axis, assist, in the ratio of their sections and of theirdistance from the neutral axis, to resist tension on the one hand,and compression on the other. These results are deduced fromexperiment; but taking the lattice, or Warren, or any othergirder with open sides, it will be found that the whole… … \Z7 and consequently there is a greatly increased deflection from thesame weight. The lattice bridge was a very imperfect structurewhen first introduced into this country, and it has only attainedto its present condition since the true principles of constructionhave been developed by the…
Building, Iron and steel
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