CN219863663U - Horizontal variable cross section special-shaped beam of frame structure - Google Patents
Horizontal variable cross section special-shaped beam of frame structure Download PDFInfo
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- CN219863663U CN219863663U CN202321244429.6U CN202321244429U CN219863663U CN 219863663 U CN219863663 U CN 219863663U CN 202321244429 U CN202321244429 U CN 202321244429U CN 219863663 U CN219863663 U CN 219863663U
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- flange plate
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- cross beam
- webs
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 238000003466 welding Methods 0.000 claims description 2
- 230000002159 abnormal effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract description 10
- 238000010008 shearing Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 6
- 238000005520 cutting process Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model discloses a horizontal variable cross section special-shaped beam of a frame structure, belonging to the technical field of structures of buildings; the device comprises support columns, cross beams which are connected to the outer walls of the support columns in a cross-shaped manner, and expansion heads which are arranged at the end parts of the cross beams in an extending manner; the cross beam is an H-shaped steel beam and comprises an upper flange plate, a lower flange plate and a cross beam web, wherein the horizontal section widths of the upper flange plate and the lower flange plate gradually decrease from the beam root to the beam end, and an expansion head is arranged at the end of the cross beam; two expanding head webs vertically connected between the upper flange plate and the lower flange plate are arranged in the expanding head, and the two expanding head webs and the cross beam web form a Y-shaped structure. In the component structure, the horizontal section width from the root to the end of the beam is gradually reduced, so that the aim of saving materials is fulfilled, and the ultimate bending resistance and the shearing bearing capacity of the component are ensured to be unchanged.
Description
Technical Field
The utility model belongs to the technical field of structures of buildings, and particularly relates to a horizontal variable cross-section special-shaped beam of a frame structure.
Background
In practical application, for example, the utility model patent with the publication number of CN106759868B and the utility model name of a frame structure is issued, in practical application, the H-shaped steel beam at the column head is only a height-variable cross-section beam, and the width of the H-shaped steel beam is equal on the plane, namely, the widths of the upper flange and the lower flange are equal, as shown in a schematic plan view of fig. 1. For the stress condition of the beam, the root of the beam, namely the intersection point of the beam and the column, is the maximum bending moment and the maximum shearing force position, the end part of the beam is the minimum bending moment and the minimum shearing force position, the end position of the beam is close to the position of the reverse bending point, namely the point with zero bending moment, namely the end bending moment of the beam is relatively small; therefore, from the beam root to the beam end, for the H-shaped steel beams with the same width on the plane, after the ultimate bending and shearing bearing capacity is met, the materials are rich and more, and the waste of redundant materials in the structure and the increase of production cost are caused.
Therefore, there is a need to design an optimized cross-sectional shape for a frame structure that allows for ease of design, machining and installation while satisfying load bearing capacity.
Disclosure of Invention
The purpose of the utility model is that: the defect in the prior art is overcome, the horizontal variable cross section special-shaped beam of the frame structure is provided, and the horizontal cross section width from the beam root to the end is gradually reduced under the condition that the heights of the beam root and the end, the width of the flange of the beam root and the thickness of the flange web are unchanged, so that the purpose of saving materials is achieved, and the ultimate bending resistance and the shearing resistance bearing capacity of the component are also ensured to be unchanged.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the horizontal variable cross section special-shaped beam of the frame structure comprises support columns, cross beams which are distributed and connected to the outer walls of the support columns in a cross shape, and expansion heads which are arranged at the end parts of the cross beams in an extending mode; the cross beam is an H-shaped steel beam and comprises an upper flange plate, a lower flange plate and a cross beam web, wherein the horizontal section widths of the upper flange plate and the lower flange plate are gradually reduced from the beam root to the beam end, and an expansion head is arranged at the end of the cross beam; two expansion head webs vertically connected between the upper flange plate and the lower flange plate are arranged in the expansion head, and the two expansion head webs and the cross beam web form a Y-shaped structure.
The two expansion head webs are symmetrically connected to the cross beam web in a Y shape, namely, the symmetry axis between the two expansion head webs coincides with the symmetry axis of the cross beam web.
The angle between the enlarged head web and the cross beam web is 135 °.
The length of the expansion head web is matched with the length of the web when the adjacent beam webs are connected through bolts.
The variable cross section special-shaped flange between the cross beam and the enlarged head is of an integrated structure or of a split welding fixed structure.
The beneficial effects of the utility model are as follows:
1) In the component structure, the horizontal section width from the beam root to the end is gradually reduced under the condition that the heights of the beam root and the end, the width of the flange of the beam root and the thickness of the flange web are unchanged, so that the aim of saving materials is achieved, and the ultimate bending resistance and the shearing bearing capacity of the component are also ensured to be unchanged.
2) The steel consumption index of the horizontal variable cross section special-shaped beam can be reduced by about 25% for one beam, and the steel consumption index for cutting after considering the integral typesetting of the steel plates can be reduced by about 18%.
Drawings
FIG. 1 is a schematic plan view of a prior art frame structure;
FIG. 2 is a schematic plan view of the present utility model;
fig. 3 is a cross-sectional view taken along the direction A-A in fig. 2.
In the figure, 1-supporting columns, 2-cross beams, 201-upper flange plates, 202-lower flange plates, 203-cross beam webs, 3-enlarged heads, 301-enlarged head webs and 4-connecting plates.
