Preparation method and system of self-adaptive steel fiber
concrete prefabricated part

(10) CN115319889

(22) 13.10.2022

(43) 11.11.2022

(57) The invention discloses a preparation method of a self-adaptive steel fiber concrete prefabricated component, which comprises the following steps: carrying out microscomic numerical simulation on the component, establishing a steel fiber direction and quantity distribution model, preparing premixed mortar according to a mix proportion calculated by the steel fiber direction and quantity distribution model, determining a printing path, printing path information and steel fiber direction and quantity distribution model information are subjected to overlay analysis, steel fiber direction and quantity information at all printing paths is obtained, the information is imported into a position locator, and the steel fiber direction and quantity of the preparation system at all positions during printing are controlled in real time through the position locator. According to the preparation method of the self-adaptive steel fiber concrete prefabricated part, the electromagnetic field method and the 3D printing technology are combined, compared with the prior art, the steel fibers with the specified number can be automatically distributed according to the stress magnitude and direction in a regional and directional mode, and the defect that only one-way directional uniform distribution can be achieved through a traditional method is overcome.

(71) Univ Hebei Technology, CN