Spider web layered honeycomb bionic aluminum alloy pipe-concrete combination column

Abstract

The utility model relates to the technical field of marine construction engineering, and provides a spider web layered honeycomb bionic aluminum alloy pipe-concrete composite column. The spider web layered honeycomb bionic aluminum alloy pipe-concrete composite column comprises a honeycomb aluminum alloy sandwich layer, a self-similar hexagonal aluminum alloy pipe, quadrilateral concrete filled in the aluminum alloy pipe and a connecting aluminum plate between the honeycomb aluminum alloy sandwich layer and the aluminum alloy pipe which are sequentially arranged from outside to inside. And the aluminum alloy and the cellular network formed by the aluminum alloy are filled with the quadrilateral concrete. By the adoption of the honeycomb aluminum alloy sandwich layer, the honeycomb aluminum alloy sandwich layer has an excellent buffering effect on ship impact in the marine environment, effective heat insulation, damp heat resistance and corrosion resistance are achieved, the constraining force on concrete is enhanced through the honeycomb network structure, the pressure resistance and stability of the whole structure are improved, external buckling damage which is likely to happen to a traditional aluminum pipe is remarkably reduced, and the service life of the aluminum pipe is prolonged. The defects of an existing structure are overcome.

Description

Technical Field

[0001] The invention relates to the field of marine construction engineering, and in particular to a spider web layered honeycomb bionic aluminum alloy tube-concrete composite column. Background Art

[0002] With the increasing global demand for sustainable development and green building materials, aluminum alloys are widely used in marine engineering due to their lightweight, high strength and excellent corrosion resistance. However, in the complex and harsh marine environment, the compressive bearing capacity and impact resistance of aluminum alloy structures face severe challenges. The continuous impact of waves, collisions with ships, and corrosion from salt spray can all cause significant damage to aluminum alloy columns. Especially under high loads, aluminum alloy columns are prone to local buckling and material fatigue failure, leading to structural failure. In addition, under the dual effects of long-term dynamic impact and corrosion stress, aluminum alloy columns may also suffer from stress corrosion cracking and impact damage, which greatly limits their durability and safety in the marine environment. Therefore, how to improve the compressive and impact resistance of aluminum alloy structures in the marine environment has become an important issue that needs to be addressed urgently.

[0003] In recent years, the application of bionic structures in the engineering field has become increasingly widespread, and they are of great significance to structural optimization and the improvement of material utilization efficiency. Bionics has developed engineering materials and structural forms with excellent mechanical properties by imitating exquisite structures in nature, such as spider webs and honeycombs. The self-similar structure of the spider web can evenly distribute stress under the action of external forces, and has excellent tensile and impact resistance, effectively avoiding structural damage caused by local stress concentration. The honeycomb structure, with its dense arrangement of hexagonal units, exhibits the characteristics of light weight and high strength, especially in terms of load-bearing capacity and energy absorption. The application of these bionic structures has been widely penetrated into fields such as aerospace, automobile manufacturing and bridge construction. For example, honeycomb aluminum alloy sandwich is widely used to improve the stability and impact resistance of structures due to its light weight, high rigidity and effective energy absorption, while greatly improving material utilization efficiency.

[0004] In recent years, honeycomb aluminum alloy interlayers have been widely used in construction projects. Due to their reduced deadweight and enhanced compressive and impact resistance, they are often used in high-load-bearing structures such as curtain walls and partitions. In marine engineering, honeycomb aluminum alloy structures effectively disperse external forces, demonstrating excellent impact resistance, especially in the face of waves and collisions. Their corrosion resistance enables them to withstand salt spray erosion and extend their service life. Combined with the spider web bionic structure design, the aluminum alloy columns further enhance their impact and fatigue resistance, evenly distribute stress, and improve buckling and stress corrosion under high loads, adapting to the harsh conditions of the marine environment. Therefore, the application of honeycomb bionic structures in marine engineering not only improves the safety and stability of the structure, but also provides strong support for extending the structural life and reducing maintenance costs, which is of great significance. Summary of the Invention

[0005] This invention addresses the shortcomings of existing technologies by drawing inspiration from the layered structure of a spider web. It provides a spiderweb-like layered honeycomb biomimetic aluminum alloy tube-concrete composite column, particularly suitable for marine engineering, bridges, and coastal construction. Compared to existing aluminum alloy structures, this composite column significantly improves its compressive, impact, and corrosion resistance.

