Manufacturing method of multifunctional bamboo laminated wood container

Abstract

The invention relates to a manufacturing method of a multifunctional bamboo laminated wood container. The multifunctional bamboo laminated wood container is composed of corner columns, middle columns, longitudinal side long beams, transverse short beams, longitudinal middle short beams, FRP steel sleeve bolt connectors with corner fittings, inclined struts, FRP steel composite square barrel-shaped supports, FRP angle steel bolt connectors, FRP steel filling plate bolt connectors, side face hinged doors and peripheral plates. The container can be loaded and unloaded through hoisting and can also be loaded and unloaded through a forklift. The container can be provided with a side door or a top vertical hinged door, loading efficiency is high, and loading and unloading of different goods can be met. The container is light in dead weight, high in strength, safe and reliable in structure, corrosion-resistant, impact-resistant, fatigue-resistant, freezing-resistant and the like, reduces the use of mineral materials such as steel and aluminum alloy, and is low-carbon and environment-friendly.

Description

Technical Field

[0001] The invention relates to a method for manufacturing a multifunctional bamboo integrated timber container, belonging to the field of cargo transportation. Background Art

[0002] The high density of steel makes steel containers heavy. For example, a common 20-foot standard steel container can weigh about 2.3 tons. When transporting goods, this weight will occupy the load capacity of the transport vehicle, resulting in a decrease in effective cargo capacity. The transportation cost will increase due to the consumption of more fuel due to the extra weight.

[0003] Steel is prone to oxidation and rust in humid and salty conditions (such as marine transportation environments). Generally, after 3-5 years of use, steel containers need to be rusted and painted, and the cost of each maintenance is about 5%-10% of the container cost. Frequent maintenance not only costs money, but also affects the efficiency of container use. The steel production process consumes a large amount of resources such as iron ore and coal, and also produces a large amount of pollutants such as carbon dioxide and waste slag. According to statistics, the production of 1 ton of steel will emit about 1.6 tons of carbon dioxide. With the increasing global requirements for environmental protection and sustainable development, the disadvantages of traditional steel containers in terms of resources and environmental protection are becoming increasingly prominent.

[0004] At present, although there are some attempts to improve container materials, such as the use of lightweight materials such as aluminum alloy, aluminum alloy is relatively expensive and has certain limitations in strength and impact resistance, making it difficult to fully meet the requirements of the complex use environment of containers. The application research of natural materials such as bamboo in the container field is still in its infancy, lacking mature and systematic technical solutions.

[0005] High-strength fiber material (FRP) is a new type of material with excellent mechanical properties and good durability. It can be composited with other materials to improve the mechanical properties and durability of the material.

[0006] Bamboo laminated materials are made by processing fast-growing, short-cycle bamboo into bamboo strips of fixed width and thickness, or flattening the original bamboo into wide-format bamboo units (removing the green and yellow parts), treating them (such as carbonization, etc.) and drying them to a certain moisture content, and then gluing the bamboo strips together with adhesives to form a profile. Bamboo laminated materials can achieve arbitrary cross-sectional dimensions, and have many advantages such as being green, low-carbon, environmentally friendly, lightweight, and high-strength, and can be applied to structural systems. Summary of the invention

[0007] To solve the above problems, the present invention provides a manufacturing method for a multi-functional bamboo laminated timber container, which has the advantages of light weight, high strength, resource conservation, environmental protection, and convenience for assembly production and use. A container with bamboo laminated timber as the structural material and its preparation method developed and protected by this patent aims to reduce self-weight, ensure reliable structural safety, be corrosion-resistant, impact-resistant, fatigue-resistant, freeze-resistant, etc. At the same time, it develops and utilizes biomass material resources, reduces the use of mineral materials such as steel and aluminum alloy, and is more low-carbon and environmentally friendly. In addition, the container developed by this patent is a multi-functional light-weight and high-strength bamboo laminated timber container that can adopt various loading and unloading methods and meet various loading methods.

