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- W602923015 abstract "The 4th Edition of the American Association of State Highway and Transportation Officials (AASHTO) Load and Resistance Factor Design (LRFD) Bridge Design Specifications requires all states to design for a 1,000-year return period earthquake, as opposed to earlier editions' 500-year return period. In response to this requirement, the Colorado Department of Transportation (CDOT) sponsored this study to examine the impact that these more stringent design requirements have upon connection details in mechanically stabilized earth (MSE) walls. The objective of this study was to perform displacement-based dynamic finite element analyses of MSE walls to examine the response of selected internal components when subjected to seismic excitations such as those expected in Colorado. Details that were of particular interest were the upper block connections in modular block walls; the dynamic displacements of the ends of walls; and the relative displacements and motions between the wall facings, soil reinforcement, and soil. The results of this study show that segmental and modular block walls representative of typical current CDOT design practices performed well with respect to both serviceability and strength requirements, even under AASHTO's newly stringent requirement for the consideration of a 1,000-year return period earthquake. The results of these linear elastic finite element studies indicate that seismic design for MSE walls in Colorado does not need to be routinely completed. The MSE walls, which were modeled based upon walls designed using current CDOT MSE wall design procedures, performed very well under all of the seismic loads examined. This means that CDOT's MSE walls do not need to be designed for seismic loads as per the AASHTO recommendation." @default.
- W602923015 created "2016-06-24" @default.
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- W602923015 date "2014-01-01" @default.
- W602923015 modified "2023-09-26" @default.
- W602923015 title "Design of Mechanically Stabilized Earth Wall Connections and End of Walls Subjected to Seismic Loads" @default.
- W602923015 hasPublicationYear "2014" @default.
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