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Response modelling of pavement subjected to dynamic surface loading based on stress-based multi-layered plate theory

Tu, Wei
http://rave.ohiolink.edu/etdc/view?acc_num=osu1188066023

Abstract Details

2007, Doctor of Philosophy, Ohio State University, Civil Engineering.
According to the Federal Highway Administration (FHWA Highway Statistics, 2004), almost $900 billion was spent on the maintenance and reconstruction of the U.S. highway system during the ten year period from 1995 to 2004. It is clear that improving the pavement analysis and design methods could result in annual savings in the millions and possibly billions of dollars. The response models based on multi-layer elastic theory and displacement-based finite element methods are currently the most widely used and both are adopted as the structural response models in the recently released Mechanistic Empirical Pavement Design Guide (MEPDG). These models are capable of predicting global responses such as surface deflections but are not able to accurately predict the transverse stress distribution which is imperative to model the realistic behavior of in-service pavement systems and prevent premature failure caused by pavement layer debonding. A stress-based model developed at Ohio State for composite laminates has shown the capability of accurately predicting the dynamic stresses at layer boundaries while retaining the ability to determine displacement behavior. In this study, the stress-based multi-layer plate theory was extended to layered pavement systems as an alternative to existing pavement response models for the analysis and design of pavements. The proposed model was verified by comparing its solutions to existing analytical, numerical solutions, and experimental results. Good agreement was obtained in the predicted surface deflection response from existing analytical, numerical solutions and the stress-based model. It was shown that the current stress-based model can overcome the limitation of displacement-based method and predicted more accurate and realistic transverse stress at the pavement layer interfaces. Overall, a reasonably close prediction was obtained between calculated and measured responses from the two full-scale pavement experimental studies. Moreover, a sensitivity study was carried out in order to obtain a better understanding of the different factors that affect the interface transverse stresses at the interface between surface layer and base layer. Finally, the stress-based model was used to analyze thin concrete overlay rehabilitation of rigid and flexible pavements.
William Wolfe (Advisor)
229 p.
Engineering, Civil

Recommended Citations

Citations

  • Tu, W. (2007). Response modelling of pavement subjected to dynamic surface loading based on stress-based multi-layered plate theory [Doctoral dissertation, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1188066023

    APA Style (7th edition)

  • Tu, Wei. Response modelling of pavement subjected to dynamic surface loading based on stress-based multi-layered plate theory. 2007. Ohio State University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1188066023.

    MLA Style (8th edition)

  • Tu, Wei. "Response modelling of pavement subjected to dynamic surface loading based on stress-based multi-layered plate theory." Doctoral dissertation, Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=osu1188066023

    Chicago Manual of Style (17th edition)

osu1188066023
4,445
© 2007, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.