Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 204
3 8 = 1,125-and the horizontal component of Fg = Fg X cos 38 40 =0.7808 Fg.Hence 0.7808 l\ = 1,125, 1 125 or, Fg = ■ V/io = 1,410 pounds. (This same truss is analyzed graphically later.) 24. Notation for Graphical Analysis of Trusses. The nota*tion described in Art. 3 can be advantageously… … 13oolb3. fcW Fig. 21 a). Then the two letters on opposite sides of any line serve to denote that line and the same large letters are used to denote the force acting in that o line. Thus cd (Fig. 21 rt) refers to themember 12 and CD should be used tostand for the force or stress in thatmember. 25,…
Architecture · Building · Carpentry
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