Bamboo self-resetting laminated slab structure and preparation method thereof

Abstract

The present application relates to a kind of bamboo muscle self-resetting laminated slab structure and its preparation method, structure includes glued bamboo net rack (1), longitudinal stress steel (2), arched glued bamboo board (3), rubber support (4) and connecting piece;Longitudinal stress steel (2) connects glued bamboo net rack (1), arched glued bamboo board (3) is connected with glued bamboo net rack (1) by connecting piece, rubber support (4) is set between arched glued bamboo board (3) and glued bamboo net rack (1), and is connected with arched glued bamboo board (3) and glued bamboo net rack (1) by connecting piece, arched glued bamboo board (3) and rubber support (4) lower part pour has first concrete layer, arched glued bamboo board (3) and rubber support (4) upper part pour has second concrete layer.Compared with prior art, the present application uses bamboo muscle and self-resetting technology, with low carbon, environmental protection, save material, improve seismic performance and reduce cost and other advantages, is expected to promote the development of sustainable building field.

Description

Technical Field

[0001] This invention relates to the field of building engineering technology, and in particular to a bamboo-reinforced self-resetting composite panel structure and its preparation method. Background Technology

[0002] Prefabricated concrete structures are an innovative technology in modern construction, characterized by the prefabrication of structural components in a factory followed by on-site assembly. This method offers several significant advantages, including rapid construction, controllable quality, and labor savings. In prefabricated concrete structures, composite slabs play a crucial role as key horizontal structural components. The advantages of composite slabs include strong integrity, high engineering efficiency, the ability to replace traditional wooden formwork, and applicability to various structural parts. These advantages make composite slabs an indispensable part of modern architecture. However, traditional composite slabs typically consist of steel mesh and concrete, leading to several problems: First, the large amount of steel reinforcement in traditional composite slabs increases construction costs and also places a burden on the environment, including resource consumption and carbon emissions. Second, once subjected to external loads or impacts, traditional composite slabs often require expensive repairs and replacements, increasing maintenance costs. Therefore, to further advance the goals of energy conservation, environmental protection, and cost control in prefabricated concrete structures, it is necessary to seek more innovative solutions. Summary of the Invention

[0003] The purpose of this invention is to provide a bamboo-reinforced self-resetting composite panel structure and its preparation method, which has low carbon, environmental protection, and self-resetting characteristics.

[0004] The objective of this invention can be achieved through the following technical solution: a bamboo-reinforced self-resetting composite plate structure, comprising a glued bamboo mesh frame, longitudinal reinforcing bars, an arched glued bamboo plate, rubber supports, and connectors;

[0005] The longitudinal reinforcing steel bars are connected to the glued bamboo mesh frame, and the arched glued bamboo panels are connected to the glued bamboo mesh frame through connectors. The rubber supports are set between the arched glued bamboo panels and the glued bamboo mesh frame, and are connected to the arched glued bamboo panels and the glued bamboo mesh frame through connectors. A first concrete layer is poured at the bottom of the arched glued bamboo panels and the rubber supports, and a second concrete layer is poured at the top of the arched glued bamboo panels and the rubber supports.

[0006] Preferably, the glued bamboo mesh frame is located within the first concrete layer, that is, the upper and lower parts of the glued bamboo mesh frame are filled with the first concrete layer.

[0007] Preferably, the glued bamboo mesh frame and the longitudinal reinforcing bars are fixed together by binding wire.

[0008] In this invention, the longitudinal reinforcing bars are laid on a plywood bamboo mesh frame and connected by steel wire.

[0009] Preferably, the plywood frame is composed of plywood panels arranged in a crisscross pattern.

[0010] More preferably, the rubber support is located at the mid-span of the glued bamboo mesh frame, and through holes for installing connectors are provided on the glued bamboo panels at both ends and at the mid-span of the glued bamboo mesh frame, and through holes for installing connectors are provided on both ends and at the mid-span of the arched glued bamboo panels.

[0011] Preferably, the glued bamboo mesh frame material includes bamboo and adhesive, and the glued bamboo mesh frame is coated with an anti-corrosion coating.

[0012] More preferably, the thickness of the bamboo in the glued bamboo mesh frame is 17-19mm, the long span is 3400-3600mm, the short span is 1100-1300mm, and the width is 90-110mm.

