CN111877557A - Basalt fiber bionic honeycomb plate single-layer aluminum alloy combined latticed shell and construction method thereof - Google Patents
Basalt fiber bionic honeycomb plate single-layer aluminum alloy combined latticed shell and construction method thereof Download PDFInfo
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- CN111877557A CN111877557A CN202010487340.7A CN202010487340A CN111877557A CN 111877557 A CN111877557 A CN 111877557A CN 202010487340 A CN202010487340 A CN 202010487340A CN 111877557 A CN111877557 A CN 111877557A
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- aluminum alloy
- basalt fiber
- fiber bionic
- latticed shell
- plate
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- 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
- E04B1/32—Arched structures; Vaulted structures; Folded structures
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- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
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- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
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- 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
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- 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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/88—Curtain walls
- E04B2/96—Curtain walls comprising panels attached to the structure through mullions or transoms
- E04B2/962—Curtain walls comprising panels attached to the structure through mullions or transoms with angles or corners in the curtain wall
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- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2406—Connection nodes
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Panels For Use In Building Construction (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a basalt fiber bionic honeycomb plate single-layer aluminum alloy combined latticed shell which is composed of a basalt fiber bionic honeycomb plate, aluminum alloy rods and modularized aluminum alloy nodes. The aluminum alloy rod pieces are H-shaped or I-shaped in cross section, the aluminum alloy rod pieces are connected through the modularized nodes by the stainless steel bolts, and the basalt fiber bionic honeycomb plate and the aluminum alloy rod pieces are connected through the connecting pieces so that the plate and the rod work together. The invention uses special connecting pieces to reliably connect the basalt fiber bionic plate with the characteristics of light weight, high strength and durability with the rod piece of the aluminum alloy reticulated shell to form the cooperative work of the plate and the rod, and integrates the bearing and the enclosure. The honeycomb plate participates in the cooperative work of the reticulated shell structure, so that the overall rigidity and stable bearing capacity of the single-layer aluminum alloy reticulated shell with the same span are greatly improved, and the single-layer aluminum alloy reticulated shell can span larger structural span under the same load condition and can be applied to various large-span space structures.
Description
Technical Field
The invention belongs to the field of civil engineering, relates to a large-span space grid structure, and particularly relates to a basalt fiber bionic cellular board single-layer aluminum alloy combined latticed shell and a construction method thereof.
Background
Compared with a steel structure, the aluminum alloy structure has the greatest advantages of light dead weight and corrosion resistance, and can greatly reduce the long-term maintenance cost of the engineering structure. However, due to the restriction of factors such as economy, the research and application of the aluminum alloy space structure in China are much later than foreign countries, and the rapid development is not achieved until the end of the last 90 th century. To date, large-scale aluminum alloy grid structures with more than 20 bases have been built successively, wherein more than half of the aluminum alloy grid structures are single-layer aluminum alloy grid shells. Such as: nanjing niu shou shan Buddha Dinggong, Wuhan gymnasium complex gymnasium, etc. However, the lower elastic modulus of the aluminum alloy (1/3 of steel) is fatal damage, so that the integral rigidity of the single-layer aluminum alloy latticed shell structure is smaller than that of a steel latticed shell structure with the same span and the same section.
Disclosure of Invention
In order to solve the problems, the invention discloses a basalt fiber bionic honeycomb plate single-layer aluminum alloy combined latticed shell and a construction method thereof. The integral rigidity and stable bearing capacity of the single-layer aluminum alloy latticed shell with the same span are greatly improved, meanwhile, due to the introduction of the modularized nodes, the pre-assembly of the latticed shell can be realized, and the assembly efficiency of the construction of the combined latticed shell is improved.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a basalt fiber bionic honeycomb plate single-layer aluminum alloy combined latticed shell structure is composed of a basalt fiber bionic honeycomb plate, aluminum alloy rods and modularized aluminum alloy nodes. The aluminum alloy rods are generally H-shaped or I-shaped in cross section, the aluminum alloy rods are connected through modularized nodes by stainless steel bolts, and the basalt fiber bionic honeycomb plate and the aluminum alloy rods are connected in a tight fit manner through connecting pieces (generally single-side bolts or self-tapping screws) so that the plate and the rods work together.
The basalt fiber bionic honeycomb plate is characterized in that a core layer in the basalt fiber bionic honeycomb plate is an enhanced hexagonal honeycomb with round hollow small columns.
The basalt fiber bionic honeycomb plate, the modularized aluminum alloy nodes and the aluminum alloy rod piece are all manufactured in a prefabricating factory. The cross-sectional dimensions of all three components need to be determined by structural calculation and analysis.
