Fatigue Strength of Hybrid Plate Girders

by A. Anthony Toprac, (M.ASCE), Professor of Civil Engineer; The Univ. of Texas at Austin, Austin, TX,
Murugesam Natarajan, (A.M.ASCE), Engr.; Bridge Div., Texas Highway Dept., Austin TX,


Serial Information: Journal of the Structural Division, 1971, Vol. 97, Issue 4, Pg. 1203-1225


Document Type: Journal Paper

Discussion: Smith Kenneth N. (See full record)

Abstract: The results of 63 hybrid girders tested at The University of Texas, Austin, are presented. Six girders had A441 steel flanges and the others had A514 steel flanges. All girders had A36 steel webs. Forty-three girders were tested in bending, three in shear, and seventeen in combined bending and shear. Web slenderness ratio and the stress range were the important variables investigated in this test program. Based on the test results of this program and those of homogeneous carbon steel plate girders previously investigated, conclusions are drawn on web slenderness ratio and on initiation of fatigue cracks.

Subject Headings: Plate girders | Steel | Webs (structure) | Hybrid methods | Flanges | Shear tests | Cross sections

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