225: On The Tectonic Properties of 3d Printed Architecture

This study investigates how the tectonic properties of 3D printed concrete housing, namely texture, geometry, and spatial context, influence user perception. Grounded in architectural theory, particularly Frampton’s view of tectonics as the expressive articulation of construction, the research combines literature review, case study, and empirical surveys. Two sessions were conducted: one at Casa Semilla, a full-scale prototype in Concepción (n=25), and another using a 1:20 clay replica evaluated in a university setting (n=50). Participants assessed tectonic features using a validated survey instrument, with results analyzed statistically and qualitatively. Findings show that curved geometries and textured surfaces are consistently associated with emotional resonance and perceived comfort. Female participants expressed higher receptiveness, suggesting perceptual differences across user profiles. Overall, the results highlight that tectonics plays a critical role in shaping spatial experience in digitally fabricated housing, underscoring the need to evaluate 3DCP architecture not only through technical metrics but through sensory and symbolic user engagement.