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- W3013101172 abstract "Seismic Performance-based design demands reliable means for profound understanding of inelastic and non-linear dynamic behavior of civil structures. In this study, a hybrid experimental and numerical approach for seismic assessment of soil-nailed structures is introduced which incorporates simple static loading of a small-scale physical model and non-linear dynamic analysis of a two degree-of-freedom (2 DOF) system. A vertical loading pattern was applied on a small-scale modeling test behind a soil-reinforced block at the surface to mobilize extra lateral pressure on the reinforced soil zone. Two non-linear force–displacement relations obtained from the lateral pressure and facing displacement values of the physical test have been denoted as capacity curves and employed as the non-linear stiffness of the 2 DOF springs. The capacity curves obtained from this approach inherently take into account the complexities of soil, nail, soil-nail-facing interactions and geometrical nonlinearities. The results of dynamic analysis from the 2 DOF model are presented in terms of bottom and top displacements as the direct performance of the structure under seismic excitation. A soil-nailed wall was tested under different input motions on a shaking table and the results were compared to assess the accuracy of the approach and identify the performance levels of soil-nailed structures. • A hybrid experimental and numerical approach is introduced. • An innovative set-up for dynamic testing of soil-nailed structures has been built. • Shaking table tests were used to assess the accuracy of the approach. • Generally reasonable agreement was found between the two approaches. • Three performance boundaries were derived for soil-nailed walls." @default.
- W3013101172 created "2020-04-03" @default.
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- W3013101172 date "2020-07-01" @default.
- W3013101172 modified "2023-09-29" @default.
- W3013101172 title "Hybrid experimental and numerical approach for assessment of non-linear dynamic behavior of soil-nailed retaining walls" @default.
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- W3013101172 doi "https://doi.org/10.1016/j.ijnonlinmec.2020.103476" @default.
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