Arch Flashcards
Triangular Arch
Reverse o Gee Arch
Ogee Arch
Lancet Arch
Rampant Round Arch
inflexed arch
Equilateral Pointed Arch
Segmental Arch
(less than the semi circle, remember “Parts of the circle, which are arc, segment and sector”
Parabolic Arch
Three Centered arch
horse shoe arch
Tudor Arch
Elliptical Arch
Shouldered Flat Arch
Tre Foiled Arch
A curved structure for spanning and opening, designed to support a vertical load primarily by axial compression.
Arch
An arch constructed of individual stone or brick voussoirs.
Masonry Arch
Any of the wedge-shaped units in a masonry arch or vault, having side cuts converging at one of the arch centers.
Voussoir
The wedge-shaped, often embellished voissor at the crown of an arch, serving to lock the other voussoirs in place.
Keystone
(Crown means top or highest level, remember crown in Pipe sections - Invert and Crown)
The exterior curve, surface or boundary of the visible face of an arch.
Extrados or Back
A decorative molding or band on the face of an arch following the curve of the intrados.
Archivolt
The inner curve or surface of an arch forming the concave underside.
Intrados
The height of an arch from the spring line to the highest point of the intrados (sometimes at the bottom of the Keystone).
Rise
The point at which an arch, vault or dome rises from its support.
Spring or Springing
The first voussoir resting on the impost of an arch.
Springer
The highest part or point of a convex construction, such as an arch, vault or roadway.
Crown
Either side of an arch curving down from the crown to the impost.
Haunch