[0008] The technical solution adopted by the present invention is as follows:

[0009] A manufacturing method for a multi-functional bamboo laminated timber container, characterized in that: the multi-functional bamboo laminated timber container is composed of corner posts (1), middle posts (2), longitudinal side girders (3), transverse short girders (4), longitudinal middle short girders (5), FRP steel sleeve bolt connections with corner fittings (6), diagonal braces (7), FRP steel composite square tube-shaped supports (8), FRP angle steel bolt connections (9), FRP steel filler plate bolt connections, cargo access doors and peripheral plates; the specific steps of its manufacturing method are as follows:

[0010] Step 1: Prepare bamboo laminated timber profiles and process them into large-section beams, columns and plate components, and drill bolt or nail connection holes at the ends and other connection parts of the bamboo laminated timber beams, columns and plates; Bamboo laminated timber is processed from fast-growing and short-cycle bamboo into bamboo slices with a fixed width and thickness or the original bamboo is flattened to form a wide-width bamboo unit (removing bamboo green and bamboo yellow), treated (such as carbonization, etc.) and dried to a certain moisture content, and then the bamboo slices are glued together with an adhesive to form a profile.

[0011] Step 2: Prepare FRP steel connectors. Among them, the FRP steel sleeve bolt connection with corner fittings (6) is an integrated connector with holes, which can not only connect beam and column structural components but also be used as a connector for container hoisting at the same time; The two sides of the FRP steel composite square tube-shaped support (8) are provided with square or circular holes with a spacing width of not less than 50 mm and a spacing of not less than 100 mm, which not only ensure the transmission of sufficient vertical force but also reduce self-weight at the same time, and have strong durability and resistance to seawater erosion.

[0012] Step 3: Build the bottom bamboo laminated timber frame structure. Place the two FRP-steel composite square tube-shaped supports (8) according to the spacing requirements for forklift loading and unloading. Then, symmetrically place the two bottom longitudinal side beams (3-1) at the ends of the two FRP-steel composite square tube-shaped supports (8). Connect the bottom transverse short beam (4-1) to the two bottom longitudinal side beams (3-1) using the FRP-steel sleeve bolt connection (6-2) with corner fittings at the bottom. Connect the transverse short beam (4) to the two bottom longitudinal side beams (3-1) using the right-angle FRP-steel filler plate bolt connection (10), and connect the longitudinal middle short beam (5) to the transverse short beam (4). Fix the two FRP-steel composite square tube-shaped supports (8) to the bottom longitudinal side beam (3-1) and the longitudinal middle short beam (5) together using the "L"-shaped FRP-steel angle bolt connection (9). The bottom surfaces of the FRP-steel composite square tube-shaped supports (8) and the FRP-steel sleeve bolt connection (6-2) with corner fittings at the bottom are on the same horizontal plane to ensure that the container load can be transferred to the ground simultaneously.

[0013] Step 4: Connect the corner columns (1) to the bottom bamboo laminated timber frame structure using the FRP-steel sleeve bolt connection (6-2) with corner fittings at the bottom. Connect the middle columns (2) to the beams of the bottom frame using the right-angle FRP-steel filler plate bolt connection (10). Connect the longitudinal side middle columns (2-1) to (2-4) and the bottom longitudinal side beam (3-1) in a triangular form using the diagonal braces (7).

[0014] Step 5: Connect the top transverse side short beam (4-2) and the top longitudinal side beam (3-2) of the access door using the FRP-steel sleeve bolt connection (6-1) with corner fittings at the top. Connect the top transverse side short beam (4-2), the access door corner column (1-1), and the connection plate corner column (1-2) to the top longitudinal side beam (3-2) in a triangular form using the diagonal braces (7), and connect the connection plate corner column (1-2) to the top transverse side short beam (4-3) of the connection plate. Connect the middle transverse short beam (4-4) to the top longitudinal side beam (3-2) using the right-angle FRP-steel filler plate bolt connection (10).

