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Structural behaviour of an all-composite road bridge

机译：全复合路桥的结构特性

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Fibre reinforced polymer composites have become an integral part of the bridge industry because of their versatility, high strength-to-weight ratio and enhanced durability. The novel idea of an all-composite structural system for road bridges has been proposed for the first time in Poland. The FRP bridge is a simply supported structure with 10.0m long span and 7.66m wide deck. The superstructure consists of four U-shaped girders bonded with sandwich deck slab, fabricated by means of a vacuum infusion. The bridge configuration, a finite element model developed for design and the proof test results are described in this paper. The test has shown that an all-composite bridge can meet the relevant strength and deflection design criteria. To develop an understanding of the long-term performance of the FRP bridge, a monitoring scheme utilizing distributed fibre-optic sensors was implemented to assess any changes in the bridge structural behaviour.
机译：纤维增强的聚合物复合材料因其多功能性，高强度重量比和增强的耐用性而已成为桥梁行业不可或缺的一部分。波兰首次提出了一种用于公路桥梁的全复合结构系统的新想法。 FRP桥是一个简单支撑的结构，跨度为10.0m，甲板宽度为7.66m。上层建筑由四个U形梁组成，这些U形梁通过真空灌注的方式与夹心甲板板粘结在一起。本文描述了桥梁配置，为设计开发的有限元模型以及验证测试结果。测试表明，全复合材料桥可以满足相关的强度和挠度设计标准。为了加深对FRP桥梁长期性能的了解，已实施了一种利用分布式光纤传感器的监测方案，以评估桥梁结构性能的任何变化。

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