IFSTTAR-A1, IFSTTAR-A2, IFSTTAR-A3 - IFSTTAR Experiments

Building upon the database of LEAP-UCD-2017, twenty centrifuge model tests of liquefaction and lateral spreading are shared and compared in this archive. Some of the experiments were conducted according to the conventional centrifuge scaling laws; others were conducted according to a generalized scaling law. Please see the general report section of the published project for an overview comparison and background of all of the experiments. The comparisons presented in the general report section will serve as an index to help the users find individual experiments of interest. This data from the model tests is published as ten separate experiments in this archive (one experiment per centrifuge facility). Each "experiment" includes one or more model tests and each model test includes between one and three destructive shaking events.
All of the tests modeled a 4 m thick deposit of Ottawa F-65 sand with a 5-degree surface slope in a rigid box. The tests covered a range of ground motion intensities and a range of relative densities to define the median response and the sensitivity of the response to relative density and shaking intensity. The ten centrifuge facilities involved in this test program included Cambridge University (UK), Ehime University (Japan), IFSTTAR (France), NCU (Taiwan), KAIST (Korea), Kyoto University (Japan), RPI (USA), UC Davis (USA), Tokyo Institute of Technology (Japan) and Zhejiang University (China).

本数据集基于LEAP-UCD-2017数据库，于本存档库中共享并对比了20组液化（liquefaction）与侧向滑移（lateral spreading）离心机模型试验（centrifuge model test）。部分试验遵循常规离心机相似律（scaling laws）开展，其余则采用广义相似律（generalized scaling law）实施。如需了解所有试验的概况对比与背景信息，请查阅已发布项目的总报告章节。总报告章节中呈现的对比内容可作为索引，协助使用者快速定位感兴趣的单组试验。本存档库将该模型试验数据整理为10组独立试验（每家离心机机构对应一组试验）。每组“试验”包含1次或多次模型试验，而每次模型试验包含1至3次破坏性振动加载事件（destructive shaking events）。
所有试验均在刚性箱体内模拟了厚度为4米的Ottawa F-65砂沉积层，且设置了5°的地表坡度。试验涵盖了多种地震动强度（ground motion intensities）与相对密实度（relative densities）工况，以明确液化响应的中位数特征，以及响应对相对密实度与振动强度的敏感性。参与本试验项目的10家离心机机构包括：英国剑桥大学、日本爱媛大学、法国IFSTTAR、中国台湾NCU、韩国KAIST、日本京都大学、美国RPI、美国UC Davis、日本东京工业大学以及中国浙江大学。