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首页> 外文期刊>Journal of Reinforced Plastics and Composites >Critical factors influencing the dynamic characteristics of fibre-reinforced plastic bridges — a parametric study
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Critical factors influencing the dynamic characteristics of fibre-reinforced plastic bridges — a parametric study

机译：影响纤维增强塑料桥动力特性的关键因素—参数研究

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Conventional bridge materials have certain environmental factors limiting their service life. These factors include termite or fungi attack on timber, chemical attacks on concrete and corrosion for steel. These facts point to the necessity of development of new construction materials and related technologies for use in bridges exposed to aggressive environmental conditions. Fibre-reinforced plastics have long been used in weight-sensitive applications such as aerospace, marine, biomedical and sports industries due to their high specific stiffness and strength. Its superior structural performance depends primarily upon its anisotropic and heterogeneous characteristics and can be optimized to the requirement of the user. However, its infrastructural application is somewhat recent. Since fibre-reinforced plastic can be moulded to various shapes, is corrosion resistant, has lower lifecycle cost and durability, it can be used in constructing bridges or its parts. However, the fibre-reinforced plastic bridge industry lacks simplified and practical design guidelines and specifications. A box girder bridge has been taken from available literature as an example and parametric studies have been carried out using general purpose finite element software ABAQUS to investigate the critical factors affecting the dynamic responses of such a fibre-reinforced plastic bridge.
机译：常规桥梁材料具有某些限制其使用寿命的环境因素。这些因素包括白蚁或真菌对木材的侵蚀，对混凝土的化学侵蚀以及对钢的腐蚀。这些事实表明，有必要开发新的建筑材料和相关技术，以用于暴露于恶劣环境条件下的桥梁。纤维增强塑料因其高的比刚度和强度而长期用于对重量敏感的应用，例如航空航天，海洋，生物医学和体育行业。其优越的结构性能主要取决于其各向异性和异质性，并且可以根据用户要求进行优化。但是，其基础设施应用有些新近。由于纤维增强塑料可以模制成各种形状，耐腐蚀，具有较低的生命周期成本和耐用性，因此可以用于构建桥梁或其零件。但是，纤维增强塑料桥业缺乏简化和实用的设计指南和规格。箱梁桥取材自现有文献作为示例，并使用通用有限元软件ABAQUS进行了参数研究，以研究影响这种纤维增强塑料桥动力响应的关键因素。

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