Re-evaluation of LRFD Resistance Factors of Driven Piles

Gunaratne, Manjriker; Mullins, Gray; Wasman, Scott J.; University of South Florida. Dept. of Civil and Environmental Engineering; University of Florida, Gainesville. Engineering School of Sustainable Infrastructure and Environment (ESSIE)

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Re-evaluation of LRFD Resistance Factors of Driven Piles

2018-12-01
By Gunaratne, Manjriker ; Mullins, Gray ; Wasman, Scott J.

[PDF-3.58 MB]

English

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Creators:

Gunaratne, Manjriker ; Mullins, Gray ; Wasman, Scott J.

Gunaratne, Manjriker ; Mullins, Gray ; Wasman, Scott J. Less -
Corporate Creators:

University of South Florida. Dept. of Civil and Environmental Engineering ; University of Florida, Gainesville. Engineering School of Sustainable Infrastructure and Environment (ESSIE)

University of South Florida. Dept. of Civil and Environmental Engineering ; University of Florida, Gainesville. Engineering School of Sustainable Infrastructure and Environment (ESSIE) Less -
Corporate Contributors:

Florida. Dept. of Transportation
Subject/TRT Terms:

[+]

Data Collection Driven EDC Load And Resistance Factor Design Load Tests PDA Pile Driving Piles Piles (Supports) Resistance (Mechanics) Static Loads Statistical Analysis
Resource Type:

Tech Report
Geographical Coverage:

Florida ; United States

Florida ; United States Less -
Edition:

Final report; January 2018 – December 2018
Contracting Officer:

Larry Jones
Corporate Publisher:

Florida. Dept. of Transportation
Abstract:

The objective of this project was to evaluate the predicted capacity based on the embedded data collector(EDC) and the pile driving analyzer (PDA) compared to the corresponding static load test capacity of driven piles for the purpose of establishing appropriate Load and Resistance Factor Design (LRFD) resistance factors for use with the EDC-FDOT method and the PDA-CAPWAP method. To this end, University of South Florida (USF) and University of Florida (UF) researchers analyzed the static load test results and the corresponding capacity predictions based on EDC-FDOT and PDA-CAPWAP methods for 27 test piles driven and tested between 2008 and 2017. In addition, PDA-CAPWAP predictions and corresponding static load test results from a number of previously available test piles were also considered to supplement the above database. The resistance factors were computed based on the three traditional methods, namely the First-order second moment (FOSM) method, the Advanced first-order second moment (AFOSM) method and the Monte Carlo (MC) method. EDC-FDOT method predictions produced marginally higher resistance factors than the PDA-CAPWAP method. An approximate confidence interval analysis of the sample data set showed that with the number of test piles available, both PDA and EDC-FDOT methods provided a satisfactory margin of error for bias factors with high confidence levels.
Format:

PDF
Funding:

BDV25-977-53
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:79f4353fc4d6913c0e2dad8544e2e9c52cd25dc87e7a55d1c2436817318f1647
Download URL:

https://rosap.ntl.bts.gov/view/dot/42402/dot_42402_DS1.pdf
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Re-evaluation of LRFD Resistance Factors of Driven Piles

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