A method for preparing a steel-biomass waste composite component

Abstract

The present invention relates to a method for preparing a steel-biomass waste composite component, wherein the composite component is composed of a factory-prefabricated hollow thin-walled steel column, a factory-prefabricated steel sleeve, a hollow raw bamboo with bamboo nodes opened, biomass waste filled in the hollow raw bamboo, FRP bars, high-strength bolts and foamed concrete. When preparing the composite component, in the prefabricated hollow thin-walled steel column, the hollow raw bamboo filled with biomass waste is placed in four large circular holes for fixing, and then 4 FRP bars are placed in 4 small circular holes for fixing, and then special foamed concrete is poured into it through the reserved rectangular holes, and after the foamed concrete is expanded and formed, the prefabricated steel sleeve is finally connected to the main hollow thin-walled steel column through high-strength bolts to complete. Compared with traditional reinforced concrete components, the present invention has the advantages of light weight and high strength, resource saving, green environmental protection, anti-corrosion, fast assembly and forming, and convenient production.

Description

Technical Field

[0001] The invention relates to a method for preparing a steel-biomass waste composite component, and belongs to the field of building material manufacturing. Background Art

[0002] With the rapid development of my country's construction industry, a large number of reinforced concrete materials have been applied to various new buildings due to their advantages such as integrity, durability, and fire resistance. However, traditional reinforced concrete structures also have a lot of disadvantages: 1. The combination of reinforced concrete leads to a large self-weight of the structure 2. The tensile strength of concrete is low and it is easy to break 3. The pouring of traditional concrete is time-consuming and labor-intensive, and the construction time is long 4. The construction of traditional concrete will be affected by the season, etc. Therefore, traditional reinforced concrete needs to be improved. Fiber reinforced composite material, referred to as FRP (Fiber reinforced polymer), is a high-performance material formed by mixing fiber material and matrix material in a certain proportion. Compared with traditional steel bars, FRP bars have been widely used in structural reinforcement and engineering renovation at home and abroad in recent years due to their advantages such as light weight, high tensile strength, strong corrosion resistance, and strong material bonding. In rural my country, a large amount of biomass waste such as wheat and corn stalks are burned in farmland every year, which not only causes serious air pollution in my country, but also is a serious waste of resources. In view of these situations, the present invention comprehensively utilizes hollow raw bamboo filled with biomass waste, foamed concrete, FRP bars and hollow steel columns to propose a lightweight and high-strength composite component that can utilize biomass waste. Summary of the invention

[0003] In order to solve the above problems, the present invention proposes a method for preparing a steel-biomass waste composite component, which has the advantages of light weight and high strength, resource saving, environmental friendliness, corrosion resistance, fast assembly and molding, and is easy to assemble and use.

[0004] The technical solution adopted by the present invention is as follows:

[0005] A method for preparing a steel-biomass waste composite component, the composite component is composed of a factory-prefabricated hollow thin-walled steel column, four large circular holes, four small circular holes and a rectangular hole reserved on the upper and lower bottom surfaces of the steel column, a hollow original bamboo with bamboo nodes punched through and filled with biomass waste, FRP bars, a factory-prefabricated steel sleeve, high-strength bolts, and foamed concrete. When preparing the composite component, in the prefabricated hollow thin-walled steel column, the hollow original bamboo filled with biomass waste is placed in the four large circular holes for fixing, and then four FRP bars are placed in the four small circular holes for fixing, and then the special foamed concrete is poured into it through the reserved rectangular hole, and after the foamed concrete is expanded and formed, the prefabricated steel sleeve is finally connected to the main steel column through high-strength bolts.

[0006] Furthermore, the composite component comprises a hollow thin-walled steel column, and four large circular holes, four small circular holes and one rectangular hole are reserved on the upper and lower bottom surfaces of the steel column, and bolt holes are reserved near the ends on the four sides.

[0007] Furthermore, the composite component comprises a hollow thin-walled steel column, the steel surface inside the column is roughened with different patterns, and the outer layer of the column is painted with anti-rust paint for anti-corrosion treatment.

[0008] Furthermore, the raw bamboo included in the composite component is a hollow raw bamboo with bamboo nodes opened, which is filled with biomass waste such as crop straw.

[0009] Furthermore, the FRP bar used in the composite component is a high-performance FRP bar formed by gluing carbon fibers with polyamide resin, and then extruding and drawing through a special mold.