[0006] To achieve the above object, the solution of the present invention is:

[0007] A spiderweb-like layered honeycomb biomimetic aluminum alloy tube-concrete composite column comprises a honeycomb aluminum alloy core layer, self-similar hexagonal aluminum alloy tubes, quadrilateral concrete filled within the aluminum alloy tubes, and an aluminum plate connecting the honeycomb aluminum alloy core layer and the aluminum alloy tubes. The quadrilateral concrete is filled within the honeycomb network formed by the aluminum alloy.

[0008] The aluminum alloy material is preferably an aluminum-magnesium-silicon alloy having excellent corrosion resistance and suitable for long-term exposure to coastal and marine environments. Aluminum-magnesium-silicon alloy;

[0009] The honeycomb aluminum alloy sandwich layer is in the shape of a hexagonal column.

[0010] The edge structure of the honeycomb aluminum alloy sandwich layer structure adopts the end riveting sealing technology, or the upper and lower panels are directly glued / co-cured together to perform end sealing.

[0011] The thickness of the hexagonal honeycomb aluminum alloy sandwich layer is optimized according to external load requirements to provide optimal energy absorption and buffering capabilities.

[0012] The wall thickness of the hexagonal aluminum alloy tube is optimized according to the force requirements and structural functions of the column. The thickness of the outer aluminum alloy tube is larger, and the thickness of the inner aluminum alloy tube is relatively smaller.

[0013] The concrete is high strength compression concrete

[0014] The side length ratios of the hexagonal aluminum alloy tube and the honeycomb sandwich layer are designed to be a self-similar structure.

[0015] The aluminum alloy tube and the honeycomb sandwich layer are connected via an aluminum alloy connecting plate, and the connecting plate is fixed by welding.

[0016] The honeycomb aluminum alloy network has a multi-layer hierarchical structure, and the thickness of each layer can be adjusted according to the distribution of external loads.

[0017] The composite column structure is further combined with surface coating technology, and an anti-corrosion coating is sprayed on the outer surface.

[0018] The application discloses a manufacturing method of a spider web layered honeycomb bionic aluminum alloy pipe-concrete composite column.

[0019] (1) material preparation: selecting aluminum alloy material suitable for the structure, preferably aluminum-magnesium-silicon alloy, and cutting aluminum alloy plates for outer and inner aluminum alloy pipes according to the design specification;

[0020] (2) honeycomb aluminum alloy core layer manufacturing: cutting aluminum alloy material into upper and lower aluminum alloy plates with the size of a hexagonal column, and the honeycomb core is a material composed of thin-walled cavity cells regularly arranged in the plane, the cell structure is a classical aluminum honeycomb structure with a regular hexagon, the upper and lower aluminum alloy plates and the honeycomb core in the middle are bonded together through an adhesive, and the edges of the honeycomb aluminum alloy core layer are sealed by a riveting sealing or gluing / curing process, so that the honeycomb aluminum alloy core layer is obtained;

[0021] (3) hexagonal aluminum alloy pipe manufacturing: manufacturing self-similar outer and inner hexagonal aluminum alloy pipes according to the design.

