3D printed wall body with hollow or spanning structure and machining method for 3D printed wall body

Abstract

The invention discloses a 3D printed wall body with a hollow or a spanning structure. A cavity is reserved in a wall body in the printing process of the wall body by utilizing a 3D printing device, a spanning screen board is laid on the reserved cavity, the two ends of the spanning screen board are in an overlapping joint with cement mortars of the reserved cavity, and the overlapping length is not less than one-fourth of the width of a spanning groove, and the cement mortars are printed on the spanning screen board layer by layer. According to the 3D printed wall body with the hollow or the spanning structure, various required holes can be directly reserved on the 3D printed wall body during fabricating of the wall body by adding the spanning screen board, the facts that materials are wasted caused by supporting by using formworks, and operation of the 3D printing device are not convenient are avoided, meanwhile, the screen board can be firmly combined with the wall body due to the fact that screen holes are formed in the spanning screen board, and the condition that the overall strength of the wall body is affected due to the fact that contact parts between a traditional transverse beam and the wall body is not firm enough is avoided.

Description

technical field [0001] The invention relates to a 3D printed wall, specifically a 3D printed wall with a hollow or spanning structure and a processing method thereof, belonging to the technical field of building materials. Background technique [0002] Existing building houses mainly include wall brick structure, light steel keel gypsum board structure and reinforced concrete structure. The walls of the two kinds of structure building houses have complex construction technology, various auxiliary materials required, long construction period, and engineering There are many garbage, and the disadvantages are heavy. [0003] With the rapid development of social economy, people's requirements for living standards and living environment are constantly improving, especially for residential and office buildings. When making 3D printed walls, door frames, window frames and For walls with overhang structures such as eaves, and for 3D printing of large-area hollow walls, the current ...

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Problems solved by technology

[0002] Existing building houses mainly include wall brick structure, light steel keel gypsum board structure and reinforced concrete structure. The walls of the two kinds of structure building houses have complex construction technology, various auxiliary materials required, long construction period, and engineering There are many garbage, and the disadvantages are heavy

[0003] With the rapid development of social economy, people's requirements for living standards and living environment are constantly improving, especially for residential and office buildings. When making 3D printed walls, door frames, window frames and For walls with overhang structures such as eaves, and for 3D printing of large-area hollow walls, the current method is usually to add molds, set beams, or dig holes after the wall is made. The operation is complicated and the wall is lowered. The structural strength of the body, while the 3D printing method currently used for large-area hollow walls mostly adopts vertical printing, and the wall that is too high will have a large pressure on the bottom of the wall during the printing process, which may easily cause the wall to collapse or deform. The wall is placed horizontally, the hollow structure of the wall cannot be realized, and the cavity with a large span is easy to collapse, which brings many adverse effects to the construction of the 3D printed wall

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