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Investigating Influencing Factors on the Ductility Capacity of a Fixed-Head Reinforced Concrete Pile in Homogeneous Clay

Published online by Cambridge University Press:  09 August 2012

J.-S. Chiou ,
Y.-C. Tsai  and
C.-H. Chen
J.-S. Chiou*
Affiliation:
National Center for Research on Earthquake Engineering, Taipei, Taiwan 10668, R.O.C.
Y.-C. Tsai
Affiliation:
Department of Civil Engineering, National Taiwan University Taipei, Taiwan 10617, R.O.C.
C.-H. Chen
Affiliation:
Department of Civil Engineering, National Taiwan University Taipei, Taiwan 10617, R.O.C.
*
*Corresponding author (jschiou@ncree.narl.org.tw)
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Abstract

This study performs parametric analyses on the displacement ductility capacity of a fixed-head reinforced concrete pile in homogeneous clay, considering the spread of plasticity in the pile. The parametric study regards the pile as a limited ductility structure, which conditionally allows the pile to have inelastic response during large loading. The variables considered include the pile section parameters and p-y model parameters. A large number of pushover analyses are conducted to examine the displacement ductility capacity of the pile. The results show that the plastic hinging will occur at the pile head region for a fixed-head pile, and the displacement ductility capacity of the pile is mainly influenced by the over-strength ratio of the pile section. Furthermore, the second plastic region may occur in ground when the axial force is in high tension. Based on the design concept of limited ductility structures, the high tensile force in pile should be avoided in pile design. A quantitative relationship between the displacement ductility capacity and over-strength ratio is suggested for engineering applications.

Keywords

Ductility capacityOver-strength ratioPilesPlastic hingesSeismic design
Type
Articles
Information
Journal of Mechanics , Volume 28 , Issue 3 , September 2012 , pp. 489 - 498
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2012

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References

REFERENCES

1. Applied Technology Council ATC-32, Improved Seismic Design Criteria for California Bridges: Provisional Recommendations, Redwood City, California (1996).Google Scholar
2. Railway Technical Research Institute (RTRI), Seismic Design Code for Railway Structures, Tokyo (in Japanese) (1999).Google Scholar
3. Japan Road Association (JRA), Specifications for Highway Bridges, Part V, Seismic Design, Tokyo (in Japanese) (2002).Google Scholar
4. Park, R. and Falconer, T. J., “Ductility of Prestressed Concrete Piles Subjected to Simulated Seismic Loading,” PCI Journal, 28, pp. 112–144 (1983).CrossRefGoogle Scholar
5. Banerjee, S., Stanton, J. F. and Hawkins, N. M., “Seismic Performance of Precast Concrete Bridge Piles,” Journal of Structural Engineering, ASCE, 113, pp. 381–396 (1987).CrossRefGoogle Scholar
6. Budek, A. M., “The Inelastic Behavior of Reinforced Concrete Piles and Pile Shafts,” PhD Dissertation, University of California, San Diego (1997).Google Scholar
7. Budek, A. M., Pristley, M. J. N. and Benzoni, G., “Inelastic Seismic Response of Bridge Drilled-Shaft RC Pile/Columns,” Journal of Structural Engineering, ASCE, 126, pp. 510–517 (2000).CrossRefGoogle Scholar
8. Budek, A. M. and Benzoni, G., “Obtaining Ductile Performance from Precast, Prestressed Concrete Piles,” PCI Journal, 54, pp. 64–80 (2009).CrossRefGoogle Scholar
9. Chai, Y. H., “Flexural Strength and Ductility of Extended Pile-Shafts. I: Analytical Model,” Journal of Structural Engineering, ASCE, 128, pp. 586–594 (2002).CrossRefGoogle Scholar
10. Chai, Y. H. and Hutchinson, T. C., “Flexural Strength and Ductility of Extended Pile-Shafts. II: Experimental Study,” Journal of Structural Engineering, ASCE, 128, pp. 595–602 (2002).Google Scholar
11. Song, S. T., Chai, Y. H. and Hale, T. H., “Analytical Model for Ductility Assessment of Fixed-Head Concrete Piles,” Journal of Structural Engineering, ASCE, 131, pp. 1051–1059 (2005).Google Scholar
12. Chiou, J. S., Yang, H. H. and Chen, C. H., “Use of Plastic Hinge Model in Nonlinear Pushover Analysis of a Pile,” Journal of Geotechnical and Geoenvironmental Engineeering, ASCE, 135, pp. 1341–1346 (2009).CrossRefGoogle Scholar
13. Matlock, H., “Correlations for Design of Laterally Loaded Piles in Clay,” Proceedings of 2nd Annual Offshore Technology Conference, Houston, Texas, (OTC 1204), pp. 577–594 (1970).Google Scholar
14. Reese, L. C. and Welch, R. C., “Lateral Loading of Deep Foundations in Stiff Clay,” Proceedings, ASCE, 101, GT7, pp. 633–649 (1975).Google Scholar
15. Bhushan, K., Haley, S. C. and Fong, P. T., “Lateral Load Tests on Drilled Piers in Stiff Clays,” Journal of the Geotechnical Engineering Division, ASCE, 105, GT8, pp. 969–985 (1979).Google Scholar
16. Reese, L. C., Isenhower, W. M. and Wang, S. T., Analysis and Design of Shallow and Deep Foundations, John Wiley & Sons, Inc (2006).Google Scholar
17. Kowalsky, M. J., “Deformation Limit States for Circular Reinforced Concrete Bridge Columns,” Journal of Structural Engineering, ASCE, 126, pp. 869–878 (2000).Google Scholar
18. Chadwell, C., UC Fyber: Cross Section Analysis Structural Software, Version 2.2, Department of Civil Engineering, University of California, Berkeley (1999).Google Scholar
19. Mander, J. B., Priestley, M. J. N. and Park, R., “Theoretical Stress-Strain Model for Confined Concrete,” Journal of the Structural Division, ASCE, 114, pp. 1804–1826 (1988).CrossRefGoogle Scholar
20. Priestley, M. J. N., Seible, F. and Calvi, G. M., Seismic Design and Retrofit of Bridges, Wiley- Interscience, New York (1996).Google Scholar
21. Chai, Y. H. and Song, S. T., “Assessment of Seismic Performance of Extended Pile-Shafts,” Earthquake Engineering and Structural Dynamics, 128, pp. 1937–1954 (2003).CrossRefGoogle Scholar
22. Budek, A. M. and Benzoni, G., “Rational Seismic Design of Precast, Prestressed Concrete Piles,” PCI Journal, 53, pp. 40–53 (2008).CrossRefGoogle Scholar
23. Gere, J. M. and Timoshenko, S. P., Mechanics of Materials, Wadsworth, Inc., California (1984).Google Scholar
24. SAP 2000, Basic Analysis Reference, Version 8, Computers & Structures, Berkeley, California, USA (2002).Google Scholar