Instrumented pullout tests of unprecedented scope and scale explore the pullout behavior for three steel mechanically stabilized earth reinforcement types: ribbed strips, ladder-like strips, and three-wire bar mat grids. These data quantify the distribution of pullout resistance between longitudinal elements and illustrate the nature of certain reinforcement deformations. Consistent with characteristic inextensible pullout behavior and soil-reinforcement interaction, synthesized strain-gage data illustrate linear stress reduction along the embedment length during pullout for all three reinforcement styles. For ladder-like strips, the axial force divides evenly between the two longitudinal elements. For the three-wire bar mat grid, the center bar carries approximately 40% of the axial force, whereas each outside bar carries approximately 30% of the axial force. Observed pullout-induced deformation in the transverse elements of three-wire bar mat grids having widely spaced longitudinal bars is conceptually different from extensible behavior and suggests the need for refinement in current pullout resistance formulations.


    Zugriff

    Download

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Pullout Behavior of Steel Mechanically Stabilized Earth Reinforcements


    Weitere Titelangaben:

    Transportation Research Record: Journal of the Transportation Research Board


    Beteiligte:


    Erscheinungsdatum :

    05.05.2018




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Pullout Resistance Factors for Inextensible Mechanically Stabilized Earth Reinforcements in Sandy Backfill

    Lawson, William D. / Jayawickrama, Priyantha W. / Wood, Timothy A. et al. | Transportation Research Record | 2013



    Effect of Skewing and Splaying on Pullout Capacity of Steel Reinforcements in Mechanically Stabilized Earth Structures

    Jayawickrama, Priyantha W. / Lawson, William D. / Wood, Timothy A. et al. | Transportation Research Record | 2012


    Reinforcement Pullout Capacity in Mechanically Stabilized Earth Walls with Marginal-Quality Soils

    Hatami, Kianoosh / Granados, Jaime E. / Esmaili, Danial et al. | Transportation Research Record | 2013