[0013] More preferably, the anti-corrosion coating is epoxy asphalt anti-corrosion paint.

[0014] Preferably, the arched plywood material comprises bamboo and adhesive, and the arched plywood is coated with an anti-corrosion coating.

[0015] More preferably, the thickness of the bamboo in the arched plywood material is 17-19 mm, the span is 3500-3700 mm, the width is 90-110 mm, and the arch height is 40-60 mm.

[0016] More preferably, the anti-corrosion coating is epoxy asphalt anti-corrosion paint.

[0017] Preferably, the longitudinal reinforcing steel is made of ordinary steel or high-toughness steel.

[0018] Preferably, the longitudinal reinforcing steel is HRB400 steel with a diameter of 8 to 12 mm.

[0019] Preferably, the rubber support is a rectangular column, and a through hole for installing the connector is provided at the center of the rubber support.

[0020] More preferably, the length * width * height of the rubber support is (90~110mm) * (90~110mm) * (40~60)mm.

[0021] Preferably, the rubber support material is high-toughness rubber.

[0022] Preferably, the connector is a high-strength bolt.

[0023] More preferably, the high-strength bolt includes a high-strength nut and a high-strength bolt shank.

[0024] Preferably, the first concrete layer is poured in a factory, and the second concrete layer is poured on the construction site.

[0025] A method for preparing the above-mentioned bamboo-reinforced self-resetting composite plate structure includes the following steps:

[0026] S1: Lay out the support template and fix the plywood bamboo mesh frame on the upper surface of the support template;

[0027] S2: Overlap longitudinal reinforcing bars on the fixed plywood frame, and tie the reinforcing bars with wire at the intersection of the plywood frame and the longitudinal reinforcing bars;

[0028] S3: A support formwork is installed around the plywood bamboo mesh frame and the longitudinal reinforcing steel bars to form a rectangular structure;

[0029] S4: Pour concrete into the rectangular structure to form the first concrete layer, remove the support formwork, and obtain the precast base slab structure;

[0030] S5: Transport the precast base slab structure to the predetermined location on the construction site, install it with formwork support, pour concrete into the precast base slab structure to form a second concrete layer, remove the formwork, and obtain the bamboo-reinforced self-resetting composite slab structure.

[0031] Preferably, in step S4, the first concrete layer covers the plywood mesh frame, longitudinal reinforcing bars, arched plywood panels, and the lower part of the rubber supports. The first concrete layer is compacted, smoothed, and roughened. When the strength requirements are met, the support formwork is removed to obtain the precast base plate structure.

[0032] Preferably, in step S5, the second concrete layer covers the arched plywood and the upper part of the rubber support. The poured second concrete layer is compacted and the surface is smoothed. When the strength requirement is met, the formwork is removed to obtain the bamboo reinforcement self-resetting composite board structure.

[0033] The unique construction of this invention's bamboo-reinforced self-resetting composite slab structure endows it with self-resetting properties. First, the glued bamboo mesh frame, with its crisscrossing glued bamboo panels forming a robust base, provides the overall structure with strong toughness and rigidity. Second, the longitudinal reinforcing steel bars, tightly integrated with the glued bamboo mesh frame, effectively enhance the overall stability and load-bearing capacity of the structure. Most importantly, the arched glued bamboo panels play a crucial role in the structure; through their own elastic deformation, they absorb and disperse stress caused by external loads, achieving automatic repositioning of the structure. Furthermore, the rubber supports positioned between the arched glued bamboo panels and the glued bamboo mesh frame possess excellent flexibility and elasticity, not only acting as a buffer but also helping the structure quickly return to its original shape after being subjected to stress.

[0034] The unique construction of this invention's bamboo-reinforced self-resetting composite slab structure endows it with exceptional strength and durability. Firstly, the glued bamboo mesh frame, constructed from crisscrossing glued bamboo panels, serves as the foundation support, providing the overall structure with uniform strength and stiffness. Secondly, the longitudinal reinforcing steel bars, firmly connected to the glued bamboo mesh frame, enhance the structure's overall load-bearing capacity and effectively distribute external loads. Most importantly, the introduction of rubber bearings, particularly their placement between the arched glued bamboo panels and the glued bamboo mesh frame, not only provides a flexible buffering effect but also absorbs and disperses the impact of external stresses, preventing structural damage. The synergistic effect of these three elements enables the bamboo-reinforced self-resetting composite slab structure to remain stable under heavy loads and external stresses, ensuring the structure's reliability and durability.

