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Concrete-Filled Steel Tubular Tied Arch Bridge System: Application to Columbus Viaduct

机译:钢管混凝土系杆拱桥系统:在哥伦布高架桥上的应用

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摘要

The tied arch bridge system provides a unique solution to the several challenges associated with the construction of railroad overpasses and water crossings, such as restricted vertical clearance, undesirable or impractical arrangement for intermediate piers, and extremely limited traffic control during construction. The paper presents the design and construction challenges pertinent to a novel concrete-filled steel tubular tied arch system that was first introduced in the Ravenna viaduct (53 m) and applied later to the Columbus viaduct (79 m). The main structural components of the Columbus viaduct are described in detail and the advantages of the system are summarized. The detailed analysis of the system at different construction stages and design checks of main components and connections under various loading conditions are discussed. Experimental investigations conducted on concrete-filled steel tubular arch and tie specimens to validate their theoretical capacities are demonstrated. The three-dimensional nonlinear finite element model developed to analyze the tie-to-arch connection and evaluate the lateral stability of arches is presented. Finally, the main construction procedures and challenges of the three tied arches of the Columbus viaduct are highlighted.
机译:系留式拱桥系统为与铁路立交桥和水道建设相关的若干挑战提供了独特的解决方案,例如垂直间距受限,中间墩的布置不理想或不切实际,以及施工期间的交通管制极为有限。本文介绍了与新型钢管混凝土系拱系统有关的设计和施工挑战,该系统首先引入拉文纳高架桥(53 m),然后应用于哥伦布高架桥(79 m)。详细描述了哥伦布高架桥的主要结构组件,并总结了该系统的优点。讨论了系统在不同施工阶段的详细分析以及在各种载荷条件下主要部件和连接的设计检查。证明了对钢管混凝土拱和标本进行的实验研究,以验证其理论能力。提出了三维非线性有限元模型,用于分析拱与拱的连接并评估拱的横向稳定性。最后,重点介绍了哥伦布高架桥的三个捆绑拱的主要施工程序和面临的挑战。

著录项

  • 来源
    《Journal of bridge engineering》 |2012年第1期|p.107-116|共10页
  • 作者单位

    Durham School of Architectural Engineering and Construction, Univ. of Nebraska-Lincoln, 111 S. 67th St., Omaha, NE 68182;

    Con-Fab California Corporation, 1910 E. Lathrop Road, Lathrop, CA 95330 formerly, Post-Doctoral Fellow, Civil Engineering, Univ. of Nebraska-Lincoln, 1110'S. 67th St., Omaha, NE 68182;

    Durham School of Architectural Engineering and Construction, Univ. of Nebraska-Lincoln, 1110 S. 67th St., Omaha, NE 68182;

    Civil Engineering, Univ. of Nebraska-Lincoln, 1110 S. 67th St., Omaha, NE 68182-0178;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    arch; bridges; concrete; steel; tubes; design; construction; finite-element analysis; lateral stability;

    机译:拱;桥梁具体;钢;管;设计;施工;有限元分析;横向稳定性;

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