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 23
d not follow the practice of Palladio,and so fine an example of the use of the truss element is not found again for nearly threehundred years. Fig. 4 represents one span, 170 feet long, of a bridge over the Rhine at Schaffhausen,built in 1758 by Ulric Grubenmann, a carpenter by trade but really a… … Fig. 4. Fig. 5 represents the Permanent Bridge over the Schuylkill River at Philadelphia,built by Mr. Timothy Palmer of Newburyport, Mass., in 1804.* The middle span was 195 feetand the side spans were 150 feet each. It was covered in and continued in service till 1850,when it was replaced by a…