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  • 1 Metropolitan State University of Denver Department of Engineering Technology P O Box 3362 Denver CO 80217-3362 USA
  • 2 University of Sassari Piazza Duomo 6 Alghero 07041 Italy
  • 3 Colorado State University Department of Civil and Env. Engineering, School of Engineering P O Box 1372 Fort Collins CO 80523-1372 USA
  • 4 University of Pécs Department of System and Software Technology, Pollack Mihály Faculty of Engineering and Information Technology Rókus u. 2 H-7624 Pécs Hungary
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In a wood-concrete composite structural member the wood layer overlapped by the concrete layer are interconnected to prevent the relative slip. In this research notched shear-key interlayer connections were used. A problem with using these novel composite members in bridges is that the fatigue behavior of the composite member is not well known. This paper presents an S-N curve for fatigue verification of notched wood-concrete connections based on static and low-to-high-cycle repeated loading tests on fourteen composite beam specimens. The points on the S-N curve were determined for three levels of the maximum load as a function of the average static failure load.

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