Casey Hughes Architects
Vault Projection


  • Isometric views of projected vaults.
  • This research looks at form generation through an adaption of classical vaulting techniques. In classical vault design, an arch is extruded to form a barrel vault or intersected with another barrel vault at 90 degrees to create a groin vault. This research extends this method by varying the angle of intersection of the vaults and other parameters to create a variety of vaulting conditions. Because the forms are created through a projective method the resultant surfaces are ruled and fully developable. This method ensures the constructability of the resultant vaults regardless of their formal complexity.

    This study was created in Digital Project, a parametric software developed for aeronautics design, and adapted for the rationalization of complex architectural forms.
  • Classic vault projection techniques from L’Architetettura Civile - Ferdinando Galli da Bibiena; 1711.
  • Plan views of projected vaults.
  • 1. Projection angle- Vary the angle from the typical 90 degs.
  • 2. Crop Cube Rotation- Angle of cube used to crop the extremities of the surface.
  • 3. Repeat Vault- A duplicate of the original vault is rotated and intersected with the first.
  • Classical Groin Vault- projection angle: 90 deg, crop rotation: 90 deg sq, vault repeat: none
  • Classical Barrel Vault- projection angle: 0 deg, crop rotation: 90 deg sq, vault repeat: none
  • Iteration #9- projection angle: 75 deg, crop rotation: 75 deg sq, vault repeat: none
  • Iteration #39- projection angle: 45 deg, crop rotation: 60 deg sq, vault repeat: 30 deg
  • Iteration #42- projection angle: 0 deg, crop rotation: 60 deg sq, vault repeat: 30 deg
  • Iteration #50- projection angle: 90 deg, crop rotation: circle, vault repeat: 30 deg
  • Iteration #55- projection angle: 30 deg, crop rotation: circle, vault repeat: 30 deg