Chapter Part 1 Ribbed vaults were one of the three structural innovations that was employed in Gothic architecture. Ribs made a framework and were necessary during construction to support the web until the mortar dried.
The Gothic Style - Building Characteristics: Ribbed Vaulting and Soaring Ceilings Ribbed Vaulting is characteristic of the Gothic style. Monks' Hall, Monastery of Santa Maria de Alcobaca, Portugal, AD.
Basilique de St-Denis - Arguably the most important Gothic Church in Paris because it was the first to display the pointed arches and rib vaults known today as Gothic Architecture Designed by Abbot Suger
Studying this right now. NORMAN architecture - Nave vaults, Durham Cathedral, England (begun 1093 and largely completed within 40 years) (NB: at the end is the Quire - Original east end was replaced by this Gothic choir, Vault height about