Reliable Fundamental Frequencies of Soils and Buildings Down to 0.1 Hz Obtained from Ambient Vibration Recordings with a 4.5‐Hz Sensor
Reliable Fundamental Frequencies of Soils and Buildings Down to 0.1 Hz Obtained from Ambient Vibration Recordings with a 4.5‐Hz Sensor
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使用 4.5 Hz 传感器从环境振动记录中获得低至 0.1 Hz 的土壤和建筑物的可靠基本频率
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发表时间：
2013
期刊：
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通讯作者：
B. Guillier
中科院分区：
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作者：
J. Chatelain;B. Guillier
场地效应研究中最广泛使用的方法之一是基于环境振动记录和从水平-垂直频谱比获得的频率峰值（HVSR; Nogoshi和Igarashi，1970;中村，1989）（例如，Fah等人，1997; Gueguen et al.，1998，2000; Alfaro et al.，2001; Duval et al.，2001; Navarro et al.，2001; Cara et al.，2003; Panou et al.，2005; Chatelain，Guillier，and Parvez，2008;本萨莱姆等.，2010; Hellel et al.，2010，2012）。环境振动技术也用于确定建筑物的动态参数（例如，Dunand等人，2004; Farsi et al.，2009; Gueguen et al.，2010; Michel，Gueguen，Arem，et al.，2010; Michel，Gueguen，and Lestuzzi，et al.，2010）。
与实验条件相关的可能偏差以及从此类记录中获得可靠数据所需采取的相关预防措施已被广泛研究（例如，Withers等人，1996; Mucciarelli，1998; Mucciarelli and Monachesi，1998; Bour et al.，1998; Mucciarelli and加利波利，2001; Mucciarelli et al.，2003; Cara et al.，2003; Chatelain，Guillier，Cara，et al.，2008年）。然而，关于应该使用哪种地震仪仍然存在很大的争论。主要的问题涉及地震仪的自然频率，它与可以测量的频率范围直接相关。当处理基本频率低于地震计频率的土壤或建筑物时，问题就出现了。例如，SENSOR（2004）指南不建议使用固有频率高于感兴趣频率的传感器。
因此，最常用的用于记录环境振动的传感器具有0.2或1 Hz的固有频率。一个持续的争议涉及使用.
One of the most widely used methods for site‐effect studies is based on ambient vibration recordings and the frequency peak obtained from the horizontal‐to‐vertical spectral ratio (HVSR; Nogoshi and Igarashi, 1970; Nakamura, 1989) (e.g., Fah et al. , 1997; Gueguen et al. , 1998, 2000; Alfaro et al. , 2001; Duval et al. , 2001; Navarro et al. , 2001; Cara et al. , 2003; Panou et al. , 2005; Chatelain, Guillier, and Parvez, 2008; Bensalem et al. , 2010; Hellel et al. , 2010, 2012). Ambient vibration techniques are also used for the determination of dynamic parameters of buildings (e.g., Dunand et al. , 2004; Farsi et al. , 2009; Gueguen et al. , 2010; Michel, Gueguen, Arem, et al. , 2010; Michel, Gueguen, and Lestuzzi, et al. , 2010).
Possible bias associated with experimental conditions and the related precautions to be taken to obtain reliable data from such recordings have been extensively studied (e.g., Withers et al. , 1996; Mucciarelli, 1998; Mucciarelli and Monachesi, 1998; Bour et al. , 1998; Mucciarelli and Gallipoli, 2001; Mucciarelli et al. , 2003; Cara et al. , 2003; Chatelain, Guillier, Cara, et al. , 2008). However, there is still much debate about the type of seismometer that should be used. The main concern relates to the natural frequency of the seismometer, which is directly linked to the frequency range that can be surveyed. The problem arises when dealing with soils or buildings that have fundamental frequencies lower than that of the seismometer. For example, the SESAME (2004) guidelines do not recommend the use of sensors with a natural frequency above the frequency of interest.
Thus, the most commonly used sensors for recording ambient vibrations have a 0.2‐ or 1‐Hz natural frequency. An ongoing controversy concerns the use …