally.
To achieve the above object of the invention, high-strength steel bar solid web girder of the present invention, comprise top flange plate, web, rod iron, described web is arranged between described top flange plate and described high-strength steel bar and connects described top flange plate and described high-strength steel bar respectively, the plane at the parallel described top flange plate place of wherein said high-strength steel bar, described web is perpendicular to described top flange plate, rod iron.
Especially, described rod iron is high-strength steel bar, and wherein said high-strength steel bar is 420MPa, 460MPa, 490MPa, 550MPa, 780MPa level steel.
Further, described web is wave webs, and the cross section of wherein said wave webs is trapezoidal cross-section structure, sine curve, cosine curve, rectangular cross section, circular section or triangular section structure.
Further, described top flange plate and described web infall are provided with some high-strength ribs, and described rod iron and described web infall are provided with some ribs, and described ribs is arranged along rod iron length direction.
Further, outside described top flange plate He on described high-strength steel bar, be equipped with some projections, described array of protrusions shape arrangement.
Particularly, the tangent setting of external surface of the ribs between described rod iron and described web and described rod iron, the angle between described ribs and described web is 60 °.
Further, described web is arranged on the middle position of top flange plate width, and the diameter of described rod iron is less than the width of described top flange plate, and the diameter of described rod iron is 1/5 to 1/2 of described top flange plate width.
High-strength steel bar solid web girder of the present invention, adopt rod iron to replace bottom wing listrium, as the bottom flange part in tension of beam, tensile strength is higher, and under identical tensile strength, rod iron can save steel than slab, avoids the wasting of resources.In addition, under square one, the diameter of rod iron is less than the width of bottom wing listrium, also namely lessly occupies space within doors, improves the aesthetics of building.
In addition, high-strength steel bar reaches after final strength through Overheating Treatment, and the plasticity deficiency of structure hinders stress redistribution.High-strength steel bar intensity is higher, and as the bottom flange part in tension of beam, tensile strength is higher, can save steel, avoid the wasting of resources.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment 1 of high-strength steel bar solid web girder of the present invention;
Fig. 2 is the structural representation of the embodiment 2 of high-strength steel bar solid web girder of the present invention.
Detailed description of the invention
Below in conjunction with Figure of description, the present invention will be further described.
Embodiment 1
As shown in Figure 1, the present embodiment high-strength steel bar solid web girder, comprise top flange plate 1, web 2 and rod iron 3, described web is arranged between described top flange plate and described high-strength steel bar and connects described top flange plate and described high-strength steel bar respectively, the plane at the parallel described top flange plate place of wherein said high-strength steel bar, described web is perpendicular to described top flange plate, rod iron, and the diameter of described rod iron is less than the width of described top flange plate.
In the present embodiment, described rod iron is high-strength steel bar, and high-strength steel bar reaches after final strength through Overheating Treatment, and the plasticity deficiency of structure hinders stress redistribution.
In the present embodiment, high-strength steel bar intensity is higher, and as the bottom flange part in tension of beam, tensile strength is higher, and under identical tensile strength, high-strength steel bar can save steel than slab, avoids the wasting of resources.In addition under same case, the diameter of high-strength steel bar is less than the alternative bottom wing listrium of described high-strength steel bar.
Embodiment 2
As shown in Figure 2, the present embodiment high-strength steel bar solid web girder, comprise top flange plate, web 21 and rod iron, described web is arranged between described top flange plate and described high-strength steel bar and connects described top flange plate and described high-strength steel bar respectively, the plane at the parallel described top flange plate place of wherein said high-strength steel bar, described web is less than the width of described top flange plate perpendicular to the diameter of rod iron described in described top flange plate, rod iron.
In the present embodiment, identical with above-described embodiment 1, described rod iron is high-strength steel bar, but difference is that the structure of described web is different, and web described in the present embodiment is wave webs, and the cross section of wherein said wave webs is trapezoidal cross-section structure.
The present embodiment expands embodiment, and the cross section of described wave webs can also be sine curve, cosine curve, rectangular cross section, circular section or triangular section structure.
Embodiment 3
The present embodiment high-strength steel bar solid web girder, on the basis of embodiment 1,2, described top flange plate and described web infall are provided with some high-strength ribs, and described high-strength steel bar and described web infall are provided with some high-strength ribs, and described high-strength rib is arranged along high-strength steel bar length direction.
The tangent setting of external surface of the ribs between described rod iron and described web and described rod iron, the angle between described ribs and described web is 60 °.
Add high-strength rib in the present embodiment, strengthen the intensity of high-strength steel bar solid web girder.
In the various embodiments described above, outside described top flange plate He on described high-strength steel bar, be equipped with some projections, described array of protrusions shape arrangement.Be arranged on and be equipped with some projections outside described top flange plate and on described high-strength steel bar and can improve adhesion between high-strength steel bar solid web girder and concrete.
In the various embodiments described above, described web is arranged on the middle position of top flange plate width, and the diameter of described rod iron is less than the width of described top flange plate, and the diameter of described rod iron is 1/5 to 1/2 of described top flange plate width.
