Resistance Factors for Pile Foundations
| 项目名称： | Resistance Factors for Pile Foundations |
| 摘要： | 1. After October 2007, bridges must be designed by the AASHTO LRFD Specifications. 2. The LRFD Specifications have higher design loads than previous allowable design methods. 3. LRFD design is based upon ultimate loads and resistance factors. 4. Piles are driven according to the Standard Construction Specifications. which is based upon allowable design loads. 5. Bridge Design is using the higher LRFD loads but has been unable to make better use of resistance factors due to the limitations in our design and construction practices that affect both the structural and geotechnical pile capacity. 6. Because of the above factors, more or longer piles for bridge foundations are necessary, which results in unnecessarily more expensive foundations than previously used. 7. Better and more accurate resistance factors are needed. The main goal of this research will be to : Re-calibrate pile capacities to the LRFD Design Specifications; Investigate more cost effective and reliable methods of determining pile capacity through the use of resistance factors developed for Arkansas soils, pile load testing, other driving methods and formulas, etc.; and Make recommendations for programs to implement each of these methods. |
| 状态： | Completed |
| 资金： | 100000.00 |
| 资助组织： | Federal Highway Administration |
| 项目负责人： | Hanning, Chris |
| 执行机构： | Arkansas State Highway and Transportation Department |
| 开始时间： | 20081130 |
| 实际结束时间： | 20091201 |
| 主题领域： | Bridges and other structures；Construction；Design；Highways；Planning and Forecasting |
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