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 534
quite invalidate the formula, V- . . . /*=——, in which/* is the pressure in pounds per square foot, and Fthe wind velocity in miles per hour, given inArt. 80, page 370. Mr. Crosbys experiments with a surfaceone square foot in area show that with velocities varyingfrom 30 to 130 miles per hour, very… … PI. I Fig.i B c . J) jP -^ . i . . G^ ff w h\- /\ A ■:• /-V^ / \ --A V \ /^T ?y \ --/ ^ / ) ^ 7^ --\a^ :3 yyi a- ? - j-^ ^. V ,.-/> --- ir :>R jr<i^ ^^_^^
Trusses · Bridges
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