Building construction and superintendence, by F.E. Kidder ... (1896)
Kidder, Frank E. (Frank Eugene), 1859-1905 · New York, W.T. Comstock · leaf 288
should be experienced with the stress diagram untilwe come to joint 4, where there are three unknown forces. Thereare two or three ways of getting over this difficulty, the simplestone, in the opinion of the author, being to assume, for the momentthat a strut extending from joint 5 to joint 6 is… … ress D/agraf already drawn the lines gf and fb, and we measure down from b,a distance of 1,000 lbs., which gives the point c. Then from c andg draw lines parallel respectively to CI and HG, intersecting at i.Next, complete the stress polygon for joint 5 on the assumption thatthe strut IK is placed,…
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