Konsol Bir İstinat Duvarının Sismik Davranışı Üzerinde Dolgu Etkileşiminin Değerlendirilmesi Üzerine Parametrik Bir Çalışma

Year 2016, Volume: 31 Issue: ÖS2, 199 - 204, 15.10.2016

Tufan Çakır

https://doi.org/10.21605/cukurovaummfd.316765

Cited By: 1

Abstract

Konsol duvarların sismik davranışının bilinmesi, bu yapıların deprem bölgelerindeki başarılı tasarımını tesis etmek için önemli bir unsurdur. Bu çalışmada, konsol bir istinat duvarının sismik tepkisi üzerinde dolgu özellikleri değişiminin etkilerini incelemek için bir sonlu elemanlar yöntemi kullanılmıştır. Bu yöntemde zemin-yapı ve dolgu-duvar etkileşimleri dikkate alınmıştır. Dört farklı dolgu zemini koşulu dikkate alınarak, dolgu-konsol duvar-temel/zemin sisteminin dinamik analizleri zaman ortamında ANSYS programıyla gerçekleştirilmiştir. Yerdeğiştirme ve gerilmeler doğrusal olmayan analizlerle belirlenmiş ve dinamik davranışın dolgu özelliklerine oldukça duyarlı olduğu ortaya konmuştur.

Keywords

Zemin-yapı etkileşimi, Sismik davranış, Sonlu elemanlar metodu, Zaman geçmişi

A Parametric Study on Evaluation of Backfill Interaction on Seismic Response of a Cantilever Wall

Abstract

Knowledge of the seismic behavior of cantilever retaining walls is an important component for their successful design in earthquake prone areas. In this study, a finite element procedure was used to investigate the effects of backfill soil properties variation on seismic response of a cantilever retaining wall. In this procedure, not only soil-structure interaction but also backfill-wall interaction was taken into consideration. Considering four different backfill soil conditions, the dynamic analyses of backfill-cantilever wall-soil/foundation system were carried out in time domain through ANSYS program. The magnitudes of lateral displacements and stresses were determined by performing non-linear time history analyses. As a result, based on the response amplification/reduction pattern observed on the lateral displacements and stresses, it is concluded that the dynamic behavior of cantilever walls is highly sensitive to the backfill characteristics.

Keywords

Soil-structure interaction, Seismic response, Finite element method, Time history

References

• 1. Shi, H., Jinxing, G., Yanqing, Z., 2016. Earth Pressure of Layered Soil on Retaining Structures, Soil Dynamics and Earthquake Engineering, 83, 33-52.
• 2. Kloukinas, P., Penna, A., di Santolo, A.S., Bhattacharya, S., Dietz, M., Dihoru, L., Evangelista, A., Simonelli, A.L., Taylor, C.A., Mylonakis, G., 2012. Experimental Investigation of Dynamic Behavior of Cantilever Retaining Walls, Second International Conference on Performance-Based Design in Earthquake Geotechnical Engineering, Taormina, Italy, May 28-30, paper no. 13.08.
• 3. Nazarian, H.N., Hadjian, A.H., 1979. Earthquake-Induced Lateral Soil Pressures on Structures, J. Geotech. Eng. Div., ASCE, 105(GT9), 1049-1066.
• 4. Veletsos, A.S., Younan, A.H., 1994. Dynamic Soil Pressures on Rigid Vertical Walls, Earthquake Engineering and Structural Dynamics, 23(3), 275-301.
• 5. Vrettos, C., Beskos, D.E., Triantafyllidis, T., 2016. Seismic Pressures on Rigid Cantilever Walls Retaining Elastic Continuously Non-Homogeneous Soil: An Exact Solution, Soil Dynamics and Earthquake Engineering, 82, 142-153.
• 6. Cakir, T., 2013. Evaluation of the Effect of Earthquake Frequency Content on Seismic Behavior of Cantilever Retaining Wall Including Soil-Structure Interaction, Soil Dynamics and Earthquake Engineering, 45, 96-111.
• 7. Theodorakopoulos, D.D., Chassiakos, A.P., Beskos, D.E., 2001. Dynamic Pressures on Rigid Cantilever Walls Retaining Poroelastic Soil Media. Part I. First Method of Solution, Soil Dynamics and Earthquake Engineering, 21, 315-338.
• 8. Gazetas, G., Psarropoulos, P.N., Anastasopoulos, I., Gerolymos, N., 2004. Seismic Behavior of Flexible Retaining Systems Subjected to Short-Duration Moderately Strong Excitation, Soil Dynamics and Earthquake Engineering, 24, 537-550.
• 9. Psarropoulos, P.N., Klonaris, G., Gazetas, G., 2005. Seismic Earth Pressures on Rigid and Flexible Retaining Walls, Soil Dynamics and Earthquake Engineering, 25, 795-809.
• 10. Giarlelis, C., Mylonakis, G., 2011. Interpretation of Dynamic Retaining Wall Model Tests in Light of Elastic and Plastic Solutions, Soil Dynamics and Earthquake Engineering, 31, 16-24.
• 11. Cakir, T., 2014a. Influence of Wall Flexibility on Dynamic Response of Cantilever Retaining Walls, Structural Engineering and Mechanics, 49, 1-22.
• 12. Cakir, T., 2014b. Backfill and Subsoil Interaction Effects on Seismic Behavior of a Cantilever Wall, Geomechanics and Engineering, 6, 117-138.
• 13. ANSYS 13.0, ANSYS Inc., Canonsburg, PA, 2010.
• 14. Wolf, J.P., Song, C., 1996. Finite Element Modelling of Unbounded Media, 11th World Conference on Earthquake Engineering, San Francisco.
• 15. Lysmer, J., Kuhlemeyer, R.L. 1969. Finite Dynamic Model for Infinite Media, J. Eng. Mech. Div., ASCE, 95, 859-877.