Title:
Punching-Shear Behavior of Bridge Decks under
Fatigue Loading
Author(s):
John C. Graddy, Jubum Kim, James H. Whitt, Ned H. Burns, and Richard E. Klingner
Publication:
Structural Journal
Volume:
99
Issue:
3
Appears on pages(s):
257-266
Keywords:
fatigue; punching shear; shear; slab.
DOI:
10.14359/11909
Date:
5/1/2002
Abstract:
The punching-shear behavior of bridge decks under fatigue loading, including the effects of arching action, is studied experimentally and analytically. The experimental investigation includes static and pulsating fatigue tests on full-scale, cast-in-place and precast, prestressed panel specimens. Failure modes, loads, and test specimen behaviors observed during the experimental tests are discussed and compared with analytical predictions. Finite-element models developed for a full-scale bridge and for test specimens are discussed, and the results obtained from them are compared with test results. A method is proposed that includes the effects of membrane compression in calculations of punching-shear capacity, and that gives reasonable agreement with test results. S-N curves are proposed for pulsating fatigue design and assessment.