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Dynamic stiffness of deep foundations with inclined piles

机译:倾斜桩深基础的动力刚度

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摘要

The influence of inclined piles on the dynamic response of deep foundations and superstructures is still not well understood and needs further research. For this reason, impedance functions of deep foundations with inclined piles, obtained numerically from a boundary element-finite element coupling model, are provided in this paper. More precisely, vertical, horizontal, rocking and horizontal-rocking crossed dynamic stiffness and damping functions of single inclined piles and 2×2 and 3×3 pile groups with battered elements are presented in a set of plots. The soil is assumed to be a homogeneous viscoelastic isotropic half-space and the piles are modeled as elastic compressible Euler-Bernoulli beams. The results for different pile group configurations, pile-soil stiffness ratios and rake angles are presented.
机译:斜桩对深层基础和上部结构动力响应的影响仍未得到很好的理解,需要进一步研究。因此,本文提供了由边界元-有限元耦合模型数值获得的带有倾斜桩的深层基础的阻抗函数。更精确地,在一组图中显示了单个倾斜桩以及带有受力单元的2×2和3×3桩组的垂直,水平,摇摆和水平摇摆的交叉动力刚度和阻尼函数。假定土壤为均质的粘弹性各向同性半空间,并且将桩建模为弹性可压缩的Euler-Bernoulli梁。给出了不同桩组配置,桩土刚度比和前角的结果。

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  • 来源
    《Earthquake Engineering & Structural Dynamics》 |2010年第12期|P.1343-1367|共25页
  • 作者单位

    Instituto Universitario de Sistemas Inteligentes y Aplicaciones Numericas en Ingenieria (IUSIANI), Universidad de Las Palmas de Gran Canaria, Edificio Central del Parque Cientifico y Tecnologico del Campus Universitario de Tafira, 35017 Las Palmas de Gran Canaria, Spain;

    rnInstituto Universitario de Sistemas Inteligentes y Aplicaciones Numericas en Ingenieria (IUSIANI), Universidad de Las Palmas de Gran Canaria, Edificio Central del Parque Cientifico y Tecnologico del Campus Universitario de Tafira, 35017 Las Palmas de Gran Canaria, Spain;

    rnInstituto Universitario de Sistemas Inteligentes y Aplicaciones Numericas en Ingenieria (IUSIANI), Universidad de Las Palmas de Gran Canaria, Edificio Central del Parque Cientifico y Tecnologico del Campus Universitario de Tafira, 35017 Las Palmas de Gran Canaria, Spain;

    rnInstituto Universitario de Sistemas Inteligentes y Aplicaciones Numericas en Ingenieria (IUSIANI), Universidad de Las Palmas de Gran Canaria, Edificio Central del Parque Cientifico y Tecnologico del Campus Universitario de Tafira, 35017 Las Palmas de Gran Canaria, Spain;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    inclined piles; soil-structure interaction; pile group; dynamic stiffness;

    机译:斜桩土壤-结构相互作用;桩组动态刚度;

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