A method of 3D printing concrete special-shaped non-web reinforcement beam

A 3D printing and concrete technology, applied in the field of making concrete beams, can solve problems such as difficulties in making special-shaped beams, achieve the effects of reducing the use of redundant materials, avoiding shear damage, and simplifying construction

Active Publication Date: 2022-04-22
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the traditional concrete structure production method, due to the limitation of formwork setting, the production of special-shaped beams is full of difficulties, and 3D printing concrete technology does not require the characteristics of formwork, which just solves this problem

Method used

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  • A method of 3D printing concrete special-shaped non-web reinforcement beam
  • A method of 3D printing concrete special-shaped non-web reinforcement beam
  • A method of 3D printing concrete special-shaped non-web reinforcement beam

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Embodiment Construction

[0029] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] The method of the present invention adopts the 3D concrete direct printing technology, and prints the beam member upside down.

[0031] The first step is to print the rectangular flange layer 1. For the printing path, see figure 1 , because the beam flange is mainly under compression, the rectangular flange layer adopts a printing path from the edge to the center, and prints layer by layer until the design thickness of the rectangular flange layer is met.

[0032] The second step is to print the curved web layer 2 on the basis of the printed rectangular flange layer. For the printing path, see figure 2 , in order to facilitate printing, print back and forth along the width of the beam in a straight Z-shaped path, and accumulate layer by layer; the outer contour of each layer of printed concrete is hyperbolic, and the length o...

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Abstract

The invention discloses a method for 3D printing concrete special-shaped non-web reinforcement beams. The concrete special-shaped non-web reinforcement beam members sequentially include a rectangular flange layer, a curved web layer, a curved steel mesh layer, and an external concrete protection layer from top to bottom. part; it is characterized in that the method is: using 3D printing concrete technology to sequentially print a rectangular flange layer and a curved web layer; then manually arranging the curved reinforcement layer; finally using 3D printing concrete technology to print the concrete protection layer. The method of the invention optimizes the shape, sets the concrete according to the stress of the beam, saves the amount of concrete materials, lays the steel bars along the printing direction during the printing process, avoids the construction inconvenience caused by the post-installation of the horizontal bars, and solves the problem at the same time. The problem of bonding between steel bars and concrete during installation simplifies construction.

Description

technical field [0001] The invention relates to a method for manufacturing concrete beams, in particular to a method for 3D printing concrete special-shaped beams without web reinforcement. Background technique [0002] With the continuous development of 3D printing technology, 3D printing has been widely used in industrial modeling, packaging, manufacturing, architecture, art, medicine, aerospace and other fields. However, the application research of 3D printing technology in the field of construction is still in the exploratory stage. Due to the constraints of its printing method, it is impossible to reinforce the direction perpendicular to the printing path. Therefore, the application of 3D printing concrete is greatly restricted. 3D printing concrete has significant advantages in saving materials, reducing environmental pollution, and saving manpower and material resources. Therefore, only by seeking a way for its practical application can it promote its further developm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G21/00E04G21/12B28B1/00B28B23/02B33Y10/00B33Y80/00
CPCE04G21/00E04G21/12B28B1/001B28B23/02B33Y10/00B33Y80/00
Inventor 蔡建国杜彩霞张骞冯健
Owner SOUTHEAST UNIV
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