Location
St. Louis, Missouri
Presentation Date
13 Mar 1991, 1:30 pm - 3:30 pm
Abstract
This paper reviews the seismic soil structure interaction (SSI) analysis performed for the Modular High Temperature Gas-cooled Reactor (MHTGR). The large depth to diameter ratio of the silo requires proper modeling of embedment and silo flexibility when evaluating the response of the structure to seismic loads. The carputer program SASSI was used to perform the three dimensional SSI analysis in order to take full advantage of embedment in reducing seismic response. Acceleration response spectra were computed for three soil sites at various points in the silo walls and internal vessels. The results demonstrated the effectiveness of embedment in reducing the seismic response. In general, the lowest silo and vessel accelerations occurred in the softest site where the SSI effects are the most pronounced. For a rock site, embedment eliminated the problem faced by structures founded at grade of amplification at the structure's fundamental modes.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
2nd International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 1991 University of Missouri--Rolla, 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
Longstreth, Margaret; Appleford, Alan; and Tajirian, Frederick F., "Soil Structure Interaction Analysis of a Deeply Embedded Reactor Silo" (1991). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 39.
https://scholarsmine.mst.edu/icrageesd/02icrageesd/session05/39
Included in
Soil Structure Interaction Analysis of a Deeply Embedded Reactor Silo
St. Louis, Missouri
This paper reviews the seismic soil structure interaction (SSI) analysis performed for the Modular High Temperature Gas-cooled Reactor (MHTGR). The large depth to diameter ratio of the silo requires proper modeling of embedment and silo flexibility when evaluating the response of the structure to seismic loads. The carputer program SASSI was used to perform the three dimensional SSI analysis in order to take full advantage of embedment in reducing seismic response. Acceleration response spectra were computed for three soil sites at various points in the silo walls and internal vessels. The results demonstrated the effectiveness of embedment in reducing the seismic response. In general, the lowest silo and vessel accelerations occurred in the softest site where the SSI effects are the most pronounced. For a rock site, embedment eliminated the problem faced by structures founded at grade of amplification at the structure's fundamental modes.
