CN115961735A - Dot matrix material based on arch structure - Google Patents
Dot matrix material based on arch structure Download PDFInfo
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- CN115961735A CN115961735A CN202211571591.9A CN202211571591A CN115961735A CN 115961735 A CN115961735 A CN 115961735A CN 202211571591 A CN202211571591 A CN 202211571591A CN 115961735 A CN115961735 A CN 115961735A
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- arch
- arch structure
- lattice material
- unit cell
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- 239000011159 matrix material Substances 0.000 title claims description 3
- 239000000463 material Substances 0.000 claims abstract description 38
- 239000011449 brick Substances 0.000 claims description 2
- 239000004567 concrete Substances 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 238000005452 bending Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
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Abstract
The invention discloses a lattice material based on an arch structure, which comprises N arch lattice unit cells, wherein each unit cell is formed by connecting a plurality of groups of arch structures with pull rods. The lattice material based on the arch structure is formed by arraying unit cells along the x direction and the y direction of a space coordinate system for a certain number of times and then mirroring and arraying along the z direction. The lattice material based on the arch structure is a non-rectangular structure under specific load, and only axial action exists in the cross section of the lattice material, so that the material performance can be better exerted. The horizontal thrust is related to the span, and the smaller the span is, the smaller the thrust is; horizontal thrust is related to height, with greater height providing less thrust.
Description
Technical Field
The invention belongs to the technical field of engineering structures, and particularly relates to a novel arched lattice material structure.
Background
The arch structure is composed of an arch ring and a support thereof. Under the action of external load, the arch ring mainly bears axial pressure, and compared with a beam with the same span, the arch structure has smaller bending moment and shearing force, thereby saving materials, improving rigidity, spanning larger space and fully playing the material properties of high compressive strength and low tensile strength. The support can be made into a buttress capable of bearing vertical force, horizontal thrust and bending moment; the vertical force can be born by a wall, a column or a foundation, and the horizontal thrust can be born by a pull rod. The arch structure is widely applied to bridges and large public buildings mainly as a bearing structure.
The lattice material has excellent performances in the aspects of thermal, electrical and optical, and is considered as a structural and functional integrated material with the most application potential. The lattice material is a periodic truss structure formed by nodes and rod pieces, the impact deformation capability is poor, and stress concentration is easily formed at the nodes. Arch structures have greater mechanical advantage than truss structures. In view of the above problems, it is necessary to design a lattice material based on an arch structure.
Disclosure of Invention
The invention aims to provide an arch lattice material which saves materials, improves rigidity and spans a larger space.
The technical scheme adopted by the invention is a lattice material based on an arch structure, which comprises N single cells, wherein each single cell consists of a plurality of arch structure units, and each arch structure unit is formed by mutually connecting arch structures with pull rods; the two arch structures with the pull rods are arranged symmetrically up and down, and the two arch structures are tangent to form an arch structure unit; two arch structure units are arranged in a mutually crossed way or four arch structure units are mutually vertically connected to form a unit cell. The unit cells are arrayed and mirrored along the directions of x, y and z to obtain the arch lattice material.
Furthermore, the unit cell is connected in different ways among the arch structures with the pull rods, and the projection of the unit cell in the z direction is square or criss-cross.
Furthermore, the unit cell can be made of non-metallic materials with high compressive strength and low tensile strength, such as bricks, stones, concrete and the like.
The unit cell is of a symmetrical structure, and projection planes along the x direction, the y direction and the z direction are symmetrical.
Has the advantages that:
1. the arch lattice material of the invention generates horizontal thrust under the action of vertical load, and the bending moment on the arch section is smaller than the bending moment of a corresponding simply supported beam due to the existence of the thrust, so that the arch structure mainly bears pressure and can better exert the material performance.
2. The arch lattice material is a non-rectangular structure, and the structure only generates axial force but not bending moment and shearing force under specific load.
3. The arch lattice material has small section and large span, and can fully utilize the compression strength of the material.
Drawings
FIG. 1 is a top view of a single cell of the Arch lattice material of the present invention.
FIG. 2 is a left side view of the arch lattice material unit cell of the present invention.
FIG. 3 is a schematic diagram of the continuation process of the arch lattice material unit cell of the present invention.
FIG. 4 is a schematic diagram of a Z-direction projected square diagonal Arch lattice material unit cell of the present invention.
List of reference numbers:
FIG. 4 a) is a perspective view of an arch lattice material unit cell with a square diagonal projected in the z direction; FIG. 4 b) is the left view of the arch lattice material unit cell with the square diagonal projected in the z direction; FIG. 4 c) is a top view of the lattice of Arch Material cells with a projected square diagonal in the z-direction.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in FIGS. 1-3, the lattice material unit cell based on the arch structure provided by the invention is formed by connecting 4 groups of tie rods with the arch structure into a square, and then obtaining 8 groups of lattice material unit cells based on the arch structure with the arch structure and formed by the arch structure with the tie rods through the mirror image of the top end of the arch ring of the arch structure. The lattice material based on the arch structure is formed by arraying a unit cell along the x direction and the y direction for a certain number of times and then arraying and mirroring along the z direction.
