Centrifuge Shake Table Tests on Rocking Footings on Sand

Abstract

This paper focuses on characterizing the cyclic behavior of a heavily loaded rocking footing supporting a bridge pier using centrifuge-model scale shake table tests. The intention of the test presented in this paper is to provide a baseline response for a footing that is expected to fail in the mode of rocking while supported on a uniform loose sand deposit. After presenting the details of the experimental setup and instrumentation plan, the results from a cyclic loading experiment are presented. Similar to the majority of tests in the FoRDy database, the footings investigated in this study were heavily loaded and experienced overturning failure.

Dynamic Performance of Model Rocking Footings on Sand Reinforced by Soil-Cement Columns

“…The model soil conditions, footing geometry and loading, and test equipment and instrumentation are all described in detail in Newgard et al (2022). A centrifuge g-level of N = 25 was adopted in this study.…”