either to a beam or to a single intersec- I = length of span, a= distance from tion truss, with vertical members at each wn to ffln+i. apex. After the shifting, which moves wn from In the figure, B, to a point x to left of B, the left reac- P = (wl + io 9 4- . . . + wn ) = sum of live tion V is… … The downward moment of P is increased ] will eventually become minus. The by Fx. instant this occurs, the nearest load on the left of B is the one that must rest at hf-4} B to give the maximum moment at that M'=M + (i) point. The [ ] changes sign when First. So long as the [] is 4- for x=a, d the…
Engineering
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten07unit-397-265.webp)