[0015] Step 6: Install side double-leaf doors (12-1) between two connecting door corner posts (1-1); fix the bottom bamboo laminated lumber longitudinal board (13), side bamboo laminated lumber longitudinal board (15), top bamboo laminated lumber longitudinal board (14) and side bamboo laminated lumber transverse board (16) to the periphery of the bamboo laminated lumber frame structure to form an enclosure structure, and the bamboo fibers of the boards are arranged bidirectionally; install an automatic swing door (12-2) at the exact middle position on the top of the bamboo laminated lumber frame structure to facilitate the loading and unloading of large-tonnage goods by crane; apply a protective coating on the outer surface of the bamboo laminated lumber boards, and the coating is a breathable superhydrophobic coating composed of polydopamine nanoparticles (PDA NPs) and a supramolecular network (PIT) of polydimethylsiloxane-isophorone diisocyanate-boron trifluoride (PDMS-IPDI-TFB), wherein the water contact angle (WCA) of the breathable superhydrophobic coating is not less than 150°, and the sliding angle (SA) is not more than 10°; fill silicone sealant at each splicing gap of the container.

[0016] For the bamboo laminated lumber frame structure, if it is a 20-foot standard marine container, it can be composed of 4 corner posts (1), 9 middle posts (2), 4 longitudinal side beams (3), 4 longitudinal middle short beams (5), 12 transverse short beams (4), 16 diagonal braces (7), and 2 FRP-steel composite square tube-shaped supports (8); when installing the top surface automatic swing door (12-2) at the top, the number of transverse short beams (4) can be reduced according to the situation.

[0017] The goods access doors can be made of metal material, or can be composed of one or more of bamboo laminated lumber, bamboo recombined lumber, bamboo woven glued lumber, wood, FRP, straw; the top of the container may not be equipped with goods access doors either.

[0018] For the FRP-steel sleeve bolt connection (6), FRP-steel composite square tube-shaped support (8), FRP-steel angle bolt connection (9), and FRP-steel filler plate bolt connection (10), in the case of no service life requirements, FRP outsourcing may not be adopted, and only steel can be used; the FRP-steel composite square tube-shaped support (8) not only serves as the bottom support of the frame, but also is used to fix the forklift fork head to facilitate handling with a forklift.

[0019] According to the manufacturing method of a multifunctional bamboo laminated lumber container described in claim 1, it is characterized in that the bamboo laminated lumber can be replaced with one or more of bamboo recombined lumber, bamboo woven glued lumber, bamboo plastic composite, bamboo particleboard composite, bamboo chip profile, engineered wood, ordinary wood, straw according to the use function and requirements.

[0020] The bamboo fibers of the bamboo laminated lumber boards can be arranged bidirectionally, or can be arranged unidirectionally according to the use conditions and environment; the outer surface protective coating can adopt other functional coatings according to the use function and requirements.

[0021] The number and arrangement method of the diagonal braces (7) inside the bamboo integrated timber frame structure can be increased or decreased according to the weight allowance and usage conditions.

[0022] The bamboo integrated timber frame structure, whose components include corner columns (1), middle columns (2), longitudinal middle and short beams (5), and transverse short beams (4), can be increased or decreased according to weight allowance and usage conditions; the structure can also be used as a house.

[0023] The polydimethylsiloxane-isophorone diisocyanate-boron trifluoride (PDMS-IPDI-TFB) supramolecular network (PIT) containing polydopamine nanoparticles (PDANPs) was uniformly coated on the surface of bamboo composite materials by spraying process to form a breathable superhydrophobic coating. The coating performance was optimized by precisely controlling the content of PDANPs, making it show excellent comprehensive characteristics. The coating has high air permeability, allowing gas exchange while maintaining superhydrophobicity to avoid internal moisture accumulation; strong mechanical durability, can effectively resist sandpaper wear, tape peeling and high-speed water flow impact; good chemical stability, superhydrophobic performance is stable in strong acid, strong alkali, high salt solution, organic solvent, ultraviolet irradiation and extreme temperature environment; has self-repairing ability, after O2 plasma etching, it can restore superhydrophobicity under sunlight, room temperature, low temperature and underwater conditions; outstanding anti-icing and de-icing performance, can significantly delay water freezing time, reduce ice adhesion strength, and can quickly melt ice droplets and ice layers under sunlight.

[0024] Silicone sealant is used to seal the joints of the container. The sealant should have good elasticity, aging resistance and waterproof performance, and the filling depth should be no less than 10mm to ensure that the gap is completely sealed to prevent moisture, dust, etc. from entering the container and affecting the performance of the bamboo composite material.

