Our current activity on this topic is mainly related to investigate the behaviour of earth retaining structures, such as retaining walls, that frequently represent key elements of many constructed facilities and their stability is very important, in particular when they are used in seismically active areas. While significant advances have been made in the design of gravity type retaining walls under seismic loadings, little progress has been achieved in the analysis of the seismic response of flexible retaining walls, that is a challenging geotechnical problem, for which the dynamic soil-structure interaction plays a critical role. Simplified pseudo-static approaches are usually adopted in the current practice, but they do not allow a realistic assessment of the performance of these structures in dynamic conditions. A validation of existing pseudo-static approaches, or the introduction of novel simplified methods for design, requires the preliminary investigation of the problem by fully dynamic soil-structure analyses, involving the numerical determination of stress state, bending moments, displacements, and spatial and temporal variability of accelerations.
Pettiti, A; Assimaki, D; Foti, Sebastiano
In: Proc. of the Fifth Int. Conf. on Recent Advances in Geotech. Earthq. Eng. and Soil Dyn.
Fifth Int. Conf. on Recent Advances in Geotech. Earthq. Eng. and Soil Dyn. (San Diego) may 2010
Vol.CD-Rom
Comina, C; Corigliano, M; Foti, Sebastiano; Lai, C. G.; Lancellotta, R; Leuzzi, Francesco; Lidestri, G; Paolucci, R; Pettitia, A; Psarropoulos, P. N.; Zanoli, O.
In: Proc. of 2008 Seismic Eng. Int. Conf. commemorating the 1908 Messina and Reggio Calabria Earthquake
AIP (STATI UNITI D'AMERICA)
MERCEA08 (Reggio Calabria) 8-11 July 2008
Vol.2 (pp.703-710)
Lancellotta, Renato
GEOTECHNIQUE
Institution of Civil Engineers Thomas Telford London
Vol.57 pp.3 (pp.319-321) ISSN:0016-8505 DOI:10.1680/geot.2007.57.3.319
Comina, Cesare; Foti, Sebastiano; Lancellotta, R; Leuzzi, Francesco; Pettiti, Alberto
In: Geotechnical Aspects of EC8
Pàtron (ITALIA)
XIV Europ. Conf. on Soil Mechanics and Geotechnical Eng., ISSMGE - ERTC 12 Workshop (Madrid) 25 September 2007
Vol.CD-Rom ISBN:9788855529433
Total: 4