Journal of the Association of Engineering Societies (1881)
Association of Engineering Societies (U.S.) · New York, [etc.] Board of Managers · leaf 181
ROMAN CONSTRUCTION. 129 •centering, and which in turn supported the body of the arch as it was carried up with horizontal courses exactly as described for the walls. Fig. 4 shows the appearance of such a vault with the facing bricks removed. It is evident that the construction of wooden centering,… … Fig. 8. Fig. 9. state while being built, would be a work of great expense and delay, requiring vast quantities of timber, considerable skilled labor and a great deal of time, all of which the Roman builders sought to avoid using unnecessarily. Some centering indeed was necessary to support the…
Engineering
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