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可持续预应力混凝土桥梁技术进展:综述
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(1.Dept. of Civil and Environment Engineering, Universitat Politècnica de Catalunya (UPC), BarcelonaTech. C/Jordi Girona 1-3, 08034, Barcelona, Spain; 2.同济大学桥梁工程系,上海 200092)

作者简介:

Seyedmilad Komarizadehasl, D.Eng, Assistant Professor, Working at Construction Engineering, Polytechnic University of Catalonia. Research Direction: Low-cost sensors, Damage recognition.

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基金项目:

FEDER funds—A Way to Make Europe and Spanish Ministry of Economy and Competi-tiveness MICIN/AEI/10.13039/501100011033/(PID2021-126405OB-C31); 中国铁路上海局集团有限公司研发计划项目资助(2023158)


Advancements in Sustainable Prestressed Concrete Bridge Technologies: A Comprehensive Review
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(1.Dept. of Civil and Environment Engineering, Universitat Politècnica de Catalunya (UPC), BarcelonaTech. C/Jordi Girona 1-3, 08034, Barcelona, Spain; 2.Department of Bridge Engineering, Tongji University, Shanghai 200092, China)

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    摘要:

    预应力混凝土桥梁技术的进步日益聚焦于可持续性,以应对日益严峻的环境问题。本综述探讨了近期在预应力混凝土中集成再生混凝土骨料(RCA)和辅助胶凝材料(SCMs)的创新,旨在节约资源、减少废弃物并降低碳排放。可持续的预应力技术,如使用纤维增强聚合物(FRP)筋和形状记忆合金(SMAs),提高了预应力混凝土桥梁的耐久性,延长了使用寿命,并最大限度地减少了维护需求,从而降低了环境影响。生命周期评估(LCA)和基于性能的设计等关键方法因其能在优化结构性能的同时减少生态痕迹而备受瞩目。尽管这些技术具有诸多优势,但全面推广仍面临技术局限、经济挑战和监管限制等障碍。为解决这些问题,本综述提议进一步开展材料开发研究,更新设计指南,进行成本效益分析,并出台支持性政策举措。研究结果表明,在预应力混凝土桥梁建设中集成可持续材料和先进技术,能在不损害结构完整性的前提下提供环境优势。工程师、研究人员、政策制定者和教育工作者之间的协作对于克服这些障碍并推动可持续、有韧性的基础设施建设至关重要。

    Abstract:

    Advancements in prestressed concrete bridge technology have increasingly focused on sustainability in response to growing environmental concerns. This review examines recent innovations in integrating recycled concrete aggregates (RCA) and supplementary cementitious materials (SCMs) within prestressed concrete to conserve resources, reduce waste, and lower carbon emissions. Sustainable prestressing techniques, including the use of fiber-reinforced polymer (FRP) tendons and shape memory alloys (SMAs), increase the durability of prestressed concrete bridges, extend service life, and minimize maintenance needs, thereby reducing environmental impact. Key methodologies, such as lifecycle assessment (LCA) and performance-based design, are highlighted for their roles in optimizing structural performance while reducing the ecological footprint. Despite the benefits, barriers to widespread adoption remain, including technical limitations, economic challenges, and regulatory constraints. To address these issues, this review proposes further research on material development, updated design guidelines, cost?benefit analyses, and supportive policy initiatives. The findings confirm that integrating sustainable materials and advanced technologies in prestressed concrete bridge construction offers environmental advantages without compromising structural integrity. Collaborative efforts among engineers, researchers, policy-makers, and educators are essential to overcoming these barriers and advancing sustainable, resilient infrastructure.

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引用本文

Seyedmilad Komarizadehasl, Al-Amin, Ye Xia, Jose Turmo Advancements in Sustainable Prestressed Concrete Bridge Technologies: A Comprehensive Review. Prestress Technology 2024,2(04):1-25. 10.59238/j. pt.2024.04.001

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  • 收稿日期:2024-10-30
  • 最后修改日期:2424-12-19
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  • 在线发布日期: 2025-01-03
  • 出版日期: 2024-12-30