[0025] The beneficial effects of the present invention are:

[0026] The patented container with bamboo integrated materials as structural material has light weight, high strength, safe and reliable structure, corrosion resistance, impact resistance, fatigue resistance, frost resistance, etc., which reduces the use of mineral materials such as steel and aluminum alloy, and is more low-carbon and environmentally friendly. The patented container can be loaded and unloaded by hoisting or forklift. The patented container has both side doors and top swing doors, high loading efficiency, and can meet the loading and unloading of different goods.

[0027] The bamboo composite material that has been specially processed has excellent mechanical properties such as tensile strength and compressive strength. Through reasonable frame structure design and connection method, this container can meet the various strength requirements of international container standards. During normal use and transportation, it can withstand the stacking load, transportation vibration load and hoisting load of goods, ensuring the safety of cargo transportation.

[0028] Bamboo laminated lumber itself has a certain corrosion resistance. Coupled with the surface protective coating and sealing treatment, its corrosion resistance in harsh environments such as humidity and salt spray is far superior to that of steel containers. In the marine transportation environment, general steel containers need to undergo large-scale anti-corrosion maintenance every 3-5 years, while this bamboo laminated lumber frame container can be used for 8-10 years without large-scale anti-corrosion treatment, and the maintenance cost can be reduced by more than 50%.

[0029] Bamboo grows rapidly. Generally, it can grow to 10-20 meters in 3-4 months, and it is a renewable resource. Using bamboo laminated lumber to make containers can reduce the dependence on non-renewable resources such as steel. At the same time, bamboo can absorb a large amount of carbon dioxide during its growth process, and its carbon emissions during the processing process are also relatively low, which helps to achieve the low-carbon and environmental protection goals of the container industry.

[0030] The following further describes the specific embodiments of the present invention in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is the bamboo laminated lumber frame structure of Embodiment 1 of the present invention;

[0032] Figure 2 It is the bamboo laminated lumber frame structure of Embodiment 2 of the present invention;

[0033] Figure 3 It is the bamboo laminated lumber frame structure of Embodiment 3 of the present invention;

[0034] Figure 4 It is the bamboo laminated lumber frame structure of Embodiment 4 of the present invention;

[0035] Figure 5 It is the schematic diagram of the door and board arrangement of Embodiment 5 of the present invention;

[0036] Figure 6 It is the schematic diagram of the door and board arrangement of Embodiments 1-4 of the present invention;

[0037] Figure 7 It is the schematic diagram of the FRP steel composite square tube-shaped support of the present invention;

[0038] Figure 8 It is the schematic diagram of the bamboo fiber direction of the board of the present invention;

[0039] Reference Signs: 1 is a corner post, 1-1 is a door-connected corner post, 1-2 is a plate-connected corner post; 2 is a middle post, 2-1 to 2-4 are longitudinal side middle posts, 2-5 is a transverse side middle post; 3 is a longitudinal long side beam, 3-1 is a bottom longitudinal long side beam, 3-2 is a top longitudinal long side beam; 4 is a transverse short beam, 4-1 is a bottom transverse short beam, 4-2 is a top transverse side short beam connected to the door, 4-3 is a top transverse side short beam connected to the plate, 4-4 is a middle transverse short beam; 5 is a longitudinal middle short beam; 6 is an FRP steel sleeve bolt connection with corner fittings, 6-1 is an FRP steel sleeve bolt connection with corner fittings at the top, 6-2 is an FRP steel sleeve bolt connection with corner fittings at the bottom; 7 is a diagonal brace; 8 is an FRP steel composite square tube-shaped support; 9 is an FRP angle steel bolt connection; 10 is a right-angle FRP steel filler plate bolt connection, 10-1 is a right-angle FRP steel filler plate bolt connection connecting the longitudinal middle short beam and the transverse short beam, 10-2 is a right-angle FRP steel filler plate bolt connection connecting other components; 11 is an FRP steel filler plate bolt connection with an inclined angle for connecting the diagonal brace; 12 is a door, 12-1 is a side-facing double-leaf door, 12-2 is a top surface automatic swing door; 13 is a bottom bamboo laminated lumber longitudinal board; 14 is a top bamboo laminated lumber longitudinal board; 15 is a side bamboo laminated lumber longitudinal board; 16 is a side bamboo laminated lumber transverse board; 17 is a longitudinal bamboo fiber; 18 is a transverse bamboo fiber. Detailed Implementation Manner

