CN111424823A - Single-layer aluminum alloy space grid structure with web plate provided with holes - Google Patents
Single-layer aluminum alloy space grid structure with web plate provided with holes Download PDFInfo
- Publication number
- CN111424823A CN111424823A CN202010288773.XA CN202010288773A CN111424823A CN 111424823 A CN111424823 A CN 111424823A CN 202010288773 A CN202010288773 A CN 202010288773A CN 111424823 A CN111424823 A CN 111424823A
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- China
- Prior art keywords
- shaped rod
- aluminum alloy
- grid structure
- plate
- layer aluminum
- 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.)
- Pending
Links
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 31
- 239000002356 single layer Substances 0.000 title claims abstract description 18
- 239000000956 alloy Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 description 6
- 238000003466 welding Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 241000188156 Tamu Species 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005269 aluminizing Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 238000001192 hot extrusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/342—Structures covering a large free area, whether open-sided or not, e.g. hangars, halls
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/34—Extraordinary structures, e.g. with suspended or cantilever parts supported by masts or tower-like structures enclosing elevators or stairs; Features relating to the elastic stability
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
- E04B1/5806—Connections for building structures in general of bar-shaped building elements with a cross-section having an open profile
- E04B1/5812—Connections for building structures in general of bar-shaped building elements with a cross-section having an open profile of substantially I - or H - form
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
A single-layer aluminum alloy space grid structure with a web plate provided with a hole comprises grid nodes which are connected with each other, wherein each grid node is composed of an H-shaped rod piece and a disc cover plate; the end parts of the H-shaped rod pieces are arranged in the paired disc cover plates in a surrounding mode, two ends of a flange plate of each H-shaped rod piece are fixedly connected with the disc cover plates through fixing pieces, and holes are formed in web plates of the H-shaped rod pieces at equal intervals; the disc cover plate is at least provided with three H-shaped rod pieces. The invention aims to provide a single-layer aluminum alloy space grid structure which can fully utilize the strength of an aluminum alloy material and further reduce the weight of the space grid structure.
Description
Technical Field
The invention relates to the field of building structures, in particular to a single-layer aluminum alloy space grid structure with a web plate provided with a hole.
Background
The aluminum alloy is considered as an ideal building material due to the characteristics of light dead weight, strong corrosion resistance, high strength and the like, and is widely applied to large-span building structures. However, the aluminum alloy for buildings is not suitable for welding, besides various mechanical performance indexes of materials are sharply reduced in a welding heat affected zone, an oxide film on the surface of the welding heat affected zone can be damaged, and materials close to a welding zone can be softened by heat due to high temperature, so that the aluminum alloy structure is mostly connected in a mechanical mode at present.
For the aluminum alloy space grid structure, the commonly adopted structural system mainly comprises: 1) tamu family system; 2) the Florenbier system; 3) a bolt-ball system. The Thames system is connected by adopting an H-shaped aluminum rod piece and a plate type node, and the upper flange and the lower flange of the H-shaped rod piece are connected with the disc cover plate through bolts, so that the force transmission is reliable and the construction is convenient; the Florence system adopts round tubes with two flattened ends and hub type nodes for connection, but the node rigidity is weak, and the node has limitation, so that the distance between an upper layer rod piece and a lower layer rod piece is small, although the node is of a small double-layer space grid structure, the stress performance is close to a single-layer reticulated shell, and the strength of an aluminum alloy material is difficult to give full play; the bolt ball system is connected by adopting a round pipe and a bolt ball node, but is limited by processing, the bolt ball node and a corresponding rod piece have smaller size, and the existing bolt ball aluminum alloy space grid structure is mostly used in projects with span of less than 30 meters; in addition, an expert scholar researches the cast aluminum node, but the node ductility is poor, and certain difficulty exists in popularization.
At present, the Tamu system is most applied in engineering, but due to the existence of bolt holes, the cross sections of the upper wing and the lower wing of the H-shaped rod piece are weakened to a greater extent, damage often occurs to the flange of the H-shaped rod piece in a node area, the stress of a web plate of the rod piece is small, and the strength of the aluminum alloy material cannot be fully utilized. In order to further improve the structural stress, reduce the material consumption and improve the economic benefit, the existing disc cover plate node is required to be improved and optimized aiming at the problems.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a single-layer aluminum alloy space grid structure which can fully utilize the strength of an aluminum alloy material and further reduce the weight of the space grid structure.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a single-layer aluminum alloy space grid structure with a web plate provided with a hole comprises grid nodes which are connected with each other, wherein each grid node is composed of an H-shaped rod piece and a disc cover plate; the end parts of the H-shaped rod pieces are arranged in the paired disc cover plates in a surrounding mode, two ends of a flange plate of each H-shaped rod piece are fixedly connected with the disc cover plates through fixing pieces, and holes are formed in web plates of the H-shaped rod pieces at equal intervals; the disc cover plate is at least provided with three H-shaped rod pieces.
