Mar 19, 2018 12:32
6 yrs ago
1 viewer *
Italian term

Arco a terzo acuto

Italian to English Tech/Engineering Architecture Rilievo strutturale
"Precisamente è stato rilevato che il costolone delle volte quadrate è un arco a terzo acuto, mentre quello delle volte rettangolari è un arco a quinto acuto.
L’arco a terzo acuto usato per i costoloni delle volte a base quadrata, è lo stesso che è poi stato utilizzato da Brunelleschi per la calotta interna della cupola di S. Maria del Fiore, cosi come l’arco a quinto acuto usato nei costoloni delle volte a base rettangolare, è stato utilizzato per la calotta esterna."
Proposed translations (English)
4 +1 tiers-point arch

Discussion

Howard Sugar Mar 19, 2018:
Another earlier text states "They are also called imperfo and diminished arches. A R ches of the third andfourth point, or Gothic arches; or, as the Italians call them, di terzo and quarto acuto, because they always meet in an acute angle at top. These consist of two excentric circular arches, mecting in an angle above, and are drawn foom the division of
Howard Sugar Mar 19, 2018:
The old architectural books (1780-182" explains the expression more or less like this. "Imperfect or diminished arches do not form an exact semicircle. They are, moreover, distinguished into—Scheme or Skene arches, which are flat arches.—Ipointed arches, otherwise called Gothic, or by the Italians arches di terzo et di quarto acuto, i.e. of the third and fourth point; because they consist of two arcs of a circle ...

Proposed translations

+1
27 mins
Selected

tiers-point arch

https://books.google.it/books?id=qpyECwAAQBAJ&pg=PA42&lpg=PA...

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Note added at 35 min (2018-03-19 13:07:19 GMT)
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https://archnet.org/sites/2372
Peer comment(s):

agree Mary Carroll Richer LaFlèche
21 hrs
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4 KudoZ points awarded for this answer. Comment: "Useful"
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