[0040] Example 1

[0041] A manufacturing method of a multi-functional bamboo laminated lumber container, characterized in that: the bamboo laminated lumber container is composed of a corner post (1), a middle post (2), a longitudinal long side beam (3), a transverse short beam (4), a longitudinal middle short beam (5), an FRP steel sleeve bolt connection with corner fittings (6), a diagonal brace (7), an FRP steel composite square tube-shaped support (8), an FRP angle steel bolt connection (9), an FRP steel filler plate bolt connection, a side-facing double-leaf door (12-1), a top surface automatic swing door (12-2), and peripheral plates; the specific steps of its manufacturing method are as follows:

[0042] Step 1: Prepare bamboo laminated lumber profiles and process them into large cross-section beam, column and plate components, and drill bolt or nail connection holes at the ends and other connection parts of the bamboo laminated lumber beams, columns and plates; the bamboo laminated lumber is a profile formed by processing fast-growing and short-cycle bamboo into bamboo slices with a fixed width and thickness or flattening the original bamboo to form a wide-width bamboo unit (removing bamboo green and bamboo yellow), treating (such as carbonization, etc.) and drying to a certain moisture content, and then gluing the bamboo slices with an adhesive.

[0043] Step 2: Prepare the FRP steel connectors. The FRP steel sleeve bolt connection (6) with corner pieces is an integrated connector with holes, which can not only connect beam and column structural members but also be used as a connector for container hoisting at the same time. Square or circular holes with a spacing width of not less than 50 mm and a spacing of not less than 100 mm are opened on both sides of the FRP steel composite square tube-shaped support (8).

[0044] Step 3: Build the bottom bamboo laminated timber frame structure. Place 2 FRP steel composite square tube-shaped supports (8) according to the spacing requirements for forklift loading and unloading. Then, symmetrically place two bottom longitudinal side beams (3-1) at the ends of the 2 FRP steel composite square tube-shaped supports (8) respectively. Use the FRP steel sleeve bolt connection (6-2) with corner pieces at the bottom to connect the bottom transverse short beam (4-1) to the two bottom longitudinal side beams (3-1). Use the right-angle FRP steel filler plate bolt connection (10) to connect the transverse short beam (4) to the two bottom longitudinal side beams (3-1), and connect the longitudinal middle short beam (5) to the transverse short beam (4). Fix the 2 FRP steel composite square tube-shaped supports (8) to the bottom longitudinal side beam (3-1) and the longitudinal middle short beam (5) together through the "L"-shaped FRP angle steel bolt connection (9).

[0045] Step 4: Connect the corner column (1) to the bottom bamboo laminated timber frame structure through the FRP steel sleeve bolt connection (6-2) with corner pieces at the bottom. Connect the middle column (2) to the beam of the bottom frame through the right-angle FRP steel filler plate bolt connection (10). Connect the longitudinal side middle columns (2-1) to (2-4) and the bottom longitudinal side beam (3-1) in a triangular form through the diagonal brace (7).

[0046] Step 5: Use the FRP steel sleeve bolt connection (6-1) with corner pieces at the top to connect the top transverse side short beam (4-2) and the top longitudinal side beam (3-2) of the connecting door. Use the diagonal brace (7) to connect the top transverse side short beam (4-2), the connecting door corner column (1-1), and the connecting plate corner column (1-2) to the top longitudinal side beam (3-2) in a triangular form, and connect the connecting plate corner column (1-2) to the top transverse side short beam (4-3) of the connecting plate. Use the right-angle FRP steel filler plate bolt connection (10) to connect the middle transverse short beam (4-4) to the top longitudinal side beam (3-2).

