Location
San Diego, California
Presentation Date
26 May 2010, 4:45 pm - 6:45 pm
Abstract
In general, under earthquake loading, the soil reaches the limit of its elastic behavior before the structural elements. Thus, an earthquake analysis approach assuming inelastic structural behavior under fixed base condition or with elastic dynamic soil-structure interaction (DSSI) hypothesis may be inadapted. This paper describes the investigation conducted in order to define the contribution of the pure elastic DSSI effects in the complete inelastic DSSI problem. With this purpose, a comparative analysis between elastic and inelastic soil behavior assumptions for two inelastic single-degree-of-freedom (SDOF) structures and two soils is carried out. The results point out that, in general, inelastic soil behavior plays a decisive role only when the soil is saturated. When the soil is in dry condition, an elastic DSSI approach seems to be accurate enough to take into account the modification of the structural response due to DSSI. Differences in structural dynamics responses are related to pore pressure generation induced in the inelastic case and neglected when elastic soil behavior is assumed.
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
Sáez, Esteban; López-Caballero, Fernando; and Modaressi-Farahmand-Razavi, Arézou, "Effect of Elastic and Inelastic DSSI on Seismic Demands of SDOFs Structures" (2010). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 15.
https://scholarsmine.mst.edu/icrageesd/05icrageesd/session05/15
Included in
Effect of Elastic and Inelastic DSSI on Seismic Demands of SDOFs Structures
San Diego, California
In general, under earthquake loading, the soil reaches the limit of its elastic behavior before the structural elements. Thus, an earthquake analysis approach assuming inelastic structural behavior under fixed base condition or with elastic dynamic soil-structure interaction (DSSI) hypothesis may be inadapted. This paper describes the investigation conducted in order to define the contribution of the pure elastic DSSI effects in the complete inelastic DSSI problem. With this purpose, a comparative analysis between elastic and inelastic soil behavior assumptions for two inelastic single-degree-of-freedom (SDOF) structures and two soils is carried out. The results point out that, in general, inelastic soil behavior plays a decisive role only when the soil is saturated. When the soil is in dry condition, an elastic DSSI approach seems to be accurate enough to take into account the modification of the structural response due to DSSI. Differences in structural dynamics responses are related to pore pressure generation induced in the inelastic case and neglected when elastic soil behavior is assumed.
