Life-Cycle Cost and Life-Cycle Assessment Analysis at the Design Stage of a Fiber-Reinforced Polymer-Reinforced Concrete Bridge in Florida
Life-Cycle Cost and Life-Cycle Assessment Analysis at the Design Stage of a Fiber-Reinforced Polymer-Reinforced Concrete Bridge in Florida
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DOI：
10.1520/acem20180113
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发表时间：
2019-01-01
影响因子：
1.4
通讯作者：
Nanni, Antonio
中科院分区：
文献类型：
--
作者：
Cadenazzi, Thomas;Dotelli, Giovanni;Nanni, Antonio
为了支持和促进基础设施中创新技术的部署，量化其对经济和环境影响的影响至关重要。玻璃纤维增强聚合物 (GFRP) 棒和碳纤维增强聚合物 (CFRP) 股线是经过验证的钢筋混凝土 (RC) 和预应力混凝土 (PC) 结构的耐腐蚀解决方案。对纤维增强聚合物（FRP）在海水和盐污染混凝土中的性能进行了研究，结果表明该技术是一种可行的解决方案。然而，FRP-RC/PC 部署的经济和环境影响尚未得到充分研究。本文涉及佛罗里达州一座 FRP-RC/PC 桥梁的生命周期成本 (LCC) 和生命周期评估 (LCA) 分析。该桥设计为完全采用 FRP 钢筋和钢绞线加固，不包括任何碳钢 (CS) 钢筋。此外，还考虑在桥梁的一些构件中部署海水混凝土。 LCC 和 LCA 分析在设计阶段进行。在施工阶段收集了有关设备、人工费率、消耗品、燃料消耗和处置的数据，并进行了相应的细化分析。 FRP-RC/PC 桥设计与传统的 CS-RC/PC 替代方案进行了比较。我们讨论了显着差异，以确定从经济和环境角度来看影响最小的解决方案。
To support and promote the deployment of innovative technologies in infrastructure, it is fundamental to quantify their implications in terms of both economic and environmental impacts. Glass Fiber-Reinforced Polymer (GFRP) bars and Carbon Fiber-Reinforced Polymer (CFRP) strands are validated corrosion-resistant solutions for Reinforced Concrete (RC) and Prestressed Concrete (PC) structures. Studies on the performance of Fiber-Reinforced Polymer (FRP) reinforcement in seawater and salt-contaminated concrete have been conducted and show that the technology is a viable solution. Nevertheless, the economic and environmental implications of FRP-RC/PC deployment have not been fully investigated. This article deals with the Life-Cycle Cost (LCC) and Life-Cycle Assessment (LCA) analyses of an FRP-RC/PC bridge in Florida. The bridge is designed to be entirely reinforced with FRP bars and strands and does not include any Carbon Steel (CS) reinforcement. Furthermore, the deployment of seawater concrete in some of the elements of the bridge is considered. LCC and LCA analyses are performed at the design stage. Data regarding equipment, labor rates, consumables, fuel consumption, and disposal were collected during the construction phase, and the analysis was refined accordingly. The FRP-RC/PC bridge design is compared with a traditional CS-RC/PC alternative. Salient differences are discussed to determine the least-impactful solution from both an economic and environmental perspective.