Abstract Nonlinearity potential of soil-foundation interface has such unknown aspects inspired by dynamic inherence of earthquake for embedded foundations. Accordingly, in this paper, a set of shake table tests in 1 g condition for three reduced-scale rocking “SDOF-foundation” systems with different foundation embedment depths was carried out through applying harmonic waves with three successive increasing levels of acceleration amplitude. Test results showed, for all specimens, rocking isolation caused reduction of transferred acceleration to the superstructure during moderate and strong excitation levels. Moreover, based on results, difference between superstructure maximum acceleration (in dynamic tests) and calculated theoretical value was limited for embedded foundations in lieu of static results. Also, the influence of successive excitations on residual rocking stiffness, fundamental period and damping ratio at time instant were explored. Finally, from a comparative point of view, it was concluded that the maximum moment experienced in dynamic test was lower than one of static experiment.

中文翻译：

---

基于振动台试验的“单自由度嵌入式地基”系统的动态摇摆响应

摘要 埋入式地基受地震动力固有性启发，土-地基界面的非线性势具有未知的方面。相应地，本文通过施加加速度幅值连续递增的三个等级的谐波，对不同地基埋设深度的三个缩尺摇摆“单自由度基础”系统在1 g条件下进行了一组振动台试验。测试结果表明，对于所有试样，在中等和强激励水平期间，摇摆隔离导致传递到上部结构的加速度减少。此外，基于结果，上部结构最大加速度（在动态测试中）与计算理论值之间的差异对于嵌入式基础而不是静态结果是有限的。还，探讨了连续激励对残余摇摆刚度、基波周期和瞬时阻尼比的影响。最后，从比较的角度来看，得出的结论是，动态试验中经历的最大力矩低于静态试验。