[0047] Step 6: Install side double-leaf doors (12-1) between two connecting door corner posts (1-1); fix the bottom bamboo laminated longitudinal board (13), side bamboo laminated longitudinal boards (15), top bamboo laminated longitudinal board (14) and side bamboo laminated transverse boards (16) to the periphery of the bamboo laminated frame structure to form an enclosure structure, and the bamboo fibers of the boards are arranged bidirectionally; install an automatic swing door (12-2) at the exact middle position on the top of the bamboo laminated frame structure; apply a protective coating on the outer surface of the bamboo laminated boards, and the coating is a breathable superhydrophobic coating composed of polydopamine nanoparticles (PDA NPs) and a supramolecular network of polydimethylsiloxane-isophorone diisocyanate-boron trifluoride (PDMS-IPDI-TFB) (PIT), wherein the water contact angle (WCA) of the breathable superhydrophobic coating is not less than 150°, and the sliding angle (SA) is not greater than 10°; fill silicone sealant at each splicing gap of the container.

[0048] For the bamboo laminated frame structure, if it is a 20-foot standard marine container, it can be composed of 4 corner posts (1), 9 middle posts (2), 4 longitudinal side beams (3), 4 longitudinal middle short beams (5), 12 transverse short beams (4), 16 diagonal braces (7), and 2 FRP steel composite square tube-shaped supports (8); when installing the top automatic swing door (12-2) at the top, the number of transverse short beams (4) can be reduced according to the situation.

[0049] Example 2

[0050] The main difference between Example 2 and Example 1 is that the diagonal braces (7) between 8 longitudinal side middle posts (2-1) to (2-4) and the bottom longitudinal side beam (3-1) are removed.

[0051] Example 3

[0052] The main difference between Example 3 and Example 1 is that the longitudinal side beam (3) is connected by two bamboo laminated beams through an FRP steel sleeve.

[0053] Example 4

[0054] The main difference between Example 4 and Example 3 is that the diagonal braces (7) between 8 longitudinal side middle posts (2-1) to (2-4) and the bottom longitudinal side beam (3-1) are removed.

[0055] Example 5

[0056] The main feature of Example 5 is that the top automatic swing door (12-2) is not installed at the top of the container.

