Suggestion of Load and Resistance Factored Design Value for PHC Bored Pile

PHC 매입말뚝의 하중저항 설계정수 제안

Park, Jong-Bae;Park, Yong-Boo;Lee, Bum-Sik;Kim, Sang-Yeon

  • Received : 2012.06.21
  • Accepted : 2012.07.17
  • Published : 2012.07.30


The limit states design method is replacing the allowable stress design method worldwide, e.g. the design code of ISO and various construction codes of Korea are adopting the reliability based limit state method. This paper proposed LRFD design value which is one of limit states design method for the PHC bored pile used as building foundation. This paper analysed 81 load test results and the bearing design(Meyerhof method & SPT-CPT conversion method), and proposed LRFD value for each design reliability Index 2.33 and 3.0 for PHC bored pile. LRFD value of PHC bored pile represents 0.36~0.44 for Meyerhof method and 0.24~0.31 for SPT-CPT conversion method according to the deign reliability index.


PHC Pile;Bored Pile;Limit States Design Method;LRFD(Load and Resistance factored Design Method);Deign Reliability Index


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