The theory and practice of modern framed structures : designed for the use of schools, and for engineers in professional practice (1897)
Johnson, J. B. (John Butler), 1850-1902, Bryan, C. W. (Charles Walter), 1863-1927, Turneaure, Frederick Eugene, 1886- · New York : J. Wiley & Sons · leaf 43
known we take this forcenext in order; B is its intersection with AB. The amount ofR being unknown, we cannot at once draw the next ray in theforce polygon and so get the direction of the next segment ofthe equilibrium polygon. We know, however, that this nextsegment must coincide with the last… … Fig. 45. polygon, and R and R are respectively equal to 2-3 and 3C?; BE is the line of action of R. APPLICATION OF THE LAV/S OF EQUILIBRIUM. 27
