Development of Resistance Factors for Axial Capacity of Driven Piles in North Carolina

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dc.contributor.advisor Roy H. Borden, Committee Member en_US
dc.contributor.advisor M. Shamimur Rahman, Committee Co-Chair en_US
dc.contributor.advisor Mohammed A. Gabr, Committee Chair en_US
dc.contributor.advisor C. C. Tung, Committee Member en_US Kim, Kyung Jun en_US 2010-04-02T18:52:29Z 2010-04-02T18:52:29Z 2003-02-11 en_US
dc.identifier.other etd-11092002-125104 en_US
dc.description.abstract Resistance factors were developed in the framework of reliability theory for the Load and Resistance Factor Design (LRFD) of driven pile's axial capacity in North Carolina utilizing pile load test data available from the North Carolina Department of Transportation. A total of 140 Pile Driving Analyzer (PDA) data and 35 static load test data were compiled and grouped into different design categories based on four pile types and two geologic regions. Resistance statistics were evaluated for each design category in terms of bias factors. Bayesian updating was employed to improve the statistics of the resistance bias factors, which were derived from a limited number of pile load test data. Load statistics presented in the current AASHTO LRFD Bridge Design Specifications were used in the reliability analysis and the calibration of the resistance factors. Reliability analysis of the current NCDOT practice of pile foundation design was performed to evaluate the level of safety and to select the target reliability indices. Resistance factor calibration was performed for the three methods of static pile capacity analysis commonly used in the NCDOT: the Vesic, the Nordlund, and the Meyerhof methods. Two types of First Order Reliability Methods (Mean Value First Order Second Moment method and Advanced First Order Second Moment method) were employed for the reliability analysis and the calibration of the resistance factors. Recommended resistance factors are presented for the three methods of static pile capacity analysis and for seven different design categories of pile types and geologic regions. The resistance factors developed and recommended from this research are specific for the pile foundation design by the three static capacity analysis methods and for the distinct soil type of the geologic regions of North Carolina. The methodology of the resistance factor calibration developed from this research can be applied to the resistance factor calibration for other foundation types. en_US
dc.rights I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to NC State University or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report. en_US
dc.subject pile bearing capacity en_US
dc.subject load and resistance factor design en_US
dc.subject Vesic en_US
dc.subject Nordlund en_US
dc.subject Meyerhof en_US
dc.subject reliability analysis en_US
dc.subject FORM en_US
dc.subject MVFOSM en_US
dc.subject AFOSM en_US
dc.subject resistance factor calibration en_US
dc.subject pile driving analyzer en_US
dc.subject static load test en_US
dc.subject bias factor en_US
dc.title Development of Resistance Factors for Axial Capacity of Driven Piles in North Carolina en_US PhD en_US dissertation en_US Civil Engineering en_US

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