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About

John Orr is a structural engineer and researcher whose work sits at the intersection of digital fabrication, sustainable construction, and advanced concrete structures. His research focuses on developing innovative methods to dramatically reduce the environmental impact of the built environment, with a particular emphasis on low-carbon concrete shell systems and robotic fabrication techniques. Orr's most influential contribution is his pioneering work on segmented concrete shell floor systems, which leverage the mechanical efficiency of curved geometry to minimize material use while cutting carbon emissions — a paper that has already garnered 47 citations since 2023. Alongside this, his development of Automated Robotic Concrete Spraying (ARCS) for doubly-curved ribbed shells has attracted significant scholarly attention, with related publications accumulating over 35 citations, signalling growing momentum in the field of robotically fabricated structures. His research also explores optimised reinforcement layouts using robotic filament winding and the shear behaviour of fabric-formed structural members, reflecting a broad commitment to rethinking how concrete structures are both designed and built. Through combining computational optimisation, affordable robotics, and structural ingenuity, Orr is helping chart a credible path toward more sustainable construction practices, making his work essential reading for students and researchers in structural engineering and digital architecture.