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 333
resent any web stress already found by neglect-ing M, then will any resultant web stress desired be: {w) + w\ the signs of both these quantities being implicit. 2^6 ARCHED RIBS. As the lever arms /,, A, and Wj are scaled from the draw-ing, the rib should be laid down as accurately and to as… … Fig. 5. members, bB, cC, dD, etc., are normal to the centre line ofthe rib, and are designed for tension only. The other webmembers are for compression only Let the ends be supposed free, and take AOP for the trueequilibrium polygon for a given load. For any given loading the stresses in the…
Trusses · Bridges
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