The Hexabusch demonstrator investigates modular design strategies to improve prefabrication efficiency, dis‐ and reassembly, and sustainability of prefabricated curved concrete structures. Responding to the construction sector's high material and energy consumption, the project realizes a demonstrator of exchangeable, lightweight concrete modules designed for flow production and circularity. Hexabusch constitutes a partial realization of the Hexakrone design for the Botanical Garden of TU Dresden, functioning as shelter and experimental structure in a sensitive natural environment. The design is based on a curved grid‐shell of planar hexagonal modules with flat interfaces, reconciling architectural expressiveness with requirements regarding weight, geometric rationalization, and disassemblable connections. A clustering method regroups modules and reduces typological diversity, lowering production costs and minimizing formwork. Modules use high‐strength concrete and CFRP reinforcements, enabling slender cross‐sections without reinforcement corrosion. As part of the SPP 2187 Priority Program, Hexabusch demonstrates scalable and adaptable construction methods, providing a proof‐of‐concept for sustainable, modular concrete architecture and informing future larger‐scale applications.
Billeb et al. (Mon,) studied this question.