Location
San Diego, California
Presentation Date
26 May 2010, 4:45 pm - 6:45 pm
Abstract
The beneficial or detrimental effect of dynamic Soil-Structure Interaction (SSI) is a controversial issue. With reference to an idealized R/C shear building, a comprehensive comparison between the results obtained with a classical fixed-base analysis and a complete SSI analysis is provided in the present paper. The shear-type structure is modeled as generalized Single Degree Of Freedom (SDOF) system using the principle of virtual displacements. The foundation consists of surface square foundations resting on different soil conditions, consistent with the provisions of EC8-part I. SSI effects in the far-field of earthquakes was evaluated by direct application of the elastic pseudo-acceleration/displacement design spectra proposed in EC8, taking into account the change in natural period and damping of the soil-structure system. SSI effect in near-field area of earthquakes was analyzed using the computer program SASSI2000 (Lysmer et al., 1999), by means of a set of ten actual earthquakes recorded within a distance of 20 km from fault The proposed analyses can be easily used by consultants who want to face the task of SSI in an immediate and simplified manner, without devoting resources into complex analysis. The charts proposed in this paper could be incorporated in seismic guidelines.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
5th International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics
Publisher
Missouri University of Science and Technology
Document Version
Final Version
Rights
© 2010 Missouri University of Science and Technology, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Renzi, Stefano; Mylonakis, George; Vannucchi, Giovanni; and Madiai, Claudia, "Influence of Soil-Structure Interaction on Seismic Response of Shear Buildings" (2010). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 28.
https://scholarsmine.mst.edu/icrageesd/05icrageesd/session05/28
Included in
Influence of Soil-Structure Interaction on Seismic Response of Shear Buildings
San Diego, California
The beneficial or detrimental effect of dynamic Soil-Structure Interaction (SSI) is a controversial issue. With reference to an idealized R/C shear building, a comprehensive comparison between the results obtained with a classical fixed-base analysis and a complete SSI analysis is provided in the present paper. The shear-type structure is modeled as generalized Single Degree Of Freedom (SDOF) system using the principle of virtual displacements. The foundation consists of surface square foundations resting on different soil conditions, consistent with the provisions of EC8-part I. SSI effects in the far-field of earthquakes was evaluated by direct application of the elastic pseudo-acceleration/displacement design spectra proposed in EC8, taking into account the change in natural period and damping of the soil-structure system. SSI effect in near-field area of earthquakes was analyzed using the computer program SASSI2000 (Lysmer et al., 1999), by means of a set of ten actual earthquakes recorded within a distance of 20 km from fault The proposed analyses can be easily used by consultants who want to face the task of SSI in an immediate and simplified manner, without devoting resources into complex analysis. The charts proposed in this paper could be incorporated in seismic guidelines.
