Three centered arch

masonry, Three Centre Arch, basket handle arch

A 3-centered arch is a type of arch that is made up of three tangent circular arcs. The center points for the smaller outer arcs are located at two points on the spring line, which is the horizontal line that marks the top of the arch. The center point for the larger center arc is located at the intersection of the two smaller arcs. Downloads online #arches #arch #structures #buildings #construction

(Contributed by Walter Hooker) The nature of the various forms of arches and the technical terms used in connection therewith have already been explained under the head of Arches in Volume I. of th...

The DHaus Company has completed The Arches, a row of six partially sunken townhouses in a north London conservation area.

Lugo Cathedral, Spain. The doorway of the north portal is made up of three archivolts and a dust cover with semicircular arches and a bilobed lintel, decorated with a mandorla with a splendid seated Pantocrator; of great originality is the pendant in the shape of a capital that hangs from the center, where the Last Supper is represented. It is carved in marble and dates from the 12th century; the ironwork of the door is from the 13th century.

Inspired by the architecture in Italy’s capital that is less prevalent in public consciousness, Hungarian photographer Marietta Varga set about to create ‘Another Rome’: a...

A round corner flat arch is a type of arch that is made up of three tangent circular arcs. The arcs are centered at the spring line of the arch, the crown of the arch, and a point halfway between the spring line and the crown. The top of the arch is a straight line that connects the tangents of the two corner circles. Downloads online #arches #arch #structures #buildings #construction

A 3-centered Ogee arch is an arch that is made up of three tangent circular arcs. The two outer arcs are convex, while the center arc is concave. This creates a smooth, S-shaped curve that is often used in Gothic architecture. 3-centered Ogee arches are typically taller than they are wide, and they can be found in a variety of sizes and shapes. Downloads online #arches #arch #structures #buildings #construction

A 5-centered arch is a type of arch that is constructed using five centers. The five centers are located at the top of the arch, the bottom of the arch, and the midpoints of each side of the arch. The arch is then drawn by connecting the centers with arcs. 5-Centered Arches have typical spans between 4’-12’ (1.22-3.66 m) and arch rises of 17.7”-53.5” (45-136 cm). Arches are commonly paired with wall depths of 8”-16” (20.3-40.6 cm) and a course depth between of 4”-16” (10.2-40.6 cm).