During some recent earthquakes, the suspended ceiling system (SCS) in buildings suffered severe damage. The seismic performance of SCS attracted more attention from researchers. In this study, full-scale shaking table tests on two Chinese-style single-layer SCSs with different boundary conditions are conducted. The seismic damage and earthquake responses, including acceleration, displacement, and strain responses, are compared. The effect of the boundary condition on the seismic performance of the SCS is studied. It is found that the seismic performance of the SCS is significantly affected by the boundary condition. Compared with the SCS with the free condition at the boundary, the damage to the SCS installed with seismic clips at the boundary is much slighter. Compared with the SCS with the free condition, the median of acceleration amplification factor (AAF), the peak displacement (PD), and maximum strain of the SCS installed with seismic clips are reduced by up to 63%, 99%, and 84%, respectively. At the end of the tests, the SCS with the free condition at the boundary completely collapsed with 68% of the panels falling, while only 15% of panels fell in the SCS installed with seismic clips. The seismic clips could avoid the falling of the grids from the peripheral support and ensure the integrity of the SCS. With the help of seismic clips installed at the boundary, the responses of the ceiling, such as acceleration, displacement, and strain, decrease significantly, and thereof, the collapse resistance capacity is improved.

中文翻译：

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中式单层吊顶系统抗震性能的振动台试验研究

在最近的一些地震中，建筑物中的吊顶系统 (SCS) 遭受了严重损坏。SCS的抗震性能引起了研究人员的更多关注。在这项研究中，对两个具有不同边界条件的中式单层 SCS 进行了全尺寸振动台试验。比较了地震损伤和地震响应，包括加速度、位移和应变响应。研究了边界条件对SCS抗震性能的影响。结果表明，SCS的抗震性能受边界条件的影响显着。与边界处自由条件的SCS相比，在边界处安装地震夹的SCS的损坏要轻微得多。与免费条件下的SCS相比，安装地震夹的SCS的加速度放大系数（AAF）中值、峰值位移（PD）和最大应变分别降低了63%、99%和84%。试验结束时，边界处自由状态的SCS完全倒塌，68%的面板坠落，而安装了地震夹的SCS只有15%的面板坠落。地震夹可以避免网格从外围支架上脱落，确保SCS的完整性。在边界处安装抗震夹的帮助下，天花板的加速度、位移和应变等响应显着降低，从而提高了抗倒塌能力。分别为 99% 和 84%。试验结束时，边界处自由状态的SCS完全倒塌，68%的面板坠落，而安装了地震夹的SCS只有15%的面板坠落。地震夹可以避免网格从外围支架上脱落，确保SCS的完整性。在边界处安装抗震夹的帮助下，天花板的加速度、位移和应变等响应显着降低，从而提高了抗倒塌能力。分别为 99% 和 84%。试验结束时，边界处自由状态的SCS完全倒塌，68%的面板坠落，而安装了地震夹的SCS只有15%的面板坠落。地震夹可以避免网格从外围支架上脱落，确保SCS的完整性。在边界处安装抗震夹的帮助下，天花板的加速度、位移和应变等响应显着降低，从而提高了抗倒塌能力。地震夹可以避免网格从外围支架上脱落，确保SCS的完整性。在边界处安装抗震夹的帮助下，天花板的加速度、位移和应变等响应显着降低，从而提高了抗倒塌能力。地震夹可以避免网格从外围支架上脱落，确保SCS的完整性。在边界处安装抗震夹的帮助下，天花板的加速度、位移和应变等响应显着降低，从而提高了抗倒塌能力。