Systematic calculation of flying buttress parameters by means of geometric regression

Identifier:  imarina:9243753

Handle: https://hdl.handle.net/20.500.11797/imarina9243753

Authors:  Samper, Albert; Herrera, Blas; Costa-Jover, Agusti

Abstract:
This paper investigates the geometric parameters of a flying buttress: position of the center O of the intrados arch, radius R of the intrados arch, inclination α, rise F, span distance L and horizontal thickness E of the culée. Using photogrammetrical techniques, point cloud control, vector redrawing and geometric regression, this paper provides an objective, non-arbitrary procedure to determine the center O and the radius R of a flying buttress arch. This results in two outcomes: 1) Non-arbitrary determination of the remaining parameters α, F, L and E; 2) Non-arbitrary classification of flying buttress arches into two types, according to the criterion laid down by Viollet-le-Duc in 1854.