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Effect of earthquake energy input characteristics on hysteretic damper efficiency

机译：地震能量输入特性对磁滞阻尼器效率的影响

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摘要

Robust performance of hysteretic dampers, used in controlling mid-rise buildings, against change of earthquake characteristics is investigated in this paper. A shear type ten-storey building incorporating hysteretic dampers is studied as a model under the assumption of elastic perfectly plastic behavior for inelastic frame and damper deformations. An energy-based damper performance index is used to evaluate damper overall efficiency. Thirty-five earthquake records are applied and the damper strength is optimized for each earthquake record to obtain the maximum performance index or the damper efficiency. Based on the obtained numerical results it is found that, besides the effect of maximum energy input on damper efficiency, other time-dependant properties such as energy-based effective duration and earthquake dominant period have great influence on the damper efficiency. A factor (α), which represents the combined effect of maximum energy input, effective duration and dominant earthquake period, is also derived for the prediction of damper efficiency.
机译：本文研究了用于控制中层建筑的磁滞阻尼器对地震特性变化的鲁棒性能。在考虑非弹性框架和阻尼器变形的弹性完美塑性行为的假设下，研究了一种包含滞后阻尼器的剪力式十层建筑模型。基于能量的风门性能指标用于评估风门的整体效率。应用了35个地震记录，并针对每个地震记录优化了阻尼器强度，以获得最大性能指标或阻尼器效率。根据获得的数值结果发现，除了最大能量输入对阻尼器效率的影响外，其他基于时间的特性（例如，基于能量的有效持续时间和地震主导周期）对阻尼器效率也有很大影响。还推导了代表最大能量输入，有效持续时间和主要地震周期的综合影响的因子（α），用于预测阻尼器效率。

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