Akademik Veri Yönetim Sistemi
Transportation Research Record, 2024 (SCI-Expanded)
This paper presents a comparison between the two-dimensional finite element and experimental results of shaking table tests on six one-third-scale polymeric strap or polymeric geostrip reinforced walls performed under seismic excitation at given peak ground accelerations (Formula presented.). The effects of initial tangent stiffness or the stiffness of polymeric strap material (Formula presented.) and the slope angle of the cohesionless backfill material (Formula presented.) on the maximum relative displacement, (Formula presented.), of the reinforced earth wall, the values of the horizontal incremental dynamic earth pressure (Formula presented.) with distributions, acceleration responses, horizontal dynamic active earth pressure coefficient (Formula presented.) and maximum dynamic tensile forces (Formula presented.) were assessed in this study. Moreover, the vertical dynamic active earth pressure coefficients (Formula presented.) and the angles of the resulting dynamic active force with horizontal (Formula presented.) were predicted from the numerical analysis. Closely matched responses between the experimental and numerical studies were attained. Data obtained from experimental and numerical studies illustrated that increasing the slope angle of the cohesionless backfill material resulted in an increase in the values of horizontal displacement in the walls, and in dynamic earth pressure and root mean square acceleration (Formula presented.). Increasing the stiffness of the reinforcement material caused a decrease in horizontal reinforced earth wall displacement and increases in dynamic earth pressure. In addition, the conventional pseudostatic limit equilibrium methods overestimated (Formula presented.) values, whereas they underestimated (Formula presented.) values, and the recommended (Formula presented.) values by current design codes were not found to be compatible with the numerical and experimental results.