A course on the stresses in bridge and roof trusses, arched ribs and suspension bridges (1904)
Burr, William H. (William Hubert), 1861-1934 · New York : Wiley · leaf 173
e resultant stress in any member will be found by com-bining the results given in Figs. 2 and 3. \--^^-~\\ ^>^ .C, ^ ^ f < f H-~. x^-+ r Fig. 3. Fig. 3 does not show K equal to ///, as it is not a scalediagram. The members FH and K are in tension, while D and E arein compression. Wy Wx>… … Fig. I. GENERAL CONSIDER A TIONS. 123 taken as acting on RW]^\ the reaction R, therefore, is \ (3 W +\\\ + W.^ and W> \\\> W^. The rafters are each dividedinto three equal parts, and F and D are vertical. IV2 is thefixed panel weight of the roof, and W^ = (IV + W.2) -i- 2.
Trusses · Bridges
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