Erection Strength Adequacy of Long Truss Cantilevers

by Jackson L. Durkee, (F.ASCE), Consulting Struct. Engr.; Bethlehem, Pa.; formerly, Chf. Engr., Bridges, Fabricated Steel Construction, Bethlehem Steel Corp., Bethlehem, Pa.,
Spiro S. Thomaides, Consulting Engr.; Technical Services Group, Engrg. Dept., Bethlehem Steel Corp., Bethlehem, Pa.,

Serial Information: Journal of the Structural Division, 1977, Vol. 103, Issue 1, Pg. 225-262

Document Type: Journal Paper


Structural steelwork design specifications commonly limit erection stresses to fixed multiples of design stresses. This type of limitation is not necessarily adequate for controlling the erection of large bridges. This paper develops a logical theory for the erection stressing of monumental truss bridgework, and implements it with a stress-analysis procedure. Historical background material on the evolution of truss bridgework, the development of cantilever erection, and the analysis of secondary stresses is included.

Subject Headings: Stress analysis | Trusses | Cantilevers | Bridge design | Truss bridges | Cantilever bridges | Structural steel | Structural design

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