Merriman, Mansfield, 1848-1925, Jacoby, Henry Sylvester, b. 1857 · New York Wiley · leaf 224
s of tension and compression, andthat the ordinate .S, is laid off so as to be added algebraicallyto Si. The construction may be tested by observing the follow- Art. 74. INFLUENCK LINES. 209 ing checks: The Hnes which are drawn to the extremities ofthe ordinates S,. and S,. must intersect each… … Fig. 113. the points of division ? and e found in Art. 6^,. CompareFig. 113 with Figs. 89 and 90. The zero points d\ and f/- inFig. 113 lie in the same verticals as the points of division in thefourth and fifth panels found by means of equilibrium polygons(triangles) as shown in Fig. 100, Art. 68.…
Bridges · Roofs
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