Figure 18-12 Cutaway view of a typical French Gothic cathedral (John Burge). (1) pinnacle, (2) flying buttress, (3) vaulting web, (4) diagonal ribs, (5) transverse rib, (6) springing, (7) clerestory, (8) oculus, (9) lancet, (10) triforium, (11) nave arcade, (12) compound pier with responds. Gothic recipe includes 1.Rib vaults with pointed arches. 2.Flying buttresses. 3.Huge stained glass windows.
Figure 18-4 Diagram (a) and drawings of rib vaults with semicircular (b) and pointed (c) arches. Advantages of pointed arch. 1.Appears taller 2.Channels weight more directly downward and allows for large windows. 3.Permits vaulting of compartments of varying shapes.
Figure 18-10 Nave elevations of four French Gothic cathedrals at the same scale (after Louis Grodecki). Left to right-Early Gothic to High Gothic
Pinnacle- pointed ornament capping flying buttresses, helps weight them down as well.
Flying buttress-transfers the thrusts of the nave vaults across the roofs of the side aisles to the exterior wall.
Vaulting web-the masonry blocks that fill the area between the ribs of a groin vault.
Diagonal rib -rib that forms an X of a groin vault.
Transverse arch-the rib that crosses the nave at a 90 degree angle.