Martin, Louis Adolphe, 1880- · New York, J.Wiley & Sons, Inc.: [etc. etc.] · leaf 59
nts the area of the S.F. x=0 diagrams as shown in Fig. 22, but also equals the increaseof the ordinate of the B.M. diagram at x = a over itsvalue at x = 0. As the B.M. at x = o is zero (the end Qx dx in this case is the ordi-1=0nate of the B.M. diagram at x = a. Exercise 38. Find the maximum B.M.… … Fig. 23 the moment is sought, must be used. Thus in Fig. 23the B.M. at A would be found as follows: M. Qx dx = I (200) dx = 800 lbs.-ft. J x = 0 STRESSES IN BEAMS 39 represented by the shaded area of the shear diagram.At C we have x = 4 px = 8 px = 12 Mc= j (200) dx+ f (100) dx+ J ( — ioo)dx *i=0…
Mechanics
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