General Theory of Bridge Construction: Containing Demonstrations of the Principles of the Art and Their Application to Practice; Furnishing the Means of Calculating the Strains Upon the Chords, Ties, Braces, Counter-braces, and Other Parts of a Bridge Or Frame of Any Description. With Practical Illustrations |
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abutments acting angle applied arch arch-braces Bill of Materials bolts bottom chord bridge calculation cast-iron centre of gravity compression consequently construction cross-section cubic inches cubic parabola curve deflection determined diameter dimensions distance effect elastic limits elasticity ends equal equation equilibrium estimate extension feet B. M. feet long fibres flexure floor beams foot lineal ƒ rē horizontal force horizontal strain interval joints lateral braces lattice lattice bridges length leverage line of direction lineal feet lower chord malleable iron material middle nearly neutral axis one-half panel Pennsylvania Railroad perpendicular piers plates portion posts pounds per square pressure per square principle produce proportion railroad rectangle represent resistance result roadway side skew-back span square inch stiffness strain per square strength structure sufficient supposed suspension rods Susquehanna timbers tion top chord truss upper chord variable load vertical force white pine whole weight