own infig. 99, in order to give rigidity to the construction of thoseparts and to retain the top and bottom in position. Towardsthe ends, f irons take the place of the covering strips on theoutside, and the bottom is widened and connected with the sidesby triangular gussets (fig. 102). To prevent… … Fig. 99. FOR THE CONSTRUCTION OP BRIDGES. 257 bottom to prevent distortion, and to throw the strain of the crossbeams on the centre of the girders, similar plates marked e areinserted. Fig. 100. 9eao«ooea9oa«oaaooaaao»oaaoo ooo 9 Vaoo<i90oaooo9aoad900aQ)oao9dao9oooo»Oi«ojloo oao…
Building, Iron and steel
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