Wallis, Frank Edwin, 1862-1929 · New York & London. Harper & Bros · leaf 72
A-B-C OF ARCHITECTURE arch, B, one arch for each of the four sides, with diagonal ribs or arches, C, crossing at forty-five degrees from one pier to that on the opposite corner. The slightly curved open spaces between these four outside arches and the diagonal ribs we fill in with stone, each slab… … tion. Now the weight of this cross- vaulting is pushing the binders, or the rib stones, in every direction, and the top of the pier will have a tendency to fall outward. This stress must be eliminated, and first we will build 60
Architecture
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.