ケルン大聖堂リブ・ヴォールトNo.90の幾何学的考察

概要

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This paper is concerned with the geometrical examination of drawings to measure the rib-vault No. 90 in Cologne Cathedral. There is almost nothing on this kind of measure. One reads here and there references on the rib-vault that have been constructed in the double-curvature. The rib-vault consists of arches, ribs and webs. This analysis is for the accurate configuration of the rib-vault. We researched the geometry of the transverse arches, wall arches and the cross rib, except we exclude the examination of wall ribs because of few measured points. These arches and ribs were turned out to have two centers. These facts will show too old rib-vault and if we have to guess, it may be possible to say two stages of construction in which the adjustment occurred on the way in webbing. The double-curvature of rib-vault is used by the circular shape of webbing in measured drawings.
社団法人日本建築学会の論文
2009-02-28