A treatise on architecture and building construction (1899)
International Correspondence Schools · Scranton, The Colliery engineer co. · leaf 271
properly shaped skewbacks. This kind of arch makesvery strong floors, and is much cheaper than flat tile arches.Segmental arches have been built in spans up to 20 feet, thussaving considerable weight in the columns and beams, as insuch cases many of the latter may be omitted which wouldotherwise be… … Fig. 83. of such arches should be about one-oighth of the span, if pos-sible, and, in any case, not less than one-twelfth. Fig. 83shows a common segmental tile arch, a indicating the skew-backs, b the hollow inside blocks, and c the tie-rod taking upthe thrust of the arch. This rod should be placed…
Architecture · Building
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