Chapter
Mar 30, 2017
Selection of Soil Stiffnesses for the Load Rating of In-Service Culverts
Authors: S. Mehdi Mousavi [email protected], Priyantha W. Jayawickrama, Ph.D., M.ASCE [email protected], Timothy A. Wood, Ph.D. [email protected], and William D. Lawson, Ph.D., M.ASCE [email protected]Author Affiliations
Publication: Geotechnical Frontiers 2017
Abstract
This paper presents findings from a critical review and an analytical study of soil stiffness values for the load rating of reinforced concrete box culverts. The responses of the soil-culvert system under dead and live loads were examined separately for a production-simplified, two-dimensional, linear elastic, soil-structure interaction model. First, soil-culvert systems were analyzed to determine dead-load-induced moments in the structure. The results were compared with moments obtained from an AASHTO policy-based structural-frame model and a calibrated value of static soil modulus, E = 10 ksi was selected as the optimum. A comprehensive literature review evaluated reasonable soil stiffnesses for live load analysis in culvert load rating. Typical resilient moduli of 12, 24 and 36 ksi for low, medium and high-quality culvert backfill soils were identified for live load predictions in the soil-structure interaction model.
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Published In
Geotechnical Frontiers 2017
Pages: 223 - 232
Copyright
© 2017 American Society of Civil Engineers.
History
Published online: Mar 30, 2017
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Authors
Affiliations
Graduate Research Assistant, Dept. of Civil, Environmental, and Construction Engineering, Texas Tech Univ., Lubbock, TX 79409. E-mail: [email protected]
Associate Professor, Dept. of Civil, Environmental, and Construction Engineering, Texas Tech Univ., Lubbock, TX 79409. E-mail: [email protected]
Assistant Professor, Dept. of Civil and Environmental Engineering, The Citadel, Charleston, SC 29409. E-mail: [email protected]
P.E.
Associate Professor, Dept. of Civil, Environmental, and Construction Engineering, Texas Tech Univ., Lubbock, TX 79409. E-mail: [email protected]
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.