In seismology and earthquake engineering, it is fundamental to identify and characterize the pulse-like features in pulse-type ground motions. To capture the pulses that dominate structural responses, this study establishes congruence and shift relationships between response spectrum surfaces. A similarity search between spectrum surfaces, supplemented with a similarity search in time series, has been applied to characterize the pulse-like features in pulse-type ground motions. The identified pulses are tested in predicting the rocking consequences of slender rectangular blocks under the original ground motions. Generally, the prediction is promising for the majority of the ground motions where the dominant pulse is correctly identified.

在地震学和地震工程中，识别和表征脉冲型地震动中的脉冲特征至关重要。为了捕获主导结构响应的脉冲，本研究建立了响应谱表面之间的同余和平移关系。频谱表面之间的相似性搜索，辅以时间序列中的相似性搜索，已被应用于表征脉冲型地震动中的脉冲状特征。测试所识别的脉冲，以预测细长矩形块在原始地面运动下的摇摆后果。一般来说，对于正确识别主脉冲的大多数地面运动来说，预测是有希望的。