The theory and practice of modern framed structures : designed for the use of schools, and for engineers in professional practice (1897)
Johnson, J. B. (John Butler), 1850-1902, Bryan, C. W. (Charles Walter), 1863-1927, Turneaure, Frederick Eugene, 1886- · New York : J. Wiley & Sons · leaf 231
king B coincide with B, and the tangent atB coincide with the tangent at B. This new positionis represented by the dotted outline AB. The ab-solute movement now shown is the relative movementFig. 247. required. The tangent at A has moved through an angle A^), making now an angle with the tangent at… … ARCH BRIDGES. 207 {d) Change of Inclination of Tangent, = J0.—Let CEFD, Fig. 248, be an elementof the beam of length ds, whose end faces CE and DF areat right angles to the axis, and whose end tangents make anangle with each other originally equal to dd. Let d<l> be thechange in angle between…
