The apprentice, or First book for mechanics, machinists, and engineers (1860)
Byrne, Oliver · New York, P. J. Cozans · leaf 167
ence existing in the combinations of the various plansof trusses, of the same general outline, it may be statedthat the material composing any bridge trussj whether ofwood or iron, or of both, is subjected either to tension orthru^t^ and it is upon the proper application of these ele-ments,… … Figure 3 is the truss of the Burr Bridge ; in this theupper chord and braces are acted upon by thrust, and thelower chord and posts by tension. Figure 4 is the Howe Truss, without the counter braces ; PRACTICAL MECHANICS. 163 in this also, the upper chord and braces are subjected tothrust, and the…
Mechanics, Applied
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