The appearance of modularization aluminum alloy node is semi-closed box structure, and the planar projection is fan-shaped. The modular node is composed of modular units and reinforcing rings. The left side surface and the right side surface of the modular unit are provided with bolt holes which are connected with web plate holes of the I-shaped beam or the trough beam through stainless steel bolts; the upper and lower bolt holes are connected with flange holes of the I-shaped beam through stainless steel bolts; bolt holes on the rear end face are connected with the reinforcing rings through bolts, and the reinforcing rings are arranged at the intersection of the aluminum alloy rods.
After the components are manufactured in a prefabricating factory, firstly, aluminum alloy rods are spliced through modular nodes to form grid units with a certain area (figure 4), then the basalt fiber bionic honeycomb plate is installed on the grid units through connecting pieces, and finally the basalt fiber bionic honeycomb plate is transported to a construction site to be assembled in a large area to form a combined latticed shell structure.
The invention has the beneficial effects that:
(1) because the basalt fiber bionic plate participates in the joint work of the structure, the integral rigidity and the stability of the combined latticed shell are obviously improved compared with a plateless latticed shell, and a larger structural span can be spanned under the same load action.
(2) Because the plates participate in the joint work of the structure, the section size of the aluminum alloy rod piece is greatly reduced, and the economic benefit of saving 1 ton of aluminum alloy material is far higher than that of steel. Therefore, with the further increase of the structural span, the comprehensive economic performance of the structure is better than that of a steel latticed shell structure after the weight reduction effect and the long-term maintenance-free cost of the structure are considered.
(3) The invention integrates bearing and enclosure, namely the basalt fiber bionic plate is a bearing structure and a roof enclosure structure. The events that the traditional roof enclosure structure is easily lifted by strong wind due to unreliable connection and hurts pedestrians after hitting the ground are effectively avoided.
(4) All components are produced in a factory-like prefabricated mode, and due to the introduction of the modularized nodes, the assembly efficiency of the aluminum alloy combined latticed shell structure is effectively improved, and the aim of green development of building industrialization is met.
Drawings
FIG. 1 is a schematic structural view of an aluminum alloy combined latticed shell based on a basalt fiber bionic plate;
FIG. 2 is an assembly view of a modular aluminum alloy node;
FIG. 3 is a comparative view of two different configurations of composite panels;
fig. 4 is a schematic view of a modular construction grid cell.
List of reference symbols
1. The aluminum alloy member, 2, modularization aluminum alloy node, 3, the bionic honeycomb panel of basalt fiber, 4, modularization unit, 5, reinforcing ring.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Example 1:
the structure of the aluminum alloy combined latticed shell based on the basalt fiber bionic plate is composed of basalt fiber bionic honeycomb plates 3, aluminum alloy rods 1 and modular aluminum alloy nodes 2, the aluminum alloy rods 1 surround the periphery of the modular aluminum alloy nodes 2, and the space between the aluminum alloy rods 1 is paved with the basalt fiber bionic honeycomb plates 3 through bolt splicing to form grid units, so that the whole structure is light in weight, high in strength and long in service life.
Example 2:
the construction method of the aluminum alloy combined latticed shell based on the basalt fiber bionic plate comprises the following steps: after the components are manufactured in a prefabricating factory, firstly, the aluminum alloy rod pieces 1 are spliced through the modular nodes 2 to form grid units with a certain area, then the basalt fiber bionic honeycomb plate 3 is installed on the grid units 4 through connecting pieces, and finally the basalt fiber bionic honeycomb plate is transported to a construction site to be assembled in a large area to form a combined latticed shell structure. The spherical combined latticed shell structure can be applied to a large-span space structure of a large-scale stadium or a public place, and comprises a spherical combined latticed shell structure and a cylindrical combined latticed shell structure; it can also be used as large curved curtain wall structure or modeling structure of some buildings.
