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A balance of risk and glory

机译:风险与荣耀的平衡

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摘要

Vermont's narrow scenic roadways and challenging landscapes make innovative bridge construction essential. A recent project in Hartford involved two complete bridge replacements (bridges 43N and 43S) on I-91. These two bridges carry significant traffic over U.S. Rte. 5, which also is a high-volume roadway in Hartford. Both bridges were three-span structures with a pin-and-hanger type connection beyond the piers. These connections became problematic along the fascia beams and had required significant maintenance to address critical defects over the past five years. Because of the extensive maintenance repairs and a desire to remove bridges considered to be fracture critical from the Vermont interstate system, the bridges were programmed for replacement in 2012.
机译:佛蒙特州狭窄的风景秀丽的道路和富挑战性的景观使创新的桥梁建设至关重要。哈特福德最近的一个项目涉及I-91上的两个完整的桥梁更换(桥梁43N和43S)。这两座桥通过美国Rte承载大量流量。 5,这也是Hartford的高车道。这两座桥都是三跨结构,在桥墩之外具有销钉和衣架式连接。这些连接在筋膜梁上成问题,并且在过去五年中需要大量维护以解决关键缺陷。由于进行了广泛的维护维修,并且希望从佛蒙特州际系统中拆除对断裂至关重要的桥梁,因此桥梁计划在2012年进行更换。

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  • 来源
    《Roads & bridges》 |2016年第11期|50-5254-55|共5页
  • 作者

    Kristin Higgins; Tim Davis;

  • 作者单位

    Vermont Agency of Transportation;

    PCL Civil Contractors Inc.;

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  • 原文格式 PDF
  • 正文语种 eng
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