Detailed Description
The utility model is further illustrated by the following description in conjunction with the accompanying drawings and specific embodiments.
Examples: as shown in fig. 2 and 3, the utility model provides a horizontal variable cross-section special-shaped beam of a frame structure, which comprises a support column 1, cross beams 2 and expansion heads 3, wherein the cross beams 2 are a plurality of H-shaped steel beams and are connected to the outer wall of the support column 1 in a cross-shaped manner, and the expansion heads 3 are arranged at the end parts of the cross beams 2 in an extending manner.
The cross beam 2 comprises an upper flange plate 201, a lower flange plate 202 and a cross beam web 203, wherein the cross beam web 203 is vertically connected between the upper flange plate 201 and the lower flange plate 202, the upper flange plate 201 is horizontally installed, the horizontal section widths of the upper flange plate 201 and the lower flange plate 202 are gradually reduced from the beam root to the beam end, and an expansion head 3 is arranged at the end part of the cross beam.
Two enlarged head webs 301 vertically connected between the upper flange plate 201 and the lower flange plate 202 are arranged in the enlarged head 3, the two enlarged head webs 301 and the cross beam web 203 form a Y-shaped structure, the length of the enlarged head web 301 needs to be 100mm, and the length of the enlarged head web 301 cannot be too short, namely, the length of the enlarged head web 301 is matched with the length of the web when the adjacent beam webs are connected through bolts.
The two expansion head webs 301 are symmetrically connected to the cross beam web 203 in a Y shape, namely, the symmetry axis between the two expansion head webs 301 coincides with the symmetry axis of the cross beam web 203; the angle between the enlarged head web 301 and the cross beam web 203 is 135 °, but in practice, it may not be limited to just 135 ° for non-rectangular column networks.
The variable cross section special-shaped flange between the cross beam 2 and the expansion head 3 can be integrally processed and formed, or the expansion head 3 can be independently and separately processed and then welded into the integral variable cross section special-shaped flange.
A connecting plate 4 is arranged between two adjacent cross beams 2, and the connecting plates 4 are respectively connected with the upper flanges of the cross beams 2.
The utility model can reduce the steel consumption by about 25% for the steel consumption index of one beam, and can reduce the steel consumption by about 18% for the steel consumption index considering the integral typesetting and cutting of the steel plate.
In the component structure, the horizontal section width from the beam root to the end is gradually reduced under the condition that the heights of the beam root and the end, the width of the flange of the beam root and the thickness of the flange web are unchanged, so that the aim of saving materials is achieved, and the ultimate bending resistance and the shearing bearing capacity of the component are also ensured to be unchanged.
The foregoing is merely illustrative of the present utility model and not restrictive, and other modifications and equivalents thereof may occur to those skilled in the art without departing from the spirit and scope of the present utility model.
Claims (5)
1. The utility model provides a horizontal variable cross section abnormal shape roof beam of frame construction which characterized in that: comprises a support column (1), cross beams (2) which are distributed and connected on the outer wall of the support column (1) in a cross shape, and an expansion head (3) which is arranged at the end part of each cross beam (2) in an extending way; the cross beam (2) is an H-shaped steel beam and comprises an upper flange plate (201), a lower flange plate (202) and a cross beam web (203), the horizontal section widths of the upper flange plate (201) and the lower flange plate (202) are gradually reduced from the beam root to the beam end, and an expansion head (3) is arranged at the end of the cross beam; two expansion head webs (301) vertically connected between the upper flange plate (201) and the lower flange plate (202) are arranged in the expansion head (3), and the two expansion head webs (301) and the cross beam web (203) form a Y-shaped structure.
2. A horizontal variable cross section profiled beam for a frame structure as claimed in claim 1, wherein: the two expansion head webs (301) are symmetrically connected to the cross beam web (203) in a Y shape, namely, the symmetry axis between the two expansion head webs (301) coincides with the symmetry axis of the cross beam web (203).
3. A horizontal variable cross section profiled beam for a frame structure as claimed in claim 2, wherein: the angle between the enlarged head web (301) and the cross beam web (203) is 135 °.
4. A horizontal variable cross section profiled beam for a frame structure as claimed in claim 1, wherein: the length of the enlarged head web (301) is matched with the length of the web when the adjacent beam webs are connected through bolts.
5. A horizontal variable cross section profiled beam for a frame structure as claimed in claim 1, wherein: the variable cross section special-shaped flange between the cross beam (2) and the enlarged head (3) is of an integrated structure or of a split welding fixed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321244429.6U CN219863663U (en) | 2023-05-22 | 2023-05-22 | Horizontal variable cross section special-shaped beam of frame structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321244429.6U CN219863663U (en) | 2023-05-22 | 2023-05-22 | Horizontal variable cross section special-shaped beam of frame structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219863663U true CN219863663U (en) | 2023-10-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321244429.6U Active CN219863663U (en) | 2023-05-22 | 2023-05-22 | Horizontal variable cross section special-shaped beam of frame structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219863663U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117386014A (en) * | 2023-12-12 | 2024-01-12 | 北京工业大学 | Z-shaped beam column connection outsourcing concrete section steel special-shaped column-honeycomb beam assembly structure |
-
2023
- 2023-05-22 CN CN202321244429.6U patent/CN219863663U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117386014A (en) * | 2023-12-12 | 2024-01-12 | 北京工业大学 | Z-shaped beam column connection outsourcing concrete section steel special-shaped column-honeycomb beam assembly structure |
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