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Descripción
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| Tas-de-charge is the springing of Gothic vaults, where ribs are not separate yet, and their mouldings may intersect. Archeologist Robert Willis was the first to explain the way to construct this part of the vault (1842), showing examples where some lines are traced directly on the stone with templates. Viollet-le-Duc and Choisy confirmed these procedures, but offered no further progress in this field. A tas-de-charge is formed by several horizontal pieces as a continuity of the wall, the last one ending in a sloped surface in order to support the first voussoir. These two sections, the horizontal and the sloped, are theoretically different. The great dimension of the vaults in Canterbury cathedral entails a large rib curvature; it is not surprising that Willis maintains that the same template would have been employed for both sections in this case. We will study this example and some other cases where the use of stretched templates is necessary and proved. In the paper, the only Gothic tas-de-charge drawings with stretched templates ,contained in a Spanish treatise from XVII century, will be shown, as well as the connection of this kind of deformation with other planar transformations used in ancient construction. The use of stretching templates has not been studied in specialized literature, with very few exceptions showing traces on disassembled pieces. It is not easy to measure real examples even with current methods of survey. We have gathered data of some cases with a full station, and we have developed practical experiences using templates in the Madrid School of Architecture Stonecutting Workshop; both scale models in plaster and full-size realizations in stone. | |
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Internacional
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Si |
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JCR del ISI
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Título de la revista
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Proceedings of the First Construction History Society Conference |
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ISSN
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978-0-9928751-0-7 |
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Desde la página
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333 |
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342 |
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