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首页> 外文期刊>PCI Journal >Evaluation of corrosion-resistant basalt-fiber-reinforced polymer bars and carbon-fiber-reinforced polymer grid reinforcement to replace steel in precast concrete underground utility vaults
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Evaluation of corrosion-resistant basalt-fiber-reinforced polymer bars and carbon-fiber-reinforced polymer grid reinforcement to replace steel in precast concrete underground utility vaults

机译：评估玄武岩纤维增强的聚合物棒和碳纤维增强的聚合物网格增强以替代预制混凝土地下公用设施库中的钢的性能

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摘要

Underground utility vaults are widely used to house utilities and are conventionally designed using steel reinforcement. These structures are often designed with thicker cover concrete in an attempt to prevent the corrosion of steel that is exposed to corrosive environments. Replacing steel with corrosion-resistant fiber-reinforced-polymer materials is beneficial both for production and maintenance. Ultimate and service load behaviors of panels reinforced with basalt-fiber-rein- forced polymer (BFRP) and carbon-fiber-reinforced-polymer (CFRP) grid are discussed in this paper. Failure load and failure mode were used to evaluate the ultimate load behavior; deflection and crack width were used to examine the service load behavior of the tested panels. Test results show that corrosion-resistant reinforcing materials, such as BFRP and CFRP grid, can replace steel in underground utility vaults. Test results are compared with test results from conventional steel-reinforced panels and unreinforced panels and verified against design code recommendations.
机译：地下公用设施库广泛用于容纳公用设施，并且通常使用钢筋进行设计。这些结构通常设计有较厚的覆盖混凝土，以防止暴露在腐蚀性环境中的钢腐蚀。用耐腐蚀的纤维增强聚合物材料代替钢对于生产和维护都是有益的。本文讨论了用玄武岩纤维增强聚合物（BFRP）和碳纤维增强聚合物（CFRP）网格增强的面板的极限和工作荷载性能。失效载荷和失效模式被用来评估最终载荷行为。挠度和裂缝宽度被用来检查被测板的使用载荷行为。测试结果表明，BFRP和CFRP网格等耐腐蚀增强材料可以替代地下公用设施库中的钢。将测试结果与常规钢筋板和非钢筋板的测试结果进行比较，并根据设计规范建议进行验证。

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