Abstract
This project investigates the shape space of reusable floor slab systems designed for circular construction through dry, detachable, and modular connections enabled by geometrically interlocking elements. By avoiding wet joints, the approach promotes full reusability and adaptability. Two design variants are experimentally evaluated: purely interlocking concrete elements and systems enhanced with threaded and post-tensioned external reinforcement. To realize these concepts, the project develops a multimodal digital fabrication workflow that integrates 3D concrete printing, in-process reinforcement, robotic casting, and robotic milling to achieve high-precision dry joint geometries. Structural performance is optimized through parametric design and topology optimization with periodicity constraints, targeting maximal strength with minimal material consumption. Initial investigations focus on regular assemblies based on a single standard element, followed by more flexible configurations combining multiple shapes to improve alignment with principal stress trajectories. The project integrates expertise in geometric optimization, numerical simulation, and physical prototyping to rigorously assess structural behavior, fabrication precision, and feasibility of assembly and disassembly.
