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 65
shearsfrom H to B, none being possible from A \.o H. Between H and G both kinds of shear arepossible. The actual values of the shears are best found by the use of eq. (10) with eqs. (11)and (12). In practice we need find only the maximum positive shears, since the negativeshears are equal and… … (13) the equation of the straight line CB, Fig. 79. The ordi-nate AC — /*, . In like manner the maximum negativeshear occurs with the load just to the left of the pointand is (■4) Fk;. 79. This negative shear is represented by the line AD.For two equal loads, and P^, the maximum positive shear is…