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首页> 外文期刊>Soils and foundations >Empirical fragility curves for settlement-affected buildings: Analysis of different intensity parameters for seven hundred masonry buildings in The Netherlands
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Empirical fragility curves for settlement-affected buildings: Analysis of different intensity parameters for seven hundred masonry buildings in The Netherlands

机译：受住区影响的建筑物的经验脆弱性曲线：荷兰700座砖石建筑的不同强度参数分析

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摘要

The analysis and prediction of damage to buildings resting on highly compressible fine-grained "soft soils" containing (organic) clay and peat are key issues to be addressed for a proper management of subsidence-affected urban areas. Among the probabilistic approaches suggested in literature, those oriented to the generation of empirical fragility curves are particularly promising provided that a comprehensive dataset for both the subsidence-related intensity (SRI) parameters and the corresponding damage severity to buildings is available. Following this line of thought, in the present paper, a rich sample of more than seven hundred monitored (by remote sensing) and surveyed masonry buildings - mainly resting with their (shallow or piled) foundations on soft soils - is analysed in four urban areas of The Netherlands. Probabilistic functions in the form of fragility curves for building damage are retrieved for three different SRI parameters (i.e., differential settlement, rotation and deflection ratio) derived from the processing of Synthetic Aperture Radar (SAR) images by way of a differential interferometric (DInSAR) technique in combination with the severity levels of the damage recorded from the visual inspection of over 700 masonry buildings. As a novelty with respect to earlier similar studies, the work points out the methodological steps to be followed in order to identify the most appropriate SRI parameter among the selected ones. Thus, the objective of the paper is to improve the existing geotechnical forecasting tools for subsidence-affected urban areas, in order to target areas that require more detailed investigations/analyses and/or to select/prioritize foundation repairing/replacing measures. (C) 2019 Production and hosting by Elsevier B.V. on behalf of The Japanese Geotechnical Society.
机译：对包含（有机）粘土和泥炭的高度可压缩的细颗粒“软土”上建筑物的破坏的分析和预测，是正确管理受沉降影响的城市区域的关键问题。在文献中建议的概率方法中，那些针对经验脆性曲线生成的方法特别有希望，前提是可以提供沉陷相关强度（SRI）参数和对建筑物的相应破坏严重性的综合数据集。按照这种思路，在本文中，在四个城市地区分析了超过700个受监视（通过遥感）和受调查的砖石建筑的样本，这些砖石建筑主要靠（浅埋或堆积的）地基放置在软土上。荷兰。对于三种不同的SRI参数（即差分沉降，旋转和挠度比），通过差分干涉法（DInSAR）处理合成孔径雷达（SAR）图像，可以检索出易损性曲线形式的概率函数。技术结合目视检查700多个砖石建筑记录的损坏严重程度。作为对早期相似研究的一种新颖性，这项工作指出了在确定所选SRI参数中最合适的SRI参数时应遵循的方法步骤。因此，本文的目的是为受沉降影响的城市地区改进现有的岩土工程预测工具，以针对需要更详细调查/分析的地区，和/或选择/优先考虑基础修复/更换措施。 （C）2019年由Elsevier B.V.代表日本岩土工程学会制作和主持。

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  • 来源
    《Soils and foundations》 |2019年第2期|380-397|共18页
  • 作者

    Peduto Dario; Korff Mandy; Nicodemo Gianfranco; Marchese Antonio; Ferlisi Settimio;

  • 作者单位

    Univ Salerno, Dept Civil Engn, Via Giovanni Paolo II,132, I-84084 Fisciano, SA, Italy;

    Deltares, POB 177, NL-2600 MH Delft, Netherlands|Delft Univ Technol, Fac Civil Engn & Geosci, Stevinweg 1, NL-2628 CN Delft, Netherlands|Delft Univ Technol, Fac Civil Engn & Geosci, Stevinweg 1, NL-2600 GA Delft, Netherlands;

    Univ Salerno, Dept Civil Engn, Via Giovanni Paolo II,132, I-84084 Fisciano, SA, Italy;

    Univ Salerno, Dept Civil Engn, Via Giovanni Paolo II,132, I-84084 Fisciano, SA, Italy;

    Univ Salerno, Dept Civil Engn, Via Giovanni Paolo II,132, I-84084 Fisciano, SA, Italy;

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  • 正文语种 eng
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  • 关键词

    Soft soils; Settlements; Shallow/piled foundations; Fragility curves; DInSAR;

    机译：软土;定居点;浅/堆积基础;脆弱曲线;dinsar;

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