File:Arcs.surbaisses.2.png

...En multipliant et rapprochant ces arcs, ils pouvaient remplacer les voûtains C par des dalles formant plafond, posées sur des pannes en pierre (si les matériaux s'y prêtaient), ainsi que le fait voir la fig. 129. Ces pannes étaient munies de feuillures, de façon à présenter leur surface supérieure au niveau de l'aire du dallage, comme l'indique la ligne ponctuée EF...

This image comes from Dictionary of French Architecture from 11th to 16th Century (1856) by Eugène Viollet-le-Duc (1814-1879).

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