A layer-by-layer embedding method for 3D printed concrete structures

Abstract

The invention discloses an inter-layer embedding method for 3D printing concrete structures: select basic structural components, calculate the load-bearing capacity of the basic structural components based on the component size and material mechanical properties, and determine the size, layout, and layout of the embedded structure. Spacing and arrangement quantity; determine the bending length at both ends of the embedded structure based on the component type, load-bearing conditions and printed concrete layer thickness of the basic structural components. The bending length at both ends of the embedded structure is greater than the thickness of a single concrete layer; based on the basic The applicable printing method for structural components is to print the concrete layer, and arrange the embedded structure between the concrete layers according to the arrangement method and arrangement spacing of the embedded structure. Repeat printing the concrete layer and arranging the embedded structure until a complete basic structural component is formed. This method uses an embedded structure to strengthen the 3D printed concrete structure between layers to improve the shear resistance of the concrete structure.

Description

technical field [0001] The invention relates to the technical field of 3D printing and building structures, in particular to an interlayer embedding method for 3D printing concrete structures. Background technique [0002] 3D printing technology is a new type of "de-modulus" additive manufacturing technology. Applying 3D printing technology to the traditional construction industry can achieve the purpose of freeing concrete from formwork and demolition, saving costs, and protecting the environment, and 3D printing concrete technology has strong With excellent shaping ability, it can easily print out beautiful architectural artworks. There is a precedent for applying 3D printing technology to building bridge structures. On January 12, 2018, the world's largest 3D printed concrete pedestrian bridge was completed in Shanghai, marking a new milestone for 3D printed concrete technology from research and development to practical application. This step also shows that my country's ...

AI Technical Summary

Problems solved by technology

[0003] Although 3D printing materials have shown good construction applicability in terms of printability and performance after printing, the current printing construction technology is still unable to provide reinforcement during the printing process, and can only use oriented fibers inside the layer strips (CN 106313272 A), rope wire (CN 109227875 B) carries out the reinforcement of parallel layer bar direction, has limited the form and bearing capacity of printing structure

Images