In the various embodiments described above, described high-strength steel bar is the high-strength steel bar of all sizes such as 420MPa, 460MPa, 490MPa, 550MPa, 780MPa level steel.
In the present invention, the nuance of high-strength steel bar heat treatment process also may cause the final mechanical performance of material to have larger difference.Therefore, high-strength steel bar structural element stable calculation, should be different from common low carbon steel work.
Above; be only preferred embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should define with claim is as the criterion.
Claims (7)
1. a high-strength steel bar solid web girder, it is characterized in that, comprise top flange plate, web, rod iron, described web is arranged between described top flange plate and described high-strength steel bar and connects described top flange plate and described high-strength steel bar respectively, the plane at the parallel described top flange plate place of wherein said high-strength steel bar, described web is perpendicular to described top flange plate, rod iron, and the diameter of described rod iron is less than the width of described top flange plate.
2. high-strength steel bar solid web girder according to claim 1, is characterized in that: described rod iron is high-strength steel bar, and wherein said high-strength steel bar is 420MPa, 460MPa, 490MPa, 550MPa, 780MPa level steel.
3. high-strength steel bar solid web girder according to claim 1, it is characterized in that, described web is wave webs, and the cross section of wherein said wave webs is trapezoidal cross-section structure, sine curve, cosine curve, rectangular cross section, circular section or triangular section structure.
4. high-strength steel bar solid web girder according to claim 1, is characterized in that, described top flange plate and described web infall are provided with some high-strength ribs, and described rod iron and described web infall are provided with some ribs, and described ribs is arranged along rod iron length direction.
5. high-strength steel bar solid web girder according to claim 1, is characterized in that, is equipped with some projections outside described top flange plate He on described high-strength steel bar, described array of protrusions shape arrangement.
6. high-strength steel bar solid web girder according to claim 4, is characterized in that: the tangent setting of external surface of the ribs between described rod iron and described web and described rod iron, the angle between described ribs and described web is 60 °.
7. high-strength steel bar solid web girder according to claim 1, it is characterized in that: described web is arranged on the middle position of top flange plate width, the diameter of described rod iron is less than the width of described top flange plate, and the diameter of described rod iron is 1/5 to 1/2 of described top flange plate width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510489776.9A CN105178506A (en) | 2015-08-11 | 2015-08-11 | Solid web girder with high-strength steel bars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510489776.9A CN105178506A (en) | 2015-08-11 | 2015-08-11 | Solid web girder with high-strength steel bars |
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| Publication Number | Publication Date |
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| CN105178506A true CN105178506A (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510489776.9A Pending CN105178506A (en) | 2015-08-11 | 2015-08-11 | Solid web girder with high-strength steel bars |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078283A (en) * | 1992-04-28 | 1993-11-10 | 米切尔·A·康纳 | Reinforced steel beam and girder |
| US20060150571A1 (en) * | 2005-01-11 | 2006-07-13 | Zahner L W Iii | I-beam with curved flanges |
| CN101298788A (en) * | 2007-04-30 | 2008-11-05 | 浙江建设职业技术学院 | Steel tube concrete combination 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 |
| CN203403595U (en) * | 2013-07-18 | 2014-01-22 | 杭州博数土木工程技术有限公司 | Compression flange enhanced type H-shaped steel or I-shaped steel |
| CN204059752U (en) * | 2014-09-18 | 2014-12-31 | 江西省辉煌建设集团有限公司 | A kind of heavier-duty Ripple Sternum |
| CN104499642A (en) * | 2015-01-16 | 2015-04-08 | 山东钢铁股份有限公司 | H-section steel |
| CN204899027U (en) * | 2015-08-11 | 2015-12-23 | 中冶建筑研究总院有限公司 | Rod iron solid web girder excels in |
-
2015
- 2015-08-11 CN CN201510489776.9A patent/CN105178506A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078283A (en) * | 1992-04-28 | 1993-11-10 | 米切尔·A·康纳 | Reinforced steel beam and girder |
| US20060150571A1 (en) * | 2005-01-11 | 2006-07-13 | Zahner L W Iii | I-beam with curved flanges |
| CN101298788A (en) * | 2007-04-30 | 2008-11-05 | 浙江建设职业技术学院 | Steel tube concrete combination 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 |
| CN203403595U (en) * | 2013-07-18 | 2014-01-22 | 杭州博数土木工程技术有限公司 | Compression flange enhanced type H-shaped steel or I-shaped steel |
| CN204059752U (en) * | 2014-09-18 | 2014-12-31 | 江西省辉煌建设集团有限公司 | A kind of heavier-duty Ripple Sternum |
| CN104499642A (en) * | 2015-01-16 | 2015-04-08 | 山东钢铁股份有限公司 | H-section steel |
| CN204899027U (en) * | 2015-08-11 | 2015-12-23 | 中冶建筑研究总院有限公司 | Rod iron solid web girder excels in |
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Application publication date: 20151223 |