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Fully integrated design and analysis of Tensioned Fabric Structures: Finite elements and case studies

机译：张力织物结构的完全集成设计和分析：有限元和案例研究

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摘要

In this paper, novel finite elements are presented for the accurate and reliable fully-integrated design and analysis of Tensioned Fabric Structures (TFS). The true stress fields experienced by TFS are then investigated by means of case studies. Both a sliding cable element and a membrane element are formulated and verified. The membrane element departs from conventional elements for the design and analysis of TFS, in that it is based on the founding assumption that the fabric patterns are flat in their unstressed state. This assumption mirrors the construction process for fabrics, meaning that the analytical structural model converges closer to physical reality. For the case studies, simple structures have been designed, invoking the integrated design procedure, and several design issues have been studied. The case studies show how stress-fields may vary across real TFS and demonstrate the viability of constructing structures with wider patterns, increasing the buildability of TFS. The case studies also scrutinize the assumption made in conventional design procedures that the patterns can be flattened without inducing significant additional stresses. It is shown that these additional stresses may be of sizeable magnitude and their effect should be included in the design of TFS.
机译：在本文中，提出了新颖的有限元，用于张紧织物结构（TFS）的准确，可靠的完全集成设计和分析。然后通过案例研究研究TFS所经历的真实应力场。滑动电缆元件和膜元件均已制定和验证。膜元件与传统的TFS设计和分析元件不同，它基于建立的假设，即织物图案在未受力的状态下是平坦的。该假设反映了织物的构造过程，这意味着分析结构模型收敛得更接近物理现实。对于案例研究，已经设计了简单的结构，并调用了集成设计程序，并且研究了几个设计问题。案例研究显示了应力场如何在实际TFS中变化，并演示了构建具有更广泛图案的结构的可行性，从而提高了TFS的可建造性。案例研究还仔细研究了传统设计程序中的假设，即可以在不产生显着附加应力的情况下使图形变平。结果表明，这些附加应力的大小可能相当大，它们的影响应包括在TFS设计中。

著录项

  • 来源
    《Engineering Structures》 |2010年第4期|1054-1068|共15页
  • 作者

    J.B. Pargana; D. Lloyd-Smith; B.A. Izzuddin;

  • 作者单位

    Department of Civil & Environmental Engineering, Imperial College, London SW7 2AZ, UK;

    Department of Civil & Environmental Engineering, Imperial College, London SW7 2AZ, UK;

    Department of Civil & Environmental Engineering, Imperial College, London SW7 2AZ, UK;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    structures; tension; membrane; fabric; finite elements;

    机译：结构;张力;膜;布;有限元;

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