Subsoil Interventions Effect on Structural Seismic Response. Part II: Parametric Investigation
- 28 March 2009
- journal article
- research article
- Published by Informa UK Limited in Journal of Earthquake Engineering
- Vol. 13 (3), 328-344
- https://doi.org/10.1080/13632460802347471
Abstract
In the present article the effect of subsoil interventions on the response of soil-structure systems under strong earthquake shaking is studied. Several idealized configurations of commonly applied as well as innovative intervention techniques are examined, referring to increased or reduced stiffness of the initial subsoil conditions of the subsoil-foundation-structure system. Numerical analysis utilizing validated simulation procedures covers a large spectrum of structures and soil conditions. A parametric investigation of several key factors is also conducted. A comparative evaluation of the results in time and frequency domain is aiming in generalizing the conclusions to several earthquake and soil-structure combinations. Obtained results reveal a rather detrimental effect of the stiffness-increasing methods, whereas techniques related to modification of oscillation dynamic properties with flexible subsoil intervention schemes, present promising alternatives for an efficient mitigation of structural response to strong earthquakes.Keywords
This publication has 6 references indexed in Scilit:
- Subsoil Interventions Effect on Structural Seismic Response. Part I: Validation of Numerical SimulationsJournal of Earthquake Engineering, 2009
- Reduction of ground vibration by means of barriers or soil improvement along a railway trackSoil Dynamics and Earthquake Engineering, 2005
- Soil Isolation for Seismic Protection Using a Smooth Synthetic LinerJournal of Geotechnical and Geoenvironmental Engineering, 2004
- Foundation Isolation for Seismic Protection Using a Smooth Synthetic LinerJournal of Geotechnical and Geoenvironmental Engineering, 2004
- Capacity spectrum method based on inelastic demand spectraEarthquake Engineering & Structural Dynamics, 1999
- Modelling of pile wave barriers by effective trenches and their screening effectivenessSoil Dynamics and Earthquake Engineering, 1999