Geo-Congress 2020
Effects of Rocking Coefficient on Seismic Energy Dissipation, Permanent Settlement, and Self-Centering Characteristics of Rocking Shallow Foundations
Publication: Geo-Congress 2020: Geotechnical Earthquake Engineering and Special Topics (GSP 318)
ABSTRACT
Several researchers have conducted dynamic shaking experiments to examine the rocking behavior of shallow foundations during earthquake loading. This study analyses the results of 142 of such individual experiments from the U.S., Italy, and Greece conducted on centrifuge and shaking tables. The objectives of this research are (i) to summarize seismic energy dissipation in soil due to rocking, permanent settlement of the foundation, and the self-centering ability of the foundation; and (ii) to explore possible correlations between the above mentioned parameters and rocking coefficient of the soil-foundation-structure system, slenderness ratio of the structure, peak ground acceleration, and the Arias intensity of the earthquake. It is found that energy dissipation and permanent settlement correlate well with the Arias intensity of the earthquake rather than peak ground acceleration. A new parameter, defined as the tipping-over stability ratio, shows that rocking foundations possess excellent stability against tipping over failure.
Get full access to this article
View all available purchase options and get full access to this chapter.
REFERENCES
Anastasopoulos, I., Gazetas, G., Loli, M., Apostolou, M., and Gerolymos, N. (2010). "Soil failure can be used for seismic protection of structures." Bulletin of Earthquake Engineering, 8(2), 309-3261–32.
Anastasopoulos, I., Loli, M., Georgarakos, T., and Drosos, V., (2013). “Shaking table testing of rocking-isolated bridge pier on sand”, J. Earthquake Eng. 17, 1–32
Antonellis, G., Gavras, A. G., Panagiotou, M., Kutter, B. L., Guerrini, G., Sander, A. 547 C., and Fox, P. J.,(2015). “Shake table test of large-scale bridge columns supported on rocking shallow foundations”, J.Geotech. Geoenviron. Eng. 141.
Deng, L., and Kutter, B. L.,(2012). “Characterization of rocking shallow foundations using centrifuge model tests”, Earthquake Engng Struct. Dyn. 41, 1043–1060.
Deng, L., Kutter, B. L., and Kunnath, S. K.,(2012). “Centrifuge modeling of bridge systems designed for rocking foundations”, J. Geotech. Geoenviron. Eng. 138, 335–344.
Drosos, V., Georgarakos, T., Loli, M., Anastsopoulos, I., Zarzouras, O., and Gazetas, G. (2012). "Soil-Foundation-Structure Interaction with Mobilization of Bearing Capacity: Experimental Study on Sand." J.Geotech. Geoenviron, 138(11), 1369–1386
Federal Emegency Management Agency (2000). Prestandard and commentary for the seismic rehabilitation of buildings. Prepared by ASCE, FEMA publication 356, November 2000
Gajan, S., and Kutter, B. L., (2008). “Capacity, settlement, and energy dissipation of shallow footings subjected to rocking”, J. Geotech. Geoenviron. Eng. 134, 1129–1141
Gajan, S., Phalen, J. D., Kutter, B. L., Hutchinson, T. C. and Martin, G. (2005), "Centrifuge modeling of load-deformation behavior of rocking shallow foundations", Soil Dynamics and Earthquake Engineering. Vol. 25 (7-10), 2005, pp 773-783
Hakhamaneshi, M., Kutter, B. L., Deng, L., Hutchinson, T. C., and Liu, W., (2012). “New findings from centrifuge modeling of rocking shallow foundations in clayey ground”, in Proc, GeoCongress 2012, 25–29 March, 2012, Oakland, CA.
Sharma, K., and Deng, L., (2019). “Characterization of rocking shallow foundation on cohesive soil using field snap-back tests”, J. Geotech. Geoenviron. Eng. 145(9).
Tsatsis, A., Anastasopoulos, I., (2015). “Performance of rocking systems on shallow improved sand: shaking table testing”, Front. Built Environ. 1:9.
Information & Authors
Information
Published In
Geo-Congress 2020: Geotechnical Earthquake Engineering and Special Topics (GSP 318)
Pages: 123 - 131
Editors: James P. Hambleton, Ph.D., Northwestern University, Roman Makhnenko, Ph.D., University of Illinois at Urbana-Champaign, and Aaron S. Budge, Ph.D., Minnesota State University, Mankato
ISBN (Online): 978-0-7844-8281-0
Copyright
© 2020 American Society of Civil Engineers.
History
Published online: Feb 21, 2020
Published in print: Feb 21, 2020
ASCE Technical Topics:
- Continuum mechanics
- Dynamic loads
- Dynamics (solid mechanics)
- Earthquakes
- Energy dissipation
- Engineering fundamentals
- Engineering mechanics
- Foundation settlement
- Foundations
- Geohazards
- Geomechanics
- Geotechnical engineering
- Seismic loads
- Seismic tests
- Shallow foundations
- Soil dynamics
- Soil mechanics
- Soil settlement
- Solid mechanics
- Structural dynamics
- Tests (by type)
- Thermodynamics
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.