Chapter
Mar 30, 2017
Modeling Factors Influencing Culvert Load Ratings: A Parametric Analysis
Authors: Timothy A. Wood, Ph.D. [email protected], James G. Surles, Ph.D. [email protected], S. Mehdi Mousavi [email protected], Priyantha W. Jayawickrama, Ph.D., M.ASCE [email protected], Amir Hossein Javid [email protected], Hoyoung Seo, Ph.D., M.ASCE [email protected], and William D. Lawson, Ph.D., M.ASCE [email protected]Author Affiliations
Publication: Geotechnical Frontiers 2017
Abstract
This parametric analysis illustrates the relative influence of six parameters on reinforced concrete box culvert (RCBC) load rating using a production-simplified soil-structure interaction demand model. Frequently, field inspections show in-service RCBCs to perform adequately, but load rating per AASHTO guidance requires load posting. Parameters such as (1) the culvert design, (2) cover soil depth, and (3) soil stiffness are driven by the in-service culvert condition. The test matrix consists of three RCBC designs evaluated under three cover soil depths embedded in three soil stiffnesses. Load raters may implement less conservative, more accurate assumptions for (4) pavement stiffness, (5) effective moment of inertia, and (6) the top interior wall fixity, as appropriate. Cover soil depth and design showed significant impact on the culvert load rating, but are defined by the culvert condition. Less conservative assumptions for the effective moment of inertia had the greatest impact on the load rating, followed by the inclusion of pavement stiffness.
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© 2017 American Society of Civil Engineers.
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Published online: Mar 30, 2017
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Assistant Professor, Dept. of Civil and Environmental Engineering, The Citadel, 171 Moultrie St., Charleston, SC 29409. E-mail: [email protected]
Professor, Dept. of Mathematics and Statistics, Texas Tech Univ., P.O. Box 41023, Lubbock, TX 79409. E-mail: [email protected]
Doctoral Student, Dept. of Civil, Environmental, and Construction Engineering, Texas Tech Univ., P.O. Box 41023, Lubbock, TX 79409. E-mail: [email protected]
Associate Professor, Dept. of Civil, Environmental, and Construction Engineering, P.O. Box 41023, Lubbock, TX 79409. E-mail: [email protected]
Doctoral Student, Dept. of Civil, Environmental, and Construction Engineering, Texas Tech Univ., P.O. Box 41023, Lubbock, TX 79409. E-mail: [email protected]
P.E.
Assistant Professor, Dept. of Civil, Environmental, and Construction Engineering, P.O. Box 41023, Lubbock, TX 79409. E-mail: [email protected]
P.E.
Associate Professor, Dept. of Civil, Environmental, and Construction Engineering, P.O. Box 41023, Lubbock, TX 79409. E-mail: [email protected]
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