Coal-fired thermal power plants play important roles in daily life but are vulnerable to earthquakes. This paper presents a novel cable-damper stopper with linear damping and carries out a series of shaking table tests to evaluate its performance on a 1/25-scaled coal-fired thermal power plant. The stopper consists of a cable, a linear viscous damper and a steel block attached to the boiler. The seismic responses of the structure equipped with different sets of cable-damper stoppers which are of different damping coefficients and diameters of cables were studied and evaluated, where three seismic ground motions with two intensities were selected as input motions. The obtained acceleration and displacement responses of the support structure and the boiler reveal that the stopper cable effectively restrains the relative displacement between the boiler and the support structure. Furthermore, it can be found that the damping affects the seismic protection performance of the stopper depending on the intensity of the boiler vibration. In the paper, the working mechanism of the stopper is also analyzed based on the test data. It turns out that the stopper is more effective when it works under severe earthquakes.

中文翻译：

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燃煤火电厂新型电缆阻尼器减震性能振动台试验

燃煤火力发电厂在日常生活中发挥着重要作用，但很容易受到地震的影响。本文提出了一种新型的线性阻尼电缆阻尼器，并进行了一系列振动台试验，以评估其在 1/25 比例燃煤火力发电厂的性能。塞子由一根缆绳、一个线性粘性阻尼器和一个附在锅炉上的钢块组成。对不同阻尼系数和索直径的不同套索阻尼器结构的地震响应进行了研究和评估，其中选择了3种2种烈度的地震动作为输入运动。获得的支撑结构和锅炉的加速度和位移响应表明，止动索有效地抑制了锅炉与支撑结构之间的相对位移。此外，可以发现阻尼器根据锅炉振动的强度影响止动件的抗震性能。文中还根据试验数据分析了塞子的工作机理。事实证明，该塞子在强烈地震下工作时效果更佳。