CN220521743U - Fish-bellied large-span roof steel girder and roof thereof - Google Patents
Fish-bellied large-span roof steel girder and roof thereof Download PDFInfo
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- CN220521743U CN220521743U CN202322128595.6U CN202322128595U CN220521743U CN 220521743 U CN220521743 U CN 220521743U CN 202322128595 U CN202322128595 U CN 202322128595U CN 220521743 U CN220521743 U CN 220521743U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 59
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- 210000001015 abdomen Anatomy 0.000 claims abstract 5
- 239000002131 composite material Substances 0.000 claims description 7
- 239000004567 concrete Substances 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
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- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model discloses a fish belly type large-span roof steel girder and a roof thereof, relates to the technical field of building roofs, solves the problem of insufficient net height of a large-span room, and reduces the dead weight of the roof. The utility model comprises a fish-bellied steel beam, wherein the fish-bellied steel beam is formed by welding an upper flange, a lower flange, a web plate, a middle stiffening rib plate and side stiffening rib plates, the upper flange is welded with the lower flange through the web plate, the middle stiffening rib plate and the side stiffening rib plates, two ends of the fish-bellied steel beam are respectively hinged with a supporting member, and the top end of the fish-bellied steel beam is provided with a roof panel through a plurality of roof secondary beams. The upper flange and the lower flange of the fish-bellied steel girder are inclined in opposite directions and have variable slope, the slope meets the drainage requirement, the minimum height of the end part is reduced to 1/20-1/38 of the span, the section characteristic of the steel girder is fully utilized to bear the load of the roof, the net height is greatly increased or the layer height is reduced, the slope finding layer is prevented from being arranged on the roof, the dead weight of the roof is greatly reduced, the section of the steel girder is further reduced, and the additional constant load of the roof is further reduced.
Description
Technical Field
The utility model relates to the technical field of building roofs, in particular to a fish-bellied large-span roof steel girder and a roof thereof.
Background
Along with the development of economy and the progress of society, people are increasingly demanding to beautify living, large-space places such as large meetings, exhibitions, banquet, film and television, and the like, require that the room tops of the large-space places are concise and elegant, simultaneously, in order to increase the heat preservation capacity of the roof, avoid the roof leakage, reduce the maintenance in later stages, the roof adopts the roof with gradient, and the slope is found through the slope finding layer, thereby meeting the natural drainage.
For roofs with large space, light steel structures such as a net rack, a net shell and a truss can be used, but the structures are applicable to light roofs such as profiled steel sheets or aluminum sheets, and meanwhile, the roof members are more and disordered, so that the visual effect is influenced; the prestressed concrete structure large-span roof has large self weight, the span is generally not more than 24m, professional construction teams are needed, the construction period is long, and the cost is high.
At present, the large-span roof also adopts the form of steel girder and composite floor slab, but the upper flange and the lower flange of the steel girder are horizontal, and the section height is usually 1/1 of the span5-1/22, and slope finding and water draining are carried out through a roof slope finding layer, wherein the weight of the slope finding layer is 200-400kg/m 2 The additional load is very high.
Disclosure of Invention
In order to solve the problems, namely the problems of the prior art, the utility model provides a fish-bellied large-span roof girder and a roof thereof, which comprise a fish-bellied girder, wherein the fish-bellied girder is formed by welding an upper flange, a lower flange, a web plate, a middle stiffening rib plate and side stiffening rib plates, the upper flange is welded with the lower flange through the web plate, the middle stiffening rib plate and the side stiffening rib plates, two ends of the fish-bellied girder are respectively hinged with supporting members, and roof panels are arranged at the top ends of the fish-bellied girder through a plurality of roof sub-beams.
The utility model is further provided with: the upper flange and the lower flange incline towards each other from the midspan to the two end supporting members, the gradient range is 2% -5%, and the height of the web plate is gradually reduced from the midspan to the two end supporting members.
The utility model is further provided with: the middle stiffening rib plates are arranged at the gradient-changing positions of the upper flanges of the midspan, the left end and the right end of each middle stiffening rib plate are respectively provided with side stiffening rib plates, and the distance range is 1-4 times of the height of the end part of the fish-bellied steel girder.
The utility model is further provided with: the supporting member is concrete, steel or a combined member of steel and concrete, and is rectangular, I-shaped or box-shaped.