[0022] (4) positioning treatment: placing the aluminum pipe in the honeycomb aluminum alloy core layer, and positioning the honeycomb aluminum alloy core layer and the aluminum alloy pipe, so that the centers of the honeycomb aluminum alloy core layer and the aluminum alloy pipe coincide, and the two ends of the honeycomb aluminum alloy core layer are flush with the two ends of the aluminum alloy pipe;

[0023] (5) connection of the aluminum alloy pipe and the honeycomb core layer: connecting the hexagonal aluminum alloy pipe and the honeycomb aluminum alloy core layer by using an aluminum alloy connecting plate, and fixing the aluminum alloy connecting plate by using a welding technology;

[0024] (6) honeycomb network concrete filling: pouring concrete into the honeycomb network of the honeycomb aluminum alloy pipe-concrete composite column, and vibrating and compacting the concrete by using a vibrating tool, so that the core concrete of the honeycomb aluminum alloy pipe-concrete composite column is formed;

[0025] (7) concrete curing: curing the core concrete and the intermediate layer concrete after pouring, so that the honeycomb aluminum alloy pipe-concrete composite column composed of the honeycomb aluminum alloy core layer, the self-similar hexagonal aluminum alloy pipe, the four-edge concrete filled in the aluminum alloy pipe and the connecting aluminum plate is obtained;

[0026] (8) corrosion prevention treatment of the outer surface of the structure: performing corrosion prevention coating treatment on the outer surface of the composite column, and performing quality detection after the coating is dried, so that the coating is complete and the corrosion prevention effect is good.

[0027] After the structure is used, the honeycomb aluminum alloy pipe-concrete composite column based on the spider web layered structure in nature has the following beneficial effects:

[0028] (1) The aluminum alloy tube and the honeycomb sandwich layer are welded and fixed by aluminum alloy connecting plates, ensuring the stability and durability of the overall structure. Through precise welding technology, the composite column can maintain good structural integrity under long-term dynamic loads and environmental stresses.

[0029] (2) The honeycomb network of the composite column is filled with high-strength compressive concrete, which works together with the honeycomb aluminum alloy network structure to further enhance the compressive performance of the column.

[0030] (3) The multi-layer self-similar structural design of the hexagonal honeycomb aluminum alloy sandwich layer and the aluminum alloy tube enables the composite column to evenly disperse stress under the action of external loads, avoid local stress concentration, and greatly improve the overall compressive resistance.

[0031] (4) The honeycomb network structure enhances the restraint capacity of concrete, placing it in a state of compression on three sides, thereby improving the bearing capacity of the composite column. The honeycomb network is equivalent to the stiffener in the aluminum tube, providing a restraint between the aluminum tube and the concrete, thereby strengthening the integrity and composite effect of the aluminum tube and the concrete. Combined with the excellent tensile properties of the honeycomb network, it can effectively solve the problem of local buckling of the existing aluminum tube-concrete structure, and is suitable for high-load applications in marine environments.

[0032] (5) The hexagonal honeycomb aluminum alloy sandwich structure can effectively absorb and disperse impact energy, making the composite column exhibit excellent impact resistance when facing external forces such as wave impact and ship collision. At the same time, the spider web-like layered bionic structure design further improves the stability and safety of the composite column when subjected to impact.

[0033] (6) Aluminum alloy has excellent corrosion resistance and is particularly suitable for structures exposed to marine and coastal environments for a long time. The outer layer of aluminum alloy isolates the internal concrete and aluminum alloy pipes from the external environment, effectively improving the corrosion resistance of the overall structure. In addition, by spraying an anti-corrosion coating on the outer surface of the composite column, its resistance to salt spray corrosion is further enhanced, thereby extending the service life of the structure.

[0034] In summary, the composite column has high compressive, impact and corrosion resistance, and is particularly suitable for use in marine bridges, coastal buildings and various infrastructures exposed to harsh environments. It significantly improves the safety and durability of the structure and reduces maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic structural diagram of a spider web layered honeycomb bionic aluminum alloy tube-concrete composite column of the present invention;

[0036] Figure 2 This is a schematic cross-sectional view of a spider web layered honeycomb bionic aluminum alloy tube-concrete composite column of the present invention.

[0037] Figure 3 This is a schematic longitudinal cross-sectional view of the honeycomb aluminum alloy sandwich of a spider web layered honeycomb bionic aluminum alloy tube-concrete composite column of the present invention.

