BUCKLING STRENGTH OF PILE

PREVIOUS SOLUTIONS FOR THE BUCKLING STRENGTH OF PILES ARE BASED ON THE ASSUMPTIONS THAT THE PILES ARE FULLY EMBEDDED AND SUBJECT TO NO HORIZONTAL LOADS. IN COMMON ENGINEERING PRACTICE, THE BUCKLING OF A PILE IS CONSTANTLY ASSOCIATED WITH ITS FREESTANDING LENGTH ABOVE THE MUD LINE. THE SOLUTION OF SUCH PROBLEMS REQUIRES THE EXTRAPOLATION OF THE ANALYSIS AND THE ACCURACY OF THE RESULT IS CORRESPONDINGLY AFFECTED. IN THIS PAPER, A REVIEW HAS BEEN GIVEN OF /1/ THE ELASTIC STABILITY OF PARTIALLY EMBEDDED PILES BY ASSUMING THAT THE BUCKLING DEFLECTION IS A HALF-SINE CURVE, /2/ THE GENERAL EQUATION OF HORIZONTAL SUBGRADE REACTION BASED ON THE INTERACTION OF PILE AND FOUNDATION SOIL, /3/ THE RELATION BETWEEN PILE DEFLECTION AND SOIL REACTION, AND /4/ THE EFFECT OF HORIZONTAL TRANSLATION ON THE CRITICAL BUCKLING STRENGTH OF A PILE. WHEN THE CRITICAL BUCKLING STRENGTH OF A PILE IS GREATER THAN ITS COMPRESSIVE YIELD STRENGTH OF MATERIAL, THE PILE WILL NOT FAIL BY ELASTIC BUCKLING. IN NORMAL FOUNDATION CONDITION, ONLY A LITTLE SOIL CONFINEMENT IS REQUIRED TO PREVENT THE BUCKLING OF A PILE UNLESS THE FREESTANDING LENGTH BECOMES EXCESSIVELY LONG. THE REDUCTION OF ELASTIC STABILITY IS MORE CRITICAL FOR A PILE SUBJECT TO A HORIZONTAL FORCE THAN DUE TO THE INCREASE OF FREESTANDING LENGTH. /AUTHOR/

Media Info

  • Media Type: Print
  • Features: Figures; References;
  • Pagination: pp 35-51
  • Monograph Title: Bridges and structures
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00208235
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Nov 18 1994 12:00AM