On the Theory and Calculation of Continuous Bridges

abutments beam c₁ c₂ calculation chord strains cloth coefficient of elasticity compression computation consider continuous bridges continuous girder continuous truss cross section dead load deduced deflection determined diagonal edition elastic limits elastic line engravings equal spans equation exterior forces feet formulae four spans fraction hence horizontal Hypsometry Illustrated inflection points internal forces iron l₁ left hand support length linear unit live load load per linear lower chord M₂ maxima and minima maximum shears maximum strains ment method moment of inertia multipliers neutral axis NOSTRAND'S PUBLICATIONS number of spans P₁ pieces plates port reactions simple girder Simple truss single load single span span ln Steam Engine tension theorem of three three moments tinuous girder tion tons ft triangles U. S. Army U. S. Navy uniform load uniformly distributed upper chord values vertical weight wood cuts wrought iron zero