Reliability Analysis of Static Bearing Capacity Evaluation of Driven Steel Pipe Piles

As part of Load and Resistance Factor Design implementation effort in South Korea, reliability of the two static bearing capacity analysis methods for driven steel pipe piles adopted in the Korean Standards for Structure Foundations was evaluated. Over 2,000 static load test data on driven steel pipe piles were collected from all around the country. After review of the load-displacement curves, subsurface investigation reports, and other related documents, only 43 load test data were found to be useful for the reliability analysis. These load test piles were sorted into two cases: pile tip on soil case and pile tip on rock case. Resistance bias factor statistics of each pile tip case were evaluated for the two static design methods. Reliability analysis was performed by two types of First Order Reliability Methods, Mean Value First Order Second (MVFOSM) method and Advanced First Order Second (AFOSM) method, and Monte Carlo Simulation (MCS) method. Reliability of the static bearing capacity analysis methods for pile tip on soil case appears to be unacceptably low for safety factors in the range of 3 to 5. Reliability of the static bearing capacity analysis methods for pile tip on rock case is not conclusive. AFOSM method resulted in a little larger reliability indices than MVFOSM method, but the difference was not significant. Reliability indices computed by the MCS method were almost identical to those by the AFOSM method.

• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Kwak, Kiseok
  • Kim, Kyung Jun
  • Huh, Jungwon
• Conference:
  • Transportation Research Board 86th Annual Meeting
  • Location: Washington DC, United States
  • Date: 2007-1-21 to 2007-1-25
• Date: 2007

Language

• English

Media Info

• Media Type: CD-ROM
• Features: Figures; References; Tables;
• Pagination: 18p
• Monograph Title: TRB 86th Annual Meeting Compendium of Papers CD-ROM

Subject/Index Terms

• TRT Terms: Bearing capacity; Bridge foundations; Bridge substructures; Load and resistance factor design; Load transfer; Pile driving; Reliability; Static loads; Steel pipe
• Uncontrolled Terms: First order reliability method; Pile bearing capacity; Steel piling
• Geographic Terms: South Korea
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01046098
• Record Type: Publication
• Report/Paper Numbers: 07-1991
• Files: TRIS, TRB
• Created Date: Apr 18 2007 7:17AM