EFFECTS OF STRESS-DILATANCY BEHAVIOR OF SOIL ON LOAD TRANSFER HYSTERESIS IN SOIL-PILE INTERACTION

SOILS AND FOUNDATIONS

YOSHITOMI KIMURA¹  JUNICHI KOSEKI³  JIRO FUKUI²  MASAHIRO SHIRATO² 

[1] Numazu Office of River and National Highway, Ministry of Land, Infrastructure and Transport;Structures Research Group, Public Works Research Institute;Institute of Industrial Science, University of Tokyo

关键词: cyclic load;    dilatancy;    earthquake;    interaction;    pile;    (p-y curves);    (IGC: D6/E12/H1);   

DOI  :  10.3208/sandf.46.281

学科分类：建筑学

来源: Japanese Geotechnical Society / Jiban Kogakkai

【 摘 要 】

References(26)This paper examines the nonlinear hysteretic characteristics of load transfer between soil and piles for random loading. First, we demonstrate that in past experiments the mobilized lateral soil resistance to piles varies with cyclic loading patterns. The soil resistance mobilized against one-sided cyclic loading is smaller than that mobilized against fully-reversed cyclic loading. We then establish that the stress-dilatancy behavior of soil causes such a loading pattern dependency, based on the mechanical property of soil elements subjected to cyclic compression-extension deformation. Finally, the hysteretic characteristics of load transfer between soil and pile associated with the stress-dilatancy effect is modeled as a function of cyclic loading pattern.

【 授权许可】

Unknown