Behavior of Prestressed Concrete Beams Under Simulated Moving Loads


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Title: Behavior of Prestressed Concrete Beams Under Simulated Moving Loads

Author(s): James G. MacGregor, Chester P. Siess, and Mete A.Sozen-

Publication: Journal Proceedings

Volume: 63

Issue: 8

Appears on pages(s): 835-842

Keywords: beams, bridges, cracking, dynamic load, prestressed beams, prestressed concrete, research, shear strength, web reinforcement.

Date: 8/1/1966

Seven simply supported pestressed concrete beams were tested under a moving load simulated by the application of a single concentrated load successively at 11 load locations uniformly spaced along the span. The magnitude of the moving load was increased after each traverse of the span. The development of flexural and inclined cracking was similar to that in beams tested under stationary loads and empirical expressions presented in an earlier paper to predict inclined cracking and ultimate loads for prestressed beams were found to apply to the case of moving loads.