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Data analysis of Utah's I-80 bridges---for the use in the development of accelerated bridge construction standards.

机译：犹他州I-80桥梁的数据分析-用于开发加速桥梁建设标准。

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This study discusses five bridges on Utah's I-80 that were replaced in the summer of 2008 using Accelerated Bridge Construction methods. Each superstructure was built offsite and moved into place with the use of Self-Propelled Modular Transporters. The bridges were instrumented and monitored during the moving process to investigate the effects of moving an entire superstructure into place. Collected data was analyzed to find the level of stress each superstructure experienced during lifting, moving, and placement of each bridge.The change in supporting conditions from when the superstructure was built to being transferred onto Self-Propelled Modular Transporters caused significant stress reversals for all the bridges studied. A two-dimensional analysis was done using the dead load of the structure to find the initial stresses in the superstructure when supported on temporary abutments. The measured change in stress due to lifting was compared to calculations. The difference between these two stresses was defined as the lifting stress in the superstructure. Additionally, dynamic stresses incurred due to the bridge moving are determined to be within design tolerance.

机译：这项研究讨论了犹他州I-80上的五座桥梁，这些桥梁在2008年夏天使用加速桥梁建造方法进行了更换。每个上层建筑都在场外建造，并使用自动模块化运输车移动到位。在移动过程中对桥梁进行了检测和监控，以研究将整个上部结构移动到位的影响。分析收集的数据以找出每个上部结构在每个桥梁的提升，移动和放置过程中承受的应力水平。从上部结构建造到转移到自动模块化运输车上的支撑条件的变化导致所有构件的应力显着反转研究过的桥梁。使用结构的静载荷进行了二维分析，以找到支撑在临时基台上的上部结构中的初始应力。将测量到的由于提升引起的应力变化与计算结果进行比较。这两个应力之差定义为上部结构中的提升应力。另外，确定因桥梁移动而引起的动态应力在设计公差之内。

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作者
Rosvall, Erik S.;
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Utah State University.;

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授予单位 Utah State University.;
学科 Engineering Civil.
学位 M.S.
年度 2010
页码 89 p.
总页数 89
原文格式 PDF
正文语种 eng
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2. ACCELERATED BRIDGE CONSTRUCTION IN UTAH [J] . Public works . 2012,第13期

机译：犹他州加快桥梁建设
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机译：加速的桥梁建设到达犹他州
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机译：繁忙/立交桥的异地/加速建设（旧标题：使用加速桥施工技术替换繁忙的城市立交桥）
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机译：鹰眼桥的设计和现场施工使用超高性能混凝土来加速桥梁施工。
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机译：加速桥梁施工桥梁梁运动标准的研究

Data analysis of Utah's I-80 bridges---for the use in the development of accelerated bridge construction standards.

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