Kidder, Frank E. (Frank Eugene), 1859-1905 · New York, Comstock · leaf 308
ollowing terms also are often used for thedifferent parts of arches and vaults: The Soffit.—The concave surface of the arch. The Back.—The convex surface of the arch. The Spandrel filling.—The filling in the triangular spaces abovethe voussoirs and between the springers and the crown. A… … Fig. 134.—Cut-stone Arch and \ault with Xames of Xarious Parts of the Arch. They may be built in a great variety of styles, and with either circu-lar, elliptical or pointed soffits. The method of calculating the sta-bility of a stone arch is the same as for a brick arch; but since astone arch is…
Building · Carpentry · Masonry
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