Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 215
in those membersare compressive and tensile respectively. Measuring, we find thatAF and FE equal 0,150 and 5,100 pounds respectively. Member. Stress.. af ■6.150 fe+5,100 tg fg gh 4,100 1,875 +2,720 173 40 STATICS We may next draw the polygon for joint (G) or (2) since thereare but two unknown… … Sca^le:in.- 2ooolto&. by of. Since the unknown forcesmust be marked FG and GB, drawfrom F a line parallel toy)/, fromB a line parallel to l(j., and marktheir intersection G. Then the poly-gon for the joint is FABGF, andsince AB acts down (see the polygon) ^BG and GF act down and up…
Architecture · Building · Carpentry
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