Method for reinforced 3D hybrid printing of shear wall

A hybrid printing and 3D printing technology, applied in the field of 3D printing, can solve the problems of discounted seismic performance of shear wall components, easy tensile damage of the printed layer, unqualified building materials, etc., to improve the degree of construction automation and ensure the reliability of nodes , The effect of fast construction progress

Inactive Publication Date: 2019-10-25
ZHEJIANG UNIV
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Problems solved by technology

The quality of binding steel bars and pouring concrete is closely related to the proficiency of construction workers and the degree of understanding of drawings. Factors such as high mobility of workers, insufficient training, rushing progress, unqualified building materials, long construction period, and bad weather will all As a result, the seismic performance of the final shear wall members is greatly reduced
In addition, when the existing 3D printed walls are subjected to horizontal loads such as earthquake loads and strong wind loads, the printed layers are easily damaged by tension, which is currently limited to the use of partition walls

Method used

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  • Method for reinforced 3D hybrid printing of shear wall
  • Method for reinforced 3D hybrid printing of shear wall
  • Method for reinforced 3D hybrid printing of shear wall

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Embodiment Construction

[0018] Embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0019] Such as figure 1 , 2 As shown, a method for reinforced 3D hybrid printing shear wall, including the following steps:

[0020] (1) First, a 3D printer is used to simultaneously print the outer reinforced hoop layer 1 and the inner reinforced truss structure 2 of the shear wall.

[0021] 3D printing reinforced hoop layer 1 is 3D mixed printing reinforced high-toughness cement-based cementitious material. The cement-based cementitious material can be made of cement slurry. Reinforcement is 3D printing toughened long fiber while 3D printing cement slurry 11, so as to enhance the tensile performance of the hoop layer 1, so that the hoop layer 1 has high compressive strength and tensile strength at the same time. The inner layer reinforced truss structure 2 is arranged in a zigzag shape in the hoop layer 1 to enhance the bearing capacity of...

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Abstract

The invention provides a method for reinforced 3D hybrid printing of a shear wall. The method comprises the following steps that a 3D printer is firstly used for printing an outer layer reinforced hoop layer and an inner layer truss structure of the shear wall at the same time; then a mechanical lifting device is used for vertically inserting longitudinal bars in the hoop layer; and finally pumping and filling of self-compacting concrete into the hoop layer are achieved. The method has the advantages of being convenient to manufacture, reliable in connection, fast in construction progress, high in automation, high in bearing performance and capable of being widely applied to design and construction of a seismic structural wall of the general structure.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a method for reinforced 3D hybrid printing shear walls. Background technique [0002] At present, 3D printing technology has been widely used in aviation, medical, manufacturing and other industries. Although 3D printing has also received widespread attention in the construction industry, due to the low tensile strength of 3D printed concrete materials and the difficulty of printing steel bars, it is still limited to the production of non-structural components in the construction of building structures. [0003] Shear wall is a structural member with good vertical and horizontal bearing capacity. At present, most reinforced concrete shear walls need to bind steel bars on site, set up formwork on site, pour concrete and then maintain and form it. The quality of binding steel bars and pouring concrete is closely related to the proficiency of construction workers and the degre...

Claims

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Application Information

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IPC IPC(8): B28B1/00B28B23/02E04B2/56
CPCB28B1/001B28B23/02E04B2/56
Inventor 章红梅段元锋
Owner ZHEJIANG UNIV
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