Reliability-based calibration of resistance factors for static bearing capacity of driven steel pipe piles

As part of a study to develop load and resistance factor design (LRFD) codes for foundation structures in South Korea, resistance factors for the static bearing capacity of driven steel pipe piles were calibrated in the framework of the reliability theory. A database of 52 static load test results was compiled, and the data from these load test piles were sorted into two cases: a standard penetration test (SPT) N-value at pile tip (i) less than 50 and (ii) equal to or more than 50. Reliability analyses and resistance factor calibration for the two static bearing capacity analysis methods adopted in the Korean Design standards for foundation structures were performed using the first-order reliability method (FORM) and the Monte Carlo simulation (MCS). Reliability indices and resistance factors computed by the MCS are statistically identical to those computed by FORM. Target reliability indices were selected as 2.0 and 2.33 for the group pile case and 2.5 for the single pile case. The resistance factors rec...

[1]  G Philipponat.  FOUNDATIONS AND EARTH STRUCTURES , 1979 .

[2]  J M Duncan,et al.  MANUALS FOR THE DESIGN OF BRIDGE FOUNDATIONS: SHALLOW FOUNDATIONS, DRIVEN PILES, RETAINING WALLS AND ABUTMENTS, DRILLED SHAFTS, ESTIMATING TOLERABLE MOVEMENTS, AND LOAD FACTOR DESIGN SPECIFICATIONS AND COMMENTARY , 1991 .

[3]  E. Beer,et al.  Experimental Determination of the Shape Factors and the Bearing Capacity Factors of Sand , 1970 .

[4]  Michael McVay,et al.  LOAD AND RESISTANCE FACTOR DESIGN (LRFD) FOR DEEP FOUNDATIONS , 2004 .

[5]  null null.  Standard Guidelines for the Design and Installation of Pile Foundations , 1997 .

[6]  Moonkyung Chung,et al.  Resistance factor calculations for LRFD of axially loaded driven piles in sands , 2011 .

[7]  I M Viest,et al.  LOAD FACTOR DESIGN FOR STEEL HIGHWAY BRIDGES , 1971 .

[8]  W. Tang,et al.  RELIABILITY OF AXIALLY LOADED DRIVEN PILE GROUPS , 2001 .

[9]  G. Meyerhof,et al.  Safety factors in soil mechanics , 1970 .

[10]  R. Rackwitz,et al.  Structural reliability under combined random load sequences , 1978 .

[11]  G G Mayerhof,et al.  Bearing Capacity and Settlement of Pile Foundations , 1976 .

[12]  Dennis Shasha.  1 – Basic principles , 2003 .

[13]  Jae Hyun Park,et al.  Evaluation of Resistance Bias Factors for Load and Resistance Factor Design of Driven Steel Pipe Piles , 2007 .

[14]  Alec Westley Skempton,et al.  The bearing capacity of clays , 1951 .

[15]  Bryan E. Little,et al.  American Association of State Highway and Transportation Officials. Highway Drainage Guidelines American Association of State Highway and Transportation Officials. LRFD Bridge Design Specifications , 2000 .

[16]  Kiseok Kwak,et al.  Reliability Analysis of Static Bearing Capacity Evaluation of Driven Steel Pipe Piles , 2008 .

[17]  M. Davisson.  High capacity piles , 1972 .

[18]  Wilson H. Tang,et al.  Probability concepts in engineering planning and design , 1984 .

[19]  Tokiharu Ohta,et al.  SHEAR MODULUS AND SHEAR STRENGTH OF COHESIVE SOILS , 1974 .