A reinforced concrete structure and structure construction method based on 3D printing

Abstract

The invention discloses a reinforced concrete structure based on 3D printing and a structure construction method. The method comprises the following steps that a foundation bottom plate is constructed, and a connection section is reserved on the foundation bottom plate; a steel bar structure of a structural column is bound to the connection section; a first prefabricated concrete outer shell is manufactured by adopting 3D printing, and concave-convex lines are formed in the inner surface of the first prefabricated concrete outer shell; the first prefabricated concrete outer shell is arranged on the steel bar structure of the structural column in a sleeved mode; a steel bar structure of a structural beam is bound, and the steel bar structure of the structural beam is bound to the steel bar structure of the structural column; a second prefabricated concrete outer shell is manufactured by adopting 3D printing; the second prefabricated concrete outer shell is mounted on the steel bar structure of the structural beam; concrete is poured in the second prefabricated concrete outer shell, and the structural beam and the structural column are completed. The prefabricated concrete outer shells are formed integrally by adopting a 3D printing technology, the continuous concave-convex lines are formed in the inner surfaces of the prefabricated concrete outer shells, the contact surfaces between the concrete poured in the prefabricated concrete outer shells and the inner surfaces of the prefabricated concrete outer shells are enlarged, compared with a smooth inner surface, friction is increased, bonding strength is improved, and a shell disengagement phenomenon is avoided.

Description

technical field [0001] The invention relates to an assembled reinforced concrete structure, in particular to a 3D printing-based reinforced concrete structure and a construction method for the structure. Background technique [0002] The prefabricated reinforced concrete structure is an important direction for the development of building structures, which is conducive to the development of building industrialization, improving production efficiency, saving energy, and developing green and environmentally friendly buildings. There is a better prefabricated reinforced concrete structure that uses the shell prefabricated core cast-in-place prefabricated reinforced concrete structure, which prefabricates the concrete protective layer of the beam and column members of the prefabricated reinforced concrete structure together with the stirrups to form a mouth-shaped precast concrete shell ; After the shell is assembled and positioned and the main reinforcement is configured, the co...

AI Technical Summary

Problems solved by technology

[0003] However, the binding ability between the inner surface of the prefabricated concrete shell and the internal concrete of this shell prefabricated core cast-in-place assembled reinforced concrete structure is not high, and it is easy to peel off. At present, there is no better method to solve the problem of the precast concrete shell Bonding issues between surface and interior concrete

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