Catenary arch
Also known as: alysoid · chainette
- 1Follows an inverted catenary curve.
- 2Used in buildings since ancient times.
- 3Distinct from a parabolic arch.
- 4Often misclassified due to visual similarity at shallow profiles.
- 5Based on the shape of a suspended chain.
A catenary arch is a type of architectural arch that follows an inverted catenary curve.
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Structural engineering principle used by Gaudí
Gaudí utilized hanging chain models to determine the optimal shape for the arches and vaults, ensuring structural stability without the need for external buttresses.
structural element used in the attic
Gaudí utilized a series of catenary arches in the attic to support the roof, a technique he frequently employed to distribute weight efficiently.
structural principle fundamental to his design methodology
Gaudí used hanging chain models to determine the optimal shape for his arches, allowing him to create stable, gravity-defying structures without the need for external buttressing.
structural element used in the design
Gaudí utilized catenary arches in the attic of Casa Batlló to create a self-supporting, lightweight structure that mimics the shape of a ribcage.
A catenary arch is a specialized architectural form that follows the shape of an inverted catenary curve. This curve is defined by the shape a chain or cable assumes when it is suspended from two points and allowed to hang freely under its own weight. The use of this geometry in construction dates back to ancient times, providing a stable and efficient method for supporting structural loads.
A mudbrick catenary archWikimedia Commons: File:Catenaria_in_terra_cruda_a_più_corsi_di_conci.jpegA catenary curve (left) and a catenary arch, also a catenary curve (right). One points up, and one points down, but the curves are the same.Wikimedia Commons: File:Hanging_chain_and_arch.svgRobert Hooke, holding a hanging chain, which forms a catenary curveWikimedia CommonsLandscape Arch, UtahWikimedia CommonsSaqqara ostraconWikimedia CommonsTaq KasraWikimedia CommonsRice HouseWikimedia CommonsMarquette Plaza in MinneapolisWikimedia Commons It is common for the catenary arch to be confused with a parabolic arch due to their visual similarities. While they may appear identical at shallow profiles, they are mathematically distinct. The catenary is a specific geometric curve, whereas a parabola follows a different mathematical function, leading to frequent misclassification in architectural analysis.