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 91
m. Soc. C. E., July, 1887, from which much has been drawn in thefollowing discussion. 74 MODERN FRAMED STRUCTURES 89. Influence Line for Bending Moment in a Beam, or at any Joint of the Loaded Chord of a Truss.—Let C, Fig. 122, be the point at a fixed distance a from the left end ; and let x = the… … CD = X I. Likewise when P is to the left of C the moment at C is represented by ordinates tothe line AD. Then ADB is the influence line formoment at C. The moment at C due to a load P, , at any pointO, is equal to the ordinate y, under the load, multiplied by the load; for the ordinate y isequal to…
