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The Pennsylvania (Petit) truss is a variation on the Pratt truss. [26] The Pratt truss includes braced diagonal members in all panels; the Pennsylvania truss adds to this design half-length struts or ties in the top, bottom, or both parts of the panels. It is named after the Pennsylvania Railroad, which pioneered this design.
Truss bridge for a single-track railway, converted to pedestrian use and pipeline support. In this example the truss is a group of triangular units supporting the bridge. Typical detail of a steel truss, which is considered as a revolute joint Historical detail of a steel truss with an actual revolute joint
Pratt truss bridges in the United States (281 P) B. Baltimore truss bridges (1 C, 14 P) Pages in category "Pratt truss bridges" The following 22 pages are in this ...
The 221-foot-11-inch (67.64 m) bridge has two spans, both Pratt trusses; the longer span is a Pratt through truss, while the shorter is a Pratt pony truss. The use of both through and pony trusses in the same bridge was uncommon in Wyoming, and the bridge is the only surviving example of a Pratt truss bridge in this style. [2]
Norfolk Southern Six Mile Bridge No. 58, also known as Six Mile Bridge, is a historic Pratt truss railroad bridge located near Lynchburg in Amherst County and Campbell County, Virginia. The bridge was originally constructed around 1853.
The Strimple's Mill Road Bridge over Lockatong Creek is a historic Pratt thru truss bridge located in Delaware Township of Hunterdon County, New Jersey, United States. [3] Built in 1897 by the Wrought Iron Bridge Company of Canton, Ohio, it was added to the National Register of Historic Places on October 4, 2016, for its significance in ...
The Whipple truss was developed by Squire (CE) Whipple as a stronger version of the Pratt truss that was designed by Thomas and Caleb Pratt in 1844. The basic identifying features of the Pratt truss are the diagonal web members which form a V-shape. The centre section commonly has crossing diagonal members.