Ferreris Barreto, Miguel

Profile Picture

Filters

20211
Reset filters

Settings

Citations

Publication Search Results

Now showing 1 - 1 of 1
  • Thumbnail Image
    Publication
    Seismic soil pressures on rigid walls subjected to pulse-like earthquake ground motions
    (2021-05-11) Ferreris Barreto, Miguel; Vidot Vega, Aidcer L.; College of Engineering; Ramos Cabeza, Ricardo; Suárez, Luis E.; Adorno Bonilla, Carlos; Department of Civil Engineering; Marín Martín, Carlos
    Pulse-like earthquakes are believed to impose larger structural demands on structures due to the sudden release of seismic energy. This can cause concern in areas that are near fault due to the possibility of structures not being designed to withstand higher seismic demands and could be significant for embedded retaining walls in nuclear power plants. In this study, a finite element model of soil embedded wall is developed to examine the non-linear response of this system to pulse-like earthquake ground motions. For the finite element analysis, the open-source program OpenSees is used for the simulation of an embedded rigid retaining wall. The analyses are performed using records that match narrow-band modified target spectra for different moment magnitude scenarios ranging from 5.03 to 7.70. The pressures, shears, and moments from the finite element model are evaluated. Current acceptable pressure methods used in engineering practice are also evaluated These methods are: Mononobe-Okabe using coulomb wedge sliding theory for gravity walls, Wood (1973) solution for rigid walls using elastic theory, and Ostadan (2005) for building walls. The results from these methods will be compared with the full non-linear finite element model results. In this study, it is observed that generally this type of earthquakes impose larger demands on a embedded rigid retaining wall, but the magnitude of the demand is still comparable with normal ground motions.