First Smart/Innovative Carbon Fiber Reinforced Polymer (CFRP) Bridge in the USA

在美国，碳纤维增强聚合物（CFRP）增强材料的设计指南和技术数据的缺乏是导致复合材料在预应力混凝土桥梁中使用延迟的主要原因。因此，任何政府机构都没有建造或考虑使用CFRP的单一预应力混凝土桥梁。因此，碳纤维增强材料在美国的使用仅限于研究活动和随后的技术出版物。提出的研究计划旨在制定设计指南，以帮助设计师安全设计CFRP预应力结构组件，并构建一个半比例的桥梁模型和两个预应力混凝土梁，并在不同的荷载条件下进行测试。拟议的调查将产生技术数据，这些数据将被用于建造美国第一座经批准的CFRP预应力混凝土桥梁。此外，未来将由支持国家机构承担的预应力混凝土桥梁项目将从生成的数据中受益匪浅。

The lack of availability of design guidelines and technical data for the use of carbon fiber reinforced polymer (CFRP) reinforcements has contributed significantly to the delay in using composites materials in prestressed concrete bridges in the US. Consequently, no single prestressed concrete bridge using CFRP has been constructed or even considered by any government agency. As a result, the use of CFRP reinforcements in the US has been limited to research activities and subsequent technical publications. The proposed research program is tailored to develop design guidelines to aid the designers to safely desin CFRP prestressed structural components, and to construct a one-half scale bridge model and two prestressed concrete girders and test them under different loading conditions. The proposed investigation will result in technical data that will be adopted in the construction of the first authorized CFRP prestressed concrete bridge inn the US. Furthermore, future prestressed concrete bridge projects that will be undertaken by the supporting state agencies will benefit signigicantly from the generated data.