Furthermore, the axes of the H-shaped rod pieces penetrate through the circle center of the disc cover plate.
Further, the H-shaped rod piece is made of an aluminum alloy material.
Furthermore, the bolt holes of the disk cover plate are distributed along the radial direction of the disk cover plate, and the disk cover plate is composed of a flat plate or an arc panel.
Further, the holes are one of circular, oval, rectangular or polygonal.
Further, the fixing piece is one of a Hooke bolt, a common bolt or a high-strength bolt.
Compared with the prior art, the invention has the following beneficial effects:
the holes are formed in the web plate with the lower stress of the H-shaped rod piece, so that the material consumption of a space grid structure can be reduced, the bending rigidity of the rod piece can be ensured, the self weight of the structure can be effectively reduced, and the larger structural span can be obtained. Meanwhile, the holes added on the web plate can be used for classifying and shuttling pipes and wires, so that the occupation of the pipes and the wires in space is reduced, the building space is saved, the structure is neat and attractive, the utilization rate of materials is increased, and better economic benefit is obtained. The web plate is weakened by punching, so that the stress of the grid node is more reasonable, and the phenomenon that the joint of the disc cover plate and the flange plate is damaged before a component is avoided.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a grid node according to the present invention;
FIG. 3 is a schematic structural view of a single H-shaped rod and a disk cover plate according to the present invention;
FIG. 4 is a schematic structural view of an H-shaped rod member according to the present invention;
FIG. 5 is a schematic diagram of a grid node structure when the holes are square according to the present invention;
fig. 6 is a schematic diagram of a mesh node structure when the holes are hexagonal in the present invention.
Description of reference numerals:
1-H type rod piece, 2-disc cover plate, 3-fixing piece, 11-flange plate, 12-web plate and 13-hole.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 4, a single-layer aluminum alloy spatial grid structure with a web plate provided with holes comprises grid nodes connected with each other, wherein each grid node is composed of an H-shaped rod 1 and a disc cover plate 2; the end parts of the H-shaped rod pieces 1 are arranged in the paired disc cover plates 2 in a surrounding mode, two ends of a flange plate 11 of each H-shaped rod piece 1 are fixedly connected with the disc cover plates 2 through fixing pieces 3, and web plates 12 of the H-shaped rod pieces 1 are provided with holes 13 at equal intervals; the disc cover plate 2 is provided with at least three H-shaped rod pieces 1, in the embodiment, the number of the H-shaped rod pieces 1 is six, bolt holes of the disc cover plate 2 are distributed along the radial direction of the disc cover plate 2, and the disc cover plate 2 is composed of a flat plate or an arc panel; the axis of the H-shaped rod piece 1 penetrates through the circle center of the disc cover plate 2, and the H-shaped rod piece 1 is made of an aluminum alloy material; the holes 13 are one of circular, oval, rectangular or polygonal; the fixing member 3 is one of a hooke bolt, a normal bolt or a high-strength bolt, in this embodiment, the normal bolt is made of aluminum alloy or stainless steel, and in order to prevent the fixing member 3 from being electrochemically corroded with the aluminum alloy, the normal bolt may also be made of steel material subjected to reliable surface treatment such as hot-dip galvanizing, electrogalvanizing or aluminizing.
The H-shaped rod pieces 1 which are provided with the holes 13 and are formed by webs 12 at equal intervals are connected through the disc cover plate 2 by using common bolts. The H-shaped rod piece 1 is made of aluminum alloy formed by hot extrusion, and the H-shaped rod piece 1 comprises two flange plates 11 and a web plate 12; the upper and lower disk cover plates 2 are connected with the upper and lower flange plates 11 of the H-shaped rod 1 with the holes on the web plates 12 respectively by common bolts, thereby forming a single grid node, and then the grid nodes are connected with each other to form a single-layer aluminum alloy space grid structure. It should be noted here that the usage specification, number, and arrangement mode of the ordinary bolts should be determined according to the stress magnitude of the grid node and the actual size, and the radius and thickness of the disk cover plate 2 also need to be determined according to the stress magnitude of the node, which is a common design knowledge that should be understood by those skilled in the art and will not be described herein.
