Intrados is a term commonly used in architecture to refer to the inner curve of an arch. The spelling of the word may appear unusual, but it follows the rules of the International Phonetic Alphabet (IPA) transcription. The word is pronounced as [ɪntrədəʊs], with its stress placed on the second syllable. The first syllable is pronounced as 'in', while the remaining syllables are pronounced as 'tra' and 'dos' respectively. By using the correct pronunciation and transcription, the word Intrados is easily understood by architects and enthusiasts alike.
In architecture and engineering, the term intrados refers to the inside or lower curved surface of an arch, dome, or vault. It is the opposite of extrados, which refers to the outer or upper curved surface of these structures. Intrados is derived from the Latin words "intra" meaning "within" and "dorsum" meaning "back" or "ridge."
The intrados is the innermost surface that creates the concave shape of an arch, dome, or vault. It is often visible from below when these structures are viewed from the ground or the interior of a building. The intrados is typically smooth and continuous, following a curved or arched profile that conforms to the inherent structural nature of these architectural features. It frequently exhibits decorative elements or intricate details, particularly in historical or ornate constructions.
The intrados plays a significant role in distributing the weight and forces applied to an arch, dome, or vault. It bears the compressive loads or inwardly directed forces that act on these structures, allowing them to distribute the weight and maintain their stability. Hence, the intrados is a critical component that contributes to the overall structural integrity of the architectural element it is associated with.
With its distinct curvature and position within architectural forms, the intrados adds aesthetic appeal to the design. Architects and engineers often exploit the intrados's visual impact to create dramatic or striking interior spaces, where the arched or domed ceiling forms the focal point of the environment.
In arch., the inner and lower curve of an arch.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "intrados" originates from the Latin language. It is a combination of two Latin words: "intra", meaning "inside" or "within", and "dorsum", meaning "back" or "ridge". When combined, these two words form "intrados", which refers to the inner or concave side of an arch or a vault. The term is often used in architecture and engineering to describe the underside or inner curve of these structures.