The utility model is further provided with: the roof board is a profiled steel sheet composite floor slab, a steel bar truss floor support plate composite floor slab, glass or a metal plate.
The utility model is further provided with: and a plurality of roof secondary beams are vertically arranged on the upper flange along the length direction of the roof.
The utility model is further provided with: the fish-bellied steel beams are unidirectionally arranged along the length direction of the roof, the distance range is 3-6m, the span range is 18-40m, the end height range is 0.55-1.8m, and the welding combination section is I-shaped or box-shaped.
The beneficial technical effects of the utility model are as follows: the fish-bellied steel girder has the advantages that the upper flange and the lower flange of the fish-bellied steel girder are oppositely inclined and change in gradient, the gradient meets the drainage requirement, the minimum height of the end part is reduced to 1/20-1/38 of the span, the section characteristic of the steel girder is fully utilized to bear the load of the roof, the net height is greatly increased or the layer height is reduced, the slope finding layer is avoided being arranged on the roof, the dead weight of the roof is greatly reduced, the section of the steel girder is further reduced, the additional constant load of the roof is further reduced, the earthquake force is reduced, the external load resistance of the structure is improved, the formwork and a support system which is temporarily constructed in construction are not needed, and the steel and the engineering cost are saved.
Drawings
Fig. 1 shows a fish-bellied large-span roof girder and a roof construction schematic diagram thereof.
Fig. 2 shows a schematic diagram of a fish-bellied large-span steel girder structure.
Fig. 3 shows a fish-bellied large span steel girder and its roof top view.
Fig. 4 shows a cross-sectional view along A-A in fig. 1.
Fig. 5 shows a cross-sectional view along the direction B-B in fig. 2.
Reference numerals: 1. the steel beam comprises a fish web type steel beam, a top flange, a bottom flange, a web plate, a middle stiffening rib plate, a side stiffening rib plate, a supporting member, a roof panel, a roof sub-beam and a middle stiffening rib plate.
Detailed Description
Preferred embodiments of the present utility model are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present utility model, and are not intended to limit the scope of the present utility model.
The utility model provides a fish-bellied large-span roof girder and a roof thereof, comprising a fish-bellied girder 1, wherein the fish-bellied girder 1 is formed by welding an upper flange 2, a lower flange 3, a web 4, a middle stiffening rib plate 5 and a side stiffening rib plate 6, the upper flange 2 is welded with the lower flange 3 through the web 4, the middle stiffening rib plate 5 and the side stiffening rib plate 6, and two ends of the fish-bellied girder 1 are respectively hinged with a supporting member 7, so that the torque of the large-span fish-bellied girder 1 to the supporting beam is reduced, the additional internal force caused by foundation settlement difference caused by too large difference of building heights or weights at two sides of the large-span roof is released, and the section height of the fish-bellied girder 1 is reduced. The roof panel 8 is installed on the top of the fish-bellied steel beam 1 through a plurality of roof sub-beams 9. The roof system formed by the fish-bellied steel girder 1 and the roof plate 8 does not need a template, a temporary supporting system is not needed during construction, the construction is simple and convenient, and the engineering cost is saved.
The upper flange 2 and the lower flange 3 are respectively inclined towards each other from the midspan to the two end supporting members 7, the gradient range is 2% -5%, and the height of the web 4 is gradually reduced from the midspan to the two end supporting members 7. Not only solves the problem of lower net height or higher layer height caused by too high height of the large-span beam, but also avoids setting a slope-finding layer by finding a slope through the upper flange 2, thereby reducing the additional constant load of 200-400kg/m of the roof 2 The earthquake force is reduced, the section of the steel beam is further reduced, or the safety of the structure is improved, and the engineering cost is saved.
The middle stiffening rib plates 5 are arranged at the variable slope of the upper flange 2 of the midspan, the left and right ends of the middle stiffening rib plates are respectively provided with side stiffening rib plates 6, and the distance range is 1-4 times of the height of the end part of the fish-bellied steel girder 1. The upper flange 2 and the lower flange 3 of the fish-web steel girder 1 cannot be disconnected at the middle stiffening rib plate 5, and the change of gradient is automatically formed in a steel member processing plant, so that the abrupt change of the steel girder stress at the variable gradient of the upper flange 2 is avoided.
