Pile-supported structures incorporating batter piles are commonly used, and can be installed both on the horizontal and inclined ground. Recent studies have considered the positive role of batter piles during earthquakes, highlighting their satisfactory contribution to structural seismic performance. However, in these structures, even though the dynamic system responses can vary greatly depending on the ground slope, few previous studies have evaluated the seismic performance of batter piles relative to the ground slope. Therefore, this study evaluates the seismic performance of pile-supported structures with batter piles, relative to the ground slope using dynamic centrifuge model tests. The acceleration, displacement, moment, and axial force of the system were experimentally derived and reviewed, and the pile moment and axial force (M–N) interaction diagrams of the pile cross-sections were analyzed. The installation of the batter piles resulted in a greater reduction in the system response in the inclined-ground model (acceleration: −48%, displacement: −50%, and moment: −84%) compared to that in the horizontal-ground model (acceleration: −27%, displacement: +650%, and moment: −77%). Overall, batter piles showed better seismic performance in the inclined-ground model than in the horizontal-ground model.

中文翻译：

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离心模型试验根据地面坡度对带桩桩基支护结构的动力特性

通常使用带有面糊桩的桩支撑结构，并且可以将其安装在水平地面和倾斜地面上。最近的研究已经考虑了面糊桩在地震中的积极作用，突出了它们对结构抗震性能的令人满意的贡献。但是，在这些结构中，即使动力系统的响应随地面的坡度而变化很大，但先前的研究很少评估面糊桩相对于地面的抗震性能。因此，本研究使用动力离心模型试验评估了面糊桩相对于地面坡度的桩支撑结构的抗震性能。通过实验得出并回顾了系统的加速度，位移，力矩和轴向力，桩力矩和轴向力（分析了桩横截面的M–N相互作用图。与水平地面模型相比，安装面糊桩可以使倾斜地面模型中的系统响应（加速度：−48％，位移：−50％和力矩：−84％）有更大的降低（加速度：−27％，位移：+ 650％，力矩：−77％）。总体而言，在水平地面模型中，倾斜面模型中的面糊桩显示出更好的抗震性能。