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Conceptual Design of Hybrid Cable-Stayed Bridge with Central Span of 1000 m Using UHPC

机译:使用UHPC的中心跨1000 m混合斜拉桥的概念设计。

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摘要

Ultra-high performance concrete (UHPC) is featured by a compressive strength 5 times higher than that of ordinary concrete and by a high durability owing to the control of the chloride penetration speed by its dense structure. The high strength characteristics of UHPC offer numerous advantages like the reduction of the quantities of cables and foundations by the design of a lightweight superstructure in the case of the long-span bridge preserving its structural performance through axial forces and structures governed by compression. This study conducted the conceptual design of a hybrid cable-stayed bridge with central span of 1000 m and exploiting 200 MPa-class UHPC. The economic efficiency of the conceptual design results of the hybrid cable-stayed bridge with central span of 1000 m and of Sutong Bridge, the longest cable-stayed bridge in the world, was analyzed.
机译:超高性能混凝土(UHPC)的抗压强度是普通混凝土的5倍,并且由于其致密结构控制氯化物的渗透速度,因此具有很高的耐久性。 UHPC的高强度特性具有许多优势,例如在大跨度桥梁的情况下通过设计轻型上部结构来减少电缆和地基的数量,从而通过轴向力和受压控制的结构来保持其结构性能。这项研究进行了中心跨距为1000 m并采用200 MPa级UHPC的混合斜拉桥的概念设计。分析了中心跨距为1000 m的混合斜拉桥和世界上最长的斜拉桥苏通大桥的概念设计结果的经济效率。

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  • 来源
    《Engineering》 |2013年第9期|744-750|共7页
  • 作者单位

    Structural Engineering Research Division, Korea Institute of Construction Technology, Goyang, South Korea;

    Structural Engineering Research Division, Korea Institute of Construction Technology, Goyang, South Korea;

    Structural Engineering Research Division, Korea Institute of Construction Technology, Goyang, South Korea;

    Structural Engineering Research Division, Korea Institute of Construction Technology, Goyang, South Korea;

    Global Technology Cooperation Center, Korea Institute of Construction Technology, Goyang, South Korea;

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

    Ultra-High Performance Concrete; UHPC; Cable-Stayed Bridge; 200 MPa-Class; Sutong Bridge;

    机译:超高性能混凝土;UHPC;斜拉桥;200 MPa级;苏通大桥;

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