Rebar, device and construction method for 3d-printing a concrete interlayer structure

Abstract

The present application relates to the technical field of engineering construction and provides a rebar, a device and a construction method for 3D-printing a concrete interlayer structure. The rebar at least comprises: a body in the form of a chain structure, comprising a plurality of sub-parts mutually spliced, wherein the body is adapted for being sandwiched between two adjacent upper and lower cement-based slurry layers; a rotatable joint arranged between two adjacent sub-parts in such a way that the two adjacent sub-parts are rotatably connected to each other; insertion members, wherein both sides of each of the sub-parts are provided with the insertion members extending away from the center of each of the sub-parts, wherein the insertion member on one side of each of the sub-parts is adapted for being inserted in an upper cement-based slurry layer, and the insertion member on an opposite side of each of the sub-parts is adapted for being inserted in a lower cement-based slurry layer. In summary, the rebar can simultaneously enhance the bearing capacity of the printed structure both in the horizontal direction and in the vertical direction, improve the overall connection strength of the printed structure, so that the building structure is not prone to damage or collapse, which is conducive to reducing any potential safety hazard.