Studies on recent earthquakes highlighted that buildings with minimal structural damage still suffer from extensive damage and failure of nonstructural components. The dropping and damage of suspended ceiling systems, which typically consist of acceleration‐sensitive nonstructural elements, resulted in lengthy functional disruptions and extended recovery time. This article experimentally and analytically examined the vibration properties of an integrated ceiling system considering the interactions with surrounding electrical equipment. The theoretical stiffness and corresponding frequency of electrical equipment were initially derived and then verified by subsequent vibration tests and numerical analyses. The seismic performance of the air conditioner (AC) was evaluated with different installment configurations based on design spectra and floor response spectra. Vibration tests of the suspended integrated ceiling system considering the interactions with surrounding equipment showed that the inclusion of peripheral constraints increased the first horizontal vibration frequency of the ceiling system by a factor of approximately 6. The natural frequencies of all components in the integrated ceiling system were almost identical, which was attributed to the coupled behavior between the ceiling panels and surrounding equipment, emphasizing the effect of interactions between adjacent components during dynamic analysis. Based on the above experimental investigation, an associated numerical model of the integrated ceiling system was created. Finally, corresponding parametric studies that included the interactions with surrounding equipment, reinforcing braces of ACs and strengthening members at the rise‐up location between two elevations were performed.

中文翻译：

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考虑与周围设备的相互作用，研究集成吊顶系统的振动特性

最近地震的研究表明，结构破坏最小的建筑物仍然遭受广泛的破坏和非结构性组件的破坏。吊顶系统的掉落和损坏通常由对加速度敏感的非结构性元素组成，导致长时间的功能中断和延长的恢复时间。本文通过实验和分析方式研究了集成吊顶系统的振动特性，其中考虑了与周围电气设备之间的相互作用。首先得出了电气设备的理论刚度和相应的频率，然后通过随后的振动测试和数值分析进行了验证。根据设计频谱和地板响应频谱，以不同的安装配置评估了空调（AC）的抗震性能。考虑到与周围设备的相互作用，悬吊式集成吊顶系统的振动测试表明，外围约束的加入使吊顶系统的第一个水平振动频率增加了大约6倍。集成吊顶系统中所有组件的固有频率为几乎完全相同，这归因于天花板和周围设备之间的耦合行为，强调了动态分析过程中相邻组件之间相互作用的影响。基于以上实验研究，创建了集成吊顶系统的关联数值模型。最后，