Novel rocking interconnection for superior prefabricated prefinished modular building system

An innovative framework is introduced for the construction of prefabricated, prefinished multistorey buildings, which is designed to facilitate process automation during both fabrication and assembly phases. The backbone of this framework is a novel rocking steel interconnection (RSI) that is manufactured offsite and enables quick assembly and disassembly without requiring specific access at the construction site. The construction framework aligns with the principles of design for manufacturing, assembly, and disassembly through the utilisation of a set of standardised components in a kit of parts format. The design provides flexible open spaces for automated architectural planning within a modular framework and obviate the requirement for a structural core, thereby significantly enhancing construction speed and efficiency. The paper presents the conceptual design of the backbone, the intricacies of the fabrication process, assembly and disassembly considerations, key features, and subsequently examines its performance through a case study conducted with a regular plan. Findings from the study indicate that the backbone can support buildings using self-supporting units without necessitating a structural core. This framework accelerates construction timelines, reduces material consumption, and enables reliable construction with high rigidity due to the proposed interconnection.