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 67
ts of the unloaded chord, when these points are not in*:he same verticals as those of the loaded chord, are best found by proportion, from themoments at the two adjacent joints of the loaded chord. Equation (i6) may be derived directly as follows:Let AB, Fig. 82, be any truss having equal panels… … -nd—l-FiG. 82. To the left of C are m — \ loads md whose average lever-arm about C = —. The bending moment at C is therefore M = R,X md — (m — l)pd X ^ = ^^^^ md — ^—(m — \)m = ^—(mm\ Q. E. Do 2 2 2 2 69. Web Stresses, Parallel Chords.—If AB, Fig. 83, be a truss with parallel chords,the stress in…
