A treatise on architecture and building construction (1899)
International Correspondence Schools · Scranton, The Colliery engineer co. · leaf 68
Fig. 41. Fig. 49. When an area wall is 10 feet long, bracing arches canusually be thrown from one wall to another, as shown inFig. 42. Here a shows the area wall; b, the concretebottom of the area itself; r, the bracing arch, shown in thiscase as a segmental arch made of three courses of brick;…
Architecture · Building
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