Location
San Diego, California
Presentation Date
26 May 2010, 4:45 pm - 6:45 pm
Abstract
Seismic analyses of a barrage raft floor resting on homogeneous and heterogeneous subsoil condition were carried out by means of finite element modeling and analysis. Three dimensional models considering soil-raft-structure system were developed for both circumstances. The soil continuum, cut-off, pier, beam and abutment were modeled using eight noded brick element whereas raft floor was modeled using four noded plate bending element. The relevant amount of soil around and bottom of the barrage raft foundation has been modeled to find the effect of homogeneous and heterogeneous soil media on the seismic behavior of barrage raft floor. The seismic analysis was performed using the site dependent response spectra by giving excitation across the flow and the finite element analyses takes into account adequately all factors that control significantly the response of the soil-raft-structure system. Influence of homogeneous and heterogeneous soil media was considered on the barrage raft floor under seismic condition at the upstream, ogee and downstream sections. Significant variations in dynamic behaviour of barrage raft floor were found and it has also been observed that stresses are significantly higher under heterogeneous soil medium compared to homogeneous soil medium.
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
Venkatesh, Kumar; Pandey, A. D.; and Samadhiya, N. K., "Seismic Response of Barrage Raft Floor Under Heterogeneous Soil Medium" (2010). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 45.
https://scholarsmine.mst.edu/icrageesd/05icrageesd/session05/45
Included in
Seismic Response of Barrage Raft Floor Under Heterogeneous Soil Medium
San Diego, California
Seismic analyses of a barrage raft floor resting on homogeneous and heterogeneous subsoil condition were carried out by means of finite element modeling and analysis. Three dimensional models considering soil-raft-structure system were developed for both circumstances. The soil continuum, cut-off, pier, beam and abutment were modeled using eight noded brick element whereas raft floor was modeled using four noded plate bending element. The relevant amount of soil around and bottom of the barrage raft foundation has been modeled to find the effect of homogeneous and heterogeneous soil media on the seismic behavior of barrage raft floor. The seismic analysis was performed using the site dependent response spectra by giving excitation across the flow and the finite element analyses takes into account adequately all factors that control significantly the response of the soil-raft-structure system. Influence of homogeneous and heterogeneous soil media was considered on the barrage raft floor under seismic condition at the upstream, ogee and downstream sections. Significant variations in dynamic behaviour of barrage raft floor were found and it has also been observed that stresses are significantly higher under heterogeneous soil medium compared to homogeneous soil medium.
