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地面运动峰值和反应谱的空间相关模型是将目前概率地震灾害分析和危险性分析从单一地点扩展到多个地点的关键分量,并便于在包括空间分布的建筑物和基础设施地震损失评估及震动图插值等工作中广泛应用。尚未得到彻底研究的重要方面之一是不同地震事件中事件间的空间相关变异性。本研究探讨这一问题。为此目的,我们建立了一个合并广泛的地面运动数据库;使用了41个记录完好地震的9000多个记录。分析结果说明,相对于典型的空间相关模型,在地震灾害和危险性计算中需要包括的空间相关变异性范围大约是±0.1个单位。
The spatially correlated model of peak ground motion and response spectra is a key component of the current probabilistic earthquake disaster analysis and risk analysis from a single site to multiple sites and facilitates the assessment of earthquake damage and vibration in buildings and infrastructures that include spatial distribution Graph interpolation widely used in the work. One of the important aspects that have not yet been thoroughly studied is the spatial correlation between events in different earthquake events. This study explores this issue. To this end, we have created a consolidated database of ground-based movements; we have used more than 9,000 records of 41 intact earthquakes. The analysis results show that the range of spatial correlation variability needed to be included in the seismic hazard and hazard calculations relative to a typical spatially correlated model is about ± 0.1 units.