Rudiments of the art of building : in five sections : general principles of construction, materials used in building, strength of materials, use of materials, working drawings, specifications and estimates (1871)
26 RUDIMENTS OV THll arches have a tendency to rise at the crown ; and, to prevent this, the cross springers of tlie ribbed vaults of the middle Fig. 22. … ages were often made of a semicircular profile, their flat- ness at the crown being concealed by the bosses at their intersections. 51. If the experiment be tried of equilibrating, in the manner above described, a suspended semicircular or semi- elliptical arch, it will be found to be practically…
Building · Building materials · Engineering
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
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