4D printing method of reinforced anti-collision concrete component with biomimetic helical structure

Abstract

This invention belongs to the field of building materials technology and discloses a 4D printing method for a biomimetic spiral structure reinforced anti-collision concrete component. The method includes the following steps: S1, preparing two slurries: steel fiber reinforced UHPC slurry and conductive foam-UHPC composite material. The conductive foam-UHPC composite material includes a matrix and conductive nanomaterials, with the matrix material being the same as the steel fiber reinforced UHPC slurry material; S2, establishing a three-dimensional parametric model based on the Bouligand spiral structure; simultaneously planning a sensor network in the three-dimensional parametric model and designing a continuous spiral printing path with variable pitch characteristics; simultaneously, pre-setting implantation points for microcapsule sensors in the extrusion path of each layer of steel fiber reinforced UHPC slurry; S3, multi-material collaborative printing; S4, constructing the spiral stacked structure. This invention integrates a "multi-level energy-consuming structure" and a "damage self-diagnosis function" in the 4D printing process.

Images