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首页> 外文期刊>Journal of earth system science >Relative Seismic Shaking Vulnerability Microzonationusing An Adaptation Of The Nakamura Horizontalrnto Vertical Spectral Ratio Method
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Relative Seismic Shaking Vulnerability Microzonationusing An Adaptation Of The Nakamura Horizontalrnto Vertical Spectral Ratio Method

机译：运用Nakamura Horizo​​ntalrnto Vertical Spectral Ratio Method的相对震荡脆弱性微区划

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摘要

An alternative seismic shaking vulnerability survey method to computational intensive theoretical modelling of site response to earthquake, and time consuming test versus reference site horizontal ratio methods, is described. The methodology is suitable for small to large scale engineering investigations. Relative seismic shaking vulnerability microzonation using an adaptation of the Nakamura horizontal to vertical spectral ratio method provides many advantages over alternative methods including: low cost; rapid field phase (100 km2 can easily be covered by a single operator in 5 days); low and flexible instrumentation requirements (a single seismometer and data logger of almost any type is required); field data can be collected at any time during the day or night (the results are insensitive to ambient social noise); no basement rock reference site is required (thus eliminating trigger synchronisation between reference and multiple test site seismographs); rapid software aided analysis; insensitivity to ground-shaking resonance peaks; ability to compare results obtained from non-contiguous survey fields. The methodology is described in detail, and a practical case study is provided, including mapped results. The resulting microzonation maps indicate the relative seismic shaking vulnerability for built structures of different height categories within adjacent zones, with a resolution of approximately 1 km.
机译：描述了一种对现场地震响应进行计算密集型理论建模的替代地震晃动脆弱性调查方法，以及耗时的测试与参考地点水平比的方法。该方法适用于小型到大型工程研究。使用中村水平与垂直光谱比方法的相对地震晃动脆弱性微区划提供了优于替代方法的许多优势，包括：低成本；快速现场阶段（一个操作员只需5天即可轻松覆盖100 km2）；仪器要求低而灵活（几乎需要任何类型的单个地震仪和数据记录仪）；白天或晚上的任何时间都可以收集现场数据（结果对周围的社会噪音不敏感）；不需要地下岩石参考点（从而消除了参考点和多个测试点地震仪之间的触发同步）；快速的软件辅助分析；对摇晃的共振峰不敏感；比较从非连续调查字段获得的结果的能力。详细介绍了该方法，并提供了实际案例研究，包括映射结果。生成的微区图显示了相邻区域内不同高度类别的已建成结构的相对地震震动脆弱性，分辨率约为1 km。

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