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 35
he stress \n AC v^e may pass to the joint C. The unknowns are thestresses in CD and CB. In Fig. 25 {c) the joint is shown free with all forces put in; 5,will point towards C, AC being now known to be in compression. Assume either directionfor 5, and S,. As before, 2 vert. comp. = o gives cos B ^ —…