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 228
Equilibrium Polygonand the Stresses at any Section of an Arch.—Let ABFig. 240, be an arch of two hinges, with loads P^, P^, and aP^. Each abutment reaction will have a horizontal com-ponent and a vertical component. From ^ hor, comp. = o we know that these horizontal components are equal.… … Fig. 240. and opposite forces //, and //, are not imaginary, as was the case for the rigid frames treatedof in Chapter II. According to the principles of Chap. II, Art. 28, any segment, be, of the equilibrium poly-gon is the line of action of the resultant of all the forces, H^, F,, and P,, to the…
