Structural mechanics; comprising the strength and resistance of materials and elements of structural design (1905)
Greene, Charles E. (Charles Ezra), 1842-1903, Greene, Albert Emerson. [from old catalog] · New York, J. Wiley & sons; [etc., etc.] · leaf 66
the span when W\ is at C, and x the distance fromthe centre of gravity of the loads to the right point of support BEAMS. 51 B. The shear at C will be P\ = Rx+l. If the train moves tothe left a distance b, the space between W\ and W2, so thatW2 has just reached C, the shear at C will be R(x+b) +1 —… … Fig. 19 increased by moving up W2, iiRb+l + ky Wi, or (as k can often beneglected) if J TX, R Wl Hence move up the next load when the average load per foot on the span is greater than the load on the left divided by the distance between W\ and W2. Rc Rr W Similarly, W3 should be moved to C if…
