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首页> 外文会议>Structures congress >Structural Health Monitoring of a Bridge Deck Reinforced with Carbon Fiber Reinforced Polymeric Grids in Rollinsford, New Hampshire
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Structural Health Monitoring of a Bridge Deck Reinforced with Carbon Fiber Reinforced Polymeric Grids in Rollinsford, New Hampshire

机译：新罕布什尔州罗林斯福德的碳纤维增强聚合物网格增强桥面的结构健康监测

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In December, 2000, the Rollins Road Bridge in Rollinsford, New Hampshire was opened to traffic. The Rollins Road Bridge was constructed with funding from the Innovative Bridge Research and Construction (IBRC) program administered by the Federal Highway Administration (FHWA). A requirement of the IBRC program is the use of high performance and innovative materials. The deck of the Rollins Road Bridge is highperformance concrete (HPC) reinforced with carbon fiber reinforced polymers (CFRP). These materials were selected to create a durable concrete superstructure that is free of metallic reinforcement. Also as part the IBRC program, Rollins Road Bridge was instrumented with a series of strain and temperature sensors to monitor and study the structural behavior of the bridge deck. This paper describes a program of structural health monitoring for the Rollins Road Bridge, the first bridge in the United States to contain high performance concrete (HPC) and state-of-the-art carbon fiber reinforced polymeric (CFRP) grids Over 80 fiber optic sensors, measuring strain and temperature, were installed in the bridge during construction, including both the CFRP and concrete material in the deck and the concrete girders. Strain distributions collected from these fiber optic sensors shows that the maximum strains in the actual bridge were less than 100 micro strains, while deflections of the girders and deck were less than 0.1 in (2.5 mm) under a sustained truck load within the first two years of service in 2002. This paper focuses on the potential use of the collected data, from both strain and temperature sensors to conduct in-service performance monitoring. The recent data will be compared with the baseline data collected in 2002.
机译：2000年12月，新罕布什尔州罗林斯福德的罗林斯公路大桥正式通车。 Rollins公路桥梁是由联邦公路管理局（FHWA）管理的创新桥梁研究与建设（IBRC）计划资助建造的。 IBRC计划的要求是使用高性能和创新材料。 Rollins Road Bridge的桥面是用碳纤维增强聚合物（CFRP）增强的高性能混凝土（HPC）。选择这些材料以创建没有金属加固的耐用混凝土上部结构。作为IBRC计划的一部分，Rollins公路桥梁还配备了一系列应变和温度传感器，以监测和研究桥梁桥面的结构性能。本文介绍了Rollins公路桥梁的结构健康监测程序，Rollins公路桥梁是美国第一座包含高性能混凝土（HPC）和最先进的碳纤维增强聚合物（CFRP）网格的桥梁 在施工期间，桥梁中安装了80多个测量应变和温度的光纤传感器，包括面板和混凝土大梁中的CFRP和混凝土材料。从这些光纤传感器收集的应变分布表明，在前两年的持续卡车载荷下，实际桥梁中的最大应变小于100微应变，而大梁和桥面的挠度小于0.1英寸（2.5毫米）。于2002年投入使用。本文着重研究从应变和温度传感器收集的数据在进行运行中性能监控方面的潜在用途。将最近的数据与2002年收集的基准数据进行比较。

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