The invention relates to an integrated bionic honeycomb panel (called basalt fiber bionic panel for short) based on basalt fibers, which is a novel hollow composite material researched and developed by taking high-performance basalt fibers as a base material and taking the internal biological structure of a beetle front wing as a structural characteristic. The basalt fiber has a good engineering application background, and compared with other materials such as carbon fiber and the like, the basalt fiber has excellent mechanical properties such as high strength, high modulus and the like, and also has good physical properties such as corrosion resistance, oxidation resistance, high temperature resistance and the like, and higher comprehensive cost performance (the price of the basalt fiber is only 1/6 of the carbon fiber), and the basalt fiber and the composite material thereof have been widely applied in the fields of transportation, national defense construction, aerospace and the like. The basalt fiber skin and the middle honeycomb core are integrated, so that the fatal defects of poor durability and easy cracking of the traditional aluminum alloy honeycomb plate are thoroughly overcome. Meanwhile, as the core layer in the aluminum alloy honeycomb plate adopts the reinforced hexagonal honeycomb (figure 3 a) with round hollow small columns, the aluminum alloy honeycomb plate has better mechanical properties than the traditional aluminum alloy honeycomb plate (figure 3 b). Therefore, the basalt fiber bionic plate is a typical high-quality plate with light weight, high strength and durability.
In order to give full play to the advantages of light weight and corrosion resistance of the aluminum alloy latticed shell structure and make up for the defect of low elastic modulus of the aluminum alloy latticed shell structure, the invention uses a special connecting piece to reliably connect the basalt fiber bionic plate with the characteristics of light weight, high strength and durability with the rod piece of the aluminum alloy latticed shell to form a novel combined latticed shell structure with the plate and the rod working together and integrating bearing and enclosure into a whole. The earlier stage research result shows that the stable bearing capacity of the combined latticed shell structure is 2.51 times that of a single-layer aluminum alloy latticed shell with the same span because the honeycomb plate participates in the cooperative work of the latticed shell structure. Under the same load condition, the integral rigidity of the aluminum alloy combined latticed shell exceeds that of a steel latticed shell structure, namely, under the same load, a larger structural span can be spanned. Meanwhile, due to the introduction of the modular nodes, the pre-assembly of the latticed shell can be realized, and the assembly efficiency of the construction of the combined latticed shell is improved. In a word, the single-layer aluminum alloy combined latticed shell structure based on the basalt fiber bionic cellular board has a good engineering application prospect.
The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features.
Claims (5)
1. The basalt fiber bionic honeycomb plate single-layer aluminum alloy combined latticed shell is characterized in that: the combined latticed shell consists of basalt fiber bionic honeycomb plates, aluminum alloy rods and modularized aluminum alloy nodes.
2. The basalt fiber bionic cellular board single-layer aluminum alloy combined latticed shell according to claim 1, characterized in that: the basalt fiber bionic honeycomb plate is characterized in that a core layer in the basalt fiber bionic honeycomb plate is an enhanced hexagonal honeycomb with round hollow small columns.
3. The basalt fiber bionic cellular board single-layer aluminum alloy combined latticed shell according to claim 1, characterized in that: the aluminum alloy rod pieces are H-shaped or I-shaped in cross section, and are connected through the modularized nodes by stainless steel bolts.
4. The basalt fiber bionic cellular board single-layer aluminum alloy combined latticed shell according to claim 1, characterized in that: the skin of the combined reticulated shell adopts a basalt fiber bionic honeycomb plate, and the basalt fiber bionic honeycomb plate is connected with the rod piece of the single-layer aluminum alloy reticulated shell through a connecting piece so as to enable the plate and the rod to work together.
5. The basalt fiber bionic cellular board single-layer aluminum alloy combined latticed shell according to claim 1, characterized in that: the construction process comprises the following steps: after the components are manufactured in a prefabricating factory, firstly, aluminum alloy rods are spliced through modular nodes to form grid units with a certain area, then basalt fiber bionic honeycomb plates are installed on the grid units through connecting pieces, and finally the basalt fiber bionic honeycomb plates are transported to a construction site to be assembled in a large area to form a combined latticed shell structure.
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| CN202010487340.7A CN111877557A (en) | 2020-06-02 | 2020-06-02 | Basalt fiber bionic honeycomb plate single-layer aluminum alloy combined latticed shell and construction method thereof |
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| CN202010487340.7A CN111877557A (en) | 2020-06-02 | 2020-06-02 | Basalt fiber bionic honeycomb plate single-layer aluminum alloy combined latticed shell and construction method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112777002A (en) * | 2020-12-17 | 2021-05-11 | 南京晨光集团有限责任公司 | SLM forming-based bionic spider diving bell reticulated shell structure and forming method thereof |
| CN114215233A (en) * | 2021-11-23 | 2022-03-22 | 北京建工四建工程建设有限公司 | Complex hyperboloid curtain wall structure and positioning construction method thereof |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112777002A (en) * | 2020-12-17 | 2021-05-11 | 南京晨光集团有限责任公司 | SLM forming-based bionic spider diving bell reticulated shell structure and forming method thereof |
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Application publication date: 20201103 |