The supporting member 7 is concrete, steel or a combination member of steel and concrete, and has a rectangular, I-shaped or box shape. The roof board 8 is a profiled steel sheet composite floor slab, a steel bar truss floor support plate composite floor slab, glass or metal plate, can bear heavy roof load, and meanwhile, an insulating layer and a waterproof layer are placed on the roof board 8, so that energy dissipation of heating or refrigerating of a large-span room is reduced, photovoltaic, greening and leisure facilities can be installed on the roof board, and secondary transformation is reduced. A plurality of roof secondary beams 9 are vertically arranged on the upper flange 2 along the length direction of the roof.
The fish-bellied steel beams 1 are unidirectionally arranged along the length direction of the roof, the spacing range is 3-6m, the span range is 18-40m, the end height range is 0.55-1.8m, and the welding combination section is I-shaped or box-shaped. The problem of the demand in large-scale meeting, exhibition, banquet, film and television etc. large-scale spacious place, and room top succinct pleasing to the eye, the minimum height of tip reduces to 1/20-1/38 of span, increases the net height by a wide margin or reduces the layer height.
While the utility model has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model, and in particular, the technical features set forth in the various embodiments may be combined in any manner so long as there is no structural conflict. The present utility model is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
In the description of the present utility model, terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, which indicate a direction or a positional relationship, are based on the direction or the positional relationship shown in the drawings, are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.
The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus/means that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus/means.
Thus far, the technical solution of the present utility model has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present utility model is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and substitutions will fall within the scope of the present utility model.
Claims (7)
1. The utility model provides a fish belly formula large-span roofing girder steel and roofing thereof, includes fish belly formula girder steel (1), its characterized in that: the fish-bellied steel girder (1) is formed by welding an upper flange (2), a lower flange (3), a web plate (4), a middle stiffening rib plate (5) and a side stiffening rib plate (6), wherein the upper flange (2) is welded with the lower flange (3) through the web plate (4), the middle stiffening rib plate (5) and the side stiffening rib plate (6), two ends of the fish-bellied steel girder (1) are respectively hinged with supporting members (7), and roof panels (8) are installed at the top of the fish-bellied steel girder (1) through a plurality of roof secondary beams (9).
2. A fish-bellied large-span roofing steel girder and roofing thereof according to claim 1, characterized in that: the upper flange (2) and the lower flange (3) are respectively inclined in opposite directions from the midspan to the two end supporting members (7), the gradient range is 2% -5%, and the height of the web (4) is gradually reduced from the midspan to the two end supporting members (7).
3. A fish-bellied large-span roofing steel girder and roofing thereof according to claim 1, characterized in that: the middle stiffening rib plates (5) are arranged at the variable slope of the midspan upper flange (2), the left end and the right end of the middle stiffening rib plates are respectively provided with side stiffening rib plates (6), and the distance range is 1-4 times of the height of the end part of the fish belly type steel beam (1).
4. A fish-bellied large-span roofing steel girder and roofing thereof according to claim 1, characterized in that: the supporting member (7) is concrete, steel or a combined member of steel and concrete, and is rectangular, I-shaped or box-shaped.
5. A fish-bellied large-span roofing steel girder and roofing thereof according to claim 1, characterized in that: the roof board (8) is a profiled steel sheet composite floor slab, a steel bar truss floor support plate composite floor slab, glass or a metal plate.
6. A fish-bellied large-span roofing steel girder and roofing thereof according to claim 1, characterized in that: the roof secondary beams (9) are vertically arranged on the upper flange (2) along the length direction of the roof.
7. A fish-bellied large-span roofing steel girder and roofing thereof according to claim 1, characterized in that: the fish belly type steel beams (1) are unidirectionally arranged along the length direction of the roof, the distance range is 3-6m, the span range is 18-40m, the end height range is 0.55-1.8m, and the welding combination section is I-shaped or box-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322128595.6U CN220521743U (en) | 2023-08-08 | 2023-08-08 | Fish-bellied large-span roof steel girder and roof thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322128595.6U CN220521743U (en) | 2023-08-08 | 2023-08-08 | Fish-bellied large-span roof steel girder and roof thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220521743U true CN220521743U (en) | 2024-02-23 |
Family
ID=89924325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322128595.6U Active CN220521743U (en) | 2023-08-08 | 2023-08-08 | Fish-bellied large-span roof steel girder and roof thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220521743U (en) |
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2023
- 2023-08-08 CN CN202322128595.6U patent/CN220521743U/en active Active
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