Editing Diaphragm arch

[[File:Diaphragm arch, South East Tower, Beaumaris Castle.JPG|thumb|Diaphragm arch, South East Tower, [[Beaumaris Castle]]]]
[[File:TournusTonnengewölbe.jpg|thumb|Diaphragm arches in [[Romanesque architecture]] ([[St Philibert, Tournus]])]]
A '''diaphragm arch''' is a [[Transverse arch|transverse]]  wall-bearing [[arch]]  forming a partial wall dividing a [[Vault (architecture)|vault]] or a [[ceiling]] into compartments<ref>Technical Terms and the Understanding of English Medieval Architecture" E. C. Fernie, ''Architectural History'' Vol. 44, (2001), pp. 13-21 [https://www.jstor.org/pss/1568729]</ref> while also bracing the walls.{{sfn|Hourihane|2012|p=130|loc=Diaphragm}}

When used under a wooden roof (with solid [[spandrel]]s) it has the advantage of providing a partial [[firebreak]].<ref>[https://books.google.com/books?id=HyjqAAAAMAAJ&q=%22diaphragm+arch%22+history  Architecture in Britain: the Middle Ages, Volume 12, p. 210]</ref>   It was first used in Roman Syria, during the 2nd century AD.<ref>[https://books.google.com/books?id=DHVMAAAAYAAJ&q=%22diaphragm+arch%22+origin ''Arte medievale'', 1987]</ref> The diaphragm arch is present in [[Islamic architecture|Islamic]], [[Carolingian architecture|Carolingian]], [[Ottonian architecture|Ottonian]] and [[Romanesque architecture|Romanesque]] architecture.{{sfn|Hourihane|2012|p=130|loc=Diaphragm}}

{{Commons category|Diaphragm arches}}

==See also==
* [[Islamic architecture]]
* [[Romanesque architecture]]
* [[Kucheh]]

==References==
{{Reflist}}

==Sources==
* {{cite book|last=Hourihane|first=C.|title=The Grove Encyclopedia of Medieval Art and Architecture|publisher=Oxford University Press|volume=1|year=2012|isbn=978-0-19-539536-5|chapter-url=https://books.google.com/books?id=FtlMAgAAQBAJ&pg=PA131|access-date=2024-12-24|chapter=Arch|pages=129-134}}

[[Category:Arches and vaults]]


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