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 113
ne of thelower figure, the ordinates to this line being zero for the loads at joints of the dotted system.Loads at J/and Aare equally divided. The influence line for shear exhibits in a striking manner the effect of concentrated loadsupon the web members when the distance between the loads is an… … Fig. 141. by all means, to be avoided in a double system, and a length chosen which will bring the con-centrations upon different systems. The cumulative effect upon chord members is seen to be very small. In computing stresses in a double-intersection tru.ss, either an equivalent uniform…
