A treatise on architecture and building construction (1899)
International Correspondence Schools · Scranton, The Colliery engineer co. · leaf 265
flanges f inch thick, the webs and central horizontal partitionbeing i inch thick. A section of the block is shown at a^ anend view at b^ and a tie-rod at c. The lower part of the Ibeam is protected by a plate resting on the beveled loweredge of the skewbacks, as shown at d. 163. Combination… … Fig. 79. been tested to failure, it has almost invariably been theseblocks that broke first; hence, it is very necessary to havethem extra strong, so as to equalize the strength of the dif-ferent parts forming the arch. Fig. 79 represents a form ofcombination construction; the inside blocks a are…
Architecture · Building
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