A course on the stresses in bridge and roof trusses, arched ribs and suspension bridges (1904)
Burr, William H. (William Hubert), 1861-1934 · New York : Wiley · leaf 269
or the ends can never leavetheir seats or supports. By a proper device, then, the ends should be pressed up-ward by forces at least equal to the negative reactions deter-mined for latched ends. In order to provide for any contingency, however, whichmay arise, the upward force should somewhat exceed… … J) H \F G- ENDS LIFTED. 2\y. are the same as those taken in the two preceding cases; theloading is also the same. The following are the data to be used : AC=2(Ah+ -—)= 144 feet. Uniform depth of truss = 16 Panel length =13 hh = 14 Uniform fixed upper chord panel load = IV = 5.00 tons. lower = W=…
Trusses · Bridges
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