Project 2d: Calibration of Load and Resistance Factors in LRFD Foundation Design Specifications

The AASHTO LRFD Design Specifications for drilled shaft foundations are yet to be calibrated with test data in Missouri sites. Foundation is a critical part of a bridge system. It not only affects the stability of the overall system, but also constitutes a significant portion of the bridge construction costs. Therefore, better calibrations with field tests are imperative. Additionally, foundation design calibrations warrant the consideration of a bridge system and thus require a close collaboration between geotechnical and structural engineering. Typical bridges will be analyzed to understand the demand (load factor) on drilled shaft foundations and the required strength (resistance factor) given a certain allowable displacement. Both load and resistance factors will be calibrated with the Missouri environment and traffic condition using a reliability-based approach.


  • English


  • Status: Completed
  • Contract Numbers:


  • Sponsor Organizations:

    Missouri Department of Transportation

    1617 Missouri Boulevard
    P.O. Box 270
    Jefferson City, MO  United States  65102
  • Principal Investigators:

    Chen, Genda

  • Start Date: 20080901
  • Expected Completion Date: 0
  • Actual Completion Date: 20101130
  • Source Data: RiP Project 18899

Subject/Index Terms

Filing Info

  • Accession Number: 01464396
  • Record Type: Research project
  • Source Agency: Center for Infrastructure Engineering Studies
  • Contract Numbers: DTRT06-G-0014
  • Files: UTC, RiP, STATEDOT
  • Created Date: Jan 3 2013 2:41PM