[0038] Figure 4 The figure is a schematic cross-sectional view of a honeycomb aluminum alloy sandwich of a spider web layered honeycomb bionic aluminum alloy tube-concrete composite column of the present invention.

[0039] In the figure: 1-honeycomb aluminum alloy interlayer, 2-aluminum alloy tube, 3-concrete, 4-connecting aluminum plate, 5-honeycomb aluminum alloy sandwich structure upper panel, 6-honeycomb aluminum alloy sandwich layer, 7-honeycomb aluminum alloy sandwich structure lower panel. DETAILED DESCRIPTION

[0040] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Example

[0041] A method for manufacturing a spider web layered honeycomb bionic aluminum alloy tube-concrete composite column comprises the following steps:

[0042] (1) Material preparation: Select aluminum alloy materials suitable for the structure according to the marine environment and building type, and cut aluminum alloy plates for the outer and inner aluminum alloy tubes according to the design specifications;

[0043] (2) Production of honeycomb aluminum alloy sandwich layer: The aluminum alloy material is cut into upper and lower aluminum alloy panels of hexagonal column. The middle honeycomb core is composed of a thin-walled aluminum foil matrix, adopting a regular hexagonal cell structure, and a honeycomb network is formed by regularly arranged in-plane structures. High-strength adhesives such as epoxy resin adhesives are used to bond the upper and lower aluminum alloy panels to the honeycomb core. At the same time, to ensure the sealing and overall strength of the structure, the edges are sealed with end riveting technology, and bonding / co-curing process can also be used;

[0044] (3) Fabrication of hexagonal aluminum alloy tubes: According to the design specifications, the same alloy material is used to fabricate inner and outer hexagonal aluminum alloy tubes with self-similar structures. The thickness of the outer aluminum alloy tube, i.e., the lower panel of the honeycomb aluminum alloy sandwich layer, is relatively large to ensure that it can withstand high external loads and provide sufficient restraint for the concrete; while the thickness of the inner aluminum alloy tube is relatively small to reduce the overall deadweight of the composite column, while ensuring the synergistic effect between the inner and outer tubes and improving the stability of the overall structure.

[0045] (4) Positioning: Place the prepared inner and outer hexagonal aluminum alloy tubes in the honeycomb aluminum alloy sandwich layer, ensuring that the centroids of the honeycomb sandwich layer and the aluminum alloy tube coincide with each other, and the end positions of the two should be consistent and fixed with positioning tools;

[0046] (5) Combination of aluminum alloy tube and honeycomb sandwich layer: Aluminum alloy connecting plates are used to connect the aluminum alloy tube and the honeycomb sandwich layer, and high-precision welding technology is used to fix the connecting plates to ensure the integrity and stability of the structure.

[0047] (6) Filling the spider web layered honeycomb network structure with concrete: Select high-strength compressive concrete and pour the concrete into the aluminum alloy tube-honeycomb structure. Use a vibrating tool to vibrate the concrete to ensure that the concrete is densely filled and evenly distributed in the honeycomb structure, thus forming the core load-bearing part of the composite column.

[0048] (7) Concrete curing: Standardized curing treatment of concrete to ensure it has sufficient strength and durability.

[0049] (8) Anti-corrosion treatment of the external surface of the structure: In order to enhance the corrosion resistance of the composite column, especially in the case of long-term exposure in marine and coastal buildings, the external surface of the aluminum alloy tube is sprayed with an anti-corrosion coating. Through multi-layer coating treatment, its ability to resist salt spray corrosion is further improved, ensuring the long-term performance of the column in harsh environments. Example

[0050] A method for manufacturing a spider web layered honeycomb bionic aluminum alloy tube-concrete composite column comprises the following steps:

[0051] Material preparation: Select aluminum alloy materials suitable for the structure based on the marine environment and building type, and cut aluminum alloy sheets for the outer and inner aluminum alloy tubes according to design specifications;

[0052] Multi-layer design of the honeycomb aluminum alloy sandwich layer: The honeycomb aluminum alloy sandwich layer adopts a multi-layer hierarchical structure. The thickness and unit size of each layer can be optimized according to the load distribution. The outer layer is thicker to provide stronger energy absorption and cushioning, while the inner layer is thinner to reduce material usage and weight.

