Discontinuous Double-shell Domes through Islamic eras in the Middle East and Central Asia: History, Morphology, Typologies, Geometry, and Construction |
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Authors: | Maryam Ashkan Yahaya Ahmad |
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Affiliation: | 1. Department of Architecture, Faculty of Built Environment, University of Malaya, Lembah Pantai, 50603, Kuala Lumpur, Malaysia
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Abstract: | This paper presents a developed geometric approach for deriving the typologies and geometries of discontinuous double-shell
domes in Islamic architecture. Common geometric attributes are created using a corpus of twenty one domes that were built
in the Middle East and Central Asia, beginning from the early through to the late Islamic periods. An outline of the origin
and development of the discontinuous double-shell domes and their morphological features are addressed. Using the al-Kashi
geometrical essences, a four-centered profile as an initial shape is constructed based on new geometric parameters to deduce
the geometric commonalities of the two aspects of formal language (typologies and geometries) of such domes. Common geometric
prototypes for typical profiles shared by the study cases are generated and formulated according to a proposed system. The
theoretical frame work for the formal language of discontinuous double-shell dome architecture is structured to indicate a
moderate development of this sort of Islamic domes and highlight the specific geometric relationship between the Islamic domical
configurations and practical mathematic rules for many decades. It can also be established a basic approach for considering
the geometric compositional designs and the typological derivations of the other eastern domes. |
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