[0035] Therefore, the structural design adopted in this invention not only considers the environmental protection characteristics of bamboo reinforcement, but also focuses on achieving superior load-bearing capacity for large loads and external stresses while ensuring strength and durability.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] 1. This invention uses bamboo reinforcement as part of the structure and uses renewable and environmentally friendly bamboo as the main material, which helps to reduce dependence on limited wood resources, reduce carbon footprint, and promote sustainable building practices.

[0038] 2. The structure of the present invention has self-resetting characteristics, and can quickly restore its original state or shape after being subjected to external force, thereby improving the maintainability of the structure and reducing maintenance costs caused by external damage.

[0039] 3. The present invention combines the structure of glued bamboo, longitudinal reinforcing steel bars and rubber supports, which has excellent strength and durability and can withstand a large load and external stress.

[0040] 4. The use of corrosion-resistant plywood and high-strength bolts in this invention makes the structure more resistant to the effects of humid and corrosive environments, thus enhancing its durability;

[0041] 5. This invention uses bamboo reinforcement as the key structural material and utilizes self-resetting technology and materials such as rubber concrete to create a composite board with low carbon, environmental protection and self-resetting characteristics.

[0042] 6. This invention can significantly reduce the amount of steel reinforcement used, lower project costs, and improve the seismic resistance and durability of the structure. It provides a beneficial direction for the future development of prefabricated concrete structures and is expected to promote the construction industry towards a more sustainable and environmentally friendly direction. Attached Figure Description

[0043] Figure 1 This is a structural diagram of a glued bamboo mesh frame;

[0044] Figure 2 This is a schematic diagram of the assembly of longitudinal reinforcing steel bars and glued bamboo mesh frame;

[0045] Figure 3 This is a schematic diagram of a rubber bearing with through holes;

[0046] Figure 4 This is a schematic diagram of the structure of an arched plywood panel;

[0047] Figure 5 This is a structural schematic diagram of a high-strength bolt;

[0048] Figure 6 It is an assembly diagram of the plywood frame, longitudinal reinforcing steel bars, rubber supports with through holes, arched plywood panels, and high-strength bolts.

[0049] Figure 7 It is a structural diagram of a plywood bamboo mesh frame, longitudinal reinforcing steel bars, rubber supports with through holes, arched plywood bamboo panels, and high-strength bolts used to enclose the formwork.

[0050] Figure 8 This is a structural schematic diagram of the first concrete layer being poured;

[0051] Figure 9 This is a structural schematic diagram of the composite plate;

[0052] In the diagram: 1-Glued bamboo mesh frame, 2-Longitudinal reinforcing steel bar, 3-Archive glued bamboo board, 4-Rubber support, 5-Through hole, 6-Support template, 7-Precast base plate structure, 8-Bamboo reinforcement self-resetting composite plate structure, 9-Connector, 91-High-strength nut, 92-High-strength bolt rod. Detailed Implementation

[0053] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. These embodiments are based on the technical solution of the present invention and provide detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.

[0054] Example 1

[0055] A self-resetting composite bamboo rib structure includes a glued bamboo mesh frame 1, longitudinal reinforcing steel bars 2, an arched glued bamboo rib 3, rubber supports 4, and connectors.

[0056] The composite bamboo mesh frame 1 is provided with longitudinal reinforcing bars 2 and arched composite bamboo panels 3. The longitudinal reinforcing bars 2 are connected to the composite bamboo mesh frame 1 by reinforcing wires. The arched composite bamboo panels 3 are connected to the composite bamboo mesh frame 1 by high-strength bolts. Rubber supports 4 are set between the arched composite bamboo panels 3 and the composite bamboo mesh frame 1 and are connected to the arched composite bamboo panels 3 and the composite bamboo mesh frame 1 by high-strength bolts. A first concrete layer is poured at the bottom of the arched composite bamboo panels 3 and the rubber supports 4, and a second concrete layer is poured at the top of the arched composite bamboo panels 3 and the rubber supports 4.

[0057] In this embodiment, the first concrete layer is poured in the factory, which is suitable for industrialized mass production and ensures the quality of the pouring, while the second concrete layer is poured on the construction site.