[0010] The beneficial effects of the present invention are as follows: the original bamboo inside the composite component can be opened up to fill a large amount of biomass waste, which is conducive to the reuse of waste biomass and is in line with the development concept of green environmental protection. At the same time, the use of FRP bars instead of traditional steel bars and foamed concrete instead of ordinary concrete can reduce the overall dead weight of the composite component and improve the stability of the overall component. At the same time, the filler in the composite material column is a new type of foamed concrete. Compared with traditional ordinary concrete, foamed concrete has the advantages of light weight, high temperature resistance, good sound insulation, less environmental pollution, and fast construction and forming. At the same time, the surface of the hollow thin-walled steel column of the composite component can be used in harsh environments after being pre-rust-proofed. At the same time, because its hollow thin-walled steel column and steel sleeve are prefabricated in the factory and the filler is foamed concrete, the composite component also has the advantages of fast on-site construction and forming and convenient assembly production. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic diagram of a steel biomass waste composite component;

[0012] Figure numerals: 1 is a hollow thin-walled steel column prefabricated in a factory; 2 is a steel sleeve prefabricated in a factory; 3 is a hollow raw bamboo with bamboo nodes opened; 4 is biomass waste filled in the hollow raw bamboo; 5 is FRP reinforcement; 6 is a high-strength bolt; 7 is foamed concrete. DETAILED DESCRIPTION

[0013] In order to explain the advantages and technical solutions of the present invention clearly, Figure 1 The present invention is further described. The present invention covers any substitutions, modifications, equivalent methods and solutions made on the essence and scope of the present invention as defined by the claims.

[0014] Reference Figure 1The invention is described as follows: A method for preparing a steel-biomass waste composite component, wherein the composite component is composed of a factory-prefabricated hollow thin-walled steel column (1), a factory-prefabricated steel sleeve (2), a hollow raw bamboo with bamboo nodes opened (3), biomass waste filled in the hollow raw bamboo (4), FRP bars (5), high-strength bolts (6), and foamed concrete (7). The method is characterized in that: when making the composite component, refer to Figure 1 (c) In the prefabricated hollow thin-walled steel column (1), the hollow raw bamboo (3) filled with biomass waste (4) is placed in the four large circular holes for fixing, and then four FRP bars (5) are placed in the four small circular holes for fixing, and then the special foamed concrete (7) is poured into the reserved rectangular holes, and after the foamed concrete (7) is expanded and formed, the prefabricated steel sleeve (2) is finally connected to the main hollow thin-walled steel column (1) through high-strength bolts (6).

[0015] Furthermore, the composite component comprises a hollow thin-walled steel column (1), wherein the upper and lower bottom surfaces of the steel column (1) are reserved with four large circular holes, four small circular holes and one rectangular parallelepiped hole, and bolt holes are reserved near the ends on the four sides.

[0016] Furthermore, the composite component comprises a hollow thin-walled steel column (1), the steel surface inside the steel column (1) is roughened with different patterns, and the outer layer of the column is painted with anti-rust paint for anti-corrosion treatment.

[0017] Furthermore, the hollow bamboo (3) included in the composite component is a hollow bamboo with broken bamboo nodes, which is filled with biomass waste (4) such as crop straw.

[0018] Furthermore, the FRP rib (5) used in the composite component is a high-performance FRP rib formed by bonding carbon fibers with polyamide resin and then extruding and drawing through a special mold.

[0019] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for preparing a steel-biomass waste composite component, the composite component comprising a factory-prefabricated hollow thin-walled steel column (1), a factory-prefabricated steel sleeve (2), a hollow raw bamboo with bamboo nodes opened (3), biomass waste filled in the hollow raw bamboo (4), FRP bars (5), high-strength bolts (6), and foamed concrete (7), wherein: In the prefabricated hollow thin-walled steel column (1), the hollow raw bamboo (3) filled with biomass waste (4) is fixed through four large circular holes, and four FRP bars (5) are fixed through four small circular holes. Then, the foamed concrete (7) is poured through the reserved rectangular parallelepiped holes and the foamed concrete (7) is allowed to expand and form. Finally, the prefabricated steel sleeve (2) is connected to the hollow thin-walled steel column (1) through high-strength bolts (6). Four large circular holes are reserved on the upper and lower bottom surfaces of the hollow thin-walled steel column (1). The hollow thin-walled steel column (1) has a small circular hole and a rectangular hole, and bolt holes are reserved near the ends on all four sides. The steel surface inside the hollow thin-walled steel column (1) is roughened with different patterns, and the outer layer of the column is painted with anti-rust paint for anti-corrosion treatment. The hollow raw bamboo (3) is pre-treated in advance to open up the internal bamboo nodes, and the hollow raw bamboo formed is filled with biomass waste (4). The FRP rib (5) is a high-performance FRP rib formed by bonding carbon fibers with polyamide resin, and then extruding and drawing through a mold.

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