Editing Arch (section)

==== False arches ====
The corbel (also ''corbelled'') arch, made of two [[corbel]]s meeting in the middle of the span, is a true arch in a sense of being able to carry a load, but it is false in a structural sense, as its components are subject to bending stress. The typical profile is not curved, but has triangular shape. Invented prior to the semicircular arch, the corbel arch was used already in the [[Ancient Egyptian architecture|Egyptian]] and [[Mycenaean architecture|Mycenaean]] architecture in the [[3rd millennium BC|3rd]] and [[2nd millennium BC]].{{sfn | Woodman | Bloom | 2003 | loc=Corbelled}}

Like a corbel arch, the [[triangular arch]] is not a true arch in a structural sense. Its intrados is formed by two slabs leaning against each other.{{sfn | Woodman | Bloom | 2003 | loc=Triangular}} Brick builders would call triangular any arch with straight inclined sides.<ref>{{cite book |last1=Brick Industry Association] |series=Technical Notes on Brick Construction |title=Brick Masonry Arches: Introduction |date=January 1995 |publisher=Brick Industry Association |page=2 |url=https://faculty-legacy.arch.tamu.edu/anichols/index_files/courses/arch631/NS6-1brickarch.pdf}}</ref> The design was common in [[Anglo-Saxon England]] until the late 11th century ([[St Mary Goslany]]).{{sfn | Woodman | Bloom | 2003 | loc=Triangular}} [[Maya civilization|Mayan]] corbel arches are sometimes called triangular due to their shape.{{sfn|Sturgis|Davis|2013|p=121|loc=Triangular Arch}}
<gallery>
File:Cucinone di palazzo pitti, cappa con piattabanda attr. al dis. del buontalenti 02.jpg|Flat arch in the kitchen of [[Pitti Palace]]
File:Refugi pedra Tales.jpg|Triangular arch
File:White Castle, arrow slit.jpg|A triangular arch built using masonry
File:Kabah Arch 2002.12.29 27.jpg|Mayan corbelled arch
</gallery>