LARGE-SCALE EXPERIMENTS ON NONLINEAR BEHAVIOR OF SHALLOW FOUNDATIONS SUBJECTED TO STRONG EARTHQUAKES

SOILS AND FOUNDATIONS

RYUICHI ASAI¹  JIRO FUKUI²  MASAHIRO SHIRATO³  SHOICHI NAKATANI⁴  ROBERTO PAOLUCCI⁵  TETSUYA KOUNO³ 

[1] Obayashi Cooperation;Advanced Construction Technology Center;Center for Advanced Engineering Structural Assessment and Research, Public Works Research Institute;Chief Researcher for Management System and Substructures, Center for Advanced Engineering Structural Assessment and Research, Public Works Research Institute;Dipartimento di Ingegneria Strutturale, Politecnico di Milano

关键词: cyclic loading;    (macro-element);    seismic response;    shake table test;    shallow foundation;    (IGC: E3/E8/E14);   

DOI  :  10.3208/sandf.48.673

学科分类：建筑学

来源: Japanese Geotechnical Society / Jiban Kogakkai

【 摘 要 】

References(21)We conducted a series of 1G large-scale shake table tests and cyclic eccentric loading tests of a shallow foundation model. The experimental parameters were the difference in loading methods (i.e., dynamic and static), input seismic motions (i.e., intensity and number of cycles), soil densities (i.e., dense and medium dense), and the ratio of horizontal and overturning moment loads. The experimental data set contains the accelerations and displacements of the soil and foundation as well as the distributions of normal and shear reaction forces at the foundation base. The experimental results provide crucial data to model the coupling effect among vertical, horizontal, and overturning loads, the accumulation of irreversible displacement, and the foundation uplift, and so is one of the most complete benchmark data sets for the development and validation of numerical models for the nonlinear response of shallow foundations to strong earthquakes.

【 授权许可】

Unknown