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New Frontiers in Multi-span Prestressed Concrete Deck Construction: A Case Study
Structural Engineering International ( IF 1.1 ) Pub Date : 2020-05-19 , DOI: 10.1080/10168664.2020.1738906
Pedro Pacheco 1 , Hugo Coelho 2 , Pedro Borges 2 , André Resende 2 , Diogo Carvalho 2
Affiliation  

Abstract Until 2016, the in situ, span-by-span, prestressed concrete deck construction of multi-span bridges was limited to spans up to 78 m. This construction method, in some cases, ensures verifiable advantages in terms of construction simplicity and reduction in material consumption. After scientific and technical validation of the organic prestressing technology application in movable scaffolding systems in 2005, and evaluation of its potential features, a long-term multidisciplinary research and development project was developed to evaluate the possibility of using this technology for in situ construction of multi-span decks with spans up to 90 m. In 2018, in Turkey, the first viaduct using this technology anywhere in the world was completed. In the present paper, following a presentation of prior scientific and technological achievements, the main technical data of this case study are given, highlighting its results. This technological achievement is a contribution to the state of the art of bridge engineering and to sustainability.

中文翻译:

多跨预应力混凝土甲板施工的新前沿:案例研究

摘要 直到2016年,多跨桥梁的原位逐跨预应力混凝土桥面施工被限制在78 m以内。在某些情况下,这种施工方法在施工简单和减少材料消耗方面确保了可验证的优势。2005 年有机预应力技术在活动脚手架系统中的应用经过科学技术验证,并对其潜在特性进行了评估,开发了一个长期的多学科研究和开发项目,以评估使用该技术进行现场施工的可能性。 -跨度达 90 m 的跨度甲板。2018 年,在土耳其,世界上第一个使用该技术的高架桥竣工。在本文中,在介绍了先前的科技成果之后,给出了本案例研究的主要技术数据,突出了其结果。这项技术成就是对桥梁工程技术和可持续性的贡献。
更新日期:2020-05-19
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