Fiber-bamboo composite pipe and concrete combination structure

Abstract

The invention discloses a fiber-bamboo composite pipe and concrete combination structure. The fiber-bamboo composite pipe and concrete combination structure is characterized by comprising core concrete (1) and a fiber-bamboo composite pipe (2), wherein, the fiber-bamboo composite pipe (2) is sequentially composed of an isolation layer (21), a bamboo reinforcement layer (22) and a fiber reinforcement layer (23) from inside to outside; the bamboo reinforcement layer (22) is constituted of a longitudinal bamboo fiber layer (221) or a transverse bamboo fiber layer (222) or a combination of the longitudinal bamboo fiber layer (221) and the transverse bamboo fiber layer (222); the longitudinal bamboo fiber layer (221) and the transverse bamboo fiber layer (222) are made by winding composite bamboos or raw bamboos layer by layer; the fiber reinforcement layer (23) is wound on the outer surface of the bamboo reinforcement layer (22); and the fiber-bamboo composite pipe (2) is filled with the core concrete (1) which is self-compacting micro-expansion concrete with the expansion rate being 0.01%-0.04%. The fiber-bamboo composite pipe and concrete combination structure has the advantages of high bearing capacity, good ductility, good durability and the like, the advantages and characteristics of multiple materials such as the concrete, bamboos and fibers are fully utilized, and the adopted bamboo composite material conforms to the advantages of low carbon, environmental friendliness, energy saving and sustainable development.

Description

technical field [0001] The invention belongs to the technical field of civil engineering structures, and in particular relates to a concrete composite structure, in particular to a fiber-bamboo composite tube-concrete composite structure. Background technique [0002] Because the reinforced concrete structure has the advantages of good modelability, good durability, and low cost, it is often used as the main force-bearing member in the engineering structure. For the vertical bearing members of reinforced concrete, such as bridge towers, piers, columns, pile foundations, etc. The mechanical performance plays a decisive role in ensuring the safe use of the structure and standing upright under accidental loads such as earthquakes. The ultimate failure of ordinary reinforced concrete vertical members often presents unexpected brittle characteristics, while different tube-confined concrete vertical structures often have the advantages of convenient construction, high bearing capa...

AI Technical Summary

Problems solved by technology

However, ordinary FRP pipes use fibers with high energy consumption as the main raw material. The products and waste materials are not recyclable, not environmentally friendly, consume a large amount of mineral resources, and the resources are not renewable.

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