The size and the distance of the holes 13 on the H-shaped rod 1 need to be determined according to the stress of the rod, so that the web 12 is prevented from local buckling. In addition, no holes or increased hole spacing may be provided at the junctions of the grid nodes or at locations that are subjected to relatively high concentrated loads, again to ensure that the web 12 does not buckle locally. The radius of the disc cover plate 2 needs to meet the requirement that the H-shaped rod pieces 1 do not interfere with each other, the fixing piece 3 is connected with the H-shaped rod pieces 1, the axis of each H-shaped rod piece 1 passes through the circle center of the disc cover plate 2, and the arching amount of the disc cover plate 2 depends on the included angle between the corresponding H-shaped rod piece 1 and the tangent plane of the grid node.
The single-layer aluminum alloy space grid structure can be a cylindrical reticulated shell, a spherical reticulated shell, a saddle-shaped reticulated shell or other single-layer reticulated shells; the grid form can adopt a connected square form, a rib ring form, a short-range line form, a Kaiwait form and other grid forms. As shown in fig. 5 and 6, the holes 13 formed in the web 12 may also be square or hexagonal.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. The utility model provides a single-layer aluminum alloy space grid structure that hole was opened to web, includes interconnect's grid node, its characterized in that: the grid nodes are composed of H-shaped rod pieces and disk cover plates; the end parts of the H-shaped rod pieces are arranged in the paired disc cover plates in a surrounding mode, two ends of a flange plate of each H-shaped rod piece are fixedly connected with the disc cover plates through fixing pieces, and holes are formed in web plates of the H-shaped rod pieces at equal intervals; the disc cover plate is at least provided with three H-shaped rod pieces.
2. The single-layer aluminum alloy spatial grid structure with the punched web plate as claimed in claim 1, wherein: the axis of the H-shaped rod piece penetrates through the circle center of the disc cover plate.
3. The single-layer aluminum alloy spatial grid structure with the punched web plate as claimed in claim 2, wherein: the H-shaped rod piece is made of an aluminum alloy material.
4. The single-layer aluminum alloy spatial grid structure with the punched web plate as claimed in claim 1, wherein: the bolt holes of the disk cover plate are distributed along the radial direction of the disk cover plate, and the disk cover plate is composed of a flat plate or an arc panel.
5. The single-layer aluminum alloy spatial grid structure with the punched web plate as claimed in claim 1, wherein: the holes are one of circular, oval, rectangular or polygonal.
6. The single-layer aluminum alloy spatial grid structure with the punched web plate as claimed in claim 1, wherein: the fixing piece is one of a Hooke bolt, a common bolt or a high-strength bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010288773.XA CN111424823A (en) | 2020-04-13 | 2020-04-13 | Single-layer aluminum alloy space grid structure with web plate provided with holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010288773.XA CN111424823A (en) | 2020-04-13 | 2020-04-13 | Single-layer aluminum alloy space grid structure with web plate provided with holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111424823A true CN111424823A (en) | 2020-07-17 |
Family
ID=71556334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010288773.XA Pending CN111424823A (en) | 2020-04-13 | 2020-04-13 | Single-layer aluminum alloy space grid structure with web plate provided with holes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111424823A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007239310A (en) * | 2006-03-09 | 2007-09-20 | Nippon Steel Corp | Beam joint structure and structure |
| CN203613652U (en) * | 2013-10-14 | 2014-05-28 | 凌达 | Side plate strengthening honeycomb type H-shaped steel beam frame joint component |
| CN104674943A (en) * | 2015-02-03 | 2015-06-03 | 天津大学 | Hub-cover plate composite aluminum-alloy bilayer grid structure |
| CN106759912A (en) * | 2017-01-20 | 2017-05-31 | 天津大学 | A kind of profiled-cross-section double-layer aluminium alloy spatial mesh structure |
| CN209494039U (en) * | 2018-12-14 | 2019-10-15 | 北京工业大学 | H-type rod piece part holes in soffit plate-type node |
-
2020
- 2020-04-13 CN CN202010288773.XA patent/CN111424823A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007239310A (en) * | 2006-03-09 | 2007-09-20 | Nippon Steel Corp | Beam joint structure and structure |
| CN203613652U (en) * | 2013-10-14 | 2014-05-28 | 凌达 | Side plate strengthening honeycomb type H-shaped steel beam frame joint component |
| CN104674943A (en) * | 2015-02-03 | 2015-06-03 | 天津大学 | Hub-cover plate composite aluminum-alloy bilayer grid structure |
| CN106759912A (en) * | 2017-01-20 | 2017-05-31 | 天津大学 | A kind of profiled-cross-section double-layer aluminium alloy spatial mesh structure |
| CN209494039U (en) * | 2018-12-14 | 2019-10-15 | 北京工业大学 | H-type rod piece part holes in soffit plate-type node |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20200717 |