I-shaped high-strength recombined bamboo beam and preparation method thereof

Abstract

The invention discloses an I-shaped high-strength reconstituted bamboo beam and a preparation method thereof. The I-shaped high-strength reconstituted bamboo beam structurally comprises a high-strength reconstituted bamboo upper flange, a high-strength reconstituted bamboo lower flange, a high-strength reconstituted bamboo web and low-density reconstituted bamboo shear-resisting bamboo pins, wherein the high-strength reconstituted bamboo upper flange and the high-strength reconstituted bamboo lower flange are connected with the upper portion and the lower portion of the high-strength reconstituted bamboo web through clamping slots A and B and the shear-resisting bamboo pins A and B. The I-shaped high-strength reconstituted bamboo beam and the preparation method thereof have the advantages that (1) on the basis of ensuring the bearing force of the beam, natural bamboo resources are utilized fully, and loads of building production to the environment can be relieved; (2) the flanges are formed by a sizing dimension, the height of the beam is adjusted through the height of the web according to the stress situation, standard production is facilitated, and the requirements for the assembly type structure and building variety can also be met; (3) the clamping slots and the shear-resisting bamboo pins are adopted for connection, the process is simple, connection is reliable, and quality is easy to control; and (4) the I-shaped section takes full advantage of the characteristics of high tension strength and high compression strength of high-strength reconstituted bamboo, the bearing efficiency of the beam is improved, materials are saved, weight of components is reduced, the preparation cost is lowered, and building assembly is facilitated.

Description

technical field [0001] The invention relates to an I-shaped high-strength recombined bamboo beam applicable to construction engineering structures and a preparation method thereof, belonging to the technical field of engineering. Background technique [0002] The deterioration of the environment, the shortage of resources, the pursuit of sustainable development, and environmentally friendly building materials have become hot spots in the field of civil engineering today. The construction industry is not only a major consumer of total energy consumption, but also has an impact on the environment that cannot be ignored. Bamboo has an important role in my country. The reputation of the second forest, bamboo is a renewable and degradable natural biomass composite material, which can be matured in 3-5 years. It has many excellent characteristics of hard broad-leaved trees, and its specific strength and specific stiffness are higher than steel. It is an ideal green high-strength bui...

AI Technical Summary

Problems solved by technology

[0005] However, at this stage, the theory of bamboo and wood structure design in my country is not perfect, and the design methods are backward. Under the guidance of sustainable development, under the situation of increasingly scarce labor force, it is very meaningful to develop bamboo structure buildings with prefabricated and factory standardized production. Therefore, according to the modern Structural analysis technology and structural design principles are very necessary for the analysis and design of prefabricated bamboo structures

[0006] At present, the prefabricated structure with concrete and steel as the main raw materials has the following disadvantages: (1) heavy weight; (2) inconvenient transportation; (3) the size of the components is determined according to the design requirements, which is not universal, which is not conducive to Standardized production; (4) high energy consumption, high pollution, and relatively high cost; the present invention can effectively improve the above conditions

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