Arthur C. Parola
Published: 2001-02-01
Total Pages: 128
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Scour of streambed material around bridge foundations by floodwaters is the leading cause of catastrophic bridge failure. This study defined streambed stresses around a full-scale bridge pier and compared that info. with streambed-stress data collected in the lab. on small-scale bridge piers. Both the magnitude and dist. of streambed stresses are compared for the full-scale and small-scale bridge piers. 2-dimensional velocity data were collected at 81 vertical locations around a cylindrical pier for 3 separate flow conditions. The velocity data was used to estimate streambed stresses. Contours of the stress data were produced for the full-scale bridge pier. Tables.