Built-in vertical steel plate reinforced recombined bamboo beam and preparation method thereof

Abstract

The invention relates to a built-in vertical steel plate reinforced recombined bamboo beam and a preparation method thereof. A built-in vertical steel plate is formed by direct gluing and hot pressing in the recombined bamboo beam processing engineering, grooving is not needed, secondary processing is not needed, and therefore the integrity of the beam can be guaranteed. The steel plate is vertically placed, the rigidity of the beam can be effectively improved, and the problem that the recombined bamboo beam serving as a flexural member is too large in flexural deflection is solved. Through holes are evenly formed in the steel plate, the through holes do not need to be formed in the positions close to the upper edge and the lower edge of the steel plate, and operation is convenient; and meanwhile, the steel plate is provided with the holes, the bonding effect between the steel plate and recombined bamboo can be enhanced, on the premise that the rigidity is not greatly affected, the purpose of saving steel is achieved, and economic benefits are improved. The vertical steel plate is placed in the recombined bamboo beam, the rigidity of the recombined bamboo beam is improved, the reinforcing mode is convenient and effective, meanwhile, steel plate corrosion can be avoided, and the safety and durability of the member are enhanced.

Description

technical field [0001] The invention relates to the technical field of bamboo and wood in civil engineering, and more specifically relates to a built-in vertical steel plate reinforced recombined bamboo beam and a preparation method thereof. Background technique [0002] Compared with wood, bamboo has the advantages of green nature, high strength, good toughness, and short growth cycle. It is called "plant reinforcement" by structural engineers. In recent years, various structural engineering bamboo products have appeared, such as recombined bamboo and glued bamboo. . Reconstituted bamboo is a new bamboo material that reorganizes and strengthens bamboo, that is, bamboo is processed into long bamboo strips, bamboo filaments or crushed into bamboo filaments, dried and dipped in glue, and then dried to the required moisture content , and then placed in the mold, the profile is cured by high temperature and high pressure. Compared with natural bamboo, recombined bamboo has the...

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Problems solved by technology

[0003] In the existing recombined bamboo beams, although the recombined bamboo inherits the characteristics of natural bamboo, which is green and natural, and has good toughness, and successfully overcomes its shortcomings such as large discrete mechanical properties, easy insects, and poor durability, as a structural The elastic modulus of the recombined bamboo girder is relatively low as the main flexural member. When designing the recombined bamboo girder, it is often controlled by the stiffness, and the strength of the recombined bamboo beam has not been fully utilized.

Therefore, when checking and calculating the bearing capacity of restructured bamboo beams, in order to meet the rigidity requirements, a larger cross-sectional size is often required, which causes waste of materials and increases the weight of the structure itself

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