Iron Truss Bridges for Railroads: Methods of Calculating Strains, with a Comparison of the Most Prominent Truss Bridges, and New Formulas for Bridge Computations; Also, the Economical Angles for Struts and TiesD. Van Nostrand, 1878 - 130 páginas |
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23 Murray 27 Warren St Assumed Weights Bottom Chord braces bridge is covered BRIDGE WEIGHT calculating their weights cast-iron pillars compression members Compressions on Posts Compressions on Top Counter-strut counter-ties Depth of truss determined differential coefficient direct strain entire bridge equation Experimental Breaking Weight experiments extra strains Factor of Safety Fink truss girder greatest Hence Hodgkinson's formula hollow pillars horizontal forces inches iron joints logarithm Maxima Compressions Maxima Direct Compressions Maxima Direct Tensions maximum minimum moving load Murphy-Whipple neutralize NOSTRAND obtain the following Panel length Panel weight parallelogram of forces Pivot Bridges points of support round-end pillars solid pillars Span strains of compression strength struts Tensions on Bottom Top Chord top compressions Top segment transmitted weights TRUSS BRIDGES truss-18 feet vis viva volume w'+w weight of engine
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Página 2 - In the Clerk's Office of the District Conrt of the United States for the Northern District of New York, by WILLI.AV QOULD.