Les armatures de fer de la cathédrale de Bourges : nouvelles données, nouvelles lectures

A groundbreaking study of Bourges Cathedral reveals that iron armatures, integral to its Gothic architecture, were not part of the original design but were introduced mid-construction to address structural instability. Analysis of 70 iron samples and 58 lead sealings, combined with archaeological observations from 2010–2011, demonstrates these reinforcements—including truss rods and chains in the triforium—were contemporary with the cathedral's early thirteenth-century construction but implemented reactively to stabilize an unfinished structure. This challenges long-held assumptions about medieval engineering practices and positions Bourges as a pivotal case study in the evolution of iron integration in Gothic masonry, highlighting a phase of experimental adaptation during its formative years.

L’Héritier, M. (2016). Les armatures de fer de la cathédrale de Bourges : nouvelles données, nouvelles lectures. Bulletin Monumental, 174(4), 447–465. https://doi.org/10.3406/bulmo.2016.12893