ABSTRACT

A two-parameter expression for the quantification of topographic effects in ground response analysis at sites located in the vicinity of a topographic feature is presented. The expression is derived from parametric analysis of convex and concave canonical shapes after identifying that the diffracted field in these geometries remains relatively stable in the low dimensionless frequency regime. The proposed expression is used in the estimation of topographic effects at two sites located in realistic topographic scenarios over a given period range. To show the quality of the approximate formula results are compared with numerical simulation values.

中文翻译：

---

地形特征附近地震动放大的简化评估

摘要

提出了用于在位于地形特征附近的站点的地面响应分析中量化地形效应的两参数表达式。在确定这些几何形状中的衍射场在低无量纲频率范围内保持相对稳定后，该表达式源自凸凹规范形状的参数分析。建议的表达式用于估计给定时期范围内位于现实地形情景中的两个地点的地形影响。为了显示近似公式结果的质量，将其与数值模拟值进行了比较。