[0058] Example 2

[0059] A bamboo-reinforced self-resetting composite plate structure, such as Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, the structure includes: a glued bamboo mesh frame 1, longitudinal reinforcing bars 2, arched glued bamboo panels 3, rubber supports with through holes 4, and high-strength bolts (connectors 9). The longitudinal reinforcing bars 2 overlap the glued bamboo mesh frame 1, the arched glued bamboo panels 3 overlap the glued bamboo mesh frame 1 and are connected by high-strength bolts, and the rubber supports with through holes 4 are located between the arched glued bamboo panels 3 and the glued bamboo mesh frame 1 and are connected by high-strength bolts. A first concrete layer is poured on the upper and lower parts of the glued bamboo mesh frame 1. A first concrete layer is poured on the lower part of the arched glued bamboo panels 3 and the rubber supports with through holes 4, and a second concrete layer is poured on the upper part of the arched glued bamboo panels 3 and the rubber supports with through holes 4. The concrete in the overall structure is poured in two stages. The first concrete layer is poured in a factory, suitable for industrialized mass production to ensure pouring quality, while the second concrete layer is poured on the construction site.

[0060] Furthermore, in this embodiment, as Figure 1 As shown, the glued bamboo mesh frame 1 is composed of crisscrossing glued bamboo panels. High-strength bolt through holes 5 are provided on the glued bamboo panels at both ends and the middle of the span of the glued bamboo mesh frame 1. The glued bamboo mesh frame 1 is made of bamboo and anti-corrosion coating.

[0061] Furthermore, in this embodiment, as Figure 2 As shown, the longitudinal reinforcing steel bar 2 can be made of ordinary steel or high-toughness steel.

[0062] Furthermore, in this embodiment, as Figure 5 As shown, the high-strength bolt is composed of a high-strength bolt rod 92 and a high-strength nut 91.

[0063] Furthermore, in this embodiment, as Figure 2 As shown, the glued bamboo mesh frame 1 and the longitudinal reinforcing steel bar 2 are fixed together by steel bar ties.

[0064] Furthermore, in this embodiment, as Figure 4 As shown, high-strength bolt through holes 5 are provided at both ends and the middle of the arched plywood 3. The arched plywood 3 is made of bamboo and anti-corrosion coating.

[0065] Furthermore, in this embodiment, as Figure 3 As shown, the rubber support 4 with through holes is a rectangular column, and a high-strength bolt through hole 5 is provided at the center of the rubber support 4 with through holes. The material of the rubber support 4 with through holes is high-toughness rubber.

[0066] The preparation method of the bamboo-reinforcing self-resetting composite plate structure described above includes the following specific steps:

[0067] Step 1: Lay the support template 6 at the predetermined position, and fix the plywood bamboo mesh frame 1 on the upper surface of the support template 6;

[0068] Step 2: Overlap the longitudinal reinforcing bars 2 on the fixed plywood frame 1, and tie the reinforcing bars with wire at the intersection of the plywood frame 1 and the longitudinal reinforcing bars 2;

[0069] Step 3: Set up a support template 6 around the glued bamboo mesh frame 1 and the longitudinal reinforcing steel bars 2 to form a rectangular structure;

[0070] Step 4: Pour concrete into the rectangular structure to form the first concrete layer. The first concrete layer covers the glued bamboo mesh frame 1, the longitudinal reinforcing steel bars 2, the arched glued bamboo board 3, and the lower part of the rubber support with through holes 4. The poured first concrete layer is compacted, the surface is smoothed and roughened. When the strength requirements are met, the formwork is removed to obtain the precast base plate structure 7.

[0071] Step 5: Transport the precast base plate structure 7 from Step 4 to the predetermined location on the construction site for installation, perform formwork support, pour concrete into the precast base plate structure 7 to form a second concrete layer. The second concrete layer covers the upper part of the arched plywood bamboo board 3 and the rubber support with through holes 4. The poured second concrete layer is compacted and the surface is smoothed. When the strength requirements are met, the formwork is removed to obtain the bamboo reinforcement self-resetting composite slab structure 8.

[0072] The bamboo-reinforced self-resetting composite panel structure of this invention uses bamboo reinforcement and self-resetting technology, which has multiple advantages such as low carbon footprint, environmental friendliness, material saving, improved seismic performance and reduced costs, and is expected to promote the development of the field of sustainable building.

