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首页> 外文期刊>Engineering Structures >Experimental and numerical study on structural behavior of a single timber Textile Module
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Experimental and numerical study on structural behavior of a single timber Textile Module

机译：单一木材纺织模块结构行为的实验和数值研究

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摘要

The present work investigates an innovative class of timber structure with potential applications in roofing, facade and bridge construction, called Timberfabric. The development of Timberfabric structures originates from the approach of harnessing the structural, modular and qualities of textiles in timber construction (Weinand and Hudert, 2010) [9]. Timberfabric structures are comprised of repetitive arrangements of one or more structural unit cells called Textile Modules. When properly designed, one obtains a modular and lightweight structure with interesting and unusual geometrical and structural qualities. This paper focuses on the single timber Textile Module. Based on the finite element (FE) method, a reliable procedure is proposed for modeling the overall assembly process of the Textile Module. For comparison, Textile Module prototypes are constructed at two different scales (large and intermediate scales) with different assembly conditions. The proposed geometrically nonlinear FE model allows evaluation of the stresses that are induced during the construction process and which may affect the structural integrity of the module. In particular, the risk of failure during assembly is identified using the anisotropic Tsai-Hill criterion. The structural behavior of the timber Textile Module is then investigated through bending tests using the constructed prototypes. During the loading procedure, the vertical deflections are measured at different locations on the prototype surface by means of external displacement transducers. Using the FE model, the corresponding deformed shapes are simulated by applying the bending loads on the pre-stressed Textile Module. Experimental displacements and FE predictions are thus compared and found to be in good agreement.
机译：本工作调查了一种创新的木材结构类别，其在屋面，外墙和桥梁建筑中的潜在应用被称为Timberfabric。 Timberfabric结构的发展源自在木材建筑中利用纺织品的结构，模块和质量的方法（Weinand和Hudert，2010）[9]。木结构结构由一个或多个称为纺织模块的结构单元的重复排列组成。经过适当的设计，就可以获得具有有趣和不同寻常的几何和结构品质的模块化轻质结构。本文着重于单一木材纺织模块。基于有限元（FE）方法，提出了一种可靠的程序来对纺织品模块的整个组装过程进行建模。为了进行比较，纺织品模块原型以两种不同的比例（大型和中等比例）和不同的组装条件构造而成。提出的几何非线性有限元模型可以评估在施工过程中产生的应力，这些应力可能会影响模块的结构完整性。特别是，使用各向异性的Tsai-Hill准则确定了组装过程中的故障风险。然后，使用构建的原型通过弯曲测试来研究木材纺织模块的结构性能。在加载过程中，通过外部位移传感器在原型表面的不同位置测量垂直挠度。使用有限元模型，通过在预应力纺织模块上施加弯曲载荷来模拟相应的变形形状。因此，对实验位移和有限元预测进行了比较，发现它们吻合良好。

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  • 来源
    《Engineering Structures》 |2013年第1期|557-568|共12页
  • 作者

    M. Sistaninia; M. Hudert; L. Humbert; Y. Weinand;

  • 作者单位

    IBO1S Laboratory for Timber Construction, Ecole Polytechnique Federate de Lausanne (EPFL), CH-1015 Lausanne, Switzerland;

    IBO1S Laboratory for Timber Construction, Ecole Polytechnique Federate de Lausanne (EPFL), CH-1015 Lausanne, Switzerland;

    IBO1S Laboratory for Timber Construction, Ecole Polytechnique Federate de Lausanne (EPFL), CH-1015 Lausanne, Switzerland;

    IBO1S Laboratory for Timber Construction, Ecole Polytechnique Federate de Lausanne (EPFL), CH-1015 Lausanne, Switzerland;

  • 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

    timber textile module; construction stresses; experimental method; finite element modeling;

    机译：木材纺织模块;施工压力;实验方法有限元建模;

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