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Contribution to the seismic analysis of industrial brickwork chimneys through the finite element method (Spanish text).

机译：通过有限元方法（西班牙文本）为工业砖砌烟囱的地震分析做出了贡献。

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摘要

There are many masonry historical constructions which stability is so weak that they could fail under the action of light earthquakes, strong winds or unexpected actions.; The goal of this work is to go deep into the knowledge and understanding of the masonry behaviour and to propose a suitable constitutive model valid to be applied to the industrial chimneys from the XIX century, which are protected elements in the Comunidad Valenciana.; All this things and the clear set of the seismic behaviour of several industrial chimneys, their failure modes using different cracking criteria and making a comparison among them, finding the maximum earthquake that can be stood by these chimneys, and the proposal of a spectrum for the maximum tensile stress achieved for a particular chimney are the core and main contributions of this Thesis.; To achieve all these goals, an extensive overview of the main constitutive models collected from the scientific literature is presented and two different failure criteria are selected to be applied to all the chimneys.; All of them try to pick the low tensile resistance that characterize masonry, the non linear problem and the damage induce in the structures.; Several artificial accelerograms are generated to be introduced to the structures and the failure modes are studied.; In addition, the response spectrum for tensile stresses is generated as the medium value obtained for all the chimneys and the maximum peak ground acceleration level that each industrial chimney can stand is obtained.
机译：许多砖石建筑的稳定性很弱，以至于在地震，强风或意想不到的作用下可能会失效。这项工作的目的是深入了解和了解砌体行为，并提出一种适用于本世纪十九世纪工业瓦伦西亚工业烟囱的合适本构模型，该模型是巴伦西亚自治区的受保护元素。所有这些事情以及几个工业烟囱的地震行为的清晰集合，使用不同裂化准则的破坏模式并进行比较，找到了这些烟囱可以承受的最大地震，并提出了频谱建议。特定烟囱所能达到的最大拉应力是本论文的核心和主要贡献。为了实现所有这些目标，提出了对从科学文献中收集的主要本构模型的广泛概述，并选择了两种不同的失效标准以应用于所有烟囱。他们都试图选择砌体的低抗拉强度，非线性问题以及结构中引起的损伤。生成了几个人工加速度图，并将其引入到结构中，并对破坏模式进行了研究。另外，产生拉伸应力的响应谱作为所有烟囱获得的中值，并获得每个工业烟囱可以承受的最大地面加速峰值。

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  • 作者

    Pallares Rubio, Francisco Javier.;

  • 作者单位

    Universidad Politecnica de Valencia (Spain).;

  • 授予单位 Universidad Politecnica de Valencia (Spain).;
  • 学科 Engineering Civil.
  • 学位 Dr.
  • 年度 2004
  • 页码 690 p.
  • 总页数 690
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 建筑科学;
  • 关键词

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