[0053] Fabrication of the hexagonal aluminum alloy tubes: Based on the design specifications, the same alloy was used to create the inner and outer layers of self-similar hexagonal aluminum alloy tubes. The outer layer, representing the lower panel of the honeycomb aluminum alloy sandwich layer, is thicker to ensure it can withstand high external loads and provide sufficient restraint for the concrete. The inner layer, on the other hand, is relatively thin to reduce the overall deadweight of the composite column while ensuring synergy between the inner and outer tubes and enhancing overall structural stability.

[0054] Positioning: Place the prepared inner and outer hexagonal aluminum alloy tubes in the honeycomb aluminum alloy sandwich layer, ensuring that the centroids of the honeycomb sandwich layer and the aluminum alloy tube coincide with each other. The end positions of the two should be consistent and fixed with positioning tools.

[0055] Composite column assembly: Each layer of the multi-layered honeycomb aluminum alloy sandwich structure is assembled sequentially and welded to the inner and outer aluminum alloy tube layers using aluminum alloy connecting plates. High-strength welding processes ensure a secure bond between the honeycomb sandwich layer and the aluminum alloy tube. Each layer is precisely positioned and fixed to maintain consistent centroid alignment, thereby enhancing overall structural stability.

[0056] Multi-layer concrete filling: In multi-layer structures, the concrete filling is divided into a core and an intermediate layer. The core concrete is filled inside the hexagonal aluminum alloy tubes, while the intermediate layer concrete is filled in each layer of the honeycomb structure. Professional vibrating tools are used to ensure the density and uniformity of the concrete filling process, preventing voids and improving the overall bearing capacity.

[0057] Concrete curing: After pouring, standard curing treatment is carried out to ensure that the strength of the concrete meets the design requirements.

[0058] Anti-corrosion Coating and Surface Treatment: The exterior surfaces of the modular columns are spray-coated with a specialized anti-corrosion coating. This coating is formulated to resist salt spray corrosion and is suitable for marine and coastal environments. The thickness of each coating layer undergoes rigorous quality testing to ensure long-term corrosion protection and enhance the durability and service life of the columns. Example

[0059] A method for manufacturing a spider web layered honeycomb bionic aluminum alloy tube-concrete composite column comprises the following steps:

[0060] Material preparation: Select aluminum alloy materials suitable for the structure based on the marine environment and building type, and cut aluminum alloy sheets for the outer and inner aluminum alloy tubes according to design specifications;

[0061] Production of the honeycomb aluminum alloy sandwich layer: The aluminum alloy material is cut into upper and lower aluminum alloy panels with hexagonal columns. The central honeycomb core is composed of a thin-walled aluminum foil matrix with a regular hexagonal cell structure. The honeycomb network is formed by regularly arranged in-plane structures. A special high-strength adhesive is used to bond the upper and lower aluminum alloy panels to the honeycomb core. At the same time, to ensure the sealing and overall strength of the structure, the edges are sealed with end riveting technology. Gluing / co-curing processes are also optional.

[0062] Fabrication of the hexagonal aluminum alloy tubes: Based on the design specifications, the same aluminum-magnesium-silicon alloy was used to create the inner and outer layers of self-similar hexagonal aluminum alloy tubes. The outer layer, representing the lower panel of the honeycomb aluminum alloy sandwich layer, is thicker to ensure it can withstand high external loads and provide sufficient restraint for the concrete. The inner layer, on the other hand, is relatively thin to reduce the overall deadweight of the composite column while ensuring synergy between the inner and outer tubes, enhancing overall structural stability.

[0063] Positioning: Place the prepared inner and outer hexagonal aluminum alloy tubes in the honeycomb aluminum alloy sandwich layer, ensuring that the centroids of the honeycomb sandwich layer and the aluminum alloy tube coincide with each other. The end positions of the two should be consistent and fixed with positioning tools.