[0073] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0074] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0075] The above description of the embodiments is provided to enable those skilled in the art to understand and use the invention. It will be apparent to those skilled in the art that various modifications can be made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present invention is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the invention should be within the protection scope of the present invention.

Claims

1. A bamboo-reinforced self-resetting composite plate structure, characterized in that, It includes a plywood bamboo mesh frame (1), longitudinal reinforcing steel bars (2), arched plywood bamboo panels (3), rubber supports (4), and connectors; The longitudinal reinforcing steel bar (2) is connected to the glued bamboo mesh frame (1), the arched glued bamboo board (3) is connected to the glued bamboo mesh frame (1) through the connector, the rubber support (4) is set between the arched glued bamboo board (3) and the glued bamboo mesh frame (1), and is connected to the arched glued bamboo board (3) and the glued bamboo mesh frame (1) through the connector, the lower part of the arched glued bamboo board (3) and the rubber support (4) is filled with a first concrete layer, and the upper part of the arched glued bamboo board (3) and the rubber support (4) is filled with a second concrete layer; The glued bamboo mesh frame and the longitudinal reinforcing bars are fixed together by steel wire binding. The plywood frame (1) is composed of plywood panels arranged in a crisscross pattern; The rubber support (4) is set at the mid-span of the glued bamboo mesh frame (1). Through holes (5) for installing connectors are opened on the glued bamboo boards at both ends and the mid-span of the glued bamboo mesh frame (1). Through holes (5) for installing connectors are opened on both ends and the mid-span of the arched glued bamboo board (3). The elastic deformation of the arched plywood can absorb and disperse the stress caused by external loads, enabling the structure to automatically reset. The rubber bearings not only act as a buffer, but also help the structure quickly return to its original shape after being subjected to force. They can also absorb and disperse the impact from external stress, preventing damage to the structure.

2. The bamboo-reinforced self-resetting composite plate structure according to claim 1, characterized in that, The materials of the plywood frame (1) and the arched plywood panel (3) include bamboo and anti-corrosion coating.

3. The bamboo-reinforced self-resetting composite plate structure according to claim 1, characterized in that, The longitudinal reinforcing steel bar (2) is made of ordinary steel or high-toughness steel.

4. The bamboo-reinforced self-resetting composite plate structure according to claim 1, characterized in that, The rubber support (4) is a rectangular column, and a through hole (5) for installing the connector is provided at the center of the rubber support (4).

5. The bamboo-reinforced self-resetting composite plate structure according to claim 1, characterized in that, The rubber support (4) is made of high-toughness rubber.

6. A method for preparing a bamboo-reinforced self-resetting composite plate structure according to any one of claims 1 to 5, characterized in that, Includes the following steps: S1: Lay out the support template (6) and fix the glued bamboo mesh frame (1) on the upper end of the support template (6); S2: Overlap the longitudinal reinforcing bars (2) on the fixed plywood frame (1), and tie the reinforcing bars with wire at the intersection of the plywood frame (1) and the longitudinal reinforcing bars (2); S3: A support template (6) is set around the glued bamboo mesh frame (1) and the longitudinal reinforcing steel bars (2) to form a rectangular structure; S4: Pour concrete into the rectangular structure to form the first concrete layer, remove the support formwork (6), and obtain the precast base plate structure (7). S5: Transport the precast base plate structure (7) to the predetermined position on the construction site, install it with formwork support, pour concrete into the precast base plate structure (7) to form a second concrete layer, remove the formwork, and obtain the bamboo reinforcement self-resetting composite plate structure (8).

7. The method for preparing the bamboo-reinforced self-resetting composite plate structure according to claim 6, characterized in that, Step S4: The first concrete layer covers the bottom of the glued bamboo mesh frame (1), longitudinal reinforcing steel bars (2), arched glued bamboo board (3), and rubber support (4). The first concrete layer is compacted, the surface is smoothed and roughened. When the strength requirement is met, the support formwork (6) is removed to obtain the precast base plate structure (7).

8. The method for preparing the bamboo-reinforcing self-resetting composite plate structure according to claim 6, characterized in that, Step S5: The second concrete layer covers the upper part of the arched plywood (3) and the rubber support (4). The second concrete layer is compacted and the surface is smoothed. When the strength requirement is met, the template is removed to obtain the bamboo reinforcement self-resetting composite board structure (8).

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