Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 206
(Fig. 21a) refers to themember 12 and CD should be used tostand for the force or stress in thatmember. 25. Polygon for a Joint. In draw-ing the polygon for all the forces at ajoint, it is advantageous to represent theforces in the order in w^hich they occurabout the joint. Evidently there arealways… … Scdwle:lin.= 6ooolbs. Fig. 21. 167 34 STATICS A force polygon for the forces at a joint in which the forces arerepresented in either order in which they occur about the Joint iscalled a polygon for the joint, and it will be called a clockwise orcounter-clockwise polygon according as the order…
Architecture · Building
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