[0064] Combination of aluminum alloy tube and honeycomb sandwich layer: Aluminum alloy connecting plates are used to connect the aluminum alloy tube and the honeycomb sandwich layer, and high-precision welding technology is used to fix the connecting plates to ensure the integrity and stability of the structure.

[0065] Concrete Filling: High-strength, compressive concrete is poured into the aluminum alloy tube-honeycomb structure, but the innermost aluminum tube is left unfilled, forming a hollow aluminum alloy concrete column to reduce the structure's deadweight. Vibrating the concrete with a vibrating tool ensures it is densely packed and evenly distributed throughout the honeycomb structure, forming the core, load-bearing portion of the composite column.

[0066] Concrete curing: Standardized curing treatment of concrete to ensure it has sufficient strength and durability.

[0067] External Surface Anti-corrosion Treatment: To enhance the corrosion resistance of the composite columns, especially in situations of long-term exposure in marine and coastal structures, an anti-corrosion coating is sprayed onto the outer surface of the aluminum alloy tubes. This multi-layer coating further enhances their resistance to salt spray corrosion, ensuring the long-term performance of the columns in harsh environments.

[0068] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A spiderweb-like layered honeycomb biomimetic aluminum alloy tube-concrete composite column, comprising a honeycomb aluminum alloy sandwich layer, self-similar hexagonal aluminum alloy tubes, quadrilateral concrete filled in the aluminum alloy tubes, and an aluminum plate connecting the honeycomb aluminum alloy sandwich layer and the aluminum alloy tubes, arranged sequentially from the outside to the inside. The hexagonal aluminum alloy tube and the regular hexagonal honeycomb aluminum alloy sandwich layer form a honeycomb network structure, and the concrete is quadrilaterally filled in the honeycomb network inside the aluminum alloy tube.

2. The spider web layered honeycomb biomimetic aluminum alloy tube-concrete composite column according to claim 1, characterized in that: The edge structure of the regular hexagonal honeycomb aluminum alloy sandwich structure adopts end riveting sealing technology, or the upper and lower panels are directly glued / co-cured together to perform end sealing.

3. The spider web layered honeycomb biomimetic aluminum alloy tube-concrete composite column according to claim 1, characterized in that: The regular hexagonal honeycomb aluminum alloy sandwich layer is in the shape of a regular hexagonal column.

4. The spider web layered honeycomb biomimetic aluminum alloy tube-concrete composite column according to claim 1, characterized in that: The thickness of the regular hexagonal honeycomb aluminum alloy sandwich layer is optimized according to external load requirements to provide optimal energy absorption and buffering capabilities.

5. The spider web layered honeycomb biomimetic aluminum alloy tube-concrete composite column according to claim 1, characterized in that: The wall thickness of the hexagonal aluminum alloy tube is optimized according to the force requirements and structural functions of the column. The thickness of the outer aluminum alloy tube is larger, and the thickness of the inner aluminum alloy tube is relatively smaller.

6. The spider web layered honeycomb biomimetic aluminum alloy tube-concrete composite column according to claim 1, characterized in that: The concrete is high-strength compression concrete.

7. A spider web layered honeycomb biomimetic aluminum alloy tube-concrete composite column according to claim 1, characterized in that: The side length ratios of the hexagonal aluminum alloy tube and the honeycomb aluminum alloy sandwich layer are designed to be a self-similar structure.

8. The spider web layered honeycomb biomimetic aluminum alloy tube-concrete composite column according to claim 1, characterized in that: The aluminum alloy tube and the honeycomb sandwich layer are connected via an aluminum alloy connecting plate, and the connecting plate is fixed by welding.

9. The spider web layered honeycomb bionic aluminum alloy tube-concrete composite column according to claim 1, characterized in that: The honeycomb network structure formed by the honeycomb aluminum alloy sandwich layer has a multi-layer hierarchical structure, and the thickness of each layer can be adjusted according to the distribution of external loads.

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