Merriman, Mansfield, 1848-1925, Jacoby, Henry Sylvester, b. 1857 · New York Wiley · leaf 155
ll determine theuniform upward pull of the hangers on the truss. Let a partial live load extend out from the tower the distancezl where z is any fraction less than \. Let w be this live load per linear unit and w thej t t f t t t M t f t t t uniform upward pull of the iiiiiiiiiiiiiiii iiiiiiiirn \/… … Fig- 75- Art. 52. THE TRUSS WITH CKNTKR IIINCJE. 14! forces on one-half the span about the hinge is also zero.These three conditions determine the three quantities /vj, /v.^,7i, namely, Aj = I ul{2 .cr - 3 .s2), R. = -l wlz^, iu = 2 wc\ (i) The position of the load that gives the greatest value of…
Bridges · Roofs
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