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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Site-specific ground response analysis.
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Site-specific ground response analysis.

机译：特定地点的地面响应分析。

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The local soil conditions have a profound influence on ground response during earthquakes. The recent destructive earthquakes have again demonstrated that the topography, nature of the bedrock, and nature and geometry of the depositional soils are the primary factors that influence local modifications to the underlying motion. We highlight the engineering importance of site-specific ground response analysis and difficulties faced in conducting a complete ground response analysis. The steps to be followed in conducting a meaningful site amplification study are explained. The difficulties/uncertainties in choosing an input ground motion are discussed, and the various methods currently available for site amplification study are summarized. A case study on ground response analysis of a site in Ahmedabad City in Gujarat, India, during the Bhuj earthquake is presented. The study shows that the varying degree of damage to multistorey buildings in the close proximity of Sabarmati river area in Ahmedabad was essentially due to amplification of the ground. Amplification was attributed to the fact that the natural frequencies of the building and frequency content of the ground motion recorded on the ground floor of the Regional Passport Staff Quarters building are in close proximity.
机译：当地的土壤条件对地震期间的地面响应有深远的影响。最近的破坏性地震再次表明，地形，基岩的性质以及沉积土壤的性质和几何形状是影响对底层运动进行局部修改的主要因素。我们着重于特定地点的地面响应分析的工程重要性以及进行完整的地面响应分析所面临的困难。解释了进行有意义的位点扩增研究应遵循的步骤。讨论了选择输入地面运动的困难/不确定性，并总结了当前可用于场地放大研究的各种方法。本文以印度普吉大地震期间在印度古吉拉特邦艾哈迈达巴德市的一个场地的地面响应分析为例。研究表明，艾哈迈达巴德的萨巴尔马蒂河地区附近多层建筑受到不同程度的破坏，主要是由于地面的扩大。放大归因于这样一个事实，即建筑物的自然频率和记录在区域护照工作人员宿舍地下一层的地面运动的频率含量非常接近。

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