Digitales Prozessmodell beim Beton-3D-Druck

摘要

In order to be able to produce concrete structures autonomously, the demanding boundary conditions of the construction processes have to be mastered by machine. The construction machine must be controlled via adapted data structures and have a sophisticated data management. The basis will be a BIM building model containing both geometric and material information. The data required for the concrete 3D printing process should be extracted from the BIM model and then converted into machine control data via an integrated digital process chain. Since 2014, an interdisciplinary team of TU Dresden has been developing the extrusion-based concrete 3D printing process, named CONPrint3D. The process chains already established for small-format 3D printing are not applicable to the data management of large-format 3D printing - especially for CONPrint3D. The exchange of data via the IFC interface and the development of customized slicing software programs are decisive for implementing 3D printing reliably and economically in the construction industry. In addition, in a pre-process, the data obtained from the BIM model must be supplemented by printing-specific data and combined to an overall data model. This article analyzes, if the existing digital process chain is applicable for concrete 3D printing. The aim of the article is to highlight existing deficits and possible modifications of the existing data process chain.