Sensitivity Analysis of Bridge Equationsby Jeffrey S. Glenn, (M.ASCE), Whitman & Howard, Inc, Concord, United States,
Abstract: Computation of riverbed scour at the 482,000-plus bridges over water in the United States of America requires a significant level of hydraulic engineering effort. To do cost-effective, quality work, the engineer needs to know the sensitivity of each variable in the scour equations. The results of an informal sensitivity analysis of the scour equations contained in the Second Edition of the Federal Highway Administration's Hydraulic Engineering Circular No. 18 are presented. The contraction, abutment and pier scour equations were analyzed to determine the sensitivity of the variables in the equations. A discussion of the results is also presented.
Subject Headings: Sensitivity analysis | Scour | Bridge tests | Hydraulic models | Highway bridges | Highway engineering | Federal government | North America | United States
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