NUMERICAL SIMULATION OF MODEL TESTS OF PIER-SHALLOW FOUNDATION SYSTEMS SUBJECTED TO EARTHQUAKE LOADS USING AN ELASTO-UPLIFT-PLASTIC MACRO ELEMENT

SOILS AND FOUNDATIONS

ROBERTO NOVA³  JIRO FUKUI¹  CLAUDIO DI PRISCO³  MASAHIRO SHIRATO²  SHOICHI NAKATANI²  ROBERTO PAOLUCCI³  TETSUYA KOUNO² 

[1] Advanced Construction Technology Center;Center for Advanced Engineering Structural Assessment and Research, Public Works Research Institute;Dipartimento di Ingegneria Strutturale, Politecnico di Milano

关键词: macro-element;    numerical simulation;    shake table test;    shallow foundation;    (IGC: E12/E14/H1);   

DOI  :  10.3208/sandf.48.693

学科分类：建筑学

来源: Japanese Geotechnical Society / Jiban Kogakkai

【 摘 要 】

References(23)Cited-By(1)A dynamic analysis model for the nonlinear behavior of a shallow foundation subjected to seismic loads is developed. A macro-element approach is revised assuming elasto-uplift-plastic behavior, in which uplifting and coupling effects of vertical, horizontal, and moment loads are taken into account. Large-scale shake table experiments of model pier footings are also conducted and simulated using the revised macro-element model. The numerical result reveals that the shape of the hysteresis loops for coupled load-displacement relationships is predicted very well, including the effects of uplift. In addition, the revised model can account for settlement with some inclination that has accumulated during the excitation.

【 授权许可】

Unknown