As shown in FIG. 4, the arch lattice material unit cell provided by the invention is formed by intersecting 2 groups of pull rods of an arch structure, and then obtaining the lattice material unit cell based on the arch structure, which is formed by 4 groups of arch structures with the pull rods, through mirror images of the top ends of arch rings of the arch structure, wherein the top view of the lattice material unit cell is a square diagonal line formed by intersecting the pull rods of the arch structure.
Claims (4)
1. A dot matrix material based on an arch structure is characterized by comprising N single cells, wherein each single cell is composed of a plurality of arch structure units, and each arch structure unit is formed by mutually connecting arch structures with pull rods; the two arch structures with the pull rods are arranged symmetrically up and down, and the two arch structures are tangent to form an arch structure unit; two arch structure units are mutually crossed and arranged or four arch structure units are mutually vertically connected to form a unit cell. And (4) carrying out array and mirror image on the unit cells along the directions of x, y and z to obtain the arch lattice material.
2. An arch structure-based lattice material according to claim 1, wherein the unit cells are connected in different ways by tie-rod arch structures, and the projection in the z direction is square or criss-cross.
3. An arch structure-based lattice material according to claim 1, wherein said unit cell is made of non-metallic materials such as brick, stone, concrete, etc. having high compressive strength and low tensile strength.
4. An arch structure based lattice material according to claim 1, wherein the unit cell is a symmetrical structure, and the projection planes along the x, y and z directions are symmetrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211571591.9A CN115961735A (en) | 2022-12-08 | 2022-12-08 | Dot matrix material based on arch structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211571591.9A CN115961735A (en) | 2022-12-08 | 2022-12-08 | Dot matrix material based on arch structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115961735A true CN115961735A (en) | 2023-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211571591.9A Pending CN115961735A (en) | 2022-12-08 | 2022-12-08 | Dot matrix material based on arch structure |
Country Status (1)
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070292658A1 (en) * | 2006-05-24 | 2007-12-20 | Airbus Deutschland Gmbh | Sandwich structure with frequency-selective double wall behavior |
| WO2008127301A1 (en) * | 2006-10-27 | 2008-10-23 | University Of Virginia Patent Foundation | Manufacture of lattice truss structures from monolithic materials |
| CN104603379A (en) * | 2011-05-19 | 2015-05-06 | C6工业公司 | Composite open/spaced matrix composite support structures and methods of making and using thereof |
| US20160027425A1 (en) * | 2013-03-13 | 2016-01-28 | Milwaukee School Of Engineering | Lattice structures |
| CN105369895A (en) * | 2015-10-05 | 2016-03-02 | 徐林波 | Modular combined building |
| CN107100268A (en) * | 2017-04-10 | 2017-08-29 | 东南大学 | A kind of space lattice material based on curved bar cell element |
| CN108038318A (en) * | 2017-12-19 | 2018-05-15 | 重庆大学 | A kind of variable cross-section metal lattice structure initial stiffness and plastic failure Strength co-mputation algorithm |
| CN109624449A (en) * | 2019-01-10 | 2019-04-16 | 东南大学 | A kind of shock resistance curved bar dot matrix Sandwich Plates |
-
2022
- 2022-12-08 CN CN202211571591.9A patent/CN115961735A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070292658A1 (en) * | 2006-05-24 | 2007-12-20 | Airbus Deutschland Gmbh | Sandwich structure with frequency-selective double wall behavior |
| WO2008127301A1 (en) * | 2006-10-27 | 2008-10-23 | University Of Virginia Patent Foundation | Manufacture of lattice truss structures from monolithic materials |
| CN104603379A (en) * | 2011-05-19 | 2015-05-06 | C6工业公司 | Composite open/spaced matrix composite support structures and methods of making and using thereof |
| US20160027425A1 (en) * | 2013-03-13 | 2016-01-28 | Milwaukee School Of Engineering | Lattice structures |
| CN105369895A (en) * | 2015-10-05 | 2016-03-02 | 徐林波 | Modular combined building |
| CN107100268A (en) * | 2017-04-10 | 2017-08-29 | 东南大学 | A kind of space lattice material based on curved bar cell element |
| CN108038318A (en) * | 2017-12-19 | 2018-05-15 | 重庆大学 | A kind of variable cross-section metal lattice structure initial stiffness and plastic failure Strength co-mputation algorithm |
| CN109624449A (en) * | 2019-01-10 | 2019-04-16 | 东南大学 | A kind of shock resistance curved bar dot matrix Sandwich Plates |
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