A Laboratory and Field Study of Composite Piles for Bridge Substructures
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2006-03-01
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Edition:Final report
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Abstract:The most commonly used pile materials are steel, concrete, and wood. These materials can degrade, and the degradation rate can be relatively rapid in harsh marine environments. It has been estimated that the U.S. spends over $1 billion annually for repair and replacement of waterfront piling systems. This high cost has spurred interest in alternative composite pile materials such as fiber-reinforced polymers (FRPs), recycled plastics, and hybrid materials. Because only minimal performance data have been collected for composite piles, a research project was undertaken to investigate (1) soil-pile interface behavior of composite piles, (2) the long-term durability of concrete-filled FRP shell composite piles, and (3) the driveability and axial and lateral load response of concrete-filled FRP composite piles and steel-reinforced recycled plastic piles by means of field tests and analyses. In addition, a long-term monitoring program was implemented at a bridge over the Hampton River in Virginia.
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Content Notes:Chapter 1. Introduction – Chapter 2. Background and Literature Review – Chapter 3. Experimental Study of Interface Behavior Between Composite Piles and Two Sands – Chapter 4. Experimental Durability Study of FRP Composite Piles – Chapter 5. Field Load Tests at the Route 40 Bridge – Chapter 6. Field Load Tests at the Route 351 Bridge – Chapter 7. Analyses of the Axial Load Tests at the Route 351 Bridge – Chapter 8. Analyses of the Lateral Load Tests at the Route 351 Bridge – Chapter 9. Long-Term Monitoring at the Route 351 Bridge – Chapter 10. Cost Information for Composite Piles – Chapter 11. Summary and Conclusions – Appendix A. Interface Test Results – Appendix B. Moisture Diffusion Into a Cylindrical FRP Composite – Appendix C. Structural Tests Results From Composite Pile Cutoff Sections From the Route 40 Bridge Project – Appendix D. Geotechnical Field Investigations at the Route 351 Bridge Test Site – References
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