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首页> 外文期刊>Bulletin of earthquake engineering >Seismic safety of low ductility structures used in Spain
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Seismic safety of low ductility structures used in Spain

机译：西班牙使用的低延展性结构的地震安全性

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The most important aspects of the design, seismic damage evaluation and safety assessment of structures with low ductility like waffle slabs buildings or flat beams framed buildings are examined in this work. These reinforced concrete structural typologies are the most used in Spain for new buildings but many seismic codes do not recommend them in seismic areas. Their expected seismic performance and safety are evaluated herein by means of incremental non linear structural analysis (pushover analysis) and incremental dynamic analysis which provides capacity curves allowing evaluating their seismic behavior. The seismic hazard is described by means of the reduced 5% damped elastic response spectrum of the Spanish seismic design code. The most important results of the study are the fragility curves calculated for the mentioned building types, which allow obtaining the probability of different damage states of the structures as well as damage probability matrices. The results, which show high vulnerability of the studied low ductility building classes, are compared with those corresponding to ductile framed structures.
机译：在这项工作中，研究了结构最重要的方面，地震延展性评估以及延展性低的结构（如华夫式平板建筑或扁梁框架建筑）的安全性评估。这些钢筋混凝土结构类型在西班牙最常用于新建建筑物，但许多地震法规并不建议在地震区域使用它们。在此，通过增量非线性结构分析（推覆分析）和增量动态分析来评估其预期的抗震性能和安全性，增量动态分析提供了允许评估其地震行为的能力曲线。地震危险通过西班牙地震设计规范中减小的5％阻尼弹性响应谱来描述。该研究最重要的结果是针对上述建筑物类型计算出的易损性曲线，该曲线可获取结构不同损坏状态的概率以及损坏概率矩阵。结果表明，所研究的低延展性建筑类别具有很高的脆弱性，并与相应的延性框架结构进行了比较。

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