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Field testing and capacity-ratings of advanced composite materials short-span bridge superstructures

机译：先进复合材料短跨桥上部结构的现场测试和额定容量

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摘要

Recently, there have been many theoretical and experimental studies on advanced composite materials (ACM) bridges in various fields over the world. Compared with a reinforced concrete or steel bridge, an ACM bridge has more advantages in strength, stiffness, transportation, and installation. Many demonstration projects have been carried out in the US, and Europe. They are also being developed and tested in South Korea. In South Korea the first of all ACM short-span bridge superstructure was installed on a public highway system in May 2002. Since these composite materials are new to bridge applications, reliable data is not available for their in-service performance. This paper describes in-service performance assessments of all ACM bridge superstructures. To investigate its in-service performance, field load testing and visual inspections were conducted under an actual service environment. The paper includes the presentation and discussion for the ACM bridge capacity rating based on the stress modification coefficients obtained from the test results. The test result indicates that the ACM bridge superstructure has no structural problems and is structurally performing well in-service as expected. The results may provide a baseline data for future field ACM bridge capacity rating assessments and also serve as part of a long-term performance of ACM bridge superstructure.
机译：近来，在世界各地的许多领域中对高级复合材料（ACM）桥进行了许多理论和实验研究。与钢筋混凝土或钢桥相比，ACM桥在强度，刚度，运输和安装方面具有更多优势。在美国和欧洲已经进行了许多示范项目。它们也在韩国进行开发和测试。在韩国，第一个ACM短跨度桥梁上部结构于2002年5月安装在公共高速公路系统上。由于这些复合材料是桥梁应用中的新材料，因此无法获得可靠的数据以反映其在役性能。本文介绍了所有ACM桥梁上部结构的在役性能评估。为了调查其服务性能，在实际服务环境下进行了现场负载测试和外观检查。本文根据从测试结果中获得的应力修正系数，对ACM桥梁的额定容量进行了介绍和讨论。测试结果表明，ACM桥梁上部结构没有结构问题，并且在结构上可以按预期运行。结果可为将来的现场ACM桥梁承载力评估提供基准数据，也可作为ACM桥梁上部结构长期性能的一部分。

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