Glossary entry

English term or phrase:

offset at spring

French translation:

décalage à la naissance de la voûte

Added to glossary by FX Fraipont (X)
Jan 5, 2012 21:22
12 yrs ago
English term

offset at spring

English to French Tech/Engineering Construction / Civil Engineering Egyptology
No sentence
It should be about the shape of a roof of an underground funerary chamber - subject: egyptology
From an American scholar
Change log

Jan 19, 2012 06:11: FX Fraipont (X) Created KOG entry

Discussion

Tony M Jan 5, 2012:
offset I don't think the actual shape of the arch is what is being referred to here, but rather, the offset at the point where it starts (= springs) from the wall. It is hard to see whether this means that the inner surface of the arch (vault?) is set back (or forward) from the wall, or if not, in which direction the offset might be.

However, the 2 answers you have are merely literal translations of the source term, and hence do not in any way interpret what it means — that, I'm afraid, will be down to yourselves or the readers to figure out. I assume the image you have would probably make it clear just what sort of 'offset' is involved.
F Filippi (asker) Jan 5, 2012:
I am told I am told the roof is vaguely like an arch but flatter. Sorry I did not give more context but we were communicating through skype and he did not tell me everything
F Filippi (asker) Jan 5, 2012:
Thanks, later I'll discuss again with him about this on skype :-)
Tony M Jan 5, 2012:
OK, that helps! Already, knowing that it is a legend on an illustration helps explain what it might mean, and tends to support the suggestion by F-X F.
F Filippi (asker) Jan 5, 2012:
An archeologist friend of mine asked me about this word and put it kudoZ; we've just tried to translate it with my help and his knowledge about egyptian architecture. We are both Italian so it is more difficult for us, even if he has been living in France studying egyptology. It probably is a very specific context. It is on a chart representing various types of roofs. The image of the roofs is very small.
Tony M Jan 5, 2012:
spring is usually the place where an arch starts from; so I would have thought it would be something like 'décalage à...'

I don't see where you are getting your proposal from, unless you have some more context that you are not giving us. How does this term occur (even without an actual sentence, you must have some other surrounding context)!
F Filippi (asker) Jan 5, 2012:
Is it "voûte à redans"?

Proposed translations

+3
8 mins
Selected

décalage à la naissance de la voûte

"Fig. 21. Cross-section of Typical Mayan Temple in Northern
Yucatan: a, upper cornice; h, medial cornice; c, upper zone; d, lower
zone; e, wooden lintels; /, exterior doorway; g, interior doorway;
h, offset at spring of vault; i, cap stone.
http://www.archive.org/stream/ancientcivilizat00spin/ancient...

" spring naissance de voûte n. f."
http://www.granddictionnaire.com/BTML/FRA/R_MotClef/index800...

--------------------------------------------------
Note added at 28 mins (2012-01-05 21:51:23 GMT)
--------------------------------------------------

"The Maya builder did not often essay to construct his arch over
a space more than twelve feet wide, though in the loftier buildings a
much greater span was possible even with the ordinar}^ pitch of the
opposing walls. The average incline appears to be about 65 degrees,
but occasional examples rise to So degrees, while others fall to 60 or
even 55 degrees; the latter pitch would, however, give a weak con-
struction, as the outward thrust would be increased to a dangerous de-
gree. A building 24 feet high with roof 3 feet thick would accommodate
a vault 21 feet high. If the vertical walls below are carried up to half
this height, which is perhaps not far from the average relation of
upper and lower spaces, an incline of 65 degrees in the opposing
walls, allowing 18 inches for the capstone span, will give a vault g
feet in width, or nearly ten feet, measured on the floor level, as there
is usually an offset at the spring of the arch of from 3 to 6 inches on
each side.
"
http://www.ebooksread.com/authors-eng/william-h-holmes/archa...
Peer comment(s):

agree Tony M
7 mins
Thanks!
agree kashew : I hope the link works!
11 hrs
thanks - for the ref too
agree enrico paoletti
21 hrs
merci!
Something went wrong...
4 KudoZ points awarded for this answer. Comment: "Selected automatically based on peer agreement."
8 hrs

décalage au niveau du sommier de la voûte

Je pense que les deux explications (sommier/naissance de la voûte) se valent. On peut aussi parler de « retranche » pour le décalage.

Something went wrong...
+3
7 mins

décalage à la naissance (de la voûte)

Hard to be sure without any more context, but I'd say that would at least translate the term literally.

--------------------------------------------------
Note added at 22 hrs (2012-01-06 19:30:58 GMT)
--------------------------------------------------

It sounds as if this particular 'offset' is some kind of 'corbelling', where the arch starts slightly sticking out from the wall, thus giving a marginally increased span.
Peer comment(s):

agree FX Fraipont (X) : you won :-)
1 min
Thanks, F-X! But you took the time to provide refs. ;-)
agree GILLES MEUNIER
6 hrs
Merci, Gilles !
agree enrico paoletti
21 hrs
Grazie, Enrico!
Something went wrong...
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