Skip to main content Accessibility help
×
Home

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

  • J.-S. Chiou (a1), Y.-C. Tsai (a2) and C.-H. Chen (a2)

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.

Copyright

Corresponding author

*Corresponding author (jschiou@ncree.narl.org.tw)

References

Hide All
1. Applied Technology Council ATC-32, Improved Seismic Design Criteria for California Bridges: Provisional Recommendations, Redwood City, California (1996).
2. Railway Technical Research Institute (RTRI), Seismic Design Code for Railway Structures, Tokyo (in Japanese) (1999).
3. Japan Road Association (JRA), Specifications for Highway Bridges, Part V, Seismic Design, Tokyo (in Japanese) (2002).
4. Park, R. and Falconer, T. J., “Ductility of Prestressed Concrete Piles Subjected to Simulated Seismic Loading,” PCI Journal, 28, pp. 112144 (1983).
5. Banerjee, S., Stanton, J. F. and Hawkins, N. M., “Seismic Performance of Precast Concrete Bridge Piles,” Journal of Structural Engineering, ASCE, 113, pp. 381396 (1987).
6. Budek, A. M., “The Inelastic Behavior of Reinforced Concrete Piles and Pile Shafts,” PhD Dissertation, University of California, San Diego (1997).
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. 510517 (2000).
8. Budek, A. M. and Benzoni, G., “Obtaining Ductile Performance from Precast, Prestressed Concrete Piles,” PCI Journal, 54, pp. 6480 (2009).
9. Chai, Y. H., “Flexural Strength and Ductility of Extended Pile-Shafts. I: Analytical Model,” Journal of Structural Engineering, ASCE, 128, pp. 586594 (2002).
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. 595602 (2002).
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. 10511059 (2005).
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. 13411346 (2009).
13. Matlock, H., “Correlations for Design of Laterally Loaded Piles in Clay,” Proceedings of 2nd Annual Offshore Technology Conference, Houston, Texas, (OTC 1204), pp. 577594 (1970).
14. Reese, L. C. and Welch, R. C., “Lateral Loading of Deep Foundations in Stiff Clay,” Proceedings, ASCE, 101, GT7, pp. 633649 (1975).
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. 969985 (1979).
16. Reese, L. C., Isenhower, W. M. and Wang, S. T., Analysis and Design of Shallow and Deep Foundations, John Wiley & Sons, Inc (2006).
17. Kowalsky, M. J., “Deformation Limit States for Circular Reinforced Concrete Bridge Columns,” Journal of Structural Engineering, ASCE, 126, pp. 869878 (2000).
18. Chadwell, C., UC Fyber: Cross Section Analysis Structural Software, Version 2.2, Department of Civil Engineering, University of California, Berkeley (1999).
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. 18041826 (1988).
20. Priestley, M. J. N., Seible, F. and Calvi, G. M., Seismic Design and Retrofit of Bridges, Wiley- Interscience, New York (1996).
21. Chai, Y. H. and Song, S. T., “Assessment of Seismic Performance of Extended Pile-Shafts,” Earthquake Engineering and Structural Dynamics, 128, pp. 19371954 (2003).
22. Budek, A. M. and Benzoni, G., “Rational Seismic Design of Precast, Prestressed Concrete Piles,” PCI Journal, 53, pp. 4053 (2008).
23. Gere, J. M. and Timoshenko, S. P., Mechanics of Materials, Wadsworth, Inc., California (1984).
24. SAP 2000, Basic Analysis Reference, Version 8, Computers & Structures, Berkeley, California, USA (2002).

Keywords

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

  • J.-S. Chiou (a1), Y.-C. Tsai (a2) and C.-H. Chen (a2)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed