Lexicon
Catenary Arch

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A catenary arch is the arch described by the line passing through all the points of centre of gravity of its components. It is the inverse of the figure described by a free-slung chain from which it derives its name, from the Latin word cat?na which means 'chain. It is not a parabolic arch. Catenary arches are strong because they redirect the vertical force of gravity into compression forces pressing along the arch's curve. In a uniformly loaded catenary arch, the line of thrust runs through its center. Catenary arches characterize the work of the Catelonian architect, Antonin Gaudi