[0057] The above embodiments are only specific embodiments of the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent transformation, improvement, etc. made on the premise of not departing from the essence of the technical solution of the present invention based on the concept of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A method for manufacturing a multifunctional bamboo laminated timber container, characterized in that: The multifunctional bamboo integrated material container comprises a corner column (1), a middle column (2), a longitudinal side beam (3), a transverse short beam (4), a longitudinal middle short beam (5), an FRP steel sleeve bolt connection with a corner piece (6), a diagonal brace (7), an FRP steel composite square cylindrical support (8), an FRP angle steel bolt connection (9), an FRP steel filler plate bolt connection, a cargo inlet and outlet door, and a peripheral plate. The specific steps of the manufacturing method are as follows: Step 1: Prepare bamboo composite material profiles, process them into beams, columns and plate components, and drill bolt or nail connection holes at the ends of beams, columns and plates and other connection parts; bamboo composite materials are profiles made by processing fast-growing and short-cycle bamboo into bamboo slices of fixed width and thickness or flattening the original bamboo to form wide-format bamboo units (removing bamboo green and bamboo yellow), treating (such as carbonization, etc.) and drying to a certain moisture content, and then gluing the bamboo slices together with adhesives; Step 2: Prepare FRP steel connectors, wherein the FRP steel sleeve bolt connection with angle pieces (6) is an integrated connector with holes, which can connect beam and column structural members and can also be used as a connector for container lifting; the FRP steel composite square cylindrical support (8) has square or circular holes with a spacing of not less than 50 mm and a spacing of not less than 100 mm on both sides; Step 3: Build the bottom bamboo composite wood frame structure, place the two FRP steel composite square cylindrical supports (8) at a spacing that meets the requirements for forklift loading and unloading, then symmetrically place the two bottom longitudinal side beams (3-1) at the ends of the two FRP steel composite square cylindrical supports (8), and use the FRP steel sleeve bolt connection (6-2) with a bottom angle piece to connect the bottom transverse short beam (4-1) with the two bottom longitudinal side beams (3-1); use the right-angle FRP steel filler plate bolt connection (10 ) connect the transverse short beam (4) with the two bottom longitudinal side beams (3-1), and connect the longitudinal middle short beam (5) with the transverse short beam (4); fix two FRP steel composite square cylindrical supports (8) with the bottom longitudinal side beams (3-1) and the longitudinal middle short beam (5) through "L"-shaped FRP angle steel bolt connection (9), and the bottom surface of the FRP steel composite square cylindrical support (8) and the bottom surface of the FPP steel sleeve bolt connection (6-2) with an angle piece at the bottom are on the same horizontal plane; Step 4: Connect the corner column (1) to the bottom bamboo composite material frame structure through the FPP steel sleeve bolt connection (6-2) with the corner piece at the bottom; connect the middle column (2) to the beam of the bottom frame through the right-angle FPP steel filler plate bolt connection (10); connect the longitudinal side middle columns (2-1) to (2-4) and the bottom longitudinal side long beam (3-1) in a triangular shape through the diagonal brace (7); Step 5: Use FPP steel sleeve bolts with corner pieces on the top to connect the top transverse short beam (4-2) and the top longitudinal long beam (3-2) of the connecting door by using a bolt connection (6-1); use diagonal braces (7) to connect the top transverse short beam (4-2), the door corner column (1-1), the connecting plate corner column (1-2) and the top longitudinal long beam (3-2) in a triangular form, and connect the connecting plate corner column (1-2) and the connecting plate top transverse short beam (4-3); use right-angle FRP steel filler bolt connection (10) to connect the middle transverse short beam (4-4) and the top longitudinal long beam (3-2); Step 6: Install a side-opening door (12-1) between two door corner posts (1-1); fix a bottom bamboo integrated wood longitudinal board (13), a side bamboo integrated wood longitudinal board (15), a top bamboo integrated wood longitudinal board (14) and a side bamboo integrated wood transverse board (16) to the periphery of the bamboo integrated wood frame structure to form an enclosure structure, wherein the bamboo fibers of the boards are arranged in a bidirectional manner; install an automatic swing door (12-2) in the middle of the top of the bamboo integrated wood frame structure; apply a protective coating on the outer surface of the bamboo integrated wood board, wherein the coating is a breathable super-hydrophobic coating composed of polydopamine nanoparticles (PDA NPs) and a polydimethylsiloxane-isophorone diisocyanate-boron trifluoride (PDMS-IPDI-TFB) supramolecular network (PIT), wherein the water contact angle (WCA) of the breathable super-hydrophobic coating is not less than 150°, and the sliding angle (SA) is not greater than 10°; and fill each joint gap of the container with silicone sealant.

2. The method for manufacturing a multifunctional bamboo integrated timber container according to claim 1, characterized in that: The cargo entry and exit door may be made of metal, or may be made of one or more composite materials selected from bamboo integrated materials, bamboo recombinant materials, bamboo woven and glued materials, wood, FRP, and straw.

3. The method for manufacturing a multifunctional bamboo integrated timber container according to claim 1, characterized in that: The FRP steel sleeve bolt connection (6), the FRP steel composite square cylindrical support (8), the FRP angle steel bolt connection (9), and the FRP steel filler plate bolt connection (10) may not be covered with FRP when there is no requirement for service life; the FRP steel composite square cylindrical support (8) is used as a frame bottom support and a forklift plug hole at the same time.

4. The method for manufacturing a multifunctional bamboo integrated timber container according to claim 1, characterized in that: The bamboo integrated material can be replaced with one or more composites of bamboo reconstituted material, bamboo woven glued material, bamboo plastic composite material, bamboo shavings composite material, bamboo chip profile, engineering wood, ordinary wood, and straw according to the use function and requirements; the bamboo fiber of the bamboo integrated material board can be arranged in both directions or in one direction according to the use conditions and environment; the outer surface protective coating can adopt other functional coatings according to the use function and requirements.

5. The method for manufacturing a multifunctional bamboo integrated timber container according to claim 1, characterized in that: The top of the container may not be equipped with a cargo door; the number and arrangement method of the corner columns (1), middle columns (2), transverse short beams (4), longitudinal middle short beams (5) and diagonal braces (7) inside the bamboo integrated timber frame structure may be increased or decreased according to the weight allowance and usage conditions; the structure may also be used as a house.

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